There is much more to avian biodiversity in the United States than the number of different species living in a given region or community, but the diversity of birds' ecosystem contributions—assessed through measures of ...
Plants & Animals
Mar 2, 2023
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11
Not all Chinook salmon are created equal, and this has a major impact on the energetics for southern resident killer whales. A recent study quantified the lipid content in Fraser River Chinook salmon—the southern resident's ...
Plants & Animals
Feb 17, 2023
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118
Every autumn, billions of birds migrate across the eastern U.S. en route to their wintering sites. As the birds undertake their journeys, however, they are faced with increasing threats, including habitat loss, storms, feral ...
Plants & Animals
Jan 11, 2023
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73
A UCLA-led study published today reveals that migratory birds across North America are getting smaller, a change the researchers attribute to the rapidly warming climate.
Evolution
Oct 28, 2022
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203
Migratory animals include a wide range of species—from tiny insects to the world's largest marine mammals. To achieve their journeys, migrants must walk, swim, or fly, often traversing complex landscapes that requires many ...
Plants & Animals
Aug 10, 2022
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65
A new study examines how the geographic characteristics of the world's islands influence seasonal variation in the number of bird species. The study determines how seasonal species richness of birds is affected by the size ...
Plants & Animals
Aug 10, 2022
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83
Swans give up resting time to fight over the best feeding spots, new research shows.
Plants & Animals
Jul 8, 2022
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82
Migratory birds are declining globally because of the way that humans have modified the landscape over recent decades—according to new research from the University of East Anglia.
Plants & Animals
Jun 24, 2022
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229
More than forty scientists from the National Audubon Society and other leading bird and wildlife research and conservation groups published a new study modeling a novel approach to mapping seasonal migration pathways for ...
Ecology
Jun 7, 2022
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256
In all vertebrates, mothers transfer variable amounts of hormones into eggs and embryos, which influence development and traits of offspring in later lives. In a recent study the researchers looked at the transferred hormones ...
Evolution
May 25, 2022
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23
