Webbläsaren som du använder stöds inte av denna webbplats. Alla versioner av Internet Explorer stöds inte längre, av oss eller Microsoft (läs mer här: * https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Var god och använd en modern webbläsare för att ta del av denna webbplats, som t.ex. nyaste versioner av Edge, Chrome, Firefox eller Safari osv.

Both population size and patch quality affect local extinctions and colonizations.

In English

Författare

Summary, in English

Currently, the habitat of many species is fragmented, resulting in small local populations with individuals occasionally dispersing between the remaining habitat patches. In a solitary bee metapopulation, extinction probability was related to both local bee population sizes and pollen resources measured as host plant population size. Patch size, on the other hand, had no additional predictive power. The turnover rate of local bee populations in 63 habitat patches over 4 years was high, with 72 extinction events and 31 colonization events, but the pollen plant population was stable with no extinctions or colonizations. Both pollen resources and bee populations had strong and independent effects on extinction probability, but connectivity was not of importance. Colonizations occurred more frequently within larger host plant populations. For metapopulation survival of the bee, large pollen plant populations are essential, independent of current bee population size.

Avdelning/ar

Publiceringsår

2010

Språk

Engelska

Sidor

79-85

Publikation/Tidskrift/Serie

Royal Society of London. Proceedings B. Biological Sciences

Volym

277

Dokumenttyp

Artikel i tidskrift

Förlag

Royal Society Publishing

Ämne

  • Ecology

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1471-2954