News tagged with ecological niche
Competition is at the root of diversity in rainforests: study
Another attractive theory falls foul of the facts. A census of trees in rainforests on three continents has confirmed that competition plays a central role in structuring communities. This contradicts the so-called neutral ...
Jan 26, 2012 |
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Biodiversity improves water quality in streams through a division of labor
Biologically diverse streams are better at cleaning up pollutants than less rich waterways, and a University of Michigan ecologist says he has uncovered the long-sought mechanism that explains why this is ...
Apr 06, 2011 |
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Bats keep separate households
(PhysOrg.com) -- The use of different resources by males and females exacerbates the estimation of population sizes. However, the monitoring of population sizes, particularly for rare and threatened species, ...
Mar 24, 2011 |
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How seabirds share their habitat
When different species of seabirds share a habitat with limited sources of food, they must differ in their feeding habits. This specialization is known by biologists as an "ecological niche". Researchers at ...
Jan 05, 2011 |
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Species distribution models can exaggerate differences in environmental requirements
Separate species that live in radically different environments don't necessarily also have different ecological niches. This is the finding of a study investigating the accuracy of current statistical tests ...
Apr 14, 2010 |
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Evolution may take giant leaps
(PhysOrg.com) -- A new study of thousands of species of plants and animals suggests new species may arise from rare events instead of through an accumulation of small changes made in response to changes in ...
Dec 11, 2009 |
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Small evolutionary shifts make big impacts, study finds
(PhysOrg.com) -- In the developing fetus, cell growth follows a very specific schedule. In the eye's retina, for example, cones -- which help distinguish color during the day -- develop before the more light-sensitive ...
May 20, 2009 |
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