Do males matter? The role of males in population dynamics

Show simple item record Rankin, Daniel J. en Kokko, Hanna en
dc.contributor.other Laboratory of Evolutionary and Ecological Dynamics, Department of Biological and Environmental Science, University of Helsinki, Finland en 2008-04-11T09:17:11Z en 2009-06-17T14:02:21Z 2008-04-11T09:17:11Z en 2009-06-17T14:02:21Z 2007 en
dc.identifier.citation OIKOS 2007 vol 116 (2 )335-348 en
dc.identifier.issn 0030-1299 en
dc.identifier.uri en
dc.description.abstract Models of population dynamics generally neglect the presence of males. While this assumption holds under many circumstances, behavioural ecology increasingly tells that the presence (or absence) of males may have an impact on female fitness, and hence population sizes. Here we ask the question of whether males matter to population dynamics, operationally defined as a dependency of population growth on the relative density of males. We provide simple models, and evaluate the current 8 empirical evidence for them, that illustrate various mechanisms of such male influence: mate searching behavior, male resource use (including effects of sexual dimorphism), sexual harassment and sexual segregation. In each case, theory predicts that males can have an effect on population densities, and in some extreme cases a positive feedback between an increasingly male-biased sex ratio and the effects on female harassment may theoretically even bring about population extinction. The results of this study, and the literature reviewed, show that the males can have a substantial effect on population dynamics, particularly so when human influences result in biased sex ratios. en
dc.language.iso en en
dc.subject population density, sexual selection, sexual conflict, mate finding, male, resource use, sexual harassment, density dependence en
dc.subject sexual selection en
dc.title Do males matter? The role of males in population dynamics en
dc.type Article en
dc.identifier.laitoskoodi B57115 fi
dc.creator.corporateName Ekologia ja evoluutiobiologia (Bio- ja ympäristötieteiden laitos) fi
dc.creator.corporateName Ecology and Evolutionary Biology (Department of Biological and Environmental Sciences) en
dc.creator.corporateName Ekologi och evolutionsbiologi (Institutionen för bio- och miljövetenskaper) sv

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