Latest Extinction threshold Stories
Predicting the risk of extinction is a complicated task, especially for species that migrate between breeding and wintering sites.
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.
Water fleas reveal we are underestimating species extinction risk.