Island Extinction Rates from Regular Censuses

Michael L. Rosenzweig, Colin W. Clark

Research output: Contribution to journalArticlepeer-review

42 Scopus citations

Abstract

Regular censuses conducted over a long time allow the calculation of both extinction and immigration rates. We present formulae for estimation of those rates. We use them on bird censuses of three British islands. These formulae improve on previous estimators of extinction but reaffirm that smaller populations have a higher probability of becoming extinct. On the other hand, they suggest no correlation between extinction rate and either body size or migratory status among birds.

Original languageEnglish (US)
Pages (from-to)491-494
Number of pages4
JournalConservation Biology
Volume8
Issue number2
DOIs
StatePublished - Jun 1994
Externally publishedYes

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Nature and Landscape Conservation

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