Putting endangered wildlife in a corner

Photo by Aziz Saltik (flickr)

Our new paper on extinction risk in marine and terrestrial species is out today in PNAS, “Range contraction enables harvesting to extinction” [free preprint here]. Led by Matthew Burgess at UCSB, the research shows that shrinking distributions puts many animals at further risk from extinction as their abundance decline. While harvesters (fishers or hunters) are typically expected to stop harvesting when a species becomes rare and the costs of harvest become too high, contraction of a species into dense clusters can keep harvesting profitable, even at very low abundance. Examples of species with these contractions include Bengal tigers, Asian elephants, and bluefin tunas.

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