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Cited by 5,367

The DOI matches its Crossref record.

Sources, Sinks, and Population Regulation

Pulliam, H. Ronald·1988·The American Naturalist
DOI 10.1086/284880
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Abstract

Animal and plant populations often occupy a variety of local areas and may experience different local birth and death rates in different areas. When this occurs, reproductive surpluses from productive source habitats may maintain populations in sink habitats, where local reproductive success fails to keep pace with local mortality. For animals with active habitat selection, an equilibrium with both source and sink habitats occupied can be both ecologically and evolutionarily stable. If the surplus population of the source is large and the per capita deficit in the sink is small, only a small fraction of the total population will occur in areas where local reproduction is sufficient to compensate for local mortality. In this sense, the realized niche may be larger than the fundamental niche. Consequently, the particular species assemblage occupying any local study site may consist of a mixture of source and sink populations and may be as much or more influenced by the type and proximity of other habitats as by the resources and other conditions at the site.

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Metadata

Authors
Pulliam, H. R.
Venue
The American Naturalist
Publisher
University of Chicago Press
Published
1988-11
Volume
132
Issue
5
Pages
652-661
ISSN
  • 0003-0147 (ISSN-L)
  • 1537-5323
DOI
10.1086/284880
OpenAlex
W2001691516
Cited by
5,367
References
0
FWCI
32.32
Type
journal article
Language
en
Open access
closed

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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.