Sentences with phrase «human extinction by»

He predicts complete human extinction by 2030.

Not exact matches

On the contrary the fishing of sharks for their fins by humans has brought many species to the brink of extinction.

Reading Pierre Trudeau's remarks today, I'm struck by his foresight on issues like protection of fragile Arctic landscapes, and the capability of humans to push our species and others into extinction.

Sadly, the algebra of politics and economics is governed by this human shortcoming that will steer us to certain extinction in an order that is much shorter than possible.

By the beginning of the 20th century, human - induced extinctions were quickening to one species every year.

And this scares you more than it would if the person with the power over extinction was someone who believed that human life was an accident representible by the 0.000000000000000000000000001 % chance that some chemicals could combine in just the right way, at just the right time, with just the right frequency to eventually give rise to sentience.

Wild species are threatened with extinction as their habitats are destroyed by human disturbance.

Once we collectively understand our situation: the contribution made by humans to the degradation of the environment and the extinction of other species, or the impact consumers in the rich West have had, and continue to have, on the impoverishment of producers in developing countries, our proper response is to want to change things - and to change them radically.»

Homo sapiens, Neanderthals and other recent human relatives may have begun hunting large mammal species down to size — by way of extinction — at least 90,000 years earlier than previously thought, says a new study published in the journal Science.

Venus flytraps are considered vulnerable to extinction, threatened by humans, Sorenson notes.

Excerpted from SCATTER, ADAPT, AND REMEMBER: How Humans Will Survive a Mass Extinction by Annalee Newitz.

Homo floresiensis, the mysterious and diminutive species found in Indonesia in 2003, is tens of thousands of years older than originally thought — and may have been driven to extinction by modern humans.

According to some predictions, climate change caused by human activity could cause mass extinction in the oceans, redraw the planet's coastlines, and ravage world food supplies.

«There was anecdotal evidence too: both thylacines and devils lasted for over 40,000 years following the arrival of humans in Australia; their mainland extinction about 3000 years ago was just after dingoes were introduced to Australia; and the fact that thylacines and devils persisted on Tasmania, which was never colonised by dingoes.

The simulations showed that while dingoes had some impact, growth and development in human populations, possibly intensified by climate change, was the most likely extinction driver.

«The extreme selectivity of the modern extinction threat with respect to body size is best explained by the size bias in human hunting and fishing activities, which often preferentially target the largest animals in the oceans, or the largest animals within their respective taxonomic groupings,» said Payne.

Or is minimizing alterations to the global environment introduced by human activity — rising levels of CO2 from fossil - fuel burning, widespread extinction, dams that impound water — more important to our success?

And it is a mass extinction entirely caused by the relentless expansion of human habitat and agriculture, as well as human domination of the natural systems — such as the climate — that make life possible.

The existential threats could include species extinctions and major threats to human water and food supplies in addition to the health risks posed by exposing over 7 billion people worldwide to deadly heat.

He studied analyses of previous reef extinctions and accrued more and more evidence of the effects of changing sea levels, temperature stresses, predation by crown - of - thorns starfish and human - influenced changes in nutrient levels.

That has squeezed out the Quino checkerspot butterfly's habitat, and with the climate changes coming as a result of human greenhouse gas emissions, its listing as an endangered species by the U.S. government may not be enough to save the pretty little butterfly from extinction.

«By studying the effects of the Permian - Triassic mass extinction and the subsequent recovery, we can apply the lessons we learn to the mass extinction being caused by humans today.&raquBy studying the effects of the Permian - Triassic mass extinction and the subsequent recovery, we can apply the lessons we learn to the mass extinction being caused by humans today.&raquby humans today.»

The authors showed that after the initial waves of human arrival, mammal extinctions followed, presumably first caused by hunting and later by forest clearing for agriculture, which reduces the habitat for native mammals.

But our love of dolphins might not be enough to save them from extinction brought on by overfishing, pollution, climate change and other environmental affronts perpetrated by humans.

Scientists still do not fully know the precise reasons for the extinction of many species; it probably took place due to a combination of climate change and hunting by humans.

And while previous extinctions have been driven by natural planetary transformations or catastrophic asteroid strikes, the current die - off can be associated to human activity, a situation that the lead author Rodolfo Dirzo, a professor of biology at Stanford, designates an era of «Anthropocene defaunation.»

Since the 1980s, many biologists have concluded that Earth is in the midst of a massive biodiversity extinction crisis caused by human activities.

The ultimate keystone predator, humans alter their environments by eliminating species and modifying ecosystem structure and function, thereby contributing to extinction, altering evolution itself.

By quantifying mammalian extinction selectivity, the researchers documented what happened to mammals as early humans left Africa through the compilation of extensive data including mammal body size, climate, extinction status and geographic location over the last 125,000 years.

«We're in a mass extinction right now, not one caused by volcanoes or meteorites, but by humans,» explains Rieppel.

Perceived as a threat to humans, livestock and game animals, the Florida Panther was persecuted and hunted to near extinction by the mid-1950s.

With the human population continuing to rise by 75 million or more per year and with torrid economic growth in much of the developing world, the burdens of deforestation, pollution, greenhouse gas emissions, species extinction, ocean acidification and other massive threats intensify.

Thisapparent extinction, far from creating a domino effect of furtherlosses, may have created an opportunity for other grasshopper species.The red - legged grasshopper (Melanoplus femurrubrum), which wasresponsible for newsworthy outbreaks in Idaho two years ago, thrives onground broken by agriculture and other human endeavors.

Humans are pushing sea turtles to the brink of extinction by entangling them in fishing gear, tossing plastic garbage into their habitats, and building resorts on prime nesting beaches, among other affronts.

Roberto Cazzolla Gatti, who began to be interested in the role of cooperation in evolution since 2011, when he published a controversial paper titled «Evolution is a cooperative process: the biodiversity - related niches differentiation theory (BNDT) can explain» concluded: «These theoretical findings, confirmed by empirical approaches, should motivate our species to think before it is too late about how human competition, for the first time in the history of life on Earth, has been systematically leading to the extinction of animals and plants.

Adapted from The Fate of the Species: Why the Human Race May Cause Its Own Extinction and How We Can Stop It, by Fred Guterl (Bloomsbury USA, 2012).

The dodo represents one of the best - known examples of extinction caused by humans, yet we know surprisingly little about this flightless pigeon from a scientific perspective.

Galatzer - Levy analyzed data from large studies in humans and mice that involved «fear conditioning» and «fear extinction,» during which subjects receive a mild aversive stimulus when exposed to a sound or light, and «fear extinction learning,» during which conditioning is reversed by applying sound or light without the stimulus.

This is clearest in the Americas, where the debate over whether humans or climate caused Late Pleistocene extinctions has raged for decades (the truth is probably a combination of these two factors, including a trophic cascade caused by human - mediated extinctions of large carnivores).

Today we may be in the throes of another mass extinction, caused by human overexploitation of habitats.

This species faces a high risk of extinction due to its isolation and tiny population size — it could potentially become the first ape species to be wiped out by human activity.

In the jargon it's an «Anthropocene defaunation,» or sixth mass extinction, and one caused by humans.

On the contrary, if the extinction of these mammals were due to climate change, elephants and mammoths should remain in regions already colonized by humans and would only begin to die off once climate change occurred.

Homo sapiens, Neanderthals and other recent human relatives may have begun hunting large mammal species down to size - by way of extinction - at least 90,000 years earlier than previously thought, says a new study published...

Unsustainable hunting for consumption and trade of wild meat (also known as bushmeat) by humans represents a significant extinction threat to wild terrestrial mammal populations, perhaps most notably in parts of Asia, Africa and South America [4 — 6].

Previous to this hypothesis, the common reasons for mammoth extinction have been climate change, over-hunting by early humans, or a disease.

And human induced species extinctions (e.g. sabertooth tiger, mammoth) were well under way by that time.

Ben is a natural historian of species driven to extinction by humans specializing in the study of Passenger Pigeons.

Today, the need for a clear understanding of how biodiversity is created and maintained has intensified in the face of mass extinctions driven by human activity.

He can be reached at Waubansee Productions, LaGrange Park, IL, at: [email protected] His latest film, From Billions to None: The Passenger Pigeon's Flight to Extinction, is a compelling look at the forgotten story of a super-abundant bird species driven to extinction by humans in a matter oExtinction, is a compelling look at the forgotten story of a super-abundant bird species driven to extinction by humans in a matter oextinction by humans in a matter of decades.