Natural restoration of the species-area relation for a lizard after a hurricane

Citation
Tw. Schoener et al., Natural restoration of the species-area relation for a lizard after a hurricane, SCIENCE, 294(5546), 2001, pp. 1525-1528
Citations number
28
Categorie Soggetti
Multidisciplinary,Multidisciplinary,Multidisciplinary
Journal title
SCIENCE
ISSN journal
00368075 → ACNP
Volume
294
Issue
5546
Year of publication
2001
Pages
1525 - 1528
Database
ISI
SICI code
0036-8075(20011116)294:5546<1525:NROTSR>2.0.ZU;2-Q
Abstract
We document the decimation and recovery of the commonest lizard species, An olis sagrei, on 66 islands in the Bahamas that were directly hit by Hurrica ne Floyd in September 1999. Before the hurricane, an island's area was a be tter predictor of the occurrence of A. sagrei than was its altitude. Immedi ately after, altitude was a better predictor: Apparently all Lizards on isl ands Lower than about 3 meters maximum elevation perished in the storm surg e. After about 1 year, area again became the better predictor. By 19 months after the hurricane, A. sagrei populations occurred on 88% of the islands they formerly occupied. Recovery occurred via overwater colonization and pr opagation from eggs that survived inundation, mechanisms that were enhanced by larger island area. Thus, natural processes first destroyed and then qu ickly restored a highly regular species-area distribution.