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Density-dependence by habitat heterogeneity: individual quality versus territory quality

AutorBalbontín, Javier; Ferrer, Miguel
Fecha de publicación5-jun-2008
EditorJohn Wiley & Sons
CitaciónOikos 117(7): 1111 - 1114 (2008)
Resumenhe aim of this comment is to review the ecological issues concerning the role of individual and habitat heterogeneity as possible mechanisms explaining density-dependent fecundity in animal populations. Our intention is to discuss different approaches to determine whether or not studied populations are subjected to density-dependent processes and which mechanisms are involved. We show that because individual quality (e.g. measured in terms of age of breeding individuals) and territory quality can be correlated, untangling both effects on fecundity is frequently a difficult task. We discuss the misuse of statistical methods and other problems related to the specific characteristics of the studied populations that can have a strong influence on the conclusions reached by researchers working in this field.
Descripción4 pages.
Versión del editorhttp://dx.doi.org/10.1111/j.0030-1299.2008.16232.x
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