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© 2008 E. Schweizerbartsche Verlagsbuchhandlung, D-70176 Stuttgart
Verh. Internat. Verein. Limnol.
2008, vol. 30, Part 2, p. 272­274, Stuttgart, April 2008
© by E. Schweizerbart'sche Verlagsbuchhandlung 2008
Emergence of functional responses from interactions of
individuals
Donald L. DeAngelis, Shu Ju, and J. Nathaniel Holland
Introduction
Ratio-dependent functional responses are regarded by many
ecologists to be relatively uncommon in nature, or at least lack-
ing in a solid mechanistic basis. Our objective was to show that
such responses can be given a mechanistic basis, and to show
that such responses might actually occur more commonly than
thought and can be appropriate for some broad classes of con-
sumer-resource systems, such as wading birds feeding in a
wetland.
The prey-dependent Holling Type II functional response, F,
can be written as

Source: Azevedo, Ricardo - Department of Biology and Biochemistry, University of Houston
Holland, J. Nathaniel - Department of Ecology and Evolutionary Biology, Rice University

Collections: Biology and Medicine; Environmental Sciences and Ecology