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When less is more: Positive population-level effects of mortality

Schröder, A and van Leeuwen, A and Cameron, TC (2014) 'When less is more: Positive population-level effects of mortality.' Trends in Ecology and Evolution, 29 (11). 614 - 624. ISSN 0169-5347

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Experimental and theoretical studies show that mortality imposed on a population can counter-intuitively increase the density of a specific life-history stage or total population density. Understanding positive population-level effects of mortality is advancing, illuminating implications for population, community, and applied ecology. Reconciling theory and data, we found that the mathematical models used to study mortality effects vary in the effects predicted and mechanisms proposed. Experiments predominantly demonstrate stage-specific density increases in response to mortality. We argue that the empirical evidence supports theory based on stage-structured population models but not on unstructured models. We conclude that stage-specific positive mortality effects are likely to be common in nature and that accounting for within-population individual variation is essential for developing ecological theory.

Item Type: Article
Subjects: G Geography. Anthropology. Recreation > GF Human ecology. Anthropogeography
Divisions: Faculty of Science and Health > Life Sciences, School of
Depositing User: Jim Jamieson
Date Deposited: 14 Oct 2014 11:32
Last Modified: 12 Oct 2021 17:15

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