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Latest Extinction threshold Stories

New Model Accurately Describes Migratory Animals’ Extinction Risk
2011-11-17 04:14:41

Predicting the risk of extinction is a complicated task, especially for species that migrate between breeding and wintering sites. Researchers at the University of Georgia and Tulane University have developed a mathematical model that may make such predictions more accurate. Their work appears in the early online edition of the Royal Society journal Biology Letters. "The concern is that for a lot of species, we don't know very much about their wintering grounds," said Richard Hall,...

2005-07-08 19:00:00

In their article in the July 2005 issue of The American Naturalist, Yssa D. DeWoody, Zhilan Feng, and Robert K. Swihart (Purdue University) model species' occupancy within a patchy dynamic landscape. They derive deterministic persistence thresholds which depend jointly upon the spatial and temporal structure of the landscape, reinforcing the importance of spatio-temporal connectivity. This model has the potential to predict various consequences of different land-use strategies and thus serve...

2005-06-06 02:50:00

Last year, the World Conservation Union reported an unprecedented decline in biodiversity, with nearly 16,000 species facing extinction. The biggest threat to most species is loss of habitat. And as habitat loss and degradation proceed nearly unabated, the need to accurately predict the population dynamics and extinction risk of potentially endangered species has never been greater. In a new study, John Drake tests models traditionally used to estimate the likelihood of extinction and shows...


Word of the Day
ramage
  • Boughs or branches.
  • Warbling of birds in trees.
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