California's rich diversity of Native American ethnic-and-language groups took shape during the past 12,000 years as migrating tribes settled first on the lush Pacific coast and then in progressively drier, less-vegetated ...
Archaeology
Aug 19, 2013
3
0
With the growing severity of marine heatwaves, mass coral bleaching and mortality have become widespread. A new study led by researchers at Florida Tech recommends multinational networks of protected reefs as the best chance ...
Ecology
Apr 29, 2022
0
124
Research conducted in recent decades has shown how the destruction of forests brings about a decline in species diversity. A research group in Brazil led by scientists at São Paulo State University (UNESP) has now reported ...
Plants & Animals
Mar 16, 2020
0
402
Around 250 million years ago, at the end of the Permian geologic period, there was a mass extinction so severe that it remains the most traumatic known species die-off in Earth's history. Although the cause of this event ...
Earth Sciences
Jan 9, 2012
1
0
A newly published collection of more than 20 studies by leading university scientists and government fishery researchers in Alaska, British Columbia, Washington, Oregon, California, Russia and Japan provides mounting evidence ...
Ecology
May 14, 2012
0
0
Freshwater ecosystems in northern regions are home to significantly more species of water fleas than traditionally thought, adding to evidence that regions with vanishing waters contain unique animal life.
Ecology
Mar 2, 2012
0
0
All tadpoles grow into frogs, but not all frogs start out as tadpoles, reveals a new study on 720 species of frogs to be published in the journal Evolution.
Evolution
Sep 10, 2012
1
0
More than 99 per cent of modern vertebrates (animals with a backbone, including humans) have jaws, yet 420 million years ago, jawless, toothless armour-plated fishes dominated the seas, lakes, and rivers. There were no vertebrates ...
Plants & Animals
Jul 6, 2011
0
1
UBC researchers have proffered a new mathematical model that seeks to unravel a key evolutionary riddle--namely what factors underlie the generation of biological diversity both within and between species.
Mathematics
Apr 22, 2010
0
0
Predictions of the loss of animal and plant diversity around the world are common under models of future climate change. But a new study shows that because these climate models don't account for species competition and movement, ...
Ecology
Jan 4, 2012
6
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