Sentences with phrase «humans changed their habitats»

Not exact matches

At the same time, we would like to see not merely the preservation of existing wilderness, but changes in human habitat and land use that would allow us to share the land much more generously with other species.

The previous five were caused by natural events — meteorite impacts and global temperature change — but this latest is decidedly human - generated, primarily through habitat destruction.

Today's frogs, comprising more than 6,700 known species, as well as many other animal and plant species are under severe stress around the world because of habitat destruction, human population explosion and climate change, possibly heralding a new period of mass extinction.

But some researchers have argued that the transition from the frigid climatic period known as the Last Glacial Maximum (LGM)-- about 20,000 to 25,000 years ago — to the current warm Holocene Epoch brought habitat changes that killed off the mammoths with little or no help from humans.

The authors suggest that human activity may even be driving a similar Lilliput - like pattern in the modern world, as more and more large animals go extinct because of hunting, habitat destruction, and climate change.

The vigorous, vehement and vexed reactions to any piece I have written that mentions climate change, combined with the power of greed on the one hand and the struggle for subsistence on the other, have convinced me there is no chance that governments will significantly reduce the output of industrial greenhouse gases in time to stave off considerable change to the planet's climate and to human habitats.

The process might happen naturally if corals could adapt quickly enough to their changing habitat, but with little time to spare, humans have stepped in to speed up the clock.

But the most damaged and changing places would need everything from habitat restoration to potential human - assisted movement of species.

«I think the reduction of habitat definitely decreased their population size,» Hung says, noting something similar may explain the extinction of other outbreak species in North America, like the Rocky Mountain grasshopper in the western U.S. «Our study suggests that the combination of natural population size changes and human disturbances drove the rapid extinction of this bird.»

Human - induced climate change, which affects temperature, precipitation and the nature of extreme events, is increasingly driving biodiversity loss and the reduction of nature's contributions to people, worsening the impact of habitat degradation, pollution, invasive species and the overexploitation of natural resources.»

He adds: «Plants native to European habitats changed by humans had a head start: They have been spread more often, and the living conditions in their new homes were ideal.

The result of the study was clear: Species from European habitats that have been highly changed by humans, such as fields and fallow land, were extremely successful in the conquest of other continents.

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.

There are immediate reasons to study the vocal patterns of cetaceans: these marine mammals are threatened by human activities through competition for fishery resources, entanglement in fishing gear, collisions with vessels, exposure to pollutants and oil spills and, ultimately, shrinking habitats due to anthropogenic climate change.

The World Conservation Union ranks the loss of native habitat and the introduction of invasive species as the most crucial problems, but unchecked activities like fishing, hunting, and logging play a role — as does human - induced climate change.

«People rely on bees and pollinating insects for a large proportion of our food, yet humans have paid the bees back with habitat destruction, insecticides, climate change and air pollution.

This more dynamic view of conservation, which allows for species» adaptation to human - altered habitats and changing climates, may be a way to maintain a portion of endangered genetic ancestry, the scientists suggest.

«Such long - term insights are crucial in helping with current conservation efforts, laying a foundation for future research on impacts of island formation, climate change and human occupation on animals and their habitats.»

Study co-author Jianguo Liu of Michigan State University, who began studying the human and natural forces driving habitat loss in the panda's geographic range in 1996, noted that some of the changes that have occurred in the region are encouraging.

But Jianguo «Jack» Liu, the MSU Rachel Carson Chair in sustainability and paper co-author, notes that habitat fragmentation, human impacts and climate change still cast a shadow over the panda's future.

For their studies on a species of human malaria that is also carried by monkeys, as part of a larger project funded by the UK Research Council Living with Environmental Change initiative, Fornace and her colleagues are using a drone to map changes in mosquito and monkey habitats and correlate how those changes affect human infection.

The DNA analysis allowed the scientists to infer the timeline for the habitat changes of the Central Highlands — it happened thousands of years before humans arrived on the island.

The analyses were then applied to estimate how biodiversity in every square kilometre land has changed since before humans modified the habitat.

It works slowly on the genes and traits it has at hand, to jerry - rig animals» and humans body plans to changing habitats and demands.

And Sonia Altizer, a disease ecologist at the University of Georgia, Athens, notes that the lobsters» ability to detect illness is helpful now, but the PaV1 virus could wreak havoc should the lobster's habitat be destroyed by human activity or climate change.

However, there's a whole army of other factors that we need to be more concerned about than scientific collecting — including habitat loss, pathogens, human activities and climate change.

Researchers have long assumed that these dramatic transitions resulted in a sort of accelerated evolution in which genes for traits such as skin color and stature changed rapidly to allow humans to survive in their new habitats.

Express strong concern about the increasing threats arising from growing human footprint and climate change to the survival of snow leopards and associated mountain biodiversity and to the maintenance of watershed and ecosystem services their habitats provide;

«In these habitats, the natural pollutants give us a glimpse into the future and help us think about what happens in ecosystems that suffer from human - induced changes or pollution,» he said.

Aside from the obvious fact that there could hardly be a worse approach to climate change, it certainly won't help address the equally important ecological destruction that is a result of human overshoot — habitat destruction, ocean acidification, over-fishing, logging, pollution, etc..

Other research is looking into questions about how seamount populations change in response to climate - induced shifts in ocean circulation and whether habitats disturbed by human activity can recover.

Develop's children's scientific knowledge about habitats and how they change - both through natural causes and the impacts of humans.

Life Science: Habitats & Environmental Change Build understanding of the human impact on animal populations.

As for the main threats to wildlife, leading biologists and environmental watchdogs agree: human - led activities — including climate change, habitat destruction, and development — are far and away the number one cause of wildlife depletion.

Studies agree that human activities — climate change, habitat destruction and pollution — are the real culprits when some bird populations decline.

The main threats to all species on our planet are habitat destruction, climate change, pollution, and other human activities.

Because human visitors can change wildlife behavior and damage habitat.

With the nine oil paintings and three works on paper that comprise the exhibition, Miller continues to explore the narrative potential of the animal world by revisiting many of the themes that she has surveyed in her work for the past thirty years, including the relationship between predator and prey, the effect of changing habitats upon both flora and fauna, the folly of our human sense of control over nature, and the passage of time.

Also, I'm not sure I see strong support for this concluding sentence: «Although polar bears have persisted through previous warm phases, multiple human - mediated stressors (e.g., habitat conversion, persecution, and accumulation of toxic substances in the food chain) could magnify the impact of current climate change, posing a novel and likely profound threat to polar bear survival.»

I guess I come down on the values and policy side: we have excellent technology but can't seem to make even the simplest behavioral changes, either as individuals or societies, that would go a long way towards mitigating the many facets of habitat destruction in which we humans are engaged.

Low / no - tech is not going to offer the opportunity to build off - planet habitats for when the asteroid comes, or, say, genetically engineer humans themselves to survive acute «natural» environmental changes.

Dot Earth has focused, off and on, on the role of art in conveying the changing relationship of humans and their habitat.

Humans have encroached upon nearly every habitat on the planet, and climate change threatens places from coastlines to glaciers worldwide.

(05/13/2013) Even as concentrations of carbon dioxide in the atmosphere hit 400 parts per million (ppm) for the first time in human history last week, a new study in Nature Climate Change warns that thousands of the world's common species will suffer grave habitat loss under climate cChange warns that thousands of the world's common species will suffer grave habitat loss under climate changechange.

«A minor change in Earth's atmosphere removes human habitat.»

In the case of climate change, just because some scientists and environmentalist believe in their hearts and hearts that we humans are destroying our habitat, (exaggerate the effects) does not make it so.

Key elements include curbing human carbon dioxide emissions to the atmosphere, improved control of local pollution sources, reducing coastal habitat destruction, and better preparing coastal human communities to withstand the amount of ocean acidification and climate change that is unavoidable.

Julia Lehmann, from Roehampton University, said: «In reality, the effects of climate change on African apes may be much worse, as our model does not take into account possible anthropogenic effects, such as habitat destruction by humans and the hunting of apes for bushmeat.»

As primary habitats move north, which species will be able to keep up with changing habitats on their own or with human intervention through assisted migration, management of migration corridors, or construction or maintenance of protected habitats within species» current landscapes?

Potential impacts of climate change on the transmission of Lyme disease include: 1) changes in the geographic distribution of the disease due to the increase in favorable habitat for ticks to survive off their hosts; 85 2) a lengthened transmission season due to earlier onset of higher temperatures in the spring and later onset of cold and frost; 3) higher tick densities leading to greater risk in areas where the disease is currently observed, due to milder winters and potentially larger rodent host populations; and 4) changes in human behaviors, including increased time outdoors, which may increase the risk of exposure to infected ticks.