Sentences with phrase «on animal population»

Furthermore, to determine with confidence the effects of any spay / neuter program on the animal population, which naturally fluctuates somewhat from year to year, population trends must be examined over a period sufficiently long to absorb those natural fluctuations.

We are all proud of the impact we have on animal population control.

The researchers also found that using physiological biomarkers, such as hormones from droppings, is an effective way of evaluating the impact of ecological and demographic factors on animal populations.

Nadeau also studies the potential impacts of climate change on species around the globe, using modeling, field observation and experiments to predict where species are most vulnerable and determine how conservation groups can best mitigate the negative impacts of climate change on animal populations.

Results of research on the voles, presented at the annual meeting of the Society for the Study of Evolution in Montreal last month, raises questions about the full effect of radiation on animal populations and on humans.

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

These process outcomes confirm the practicality of using cow - calf herds as sentinel populations for environmental exposures and support the validity of subsequent research on these animal populations.

Others were just a few minutes, as I checked on my animal populations, read a few biodex entries, and placed a few new animal territories (and hoping these would outlive the last).

With Chula and Jude at our feet, and Kane and Rosebud watching us, we met a second time to discuss the impact of climate change on animal populations:

Not exact matches

«The Red Triangle includes roughly 200 miles of coastline.But it's not the beachgoers and surfers that attract great whites to these waters.It's the rich population of other mammals like elephant seals, harbor seals, sea lions, and sea otters.Great whites prefer to prey on these animals instead of humans.

That did not happen: there is no geological record of a world - wide flood, there is not enough diversity to regenerate the population we currently, there is not enough water to cover the earth to the height of Everest, the logistics of retrieving and returning animals to the then - unknown Americas, Australia, etc. were staggeringly difficult, managing the animals on the Ark was impossible — a few humans keeping predators from their prey, cleaning the waste, etc., pretty much all life on earth would have been killed, etc. etc..

The most passionate argument in the book, in a chapter on declining Jewish population, pleads that, after the Holocaust, Jews are an endangered species, deserving protection and enhancement for the sake of diversity, like the bald eagle: «You have friends who work to rescue endangered animal and plant species, so you know why this matters.»

Perhaps surprising is that these firms are targeting meat eaters, not vegans or vegetarians, and they are doing so by focusing on the need for the entire population to cut down on animal consumption to conserve valuable water and land resources.

«It is my desire and my purpose to further the education of the people of Texas and elsewhere in wildlife conservation, in the knowledge of the breeding and living habits of our wild creatures and in the relationship of wildlife to domesticated livestock on our ranches and farms; to afford students and others interested in wildlife betterment and propagation and in the raising of wildlife along with domesticated animals a place for research and an opportunity for the study thereof; and to develop scientifically methods of increasing the wildlife population of the state and nation for the benefit of future generations... who may not have the opportunity to know and appreciate our wildlife, as I have, unless methods of increasing and conserving our wildlife are scientifically developed.

On Thursday, the museum — which bills itself as the oldest in Chicago — will turn out some of its rarer animal specimens, including a small rodent called a southern rock vole and two specimens of prairie chicken, a species whose population has rapidly declined due to habitat destruction.

The campaign aims to help the endangered animals in their homeland, educate the public about the damage ivory consumption does to elephant populations and secure a moratorium on ivory trading in the U.S., the world's second largest importer of ivory.

The deer population on Staten Island has recently boomed, with an aerial survey done by the Parks Department last year finding nearly 800 of the animals in the borough.

STATEN ISLAND — Hundreds of deer would be sterilized in a three - year program proposed as a way to curb the animals» population boom on Staten Island.

Her findings, published in the Journal of Animal Ecology on June 5, could help wildlife managers target their efforts to prevent outbreaks and potentially help public health officials prevent disease in human populations as well.

Hanna Granroth - Wilding, who led the study, said: «Our knowledge of disease in wild animals has tended to focus on the individual, but our study shows that we need to pay more attention to the broader consequences of disease to fully appreciate the role that it plays in wild populations, especially those whose numbers may be under threat.»

That raises a question: If you insist on returning an animal to the sea, are you harming the population?

She could then move on to bioluminescence as a tool for locating and mapping various populations of animals and observing how they overlap.

The result is the denuding of wild populations and a vast recycling of mistreated animals, most of which are likely die on one of their ersatz flights to freedom.

Meanwhile, populations of certain species of Antarctic penguins such as the Adélie are dwindling, and Antarctic krill — the tiny crustaceans that feed whales and many other animals — are also on the decline.

This in turn placed higher pressures on both the animal populations and the forest, as people drew more heavily upon the natural resources of the region to sustain themselves.

«It's highly likely that in the future, drones will be used to monitor populations of birds and animals, especially in inaccessible areas where on the ground surveying is difficult or impossible.

These animals were 12 000 years old and contemporary with mammoths on the adjacent mainland, so the researchers believe they were the ancestral population.

«It is ideal to house monkeys together for their social welfare, but we also need to consider the fertility of these animals, which is typically high, and be able to make responsible decisions on population size» explains Angela Colagross - Schouten, lead veterinarian on the project.

This gruesome scene is a bonanza for the local population of ravens, which has exploded in recent years as hunting has increased, a researcher told the Animal Behavior Society meeting here on 15 July.

To determine the true toll, the Three Gorges Dam is taking on animal and plant species, Liu says, long - term data is needed, so that decreases in population totals can be compared with natural species fluctuation.

The study throws cold water on the federal government's claims that the Yellowstone grizzly population has been recovering steadily and the animals could be removed from the threatened species list.

They also show «unequivocally that conservation that is only based on numbers,» that is, on how many animals are in a population, «and which does not take into account the individual ends in disaster.»

The finding, experts say, has implications for conservation management, which often solely focuses on the number of animals in a population, and may extend to chimpanzees, dolphins, whales, and other species.

Though some biologists recently have criticized the collection of specimens as potentially jeopardizing fragile populations of rare animals, Gardner said collecting expeditions to biologically unknown areas remain a critical part of understanding life on the planet.

A critical assumption of any research is that the animals being studied represent their entire population,» said M. Brad Eppard, a fisheries biologist with the Portland District of the U.S. Army Corps of Engineers and a co-author on the paper.

«The goals of the study were to help re-establish populations of this threatened and declining species, and to understand better what critical resources on the landscape are associated with the ability of young tortoises to survive and thrive,» said Ron Swaisgood, Ph.D., director of Applied Animal Ecology at San Diego Zoo Global.

Looking at indicators of population size and density (such as the number of stone tools, animal remains, and total number of sites), he concluded that modern humans — who may have had a population of only a few thousand when they first arrived on the continent — came to outnumber the Neanderthals by a factor of ten to one.

«And Randy has written the book on the health of a population of wild animals.

The effects of waste on larger animals, including birds with stomachs full of plastic, have garnered significant attention, he says, but «when you start altering [whole] populations,... that's when you get these true impacts.»

Dr Ellis says the impact on different sexes should be properly assessed in all aquatic animals to accurately predict how populations will respond to climate change.

Mercury pollution in marine animals might be behind a population crash of foxes on a Russian island

Hammerhead sharks, which have recently received new protections from the UN Convention on the Conservation of Migratory Species of Wild Animals, are experiencing drastic population declines in excess of 90 % in several parts of world.

From 1989 to 1993, we were able to place radio collars on three to five pandas each year, allowing us to track a population of about 20 animals on a daily basis.

It has long been debated whether that change in subsistence strategy involved the mass migration of people from the Near East bringing innovative technologies and domestic animals to Europe or whether it was due to a transmission of cultural practices passed on from neighbouring populations.

The use of cell surface markers to isolate specific cell populations is one common method for separating cells; however, isolating live cells based on their RNA expression is a powerful new way enabling the study of small cell niches in nongenetically modified animal models and human tissue.

They suggest that current specimen collection practices may actually pose a risk to vulnerable animal populations already on the brink of extinction.

So when algal populations explode, say, because of warming water, domoic acid concentrations increase in these animals to a point that they affect the sea lions that feast on them.

A robust animal, it is now found on every continent, with an estimated worldwide population of around 40 million.

The discovery shows that the food intake of mothers — which impacts on the appetite of their offspring — protects animals from periods of population boom and bust.

In 1991, with only 100 field crickets remaining in a single population in West Sussex, researchers at the London Zoo embarked on the sort of captive breeding program usually reserved for higher - profile or furrier animals.