Sentences with phrase «extinctions of some amphibian»

There have already been significant global declines and even the extinctions of some amphibian species due to a similar species of fungus, called Batrachochytrium dendrobatidis (Bd).

We are witnessing an extinction of amphibians and frogs at the moment.

Via:: ScienceDaily: New Report Details Historic Mass Extinction Of Amphibians; Humans Worsen Spread Of Deadly Emerging Infectious Disease (news website)

Not exact matches

Amphibians are the most threatened vertebrates in the world, with over 40 % at risk of extinction.

Worldwide, as water temperatures rise and ponds dry, exposing amphibians and their eggs to ultraviolet radiation and disease, a third of those species are threatened with extinction.

The Darwin's frog (Rhinoderma darwinii) is the latest amphibian species to face extinction due to the global chytridiomycosis pandemic, according to an international study published today in the journal Proceedings of the Royal Society of London B.

Faced with a variety of threats, from disease to habitat loss, about half of the world's roughly 7,000 species of amphibian are threatened with extinction — and more than 250 of those species haven't been seen since the turn of this century.

Unusually for an infectious disease even at very low rates of infection, and in the absence of the dramatic die - offs witnessed in other amphibian populations impacted by this disease, infected populations of Darwin's frogs are destined for extinction.»

37 %: freshwater fish species threatened with extinction (amphibians: 23 %) in Western and Central Europe and western parts of Eastern Europe

But many of those won't be around much longer; one out of every eight known bird species, one in four mammal species, and one in three amphibian species are at risk for extinction, according to the World Conservation Union (IUCN), which maintains the Red List, a catalog of the world's species classified according to their risk of extinction.

B. dendrobatidis infects more than 520 amphibian species around the world, has caused steep declines in populations of frogs and salamanders, and has driven some species into extinction.

«We show that even if deforestation had completely halted in 2010, time lags ensured there would still be a carbon emissions debt equivalent to five to ten years of global deforestation and an extinction debt of more than 140 bird, mammal, and amphibian forest - specific species, which, if paid, would increase the number of 20th century extinctions in these groups by 120 percent,» says Isabel Rosa (@isamdr86) of the Imperial College of London.

That's the stark message from the first global survey of amphibians, which has found they are under far greater threat of extinction than birds or mammals.

«Twenty - five frogs added to the amphibian fauna of Mount Oku, Cameroon: Staggering 44 % of the amphibians in the mountain are threatened with extinction, researchers find.»

The decline of amphibian populations, particularly frogs, is thought to suggest that Earth is currently undergoing a sixth mass extinction event.

Earth is in the midst of its sixth mass extinction: Somewhere between 30 and 159 species disappear every day, thanks largely to humans, and more than 300 types of mammals, birds, reptiles, and amphibians have vanished since 1500.

Not until 201 million years ago did dinosaurs begin to dominate worldwide, say Olsen and Irmis — after a mass extinction, caused by volcanic eruptions, wiped out many of their cold - blooded reptile and amphibian competitors.

«Bd is the first emerging disease shown to cause the decline or extinction of scores of populations of amphibians not otherwise threatened around the world,» Goldberg said.

Nearly one - third of the world's amphibians — more than 1,800 species of frogs, toads, salamanders and newts — are threatened with extinction or already extinct.

Up to 83 % of birds, 66 % of amphibians and 70 % of corals that were identified as highly vulnerable to the impacts of climate change are not currently considered threatened with extinction on The IUCN Red List of Threatened Species.

The authors of the new study found that 85 percent of world's 4,118 threatened mammals, birds, and amphibian species are not adequately protected in existing national parks, and are therefore vulnerable to extinction in the near term.

The move is intended to keep out the deadly fungus Batrachochytrium salamandrivorans, or Bsal, sister species of the Bd fungus that has caused the extinction or decline of countless amphibian species.

When Frank Pasmans and An Martel, veterinarians here at Ghent University, heard about the enigmatic deaths, they recalled extinctions caused by Batrachochytrium dendrobatidis (Bd), a highly lethal fungus that infects more than 700 species of amphibian.

The IUCN analysis also notes that between one - third and one - half of bird, coral and amphibian species not currently threatened by extinction are «susceptible» to global warming.

As I reported in a feature story in Scientific American last December, some fungi have been behaving badly of late, attacking bats, plants, amphibians, reptiles, and people with gusto, driving many species to extinction and others to the brink.

Worldwide, Bd has been implicated in the decline or extinction of at least 200 amphibian species, and some biologists peg it as the driving force behind the largest disease - caused loss of biodiversity ever recorded.

A new study of amphibians argues that growing smaller to take up less resources won't always help a species avoid extinction in the face of a shrinking habitat, climate change, and disease.

The researchers cited an estimate by the International Union for Conservation of Nature that more than 41 percent of all amphibian species and 26 percent of all mammals are at high risk of extinction.

In assessing extinction intensities, scientists often talk about the number of species going extinct within a certain genus, family, class, and so on, as I did above for species of amphibians, reptiles, birds, and mammals.

There are multiple causes of the detailed processes involved in global amphibian declines and extinctions [107]--[108], but global warming is a key contributor and portends a planetary - scale mass extinction in the making unless action is taken to stabilize climate while also fighting biodiversity's other threats [109].

Providing sustainability to the Jambatu Center and ex situ conservation program of amphibians in risk of extinction.

Another fungus has caused extinction of more than 120 amphibian species in little over a decade.

In 2009, the Panama Amphibian Rescue and Conservation Project (PARC — www.amphibianrescue.org) project was established to safeguard Panamanian amphibians at risk of extinction, such as the Golden Frog.

By some scientific estimates, up to 40 percent of the world's 7,000 or so amphibian species are at risk of extinction in coming decades.

The catastrophic decline and extinction of our planet's amphibians, some believe, is due to a virulent fungus spreading around the globe.

Thirty per cent of amphibians, 23 % of mammals and 12 % of birds are under threat of extinction, while one in 10 of the world's major rivers runs dry every year before it reaches the sea.

Another case in point is the overstatement of findings of amphibian extinctions driven by global warming in a National Science Foundation press release (and many subsequent press accounts) and the resulting coverage.

By Tim Redford, Climate News Network: LONDON — Climate change doesn't just threaten species that are already vulnerable — it could have alarming consequences for a huge range of birds, corals and amphibians that no - one had considered in danger of extinction before, according to a new study.

«Under the proposed development scenario, the ecosystems of the overall site are so fragmented as to virtually ensure the extinction of all the extant populations of amphibians and reptiles on that site designated by the state as species of special concern,» stated Dr. Klemens.

These experts again found no support for the Pounds» global warming hypothesis.22 So much for Pounds» forceful storytelling and his «very high confidence» (> 99 %, following the Intergovernmental Panel on Climate Change) that global warming was the driver of amphibian extinctions.

Later as amphibian biologists shared their research, it was realized that they were facing a global wave of local extinctions.

Indeed for the past 3 decades there has been an alarming wave of worldwide amphibian extinctions and after rigorous testing epidemiologists determined that an introduced fungus was the cause.

The loss of plant and animals species has accelerated, with scientific tallies showing one fifth or more of all species of mammals, birds and amphibians now at risk of extinction.

There are multiple causes of the detailed processes involved in global amphibian declines and extinctions [107]--[108], but global warming is a key contributor and portends a planetary - scale mass extinction in the making unless action is taken to stabilize climate while also fighting biodiversity's other threats [109].

«Nearly half of amphibian species, a third of corals, a quarter of mammals, a fifth of all plants and 13 percent of the world's birds are at risk of extinction, according to the «Red List» compiled by the International Union for Conservation of Nature (IUCN).»]

These dangers of extinction from climate change are well documented for mammals, birds, reptiles, amphibians (Foden et al., 2013; Pimm, 2009; Sinervo et al., 2010), and corals (Hoegh - Guldberg, 1999; Mumby et al., 2007; Pandolfi et al., 2011; Ricke et al., 2013).

For example, recent work suggests that up to 41 percent of bird species, 66 percent of amphibian species, and between 61 percent and 100 percent of corals that are not now considered threatened with extinction will become threatened due to climate change sometime between now and 2100 (Foden et al., 2013; Ricke et al., 2013), and that in Africa, 10 - 40 percent of mammal species now considered not to be at risk of extinction will move into the critically endangered or extinct categories by 2080, possibly as early as 2050 (Thuiller et al., 2006).

For those species where climate change has been invoked as a causal factor in extinction (such as for the case of Central American amphibians), there is low agreement among investigators concerning the importance of climate variation in driving extinction and even less agreement that extinctions were caused by climate change (Pounds et al., 2006; Kiesecker, 2011).

Of the more than 47,000 species surveyed, about 17,000 are at serious risk — of those 21 % of the world's mammal species, 12 % of birds, 28 % of reptiles, 30 % of amphibians, 35 % of invertebrates, 37 % of freshwater fish and 70 % of plants: Jane Smart, director of IUCN's Biodiversity Conservation Group says there is mounting evidence that we are in the midst of a serious extinction crisiOf the more than 47,000 species surveyed, about 17,000 are at serious risk — of those 21 % of the world's mammal species, 12 % of birds, 28 % of reptiles, 30 % of amphibians, 35 % of invertebrates, 37 % of freshwater fish and 70 % of plants: Jane Smart, director of IUCN's Biodiversity Conservation Group says there is mounting evidence that we are in the midst of a serious extinction crisiof those 21 % of the world's mammal species, 12 % of birds, 28 % of reptiles, 30 % of amphibians, 35 % of invertebrates, 37 % of freshwater fish and 70 % of plants: Jane Smart, director of IUCN's Biodiversity Conservation Group says there is mounting evidence that we are in the midst of a serious extinction crisiof the world's mammal species, 12 % of birds, 28 % of reptiles, 30 % of amphibians, 35 % of invertebrates, 37 % of freshwater fish and 70 % of plants: Jane Smart, director of IUCN's Biodiversity Conservation Group says there is mounting evidence that we are in the midst of a serious extinction crisiof birds, 28 % of reptiles, 30 % of amphibians, 35 % of invertebrates, 37 % of freshwater fish and 70 % of plants: Jane Smart, director of IUCN's Biodiversity Conservation Group says there is mounting evidence that we are in the midst of a serious extinction crisiof reptiles, 30 % of amphibians, 35 % of invertebrates, 37 % of freshwater fish and 70 % of plants: Jane Smart, director of IUCN's Biodiversity Conservation Group says there is mounting evidence that we are in the midst of a serious extinction crisiof amphibians, 35 % of invertebrates, 37 % of freshwater fish and 70 % of plants: Jane Smart, director of IUCN's Biodiversity Conservation Group says there is mounting evidence that we are in the midst of a serious extinction crisiof invertebrates, 37 % of freshwater fish and 70 % of plants: Jane Smart, director of IUCN's Biodiversity Conservation Group says there is mounting evidence that we are in the midst of a serious extinction crisiof freshwater fish and 70 % of plants: Jane Smart, director of IUCN's Biodiversity Conservation Group says there is mounting evidence that we are in the midst of a serious extinction crisiof plants: Jane Smart, director of IUCN's Biodiversity Conservation Group says there is mounting evidence that we are in the midst of a serious extinction crisiof IUCN's Biodiversity Conservation Group says there is mounting evidence that we are in the midst of a serious extinction crisiof a serious extinction crisis.

Through quantitative analysis the team found that across the reptiles and amphibians studied there was a 28 % overall chance of extinction by 2100.