Sentences with phrase «bird populations»

In the time that records have been kept of bird populations, 20 percent of all species have gone extinct.

The key result of the study is that with longer dry seasons and more intense seasonal drought, there is an overall negative effect on bird populations.

They then tracked bird populations in each experimental and control plot using point - count surveys, in which researchers look and listen for birds for a set amount of time.

The authors say cats may be the single greatest cause of human - related mortality in wild bird populations.

Compare the results from former years and you'll become experts on your local bird population and migration habits.

The report uses three decades of citizen - science observations to understand how climate change is affecting bird populations.

The volunteer - generated count has helped track bird populations around the world.

Experts disagree about whether backyard bird feeding will significantly help bird populations.

We have published several reports about bird populations including the State of the Birds reports.

In this region, the most abundant bird population of the country has been found.

From a scientific perspective it is therefore crucial to monitor bird populations.

Within these impact zones, mammal populations declined on average by 83 % and bird populations by 58 %.

More frequent and severe weather events may further stress bird populations.

Other significant hazards to bird populations include chemical toxins and direct exploitation from hunting and capturing birds for pets.

One key goal now is to get a baseline of the current bird population.

Cats also have a profound impact on wildlife, particularly bird populations.

They're trying not to introduce human foods to the precious bird population.

It is also one of the longest and first studies to examine tropical bird populations and climate change.

Previous studies suggest that bird populations exposed to higher levels of these heavy metals lay fewer eggs and have reduced male fertility.

Now scientists are linking the chemicals to shrinking bird populations.

By offering birds nesting opportunities, bird population increases and mosquitoes decrease, which reduces the spread of diseases.

The positive impacts on bird populations are due to increased space and the presence of cattle.

The construction and restoration of wetlands can improve the living conditions of bird populations.

While there he assisted in the care of the wild bird population.

By turning out the lights, we can remove one source of mortality from already stressed bird populations.

Worldwide, habitat destruction is the leading cause of bird population declines and loss of biodiversity.

That's why we are focused on conserving habitat and reducing other threats that have the potential to reduce bird populations even before the impacts of climate change are fully realized.

Even if we all were to agree that cats are damaging bird populations at the species level (an idea that Welcome to Subirdia very neatly refutes), one would think that bird conservationists and cat advocates could nevertheless agree on TNR, because TNR not only reduces the number of cats, it also reduces the need of cats to hunt, since colony caregivers feed the cats.

In addition to the videotaped evidence, prosecutors also introduced evidence that Dauphiné has a long history advocating in academic literature for the control of feral cat populations in order to protect native bird populations.

«Our study justifies the high value of shoreline habitats for conservation of migratory bird populations in the Great Lakes region,» says Buler.

A former researcher at the Smithsonian National Zoo's Migratory Bird Center has been found guilty of misdemeanor attempted cruelty to animals for sprinkling poison atop cat food intended for feral cats living in Washington, D.C. Yesterday's verdict, delivered by a judge in the D.C. Superior Court, marks the latest turn in the prosecution of wildlife biologist Nico Dauphiné, an outspoken advocate of the need to protect bird populations from feral cats.

And while Genovesa harbors one of the Galapagos» largest and most diverse bird populations, there are no land reptiles — with the exception of some very small marine iguanas.

The study shows that maintenance can improve the conditions of declining wetland bird populations.

Peer - reviewed research, published in the leading journal Nature this Wednesday, has revealed data from the Netherlands showing that bird populations fell most sharply in those areas where neonicotinoid pollution was highest.

«One of the most important observations was that after maintenance efforts end, the wetland bird populations start to decline.

Rachel Carson's seminal 1962 book, Silent Spring, told the real - life story of how bird populations across the country were suffering as a result of the widespread application of the synthetic pesticide DDT (dichlorodiphenyltrichloroethane), which was being used widely to control mosquitoes and others insects.

«We studied bird populations following two types of vegetation removal, prescribed fire and mastication (the mechanical crushing of vegetation), because both management methods have been used to try reduce wildfire risk in California chaparral,» said Erica Newman, lead author of the study and scientist in the UA School of Natural Resources and the Environment.

Your gift during Morris Animal Foundation's Season of Hope supports studies such as our Healthy Animals Initiative to help protect wild bird populations from threats like lead exposure.

But they would need an immense omelette to replace a seal breakfast and this type of mass egg hunting can devastate nesting bird populations.

«Once we find the Mhc, we'll compare its frequency in current bird populations with birds before the epidemic,» says Edwards.

Looking for, and out for, Canada's breeding birds SFI awarded a grant of nearly $ 250,000 over three years to not - for - profit Bird Studies of Canada to research breeding bird populations.

LINCOLN, MA — Help keep bird populations strong and healthy throughout the coldest season and all year long by participating in Mass Audubon's annual Focus on Feeders statewide winter bird count Saturday and Sunday, February 1 - 2.

After the discussion, we'll take a bird hike around Lake Talaquega and explore local bird populations while learning how to identify them.

Although none of the captured mosquitoes carried lethal viruses such as the West Nile virus (WNV)-- which decimated bird populations in the US after arriving in New York in 1999 — they have the potential to do so.

Knowing that researchers in the early 20th century had shown that avian predators can wipe out an entire population of cicadas that emerges out of sequence, Koenig decided to take a look at how bird populations might affect the insects» cycles.

The study is based on the long - term monitoring of bird populations using the same line transect method.