Wednesday, October 12, 2016
Monday, August 22, 2016
No updates for some more time
Hi guys,
Due to personal constraints I am not in a position to post regular updates. Hope to see you soon. Have a great time.
Due to personal constraints I am not in a position to post regular updates. Hope to see you soon. Have a great time.
Friday, July 29, 2016
Taking a break
Hi Guys,
I am taking a break for 15 days. There wont't be any updates during this period
I am taking a break for 15 days. There wont't be any updates during this period
Tuesday, July 26, 2016
Adult female ungulates: The importance getting to know about lambing habitat: Parturition, nursery, and predation sites.
Desert
bighorn sheep lambing habitat: Parturition, nursery, and predation sites
Rebekah
C. Karsch,James W. Cain,Eric M. Rominger and Elise J. Goldstein
The Journal of
Wildlife Management,Volume 80, Issue 6, pages 1069–1080, August 2016
Fitness
of female ungulates is determined by neonate survival and lifetime reproductive
success. Therefore, adult female ungulates should adopt behaviors and habitat
selection patterns that enhance survival of neonates during parturition and
lactation. Parturition site location may play an important role in neonatal
mortality of desert bighorn sheep (Ovis canadensis mexicana) when lambs
are especially vulnerable to predation, but parturition sites are rarely documented
for this species. The objectives of the researchers were to assess
environmental characteristics at desert bighorn parturition, lamb nursery, and
predation sites and to assess differences in habitat characteristics between
parturition sites and nursery group sites, and predation sites and nursery
group sites. They used vaginal implant transmitters (VITs) to identify
parturition sites and capture neonates. We then compared elevation, slope,
terrain ruggedness, and visibility at parturition, nursery, and lamb predation
sites with paired random sites and compared characteristics of parturition
sites and lamb predation sites to those of nursery sites. When compared to
random sites, odds of a site being a parturition site were highest at
intermediate slopes and decreased with increasing female visibility. Odds of a
site being a predation site increased with decreasing visibility. When compared
to nursery group sites, odds of a site being a parturition site had a quadratic
relationship with elevation and slope, with odds being highest at intermediate
elevations and intermediate slopes. When the researchers compared predation
sites to nursery sites, odds of a site being a predation were highest at low
elevation areas with high visibility and high elevation areas with low
visibility likely because of differences in hunting strategies of coyote (Canis
latrans) and puma (Puma concolor). Parturition sites were lower in
elevation and slope than nursery sites. The researchers signs off stating that
understanding selection of parturition sites by adult females and how habitat
characteristics at these sites differ from those at predation and nursery sites
can provide insight into strategies employed by female desert bighorn sheep and
other species during and after parturition to promote neonate survival.
Sunday, July 24, 2016
Getting to know how the spatial configuration of residential development affects the foraging behavior and prey habits of top predators
Spatial
characteristics of residential development shift large carnivore prey habits
Justine
A. Smith,Yiwei Wan and Christopher
C. Wilmers
The
Journal of Wildlife Management, Volume 80, Issue 6, pages 1040–1048, August 2016
Understanding how anthropogenic development affects food
webs is essential to implementing sustainable growth measures, but we have very
little knowledge about how the spatial configuration of residential development
affects the foraging behavior and prey habits of top predators. The researchers
examined the influence of the spatial characteristics of residential
development on prey composition in the puma (Puma concolor). They
located the prey remains of kills from 32 pumas fitted with global positioning
system (GPS) satellite collars to determine the housing characteristics most
influencing prey size and species composition. They examined how differences in
housing density, proximity, and clustering influenced puma prey size and
diversity. They found that at both local (150 m) and regional (1 km) spatial
scales surrounding puma kill sites, housing density (but not the clustering of
housing) was the greatest contributor to puma consumption of small prey,which
primarily comprised human commensals or pets. The species-specific
relationships between housing density and prey occupancy and detection rates
assessed using camera traps were not always similar to those between housing
density and proportions of diet, suggesting that pumas may exercise some diet
selectivity. The influence of development on puma diet may affect puma disease
risk, energetics, and demographics because of altered species interactions and
prey-specific profiles of energetic gain and cost. The researchers say their
results can help guide future land-use planners seeking to minimize the impacts
of development on wild species interactions and community dynamics.
Friday, July 22, 2016
Want protection from malaria? Here is an unlikely recipe. Sleep with a chicken next to your bed
A study by Swedish University of Agricultural Sciences
and Addis Ababa University, reported in the open access Malaria Journal,
has shown that malaria-transmitting mosquitoes actively avoid feeding on
certain animal species such as chickens, using their sense of smell. The
scientists say odours emitted by species such as chickens could provide
protection for humans at risk of mosquito-transmitted diseases.
To find out which species the mosquitoes prefer, the
research team collected data on the population of human and domestic animals in
three Ethiopian villages. They also collected blood-fed mosquitoes to test for
the source of the blood that the mosquitoes had fed on. People living in the
areas in which the research was conducted share their living quarters with
their livestock. The researchers found that while Anopheles arabiensis strongly
prefers human over animal blood when seeking hosts indoors, it randomly feeds
on cattle, goats and sheep when outdoors, but avoids chickens in both settings,
despite their relatively high abundance.
Thursday, July 21, 2016
Scientists urge replacement of animals in antibody production
The global antibody industry is worth 80 billion dollars and
relies heavily on animals to produce the antibodies that are used to detect the
vast range of molecules indicative of state of health, safety or the
environment.Scientists from the Universities of Nottingham, Toronto, Utrecht
and Lund in Sweden say millions of animals are still being authorised for routine
scientific procedures when there is a tried and tested alternative.
They add that the use of animals in consumer society is effectively 'hidden'
and products assumed to be 'animal-friendly' are mere ruse. Animal friendly
antibody production technique using bacteriophage viruses instead of live
animals is being overlooked.
The scientists are proposing a seven point EU led action
plan by the wider scientific community and biotechnology industry.
• The replacement of animal immunisation methods for
antibody production, including the import of antibodies and antibody-containing
products unless it can be demonstrated on a case-by-case basis that Animal
Friendly affinity reagents (AFAs) cannot be applied.
• An expert working group should be established to set up a
roadmap for moving away from animal immunisation-based techniques for antibody
production, in light of the scientific feasibility and commercial availability
of AFAs.
• Implementation programmes should be set up to facilitate
the transfer of establishments to the new technology. These should include
centres of excellence for training in AFA-based technologies to ensure that
antibody producers are fully supported.
• Measures should be taken to ensure that animal-derived
antibodies manufactured outside the EU adhere to European standards to avoid
ethics dumping in regions where animal welfare is less well regulated.
• The European Union Reference Laboratory for alternatives
to animal testing (EURL ECVAM) should extend its field of activities with its
international collaborative partners to include the production of AFAs and
their subsequent use.
• EU and national agencies who are committed to the 3Rs and
who execute EU regulations at an operational level for the commercial
production of cosmetics, medicines, household products, and food or to
safeguard our health or the environment should reinforce this action and no
longer permit the import or use of animal-derived antibodies and
antibody-containing products aimed to monitor, detect, diagnose, or extract
targets of interest.
• Subsequent reports from the Commission to the Council and
the European Parliament on the statistics on the number of animals used for
experimental and other scientific purposes should include data on the use of
animals for antibody production as an independent category.
Details appear in the latest issue of journal Trends in
Biotechnology. Read it HERE
Wednesday, July 20, 2016
Urban pigeons might come in handy to detect lead and other toxic compounds in cities
A new study of pigeons by Fayme Cai and Rebecca Calisi
in New York City shows that levels of lead in the birds track with
neighborhoods where children show high levels of lead exposure. In their study
the researchers used feral pigeon (Columba livia) as a lead bioindicator
in New York City. They collected blood lead level records from 825
visibly ill or abnormally behaving pigeons from various NYC neighborhoods
between 2010 and 2015. They found that blood lead levels were significantly
higher during the summer, an effect reported in children. Even
miniscule amounts of lead are extremely detrimental to child health.
The researchers provide support for the use of the feral
pigeon as a bioindicator of environmental lead contamination for the first time
in the U.S. and for the first time anywhere in association with rates of
elevated blood lead levels in children. They say this information has the
potential to enable measures to assess, strategize, and potentially circumvent
the negative impacts of lead and other environmental contaminants on human and
wildlife communities. The research provide a powerful example of how monitoring
pigeon biology may help us to better understand the location and prevalence of
lead, with the aim of providing greater awareness and devising prevention
measures.
Details appear in the latest edition of journal Chemosphere
Saturday, July 16, 2016
Using an incentive-based strategy as a complement to command-and-control, community- and norm-based strategies may help achieve greater conservation effectiveness
Effects of payments for ecosystem services on wildlife habitat recovery
Mao-Ning Tuanmu,Andrés Viña,Wu Yang,Xiaodong ChenAshton M. Shortridge and Jianguo Liu
Conservation Biology, Volume 30, Issue 4, pages 827–835, August 2016
Serous debates on policies that might simultaneously promote sustainable management of protected areas and improve the living conditions of local people have been going on round the world. This has been engendered by conflicts between local people's livelihoods and conservation that has stymied many well intended conservation measures. The authors of this paper say, few empirical assessments of the effectiveness of government-sponsored payments-for-ecosystem-services (PES) schemes have been conducted, and even fewer assessments have directly measured their effects on ecosystem services. Here the researchers conducted an empirical and spatially explicit assessment of the conservation effectiveness of one of the world's largest PES programs through the use of a long-term empirical data set, a satellite-based habitat model, and spatial autoregressive analyses on direct measures of change in an ecosystem service (i.e., the provision of wildlife species habitat). Giant panda (Ailuropoda melanoleuca) habitat improved in Wolong Nature Reserve of China after the implementation of the Natural Forest Conservation Program. The improvement was more pronounced in areas monitored by local residents than those monitored by the local government, but only when a higher payment was provided. The results suggest that the effectiveness of a PES program depends on who receives the payment and on whether the payment provides sufficient incentives. As engagement of local residents has not been incorporated in many conservation strategies elsewhere in China or around the world, the results also suggest that using an incentive-based strategy as a complement to command-and-control, community- and norm-based strategies may help achieve greater conservation effectiveness and provide a potential solution for the park versus people conflict.
\
Friday, July 15, 2016
American black bears may be able to recognize from photographs things they know in real life
Many animals show
what is called “picture-object recognition”, in which they respond to pictures
and their corresponding real-life objects in similar ways .A study which
involved a black bear (Ursus americanus), called Migwan and a computer screen has come up with the
finding that American black bears may be able to recognize things they know in
real life, such as pieces of food or humans, when looking at a photograph of
the same thing. The study was led by Zoe Johnson-Ulrich and Jennifer Vonk of
Oakland University in the US.
Migwan was first presented with two sets of objects new to
her. Her ability to recognize these later, when presented with photographs
including the items she had learned, was then assessed. In a reverse task, she
was also trained on the photographs of two different sets of objects and tested
on the transfer to real objects. Migwan
was able to recognize, on a photograph, the visual features of objects or
natural stimuli she already knew. It is an ability that bears share with hens,
rhesus monkeys, pigeons, tortoises and horses.
Johnson-Ulrich and Vonk however caution that the ability of
bears to recognize features of real objects within 2D-images does not
necessarily mean they understand the representational nature of photographs. It
is also still uncertain how well bears are able to recognize tangible objects
which they first saw on a photograph before being introduced to the real thing.
Further research using other bears is therefore needed to verify if the animals
can transfer information from pictures to objects, too.
Details appear in the latest edition of journal Animal
Cognition.
The above post is prepared from materials provided
by Springer.
Thursday, July 14, 2016
The role of behavioral ecology in improving wildlife conservation and management
A systematic survey
of the integration of animal behavior into conservation
Oded Berger-Tal,Daniel T. Blumstein,Scott Carroll,Robert N.
Fisher,Sarah L. Mesnick,Megan A. Owen,David Saltz,Colleen Cassady St. Claire
and Ronald R. Swaisgood
Conservation Biology,Volume 30, Issue 4, pages 744–753, August
2016
The role of behavioral ecology in improving wildlife
conservation and management has been the subject of lot of discussions in
recent years. Here the researchers sought to answer 2 foundational questions
about the current use of behavioral knowledge in conservation: To what extent
is behavioral knowledge used in wildlife conservation and management, and how
does the use of animal behavior differ among conservation fields in both
frequency and types of use? They searched the literature for intersections
between key fields of animal behavior and conservation and created a systematic
heat map (i.e., graphical representation of data where values are represented
as colors) to visualize relative efforts. Some behaviors, such as dispersal and
foraging, were commonly considered (mean [SE] of 1147.38 [353.11] and 439.44
[108.85] papers per cell, respectively). In contrast, other behaviors, such as
learning, social, and anti-predatory behaviors were rarely considered (mean
[SE] of 33.88 [7.62], 44.81 [10.65], and 22.69 [6.37] papers per cell,
respectively). In many cases, awareness of the importance of behavior did not
translate into applicable management tools. Their results challenge previous
suggestions that there is little association between the fields of behavioral
ecology and conservation and reveals tremendous variation in the use of different
behaviors in conservation. They recommend that researchers focus on examining
underutilized intersections of behavior and conservation themes for which
preliminary work shows a potential for improving conservation and management,
translating behavioral theory into applicable and testable predictions, and
creating systematic reviews to summarize the behavioral evidence within the
behavior-conservation intersections for which many studies exist.
Wednesday, July 13, 2016
Latest Elephant Trade Information System (ETIS) analysis
Latest Elephant
Trade Information System (ETIS) analysis, prepared by TRAFFIC on behalf of
Parties to CITES is now available
ETIS is a comprehensive information system to track illegal
trade in ivory and other elephant products. It shares the same objectives as
those set out for MIKE in Resolution Conf. 10.10
(Rev. CoP16), with the difference that its aim is to record and analyse
levels and trends in illegal trade, rather than the illegal killing of
elephants. The central component of ETIS is a database on seizures of elephant
specimens that have occurred anywhere in the world since 1989. The seizure
database is supported by a series of subsidiary database components that assess
law enforcement effort and efficiency, rates of reporting, domestic ivory
markets and background economic variables. These database components are
time-based and country-specific and are used to mitigate factors that cause
bias in the data and might otherwise distort the analytical results. The
subsidiary database components also assist in interpreting and understanding
the results of the ETIS analyses. Since its inception, ETIS has been managed by
TRAFFIC on behalf of the CITES Parties and is currently housed at the TRAFFIC
East/Southern Africa office in Harare, Zimbabwe.
Read the report HERE
Friday, July 08, 2016
‘Coexistence with wildlife'
As the population of human being burgeons most species of
large carnivores and large herbivores depend on being able to occupy
human-dominated landscapes for survival. This invariably leads to conflicts
between humans and wildlife. Researchers
Neil Carter, assistant professor in the Human-Environment Systems
Research Center in the College of Innovation and Design at Boise State, and
John Linnell, a senior research scientist at the Norwegian Institute for Nature
Research, say, there is a need to develop a more nuanced and realistic
understanding of what this state looks like. They have recently published a
paper titled “Co-Adaptation Is Key to Coexisting with Large Carnivores” in the journal Trends in Ecology and
Evolution. The paper is based on real life situations in North
America, Europe and Asia on species such as wolves, tigers, leopards, lynx and
bears.
The researchers note that large carnivores need larger
ranges than many protected areas afford. This means that carnivores often come
in contact with human populations that are sometimes less than welcoming. They suggest
that mutual adaptations is the key to success, implying that not only do wild
animals have to behaviourally adapt to the presence of humans, but humans also
have to adapt their behavior to the presence of wild animals.
Studies conducted by the authors and their colleagues have
shown that many species of large carnivores show an incredible ability to
occupy heavily modified human-dominated landscapes. Many human societies also
show a wide range of adaptations to the proximity of large carnivores. This
includes changes to the way they keep livestock and the adoption of cultural or
religious practices to "negotiate" their relationship with their wild
neighbours. However, in many areas these
adaptations have been lost, either due to a temporary absence of large
carnivores or in the face of changing social-economic situations. The result is
often severe conflicts of both an economic and social nature.The necessity of
adaptation by both humans and the carnivores is a key first step towards
transforming conflict to coexistence. Conservation efforts that fail to focus
on both halves of the equation are doomed to fail.
A factor for success has to do with realising that a state
of coexistence does not involve an idealized absence of conflict. Rather than
trying to eliminate all risk, which can mean eliminating a species, the authors
explore ways to keep risks below tolerable levels. That involves understanding
what factors influence tolerance. While some communities may not tolerate any
risks from carnivores, others may tolerate high risks because they attribute
carnivores with ecological and cultural benefits that exceed those risks. In
many communities, the priorities of various stakeholder groups are still
sometimes at odds, and there is a reduced trust in authorities. Interventions
such as new policies must take into account local concerns, the authors say,
such as the adoption of novel decision-making strategies that give voice to
varying viewpoints.
The researchers believe that the challenges are surmountable
through the help of community leaders, conservation organizations, and state or
federal agencies. Insights from studies on coexistence "can help reconcile
debates about carnivore conservation in shared landscapes and advance broader
discourses in conservation," they wrote, "such as those related to
rewilding, novel ecosystems, and land-sharing vs. land-sparing."
"In many ways large carnivores represent the ultimate
test for human willingness to make space for wildlife on a shared planet. If it
is possible to find ways to coexist with these species, it should be possible
to coexist with any species", says John Linnell, co-author on the study.
A major chunk of the post is reprinted from materials provided
by Norwegian Institute for Nature
Research
Thursday, July 07, 2016
To crack the meaning of monkey calls linguists team up with primatologists
Linguists teaming up with primatologists have brought the
general methods of contemporary linguistics to bear on monkey morphology
(pertaining to the structure of calls), syntax (how the calls are put together
into sequences), and semantics (what calls and call sequences mean), building
on several earlier studies conducted within primatology.
The research was headed by DR Philip Schlenker a senior
researcher at Institut Jean-Nicod within France's National Center for
Scientific Research (CNRS) and a Global Distinguished Professor at New York University,
associating with Emmanuel Chemla, a research scientist at France's National
Center for Scientific Research (CNRS), and Klaus ZuberbĂĽhler, a professor at
Switzerland's University of Neuchâtel, appears
Philippe Schlenker, says “We can now study the form and
meaning of monkey calls using methods from theoretical titi monkeys’
linguistics. Using this approach, we can compare one
monkey species to another and see, for instance, that some of their calls have
been preserved over three million years."
Details appear in the latest issues of journals Natural
Language & Linguistic Theory, Lingua
and Theoretical Linguistics.
Wednesday, July 06, 2016
Snow leopards may be more common than previously thought
Snow leopard (Panthera uncia), is the world’s,
most mysterious and the least studied big cat. New studies are now breaking fresh
ground bringing encouraging results about their numbers. New estimates focused
on areas described as 'Snow Leopard Conservation Units,' covering only 44
percent of the snow leopard's extensive range (which extends over roughly 3
million km2 or 1,158,306 square miles) suggests that there may be between 4,678
and 8,745 snow leopards just in these units. Previous estimates were only between 3,920 and 7,500. Satellite telemetry and camera traps gave
an impetus to the new studies.
Despite the good news about the numbers of snow leopard, the
species still faces multiple pressures. They are still regularly poached for their beautiful fur and killed
in retaliation for taking herder's livestock.
Details appear in Snow Leopards, published by
Elsevier Press and edited by Dr. Tom McCarthy and Dr. David Mallon.
Tuesday, July 05, 2016
Frigate birds: Airborne for months at a time
A
telemetric study of the trajectory and flight strategy of frigate birds(Fregata minor), led by Henri
Weimerskirch of the Centre d'études biologiques de Chizé (CNRS/Université de La
Rochelle) in partnership with colleagues based in La RĂ©union, the United
Kingdom, Canada, and Germany has revealed that they can remain airborne for
over two months. This happens during their transoceanic migrations. Frigate
birds make their transoceanic flights between Africa and Indonesia. The birds
have extraordinary ability to glide and climb in updrafts without beating its
wings. They track the edge of the doldrums to take advantage of favorable winds
and strong convection.Locally, they use a roller-coaster flight, relying on
thermals and wind to soar within a 50- to 600-meter altitude band under cumulus
clouds and then glide over kilometers at low energy costs. To deal with the
local scarcity of clouds and gain longer gliding distances, birds regularly
soar inside cumulus clouds to use their strong updraft, and they can reach
altitudes of 4000 meters, where freezing conditions occur.
Details
appear in the latest issue of journal Science.
Monday, July 04, 2016
New tarantula species named after Gabriel GarcĂa Márquez
A new
tarantula genus and species, formally called Kankuamo marquezi, has
been discovered in Sierra Nevada de Santa Marta, Colombia. The genus’ name
honors an indigenous people from the Caribbean coast region, while its species'
name pays tribute to Nobel laureate and renowned Colombian author Gabriel
GarcĂa Márquez. An international research team,
led by Carlos Perafán, University of the Republic, Uruguay, made the discovery.
Here are
the conclusions of the researchers
Conclusions
Kankuamo gen. n. fits the diagnostic
characters of Theraphosinae, but also shows a very divergent palpal bulb
morphology and the presence of a new abdominal urticating setae type. These
setae are unique, and here are proposed to be the only contact released
urticating setae yet known within the Theraphosinae, although this release
mechanism was previously well known only for Aviculariinae. Also, the
supernumerary keels on the male palpal bulb clearly distinguish it from all
known theraphosid species. Kankuamo gen. n. was resolved as
the sister group of Metriopelma on our preferred phylogeny of Theraphosinae.
Details
of the research appears in the open access journal ZooKeys
Sunday, July 03, 2016
Following the Wild Bees: The Craft and Science of Bee Hunting
I just finished reading this delightful book by Thomas D. Seeley. Thomas
Seeley, a world authority on honey bees, vividly describes the history and
science of wild bees. Seeley
weaves a beautiful pattern of informative discussions of the biology of wild
honey bees with delightful historical anecdotes, personal insights, and
beautiful photos. The icing on the
cake is quotes of historical accounts by Henry David Thoreau in the book. It is depiction of scientific natural history at
its very best.
Simon Ings in his review in New Scientist writes “"Anyone deeply interested in
natural history will ignore this mad little volume at their peril."
Edward O. Wilson writes “Following the Wild Bees is
scientific natural history at its very best: original, authentic, and exciting.
It is at the same time science, science history, adventure, sport, and treasure
hunting."
Thomas D. Seeley is the Horace White Professor in Biology at
Cornell University. He is the author of Honeybee Democracy and Honeybee
Ecology (both Princeton) and The Wisdom of the Hive. He
lives in Ithaca, New York
Following the Wild Bees:The Craft and Science of Bee
Hunting
Thomas D. Seeley
Thomas D. Seeley
Publisher: Princeton University Press
Hardcover
| 2016 | $22.95 | £17.95 | ISBN: 9780691170268
184 pp. | 5 1/2 x 8 1/2 | 50 color illus.
eBook | ISBN: 9781400880331
184 pp. | 5 1/2 x 8 1/2 | 50 color illus.
eBook | ISBN: 9781400880331
Sunday, June 26, 2016
Photovoltaic cells inspired by flowers
Scientists of KIT (Karlsruhe Institute of Technology) and
ZSW (Center for Solar Energy and Hydrogen Research Baden-WĂĽrttemberg) have increased
the efficiency of solar cells by replicating the structure of rose petals. They
reproduced the epidermal cells of rose petals that have particularly good
antireflection properties and integrated the transparent replicas into an
organic solar cell. This has resulted in broad absorption spectrum and a
high incidence angle tolerance. These
properties are particularly pronounced in rose petals. In order to exactly
replicate the structure of these epidermal cells over a larger area, the
scientists transferred it to a mold made of polydimethylsiloxane, a
silicon-based polymer, pressed the resulting negative structure into optical
glue which was finally left to cure under UV light. The scientists then integrated the transparent replica of the
rose petal epidermis into an organic solar cell.
Details appear in the latest issue of journal Advanced
Optical Materials
Saturday, June 25, 2016
More systematic use of genome-wide DNA for the detection of cryptic species needed
Scientists
from WCS (Wildlife Conservation Society) and the National University of Singapore
(NUS) have made a discovery that could throw out of kilter the significance of
traditional criteria used for species classification.
The
scientists were able to uncover an unusual case of cryptic speciation in the
Streak-eared Bulbul [Pycnonotus blanfordi],
a bird widespread throughout South-east Asian countries. Cryptic
speciation produces closely related sister species that are very similar in
appearance It is only genetic and/or bioacoustics inquiries that reveal
species-level differences. Traditionally, the bird
identification depended on shape and plumage color to classify bird species. Vocalizations
have also been recently added.
After
careful examination, two described subspecies of Streak-eared Bulbul [Pycnonotus blanfordi] resident in
Myanmar [P. b. blanfordi] and
Thailand/Indochina [P. b. conradi] the scientists discovered that they exhibit
deep genome-wide differentiation indicating they are two separate species. They
identified a surprising genetic divergence dating back as far as the early
Pleistocene. The researchers advocate more systematic use of genome-wide DNA
for the detection of cryptic species.
Details appear in the latest issue of journal, Molecular
Phylogenetics and Evolution.
Friday, June 24, 2016
Good bacteria: The key to coral reef survival
Dr.
Tracy Ainsworth from the ARC Centre of Excellence for Coral Reef Studies at
James Cook University who led a comprehensive research on coral reefs says good
bacteria could be the key to keeping coral healthy.
DR Tracy
adds "Healthy corals interact with complex communities of beneficial
microbes or 'good bacteria’. It is very likely that these microorganisms play a
pivotal role in the capacity of coral to recover from bouts of bleaching caused
by rising temperatures."
Says
co-author Dr. Ruth Gates from Hawai'i Institute of Marine Biology, University
of Hawai'"Facilitating coral survival and promoting coral recovery are
growing areas of research for coral reef scientists. To do this we need to
explore and understand the bacteria that help keep corals and coral reefs
healthy. We know that lasting changes to the community of beneficial bacteria
affects important aspects of the function of host organisms such as humans or
corals, including their ability to withstand further stress. Corals rely on
good bacteria but crucially we don't yet understand these microbes well enough
to know how they influence coral survival."
Details
have been published in the latest issue of journal Science.
Wednesday, June 22, 2016
Turning most commonly used synthetic plastic in to fuel
Researchers
from the University of California, Irvine and the Shanghai Institute of Organic
Chemistry (SIOC) in China have devised a way to turn millions of tons of plastic
garbage into liquid fuel.
The researchers
figured out how to break down the strong bonds of polyethylene, the most common
commercially available form of plastic. Current approaches are cumbersome. They
include using caustic chemicals known as radicals or heating the material to
more than 700 degrees Fahrenheit to break down the chemical bonds of the
polymers.
The researchers
degraded plastics in a milder and more efficient manner through a process known
as cross-alkane metathesis. The icing on the cake is that substances needed for
the new method are byproducts of oil refining.
Details
appear in the latest issue of journal Science Advances.
Wednesday, June 15, 2016
First recorded extinction of a mammal in the world thought to due to human-induced climate change.
Research
led by Ian Gynther from Queensland’s Department of Environment and Heritage
Protection, in partnership with the University of Queensland has come to the
conclusion that human-caused climate change appears to have driven Australia’s Great
Barrier Reef’s only endemic mammal species Bramble Cay Melomys
(Melomys rubicola) in to oblivion. Bramble
Cay melomys is only found on Bramble Cay, a small (4-6 ha) vegetated coral cay in
the far northeast of the Torres Strait. Bramble Cay
is a small vegetated sand cay surrounded by a relatively small coral reef and
is comparatively isolated from other reefs in the Torres Strait. Bramble
Cay melomys is a nocturnal rodent that shelters mostly in burrows and under
logs and debris. There is no published information
of life history of this species. It had the most isolated and restricted range
of any Australian mammal.
The
survey team laid 150 traps on the island for six nights. They could not find a
single individual. The researchers concluded the
“root cause” of the extinction was sea-level rise. As a result of rising seas,
the island was inundated on multiple occasions, killing the animals and also
destroying their habitat. 97% of the habitat was lost in
just 10 years. Vegetation cover declined from 2.2ha in 2004 to just 0.065ha in
2014. Natural causes were compounded by the impacts from anthropogenic climate
change-driven sea-level rise. Around the Torres Strait, sea level appears to
have risen at almost twice the global average rate between 1993 and 2014. The researchers
say melomys was driven to extinction due “solely (or primarily) to
anthropogenic climate change”.
Citation:
Department of the Environment (2016). Melomys rubicola in
Species Profile and Threats Database, Department of the Environment, Canberra.
Tuesday, June 14, 2016
World Wildlife Crime Report
I just
read the world wildlife crime report prepared by UNODC (United Nations Office
on Drugs and Crime), with data provided by partner organizations under the
International Consortium on Combating Wildlife Crime (ICCWC), including the
Secretariat of the Convention on International Trade in Endangered Species of
Wild Fauna and Flora (CITES) and the World Customs Organization (WCO).
One of
the main messages the new report aims to convey is that wildlife and forest
crime is not limited to certain countries or regions, but is a truly global
phenomenon. The report represents the first global assessment of its kind. Through
in-depth analysis of trade sectors, markets and representative case studies,
the World Wildlife Crime Report sheds light on seven specific areas which best
illustrate the scale of wildlife and forest crime: seafood; pets, zoos and
breeding; food, medicine and tonics; art, décor and jewellery; cosmetics and
perfume; fashion; and furniture. The report looks to provide an insight into
the crime and the great lengths to which traffickers go to exploit loopholes in
the international controls. By doing so, several significant gaps in this area
are highlighted, including informational, legislative and operational factors
which, if addressed, could dramatically reduce the negative impact trafficking
is having on wildlife.
UNODC
Executive Director, Yury Fedotov, says "The desperate plight of iconic
species at the hands of poachers has deservedly captured the world's attention
and none too soon. Animals like the tiger, feared and revered throughout human
history, are now hanging on by a thread, their dwindling numbers spread across
a range of states that are struggling to protect them. African elephants and
rhinos are under constant pressure. But the threat of wildlife crime does not
stop with these majestic animals. One of the critical messages to emerge from
this research is that wildlife and forest crime is not limited to certain
countries or regions. It is not a trade involving exotic goods from foreign
lands being shipped to faraway markets".
This is
what CITES Secretary-General, John E. Scanlon says "This comprehensive
global report is rooted in the best data and case studies available, is backed
by in-depth analysis, and demonstrates a heightened sense of rigor in the way
in which we report on wildlife crime. Future reports will benefit from more and
better data, with CITES Parties to submit annual illegal trade reports starting
in 2017. Hundreds of additional species of animals and plants, including 250
tree species, are being considered for global protection under CITES at its
17th meeting of the Conference of the Parties - to be held in Johannesburg
later this year. The World Wildlife Crime Report shows the extensive
involvement of transnational organized criminal groups in these highly
destructive crimes and the pervasive impact of corruption, demonstrating that
combating wildlife crime warrants even greater attention and resources at all
levels. We sincerely thank the Executive Director and staff of UNODC for
leading this tremendous effort, together with our other ICCWC partners,
INTERPOL, the World Bank and the World Customs Organization"
Read the
full report HERE
Sunday, June 12, 2016
The significant role played by grandmas in Asian elephant groups
Mirkka
Lahdenperä, Khyne U. Mar and Virpi Lummaa, researchers from University of Turku
in Finland have come to the conclusion that to ensure the survival of the
calves and breeding success for their daughters, the grandmothers plays a significant
role in Asian elephants.
Asian elephants
have a lifespan of up to 80 years and live in highly social family groups
containing many generations of females and their calves. During the last few generations, the
number of Asian elephants has dropped by half and only 38,500-52,500 elephants
currently remain in the wild. The
research group studied the unique records maintained for a century on Asian
elephants used in timber extraction in Myanmar.
Dr.
Mirkka Lahdenperä, the lead author of the study has this to say We found that
calves of young elephant mothers under 20 years of age had eight times lower
mortality risk if the grandmother resided in the same location compared to
calves whose grandmother was not present,"
Resident
grandmothers also decreased their daughters' inter-birth intervals by one year.
This has the effect of having more grandcalves. Grandmothers with own recent
calves were as beneficial to their daughter's calves as grandmothers who had
already stopped reproducing.
Professor
Virpi Lummaa adds "Grandmothers may be particularly important for the
reproductive success of their inexperienced adult daughters. Older daughters,
on the other hand, would have already gained enough experience in calf rearing
to succeed without the help of their mother,"
Calf
mortality is very high in zoos, as up to 50% of the calves die during their first
years. In addition, problems with reproduction are common.
Professor
Lummaa suggests "Experienced grandmothers might be in a pivotal role in
increasing the survival prospects of calves as well as female birth rates in
zoos. Conservationists and captive population managers could potentially boost
the elephant population by simply starting to keep the grandmothers with their
offspring, similarly as would be the case in the wild in elephant
families,"
Details
appear in the latest issue of journal Scientific Reports
Friday, June 10, 2016
Stunning aerial view of the rarely seen Bryde's whale captured by drone
This magnificent view of the rarely seen Bryde's whale was
captured by a team of researchers from the Auckland University of Technology. A
female and her calf are seen swimming off the coast of New Zealand, feeding on
krill, plankton and small fish.
Bryde's whales are critically endangered in New Zealand and
are listed as "data deficient" by the IUCN. Bryde’s whale is named
after Johan Bryde, who helped construct the first South African whaling factory
in the early 1900s.
Thursday, June 09, 2016
The words pristine-landscape is a misnomer now
Oxford researchers say Pristine' landscapes simply do not exist anywhere in the world today. An exhaustive review of archaeological data by them from the last 30 years provides details of how the world's landscapes have been shaped by repeated human activity over many thousands of years. The researchers identify four major phases when humans shaped the world around them with broad effects on natural ecosystems: global human expansion during the Late Pleistocene; the Neolithic spread of agriculture; the era of humans colonising islands; and the emergence of early urbanised societies and trade.
The researchers draw on new datasets using ancient DNA, stable isotopes, and microfossils, as well as the application of new statistical and computational methods to arrive at their conclusions. They affirm that we need to be more pragmatic in our conservation efforts rather than aiming for impossible 'natural' states.
Lead author Dr Nicole Boivin, from the School of Archaeology at the University of Oxford, and Max Planck Institute for the Science of Human History, says: 'Archaeological evidence is critical to identifying and understanding the deep history of human effects. If we want to improve our understanding of how we manage our environment and conserve species today, maybe we have to shift our perspective, by thinking more about how we safeguard clean air and fresh water for future generations and rather less about returning planet Earth to its original condition.'
Details appear in the latest issue of journal, Proceedings of the National Academy of Sciences (PNAS)
Tuesday, June 07, 2016
The ultimate water collection toolkit of a moss
Researchers
Zhao Pan, William G. Pitt, Yuanming
Zhang, Nan Wu, Ye Tao and Tadd T. Truscott from the Department of Mechanical
and Aerospace Engineering, Utah State University have discovered that moss
Syntrichia caninervis has the
ultimate water collection toolkit. The moss uses its leaves in ingeneous ways to
collect moisture.
The researchers show that the unique multiscale
structures of the hair of moss are equipped to collect and transport water in
four modes: nucleation of water droplets and films on the leaf hair from humid
atmospheres; collection of fog droplets on leaf hairs; collection of splash
water from raindrops; and transportation of the acquired water to the leaf
itself. Fluid nucleation is accomplished in nanostructures, whereas fog
droplets are gathered in areas where a high density of small barbs are present
and then quickly transported to the leaf at the base of the hair. Their observations
reveal nature's optimization of water collection by coupling relevant
multiscale physical plant structures with multiscale sources of water.
The key
to the plant's success is its small leaf hair point, or awn. These 0.5-2
mm-long hair-like structures at the tip of each leaf function like a Swiss Army
knife in their ability to collect water from a variety of size scales. Whether
the plant gets buckets of rain or only the occasional passing fog, the awn of
S. caninervis can exploit any available water resource using four specialized
tools.
Each awn
is covered in nano- and micro-scale grooves where water vapor will readily
condense. The grooves are just the right size and shape to condense water
molecules directly from moist air and to catch microscopic fog droplets. At a
larger scale, each awn also features elongated barbs that serve as collection
depots where condensed or collected water forms small droplets. When large
enough, the droplets move along the length of the awn toward the leaf --
sometimes at impressive speeds.
This
process of water collection, droplet formation, and rapid transportation to the
leaf is a critical function of the awns required to keep this moss alive. S.
caninervis is unique because its leaf surfaces must be wet for
photosynthesis to occur, and its root-like structures (rhizoids) do not collect
water from the soil.
The researchers
add "There are several exciting angles to this research. For example,
there are processes in industry where we need to extract moisture from a humid
environment. It might be possible to create a man-made version of the nano- and
micro-scale grooves we see in the awns and use that in a manufacturing setting."
Another
attraction is the plant's remarkable anti-splash properties. For several years researchers
have been exploring methods to reduce splashing in multiple settings, including
the common urinal. The concept is no trivial topic for the Splash Lab team.
They've demonstrated that urinal splash-back is a legitimate concern when it
comes to public hygiene and facility maintenance costs. The way clusters of S.
caninervis harness water droplets inspired a newly designed urinal
splash pad being developed by Truscott's Team.
Details of the research appears in the latest issue of journal Nature Plants
Monday, June 06, 2016
Nature apps - The potential is not fully exploited
Nature
apps have the power to harness cloud computing, social networking,
and crowdsourcing. I believe we have not fully leveraged
the potential of Nature apps for conservation. Jepson and Ladle, the
authors of the paper Nature apps: Waiting for the revolution say they have the potential to
transform how humans interact with nature, cause a step change in the quantity
and resolution of biodiversity data, democratize access to environmental
knowledge, and reinvigorate ways of enjoying nature. They conducted an
automated search of the Google Play Store using 96 nature-related terms. This
returned data on 36304 apps, of which 6301 were nature-themed. They found that
few of these fully exploit the full range of capabilities inherent in the
technology and/or have successfully captured the public imagination. The researchers
emphasize that such breakthroughs will only be achieved by increasing the
frequency and quality of collaboration between environmental scientists,
information engineers, computer scientists, and interested public. My own experience
with the Nilgiri tahr app that I developed, fully subscribe to the views of the
researchers.
Sunday, June 05, 2016
Avian scavenger crisis - The urgent need to look in to the trophic cascades, and loss of critical ecosystem functions
The
avian scavenger crisis: Looming extinctions, trophic cascades, and loss of
critical ecosystem functions
Evan R.
Buechley and Çağan H. Şekercioğlu
Biological
Conservation
Volume
198, June 2016, Pages 220–228
Vultures
are the most threatened group of birds, many of the species on the precipice of
extinction. Of the 22 vulture species,
nine are critically endangered, three are endangered, four are near threatened,
and six are least concern. Diet specialization and taxonomy are leading
extinction risk predictors. Dietary toxins are main threat for 59% of all avian
scavengers, 88% of vultures. Vulture declines is expected to cause trophic cascades and disease
outbreaks. Currently, 73% of vulture species are extinction-prone (near
threatened, vulnerable, endangered, critically endangered and extinct) and 77%
have declining populations. Against this backdrop only 13% of avian facultative scavenger
species are extinction-prone and 70% have stable or increasing populations. As
vultures decline, populations of many facultative scavengers are growing. This
causes trophic cascades from increased predation, competition, and invasion. Vultures'
highly specialized digestive systems efficiently eradicate diseases when
consuming carrion, whereas facultative scavengers are more susceptible to
contract and transmit diseases among themselves and to humans. The researchers urge
immediate action, particularly by regulating lethal dietary toxins, to prevent
the extinction of vultures and loss of respective ecosystem services.
Saturday, June 04, 2016
Owls are at disadvantage in an increasingly noisy world
Latest research by Boise state university has come to the conclusion that external noise can impact hunting abilities of owls. This is the first research on the impact of sound on owls. Owls experienced 8 percent drop in hunting success per decibel increase in noise. The authors suggest that noise can be mitigated and this will make ecosystems more resilient. As resource extraction expands in to otherwise quiet areas associated noise has the potential to degrade habitat for acoustically specialised animals.
Details of the research appear in the latest issue of journal Biological Conservation.
Details of the research appear in the latest issue of journal Biological Conservation.
Friday, June 03, 2016
Understanding factors that promote or limit the occurrence of tigers in working landscapes
Conserving
tigers in working landscapes
Pranav
Chanchani,Barry R. Noon,Larissa L. Bailey and Rekha A. Warrier
Conservation
Biology,Volume 30, Issue 3, pages 649–660, June
2016
Here is a good paper that deals with the
complexities of conserving tigers in working landscapes. This is an abstract of
the paper. Usually I make changes when posting. Here I have retained the words
of the authors as far as possible to maintain what the authors intend.
Tiger (Panthera
tigris) conservation efforts in Asia are focused on protected areas
embedded in human-dominated landscapes. A system of protected areas is an
effective conservation strategy for many endangered species if the network is
large enough to support stable metapopulations. The long-term conservation of
tigers requires that the species be able to meet some of its life-history needs
beyond the boundaries of small protected areas and within the working
landscape, including multiple-use forests with logging and high human use.
However, understanding of factors that promote or limit the occurrence of
tigers in working landscapes is incomplete. The researchrs assessed the
relative influence of protection status, prey occurrence, extent of grasslands,
intensity of human use, and patch connectivity on tiger occurrence in the 5400
km2 Central Terai Landscape of India, adjacent to Nepal. Two
observer teams independently surveyed 1009 km of forest trails and water
courses distributed across 60 166-km2 cells. In each cell, the
teams recorded detection of tiger signs along evenly spaced trail segments. The
researchers used occupancy models that permitted multiscale analysis of
spatially correlated data to estimate cell-scale occupancy and segment-scale
habitat use by tigers as a function of management and environmental covariates.
Prey availability and habitat quality, rather than protected-area designation,
influenced tiger occupancy. Tiger occupancy was low in some protected areas in
India that were connected to extensive areas of tiger habitat in Nepal, which
brings into question the efficacy of current protection and management
strategies in both India and Nepal. At a finer spatial scale, tiger habitat use
was high in trail segments associated with abundant prey and large grasslands,
but it declined as human and livestock use increased. The researchers speculate
that riparian grasslands may provide tigers with critical refugia from human
activity in the daytime and thereby promote tiger occurrence in some
multiple-use forests. Restrictions on human-use in high-quality tiger habitat
in multiple-use forests may complement existing protected areas and
collectively promote the persistence of tiger populations in working
landscapes.
Wednesday, June 01, 2016
In grassland areas prescribed grassland burning is a must to maintain ecosystem says Kansas State University researchers
Kansas
State University researchers advise an increase in prescribed grassland
burning to maintain ecosystem. They have found a three-year absence of fire is
the tipping point for the tallgrass prairie ecosystem and advise an increase in
burning. The study applied 40 years of
data collected at Konza Prairie Biological Station, a tallgrass prairie jointly
owned by Kansas State University and The Nature Conservancy and satellite fire
maps of the Flint Hills from 2000 to 2010.
Managed
by the university's Division of Biology, Konza Prairie has more than 50
sections of land called watersheds -- because they are partitioned based on
water flow -- that are burned at varying frequencies -- from annually to every
20 years -- since the land was donated in 1971. The areas of the station with
one- and two-year fire intervals have minimal large shrubs compared to a nearby
watershed that is burned at three-and-a-half-year intervals and that has lost
40 percent of its area to shrub expansion.
"In
this area, if we completely exclude fire, the landscape can go from tallgrass
prairie to a cedar forest in as little as 30-40 years," said John Briggs,
director of Konza Prairie and one of the authors of the study. "Once it
gets to that point, we are not confident that fire alone is going to bring that
back."
Briggs added
“There is always a conflict to burning," "Most people think that the
remaining tallgrass prairie should be a fenced-off preserve. They think that it
will take care of itself, but this system is fire derived and historically fire
maintained. Aside from the sustainable and ecological aspects, it is critical
to people's livelihoods and necessary to ranching communities."
Details appear
in the latest issue of journal Rangeland Ecology and Management
Tuesday, May 31, 2016
Cracking the mystery of bird egg colour
The
vibrant colors of many birds’ eggs, particularly those that are blue to
blue-green have eluded evolutionary functional explanation. It was with great fascination
that I read this paper titled Shedding
Light on Bird Egg Color: Pigment as Parasol and the Dark Car Effect authored by
David C. Lahti and Daniel R, which appeared in The
American Naturalist.
Researchers
David C. Lahti and Daniel R. Ardia propose that egg
pigmentation mediates a trade-off between two routes by which solar radiation
can harm bird embryos: transmittance through the eggshell and overheating
through absorbance. They quantitatively
tested four components of this hypothesis on variably colored eggs of the
village weaverbird (Ploceus cucullatus) in a controlled light
environment: (1) damaging ultraviolet radiation can transmit through bird
eggshells, (2) infrared radiation at natural intensities can heat the interior
of eggs, (3) more intense egg coloration decreases light transmittance
(“pigment as parasol”), and (4) more intense egg coloration increases
absorbance of light by the eggshell and heats the egg interior (“dark car
effect”). Results
support all of these predictions.
The scientists conclude that in sunlit nesting
environments, less pigmentation will increase the detrimental effect of
transmittance, but more pigmentation will increase the detrimental effect of
absorbance. The optimal pigmentation level for a bird egg in a given light
environment, all other things being equal, will depend on the balance between
light transmittance and absorbance in relation to embryo fitness.
Saturday, May 28, 2016
Sharks of the same species can have different personalities- An interesting study
A new
study by E. E. Byrnes and C. Brown has come out with the finding that Sharks
have individual personalities.
The
authors write “The
study examined interindividual personality differences between Port Jackson
sharks Heterodontus portusjacksoni, utilizing a standard boldness assay.
The correlation between differences in individual boldness and stress
reactivity was also examined, exploring indications of individual coping
styles. Heterodontus portusjacksoni demonstrated highly
repeatable individual differences in boldness and stress reactivity. Individual
boldness scores were highly repeatable across four trials such that individuals
that were the fastest to emerge in the first trial were also the fastest to emerge
in subsequent trials. Additionally, individuals that were the most reactive to
a handling stressor in the first trial were also the most reactive in a second
trial. The strong link between boldness and stress response commonly found in
teleosts was also evident in this study, providing evidence of
proactive-reactive coping styles in H. portusjacksoni. These
results demonstrate the presence of individual personality differences in
sharks for the first time. Understanding how personality influences variation
in elasmobranch behaviour such as prey choice, habitat use and activity levels
is critical to better managing these top predators which play important
ecological roles in marine ecosystems.”
Details
appear in the latest issue of journal Journal of Fish Biology
Friday, May 27, 2016
Are you a young blue solution provider? Here is a golden opportunity to promote the projects of young people
The
International Union for Conservation of Nature (IUCN) World Commission on
Protected Areas (WCPA) Marine Young Professionals Task Force have partnered
with the Blue Solutions project, Mission Blue, #OceanOptimism and TerraMar on a
new initiative to highlight and promote the projects of young people working
for marine conservation around the world.
The
competition partners invite youth and young professionals actively working on
innovative and creative marine conservation initiatives from around the world
to take part in this competition.
Are
you a young blue solution provider?
Do you
have an innovative and creative approach or process that successfully address
marine conservation issues that you are implementing with your own organization
and you are not older than 35 years? Then become a young professional blue
solution provider by submitting this
form by 31st May.
Criteria
Emerging
blue solutions need to:
- Come from a young marine
conservationist not older than 35 years
- Be innovative and creative,
having solved a tricky challenge in a new, “out-of-the-box” manner
- Respond to challenges to
sustainable development and human wellbeing in the marine and coastal
realm and contribute to maintaining or improving the status/health of
biodiversity and ecosystems
- Be effective and have been
implemented with a demonstrated positive impact and,
- Have the potential for
replication or upscaling in other geographic, social or sectorial
contexts.
All
solutions submitted will be reviewed by a judging panel, consisting of experts
of all ages from a broad range of organizations and regions active in the
sustainable management and conservation of marine and coastal ecosystems. This
panel will review your solution regarding aspects of innovation, creativity,
scalability and impact, and select winners focusing on a balance between
age, gender and regional representation.
What
is an emerging blue solution?
Blue
solutions are specific, applied examples of successful processes or approaches
that address challenges related to the conservation, sustainable use and
restoration of marine and coastal biodiversity with a demonstrated impact.
What
are the benefits & prizes?
Winners’
solutions will be showcased through high-profile international marine platforms
including the 2016 IUCN World Conservation Congress in Hawai’i. Additionally, a
series of prizes and benefits are available.
High-profile
international exposure –
The contestants have the opportunity for their work to be showcased on and
promoted through high-profile international marine platforms, social media
channels and networks including the “Solutions Explorer” platform, IUCN WCPA
Marine, #OceanOptimism, Mission Blue, TerraMar and CoalitionWild.
Showcased
at the 2016 IUCN World Conservation Congress – Winning entries will be showcased on a
poster at the 2016 IUCN World Conservation Congress in Hawai’i.
Networking – Submitting your solution
into the competition will link you up with a growing network of marine and
coastal practitioners and decision-makers who are part of the Blue Solutions
network.
Sharing – Bring in your experiences
and innovations as a young professional in the field of marine and coastal biodiversity
management and conservation, and allow others to learn from, and build on your
successes, thus accelerating action towards healthier oceans and coasts.
Self-learning – In the process of
documenting your solution, you are able to identify and highlight the
innovative aspects of your work.
Prizes – All contestant winners
will be presented with a series of prizes. More to be announced at a later
date!
How
to enter the challenge?
Complete
the application form available on IUCNs official MPA
Blog or follow the direct link to the application form here and
then keep your fingers crossed that your solution will be selected!
Tuesday, May 24, 2016
Best practice for minimizing drone disturbance to wildlife in biological field research
Researchers
Jarrod C. Hodgson and Lian Pin Koh writing in the Cell Press journal Current
Biology on May 23 say that steps should be taken to ensure that UAV
operations are not causing undue stress to animals.
Hodgson
and Koh offer the following recommendations:
- In cases where the evidence
is lacking, UAV users should consult with appropriate experts and proceed
with an abundance of caution. The researchers also say that further study
on the impact of UAVs is needed.
- UAV users should seek
approval when appropriate and explain the anticipated benefit of using UAV
technology in their situation.
- Suitably trained UAV
operators should comply with all relevant civil aviation rules, which may
include restrictions on flying beyond visual line of sight, above a
defined altitude, at night, and near people or in the vicinity of
important infrastructure and prohibited areas.
- UAVs should be chosen or
adapted to minimize disruption, for example, by disguising UAVs as other
non-threatening animals.
- UAVs should be launched and
recovered from a distance, and a reasonable distance from animals should
be maintained at all times during UAV flights.
- Behavioral and physiological
stress responses should be measured whenever possible, and UAV flights
should be aborted if excessive disturbance is found.
- UAV specifications and
flight practices should be detailed accurately and shared in full in
published studies, along with any animal responses, accidents, or
incidents.
The researchers
signs off saying “Promoting the awareness, development and uptake of a code of
best practice in the use of UAVs will improve their suitability as a low impact
ecological survey tool. We consider this code to be a first and guiding step in
the development of species-specific protocols that mitigate or alleviate potential
UAV disturbance to wildlife.”
Monday, May 23, 2016
A suggestion to use perceptions as evidence in conservation practice
Using perceptions as evidence to improve
conservation and environmental management
Nathan James Bennett
Conservation Biology, Volume 30, Issue 3, pages
582–592, June 2016
The
researcher start off saying that as part of a broader move toward adaptive
management and evidence-based conservation, the conservation community is
increasingly focusing on the monitoring and evaluation of management,
governance, ecological, and social considerations .Evidence is any information
that can be used to come to a conclusion and support a judgement or, in this
case, to make decisions that will improve conservation policies, actions, and
outcomes. Perceptions are one type of information that is often dismissed as
anecdotal by those arguing for evidence-based conservation.
In this paper the researcher points out the
contributions of research on perceptions of conservation to improve adaptive
and evidence-based conservation. The researcher goes on to add that studies of
the perceptions of local people can provide important insights into
observations, understandings and interpretations of the social impacts, and
ecological outcomes of conservation; the legitimacy of conservation governance;
and the social acceptability of environmental management. The researcher goes
on to add that perceptions of these factors contribute to positive or negative
local evaluations of conservation initiatives. He says it is positive
perceptions, not just objective scientific evidence of effectiveness that
ultimately ensure the support of local constituents thus enabling the long-term
success of conservation. The researcher signs off saying research on
perceptions can inform courses of action to improve conservation and governance
at scales ranging from individual initiatives to national and international
policies. Better incorporation of evidence from across the social and natural
sciences and integration of a plurality of methods into monitoring and
evaluation will provide a more complete picture on which to base conservation
decisions and environmental management.
Friday, May 20, 2016
IUCN World Conservation Congress 2016 – A Gentle Reminder
Early-bird
registration ends May 31st
11 days left to take advantage of early bird offers.
Register
by May 31st to take advantage of reduced rates
Tuesday, May 17, 2016
6th WORLD CONGRESS ON MOUNTAIN UNGULATES - Third announcement
6th WORLD CONGRESS ON MOUNTAIN
UNGULATES and
5th INTERNATIONAL SYMPOSIUM ON MOUFLON
5th INTERNATIONAL SYMPOSIUM ON MOUFLON
Organized by the Ministry of Interior with the
cooperation of Frederick University and the Caprinae Specialist Group of the
Species Survival Commission of IUCN
AUGUST
28 - SEPTEMBER 1, 2016, Nicosia, Cyprus
Message
from Dr. Eleftherios Hadjisterkotis
1. Participation fee is free for all the
scientists or students who are going to submit an abstract for an oral or
poster presentation until the 31st of June 2016,
according to the instructions in the web site: www.mountainungulates.gov.cy.
2.
The manager of the Nicosia City Centre Hotel informed us that after the 31st of
June the hotel is closing for renovations.
The new venue hotel is Cleopatra, situated in the most central location in the city Centre of Nicosia and 6 minutes’ walk from the old part of the city. Cleopatra is within walking distance of the main business, nightlife venues, cafes and shopping centers, government offices, museums, ancient churches, medieval building and galleries, with superb accommodations and great service in a relaxing environment. http://www.mountainungulates.gov.cy/moa/symposium/symposium.nsf/enfsi05_en/enfsi05_en?OpenDocument
The new venue hotel is Cleopatra, situated in the most central location in the city Centre of Nicosia and 6 minutes’ walk from the old part of the city. Cleopatra is within walking distance of the main business, nightlife venues, cafes and shopping centers, government offices, museums, ancient churches, medieval building and galleries, with superb accommodations and great service in a relaxing environment. http://www.mountainungulates.gov.cy/moa/symposium/symposium.nsf/enfsi05_en/enfsi05_en?OpenDocument
Dr.
Eleftherios Hadjisterkotis
Environment
Officer
Ministry
of the Interior, Nicosia Cyprus
On
behalf of the Organizing and the Scientific Committee
Subscribe to:
Posts (Atom)