News tagged with species richness


Southern Hemisphere Ants Richer and More Diversified

Southern Hemisphere Ants Richer and More Diversified

Biology / Plants & Animals

created May 06, 2009 | popularity 4.7 / 5 (3) | comments 0

There are fewer species of ants in the northern hemisphere than in the southern hemisphere. This is the conclusion drawn by an international team of scientists that have studied 1,003 local ant assemblages ...


Microbial societies do not like oligarchy

Biology / Cell & Microbiology

created Mar 12, 2009 | popularity not rated yet | comments 0

Bacteria and humans tend to live in highly diverse and complex communities. Most interestingly, bacteria and humans appear to prefer to live in a democracy. This is the basic message of the paper entitled "Initial community ...





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Biologists produce global map of plant biodiversity

Biologists produce global map of plant biodiversity

Biology /

created Mar 20, 2007 | popularity 4.1 / 5 (14) | comments 0

Biologists at the University of California, San Diego and the University of Bonn in Germany have produced a global map of estimated plant species richness. Covering several hundred thousand species, the scientists ...


Naming evolution's winners and losers

Naming evolution's winners and losers

Biology / Evolution

created Jul 29, 2009 | popularity 3.4 / 5 (10) | comments 8

(PhysOrg.com) -- Mammals and many species of birds and fish are among evolution's "winners," while crocodiles, alligators and a reptile cousin of snakes known as the tuatara are among the losers, according ...


Biofuels and biodiversity don't mix, ecologists warn

Space & Earth / Environment

created Jul 09, 2008 | popularity 3.8 / 5 (6) | comments 0

Rising demand for palm oil will decimate biodiversity unless producers and politicians can work together to preserve as much remaining natural forest as possible, ecologists have warned. A new study of the potential ecological ...


Theory provides more precise estimates of large-area biodiversity

Theory provides more precise estimates of large-area biodiversity

Biology / Ecology

created Jul 09, 2009 | popularity 5 / 5 (2) | comments 0

Ask biologists how many species live in a pond, a grassland, a mountain range or on the entire planet, and the answers get increasingly vague. Hence the wide range of estimates for the planet's biodiversity, ...


Why are there so many more species of insects? Because insects have been here longer

Biology /

created Apr 03, 2007 | popularity 4.7 / 5 (6) | comments 0

J. B. S. Haldane once famously quipped that "God is inordinately fond of beetles." Results of a study by Mark A. McPeek of Dartmouth College and Jonathan M. Brown of Grinnell College suggest that this fondness was expressed ...


Bird diversity lessens human exposure to West Nile Virus

Biology /

created Oct 06, 2008 | popularity 4.7 / 5 (3) | comments 0

A study by biologists at Washington University in St. Louis shows that the more diverse a bird population is in an area, the less chance humans have of exposure to West Nile Virus (WNV).


Scientists say biodiversity is crucial to ecosystem productivity

Scientists say biodiversity is crucial to ecosystem productivity

Space & Earth / Environment

created Apr 24, 2008 | popularity 1 / 5 (1) | comments 0

In the first experiment involving a natural environment, scientists at Brown University have shown that richer plant diversity significantly enhances an ecosystem's productivity. The finding underscores the ...


Flood 2002

Vegetation hardly affected by extreme flood events

Space & Earth / Environment

created Sep 24, 2008 | popularity 2.5 / 5 (2) | comments 1

Extreme flood events in floodplain grasslands affect carabid beetles and molluscs more than plants. This is the finding of a study by biologists from the Helmholtz Centre for Environmental Research (UFZ), ...


Human vision inadequate for research on bird vision

Biology /

created May 12, 2008 | popularity 4.8 / 5 (12) | comments 0

The most attractive male birds attract more females and as a result are most successful in terms of reproduction. This is the starting point of many studies looking for factors that influence sexual selection in birds. However, ...


New fossil reveals primates lingered in Texas

Other Sciences / Archaeology & Fossils

created Oct 14, 2008 | popularity 4.2 / 5 (19) | comments 1

(PhysOrg.com) -- More than 40 million years ago, primates preferred Texas to northern climates that were significantly cooling, according to new fossil evidence discovered by Chris Kirk, physical anthropologist at The University ...



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