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What Is the Allee Effect?
P. A. Stephens, W. J. Sutherland and R. P. Freckleton
Vol. 87, No. 1 (Oct., 1999), pp. 185-190
Stable URL: http://www.jstor.org/stable/3547011
Page Count: 6
You can always find the topics here!Topics: Population size, Demography, Population dynamics, Sex ratio, Population growth, Ecological competition, Density, Conservation biology, Population density, Demographic fluctuations
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W. C. Allee brought attention to the possibility of a positive relationship between aspects of fitness and population size over fifty years ago. This phenomenon, frequently termed the Allee effect, has been the focus of increased interest over the past two decades in the light of concerns over conservation and the problems of rarity. Use of the term suffers from the absence of a clear definition however, with the result that Allee effects are frequently thought to involve only a narrow range of phenomena and are often overlooked altogether. We propose a definition for the effect and attempt to resolve the major issues underlying the confusion surrounding this term.
Oikos © 1999 Nordic Society Oikos