Resource use, competition, and resource availability in Hawaiian honeycreepers

Author:

Pimm, Stuart L., Pimm, June W.

Title:

Resource use, competition, and resource availability in Hawaiian honeycreepers

Periodical:

Ecology

Year:

1982

Volume:

63

Pages:

1468-1480

Subject:

Competition Habitat selection Apapane Himatione sanguinea sanguinea Hawaii Amakihi Hemignathus virens Metrosideros collina Mamane Sophora chrysophylla Iiwi Vestiaria coccinea Hawaii Volcanoes National Park

Summary:

This paper tests three predictions about resource selection in competing species developed by Rozenzweig and others. His models are of two species which can exploit and compete for two habitat patches. Rosenzweig's models predict three occasions where resource scarcity will be accompanied by specialization. These three predictions are tested in this paper. The restriction of the behaviorally dominant species to high-quality resources and the temporal and spacial scarcity of such resources suggest that dominant species are more likely to be threatened than are subordinate species that are capable of using poorer resources.

Label:

Birds - General

URL:

http://cletus.uhh.hawaii.edu:2074/10.2307/1938873

Collection:

Periodicals