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Latest Generalist and specialist species Stories

2012-08-17 06:01:17

In the face of a changing climate many species must adapt or perish. Ecologists studying evolutionary responses to climate change forecast that cold-blooded tropical species are not as vulnerable to extinction as previously thought. The study, published in the British Ecological Society's Functional Ecology, considers how fast species can evolve and adapt to compensate for a rise in temperature. The research, carried out at the University of Zurich, was led by Dr Richard Walters, now at...

2012-01-24 21:51:11

Division of labor is not only a defining feature of human societies but is also omnipresent among the building blocks of biological organisms and is considered a major theme of evolution. Theoretical Biologists Claus Rueffler and Joachim Hermisson from Vienna University in collaboration with Günter P. Wagner from Yale University identified necessary conditions under which division of labor is favored by natural selection. The results of their study are published in the...

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2011-08-09 07:35:00

How rodents survive arms race with toxic plants they eat Life is tough for woodrats in deserts of the U.S. Southwest. There are few plants for food, and those plants produce poison to deter rodents, insects and other animals. A new University of Utah study shows how certain woodrats put themselves on a diet to avoid poisoning: They sample a smorgasbord of toxic plants, eat smaller meals, increase time between meals and drink more water if it is available. "For decades, we have been trying to...

2009-07-15 14:27:37

U.S. biologists say they've determined some sexually produced plants better withstand insect attacks than do asexually produced plants. North Carolina State University and Duke University researchers said the finding is an important step toward learning more about how plants have evolved defenses against insect herbivores. In the study, the researchers performed laboratory and field experiments on evening primrose (Onagraceae), a plant family that has 259 different species -- 85 percent of...


Word of the Day
ambsace
  • Bad luck; misfortune.
  • The smallest amount possible or the most worthless thing.
The word 'ambsace' comes from a Latin word meaning 'both'.