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One barrier to protecting biodiversity is that there are no good ways of figuring out how many species there are in large areas. Now we may finally be able to find out: a new method accurately predicts the total number of North American butterfly species even when only a tenth of the ecoregions are sampled.
This could “at last enable ecology to estimate worldwide species diversity,” say Michael Rosenzweig, Will Turner and Jonathan Cox of the University of Arizona, Tucson, and Taylor Rickett
New research reveals a surprising risk factor for extinction: monogamy. Large mammals that live in pairs or have small harems are far more likely to die out than those with big harems in reserves in Ghana.
“In avoiding extinction, it pays to be promiscuous,” says Justin Brashares of the University of British Columbia in Vancouver, who presents this work in the June issue of Conservation Biology. “This study is the first to show a strong link between social behavior and risk of extinction in
Effective today, the World Health Organization (WHO) is removing its recommendation that people should postpone all but essential travel to Hong Kong Special Administrative Region and Guangdong Province, China.
The recommendation to consider postponing all but essential travel to Hong Kong and Guangdong was issued on 2 April in order to minimize the international spread of Severe Acute Respiratory Syndrome (SARS). WHO is changing this recommendation as the situation in these areas ha
A crucial part in the battle to prevent outbreaks of deadly disease across the world lies with ecologists, an MSU professor says.
Preserving biodiversity and wildlife habitats are at the foundation of global health, says Jianguo “Jack” Liu, an ecologist who is the lead author for a Policy Forum in the May 23 issue of Science magazine.
The article outlines ways to protect biodiversity in China’s vast system of nature reserves. But Liu said the issues span farther than China, and
Hydrothermal vents and cold seeps were discovered more than 20 years ago, yet remarkably little is known about the biodiversity of these chemosynthetic ecosystems. Deep-sea vents and seeps occur in very different geological settings, yet in both types of systems, microbial primary production supports an abundance of large invertebrates, such as giant tubeworms, clams, and mussels.
These animals in turn provide refuge for a diverse invertebrate fauna. Because seeps are considered to be more
Butterfly flight simulator sheds light on epic migration
During their winter migration to Mexico, monarch butterflies depend on an internal clock to help them navigate in relation to the sun, scientists have found.
By studying monarchs inside a specially designed flight simulator, the researchers have gathered what they believe is the first direct evidence of the essential role of the circadian clock in celestial navigation. The study appears in the journal Science, publishe