Another challenge is to avoid being so distracted by crisis situations that we fail to pay attention to ‘non-crises’ – by that I mean populations that appear to be doing fine but rapidly and unexpectedly prove otherwise.
Sunday, April 29, 2012
Cetacean Conservation-challenges and solutions
Another challenge is to avoid being so distracted by crisis situations that we fail to pay attention to ‘non-crises’ – by that I mean populations that appear to be doing fine but rapidly and unexpectedly prove otherwise.
Saturday, April 28, 2012
Save The Frogs Day -28th April
Save The Frogs Day is the world's largest day of amphibian education and conservation action. Events are currently planned in Australia, Bangladesh, Belize, Bhutan, Brazil, Bolivia, Canada, Colombia, Czech Republic, Dominica, Ecuador, Germany, Ghana, Hungary, India, Italy, Kenya, Liberia, Madagascar, Malaysia, Mauritius, Mexico, New Zealand, Pakistan, Panama, Peru, Phillipines, Portugal, Romania, Sierra Leone, South Africa, Spain, Sweden, Taiwan, Turkey, Uganda, Ukraine and the United States. Help us reach our 2012 goal of 200 events in 30 countries: please organize an event in your community, and ask your local schools and environmental organizations to take part as well.
Visit SAVETHEFROGS! for more information!
Why We Must SAVE THE FROGS!
Frog populations have been declining worldwide at unprecedented rates, and nearly one-third of the world’s amphibian species are threatened with extinction. Up to 200 species have completely disappeared since 1980, and this is NOT normal: amphibians naturally go extinct at a rate of only about one species every 250 years!!! Amphibian populations are faced with an onslaught of environmental problems, including pollution, infectious diseases, habitat loss, invasive species, climate change, and over-harvesting for the pet and food trades. Unless we act quickly, amphibian species will continue to disappear, resulting in irreversible consequences to the planet’s ecosystems and to humans.
Frogs are an integral part of the food web
Tadpoles keep waterways clean by feeding on algae. Adult frogs eat large quantities of insects, including disease vectors that can transmit fatal illnesses to humans (i.e. mosquitoes/malaria). Frogs also serve as an important food source to a diverse array of predators, including dragonflies, fish, snakes, birds, beetles, centipedes and even monkeys. Thus, the disappearance of frog populations disturbs an intricate food web, and results in negative impacts that cascade through the ecosystem. Photo courtesy David Dennis.
Frogs are bioindicators
Most frogs require suitable habitat in both the terrestrial and aquatic environments, and have permeable skin that can easily absorb toxic chemicals. These traits make frogs especially susceptible to environmental disturbances, and thus frogs are considered accurate indicators of environmental stress: the health of frogs is thought to be indicative of the health of the biosphere as a whole. Frogs have survived in more or less their current form for 250 million years, having survived countless ice ages, asteroid crashes, and other environmental disturbances, yet now one-third of amphibian species are on the verge of extinction. This should serve as an alarm call to humans that something is drastically wrong in the environment.
Frogs are important in medical research that benefits humans
Frogs produce a wide array of skin secretions, many of which have significant potential to improve human health through their use as pharmaceuticals. Approximately 10% of Nobel Prizes in Physiology and Medicine have resulted from investigations that used frogs. When a frog species disappears, so does any promise it holds for improving human health.
Sunday, April 22, 2012
Tuesday, April 17, 2012
NEWS: More Emperor Penguins than Previously Thought
mongabay.com
April 14, 2012
Satellite images show twice as many emperor penguins as previously thought
Map showing the locations of Emperor penguin colonies in Antarctica. Graphic courtesy of the British Antarctic Survey, whose scientists were involved in the research. Click image to enlarge.
The census technique is based on detecting penguin colonies and then counting individual birds. Colonies are located by looking for large patches of ice discolored by penguin poop or guano.
This approach turned up 44 colonies across Antarctica — including seven that hadn't been detected previously — and 595,000 birds. The emperor population had previously been thought to range between 170,000-350,000.
“The methods we used are an enormous step forward in Antarctic ecology because we can conduct research safely and efficiently with little environmental impact, and determine estimates of an entire penguin population, said co-author Michelle LaRue from the University of Minnesota in a statement. “The implications of this study are far-reaching: we now have a cost-effective way to apply our methods to other poorly-understood species in the Antarctic, to strengthen on-going field research, and to provide accurate information for international conservation efforts.”
Emperor penguins on the sea ice close to Halley Research Station. Photo courtesy of the British Antarctic Survey.
The findings are significant because they help scientists determine a baseline from which they can measure the impact of climate change on emperor penguin populations. Ecologists say many penguins may be vulnerable to shifts in prey distribution and density as well as changes in sea ice cover, which could increase mortality rates of fledgling penguins.
"Current research suggests that emperor penguin colonies will be seriously affected by climate change," said co-author Phil Trathan of the British Antarctic Survey. "An accurate continent-wide census that can be easily repeated on a regular basis will help us monitor more accurately the impacts of future change on this iconic species."
Aerial photograph of Halley Bay Emperor penguin colony. Photo courtesy of Digital Globe.
The research is published in this week's issue of PLoS ONE: An Emperor Penguin Population Estimate: The First Global, Synoptic Survey of a Species from Space.
CITATION: Fretwell PT, LaRue MA, Morin P, Kooyman GL, Wienecke B, et al. (2012) An Emperor Penguin Population Estimate: The First Global, Synoptic Survey of a Species from Space. PLoS ONE 7(4): e33751. doi:10.1371/journal.pone.0033751
Read more:http://news.mongabay.com/2012/0414-penguins_from_space.html#ixzz1sHzvezgI
Friday, March 16, 2012
National Geographic Live! Mattias Klum - Face-Off with a Lion
NatGeo Photographer Mattias Klum Talks About Going Face to Face with Lion
Monday, March 12, 2012
Tuesday, February 14, 2012
Thursday, February 9, 2012
Tarsiers have ultrasonic communication
Tuesday, February 7, 2012
New Nature Reserve Established in Peru
Read more:http://news.mongabay.com/2012/0207-hance_maijunareserve.html#ixzz1ljjtLJys
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Sunday, February 5, 2012
All in the Family, nature PORTUGAL

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Saturday, February 4, 2012
Tracking the mighty albatross - Environment Sci - Video - 3 News
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Snow Leopard Trust Featured on BBC World News!
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Friday, February 3, 2012
Grasshopper, PORTUGAL

Peneda-Gerês National Park, Portugal
July 2010
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Young Sally Lightfoot Crab, GALAPAGOS

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Thursday, February 2, 2012
Insect in a purple flower, PORTUGAL

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Wednesday, February 1, 2012
Ground-breaking research in the Amazon River
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Yellows and Browns in Gerês, Portugal

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Snow Leopards and Stem Cells
Induced pluripotency is a new approach to produce embryonic stem-like cells from somatic cells that provides a unique means to understand both pluripotency and lineage assignment. To investigate whether this technology could be applied to endangered species, where the limited availability of gametes makes production and research on embryonic stem cells difficult, we attempted generation of induced pluripotent stem (iPS) cells from snow leopard (Panthera uncia) fibroblasts by retroviral transfection with Moloney-based retroviral vectors (pMXs) encoding four factors (OCT4, SOX2, KLF4 and cMYC). This resulted in the formation of small colonies of cells, which could not be maintained beyond four passages (P4). However, addition of NANOG, to the transfection cocktail produced stable iPS cell colonies, which formed as early as D3. Colonies of cells were selected at D5 and expanded in vitro. The resulting cell line was positive for alkaline phosphatase (AP), OCT4, NANOG, and Stage-Specific embryonic Antigen-4 (SSEA-4) at P14. RT-PCR also confirmed that endogenous OCT4 and NANOG were expressed by snow leopard iPS cells from P4. All five human transgenes were transcribed at P4, but OCT4, SOX2 and NANOG transgenes were silenced as early as P14; therefore, reprogramming of the endogenous pluripotent genes had occurred. When injected into immune-deficient mice, snow leopard iPS cells formed teratomas containing tissues representative of the three germ layers. In conclusion, this was apparently the first derivation of iPS cells from the endangered snow leopard and the first report on induced pluripotency in felid species. Addition of NANOG to the reprogramming cocktail was essential for derivation of iPS lines in this felid. The iPS cells provided a unique source of pluripotent cells with utility in conservation through cryopreservation of genetics, as a source of reprogrammed donor cells for nuclear transfer or for directed differentiation to gametes in the future.
- R. Verma, M.K. Holland, P. Temple-Smith, P.J. Verma.Inducing pluripotency in somatic cells from the snow leopard (Panthera uncia), an endangered felid.Theriogenology, 2012; 77 (1): 220 DOI:10.1016/j.theriogenology.2011.09.022
- Monash University (2012, January 23). Saving the snow leopard with stem cells. ScienceDaily. Retrieved February 1, 2012, from http://www.sciencedaily.com/releases/2012/01/120123094758.htm
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Nature in Valais, Switzerland

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