Sentences with phrase «global extinction»

It's not all doom and gloom and mass global extinction, however.

This could be the first global extinction of megafauna — a creature larger than about 200 pounds (100 kilograms)-- for more than 50 years, since the disappearance of the Caribbean monk seal, the fourth disappearance of an entire mammal family since 1500, and the very first dolphin to face human - driven extinction.

«During the Late Permian (Figures 16 to 19) there was a major global extinction event which resulted in a large loss of species caused by catastrophic methane eruptions from destabilization of subsea methane hydrates in the Paleo - Arctic (Figures 16, 17 and 13a)(Wignall 2009) ``

The result of this biological mashup, even as global extinction rates are rising, is generally rising biological diversity on the local level.

Some researchers have proposed that these lava floods caused global extinctions on Earth and that they affect climate change, says planetary geologist Alfred McEwen of the University of Arizona, head of the Io observation team.

Some marine scientists think that coral reefs and the marine creatures that rely on them may die off within the next 50 - to - 100 years, causing the first global extinction of a worldwide ecosystem since prehistoric times.

Long - tailed duck is listed as vulnerable to global extinction by the International Union for the Conservation of Nature, and relies heavily on Massachusetts» coast for its overwintering habitat.

Drs. Hearty and Tormey conclude that with the greatly increased anthropogenic CO2 forcing at rates unmatched in nature, except perhaps during global extinction events, dramatic change is certain.

«It's the first time we can say this is a true global extinction,» says David Bond, a paleontologist at the University of Hull in the United Kingdom.

The asteroid impact that caused a massive global extinction event can be found on the coast of Mexico.

Earth's mightiest heroes must come together once again to protect the world from global extinction.

'' In thinking about global extinction we've got to free ourselves from this human time scale,» said Dr. John Alroy, an ecologist at the National Center for Ecological Analysis and Synthesis of the University of California at Santa Barbara.»

The paper, published last week in Science Advances used a new approach to estimate global extinction rates and supports previous studies finding that Earth is in the midst of a human - driven «mass extinction» spasm on the scale of past mass die - offs triggered by geophysical calamities.

Called the «epicenter of the current global extinction,» by Conservation International, this smattering of more than 4,000 South Pacific islands is at risk from both local human activity and global climate change.

Even if their money is able to buy them some initial advantages such as larded bunkers for example, they won't like what is left over after the next global extinction occurs.

Sobering news on a Friday morning: Worldwatch Institute is pointing out how global coral reef losses — 19 % of coral reefs in the world are dead, mostly the result of warming sea - surface temperatures and water acidification — is really a sign pointing towards a coming global extinction event.

Poaching and illegal wildlife trade (IWT), in the recent times have led to local and global extinction of several species such as the tiger in many parts of its range, Sumatran rhino and Pyrenean ibex.

Professor Toby Tyrrell, from Ocean and Earth Science at the University of Southampton and co-author of the study, says: «While the consequences of the various impact mechanisms could have made the surface ocean more acidic, our results do not point to enough ocean acidification to cause global extinctions.

It's predicted that within this century our oceans will be more acidic than they have been in 55 million years — the time of the last major mass global extinctions.

Understanding how communities and ecosystems recovered from the previous five global extinction events sheds light on how extinctions shape broad patterns of biodiversity.

Long - tailed duck is listed as vulnerable to global extinction, and relies heavily on Massachusetts» coast for its overwintering habitat.

This can be about animals or plants that are threatened within your local area as well as at the national or global level - many local extinctions will eventually add up to a global extinction!

We urgently need to adopt strategies that limit further climate change if we are to avoid an acceleration of global extinctions.

A global extinction crisis should show up in declining levels of local biodiversity, right?

Currently, 40 percent of species at risk of global extinction are island inhabitants.

However, these come at the cost of a variety of negative impacts on native ecosystems, the global homogenisation of floras and faunas, and the global extinction of native biota.

And some geologists now question whether the eruptions could have been disastrous enough to account for a global extinction.

«We can't look into recent history and find this particular cocktail of accelerated climate change, habitat destruction, and global extinction.

These maps have revealed that marine species are more at risk of global extinction than previously believed.

These high rates of potential local and global extinction have stimulated urgent calls for proactive conservation planning [8] and there is a pressing need to identify the most climate change vulnerable species, habitats and regions.

Felines accompanying their human companions have gone on to prey on the local wildlife, and they have been blamed for the global extinction of 33 species.Jan 29, 2013 How many birds are killed by cats every year?

As the global extinction rate is already catastrophic and increasing exponentially, forest dependent organisms can not endure this trend, nor will most lifeforms on earth cope with further loss of the critical global forest carbon sink.

If they become sufficiently anoxic the H2S producing bacteria could establish and trigger another global extinction.

The new extremes of wind and rain are part of a larger pattern that also includes rapidly melting glaciers worldwide, increasing desertification, a global extinction crisis, the ravaging of ocean fisheries, and a growing range for disease «vectors» like mosquitoes, ticks and many other carriers of viruses and bacteria harmful to people.»

Global Extinction... Within One Lifetime?

«David Attenborough Backs «Last Chance» Push to Study Australian Biodiversity» (The Guardian) «The Australian Academy of Science and its New Zealand counterpart, the Royal Society Te Apārangi, are launching a 10 - year plan to study and name unknown species, warning that a sound understanding of biodiversity is critical in the face of a global extinction crisis....»

One of the many species affected was the red - cockaded woodpecker, which was on the verge of global extinction, before longleaf restoration efforts and habitat management programs put the species on the road to recovery.