Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/73088
Citations
Scopus Web of Science® Altmetric
?
?
Full metadata record
DC FieldValueLanguage
dc.contributor.authorHerrando-Perez, S.-
dc.contributor.authorDelean, J.-
dc.contributor.authorBrook, B.-
dc.contributor.authorBradshaw, C.-
dc.date.issued2012-
dc.identifier.citationEcology, 2012; 93(7):1728-1740-
dc.identifier.issn0012-9658-
dc.identifier.issn1939-9170-
dc.identifier.urihttp://hdl.handle.net/2440/73088-
dc.description.abstractA component density feedback represents the effect of change in population size on single demographic rates, whereas an ensemble density feedback captures that effect on the overall growth rate of a population. Given that a population's growth rate is a synthesis of the interplay of all demographic rates operating in a population, we test the hypothesis that the strength of ensemble density feedback must augment with increasing strength of component density feedback, using long-term censuses of population size, fertility, and survival rates of 109 bird and mammal populations (97 species). We found that compensatory and depensatory component feedbacks were common (each detected in 50% of the demographic rates). However, component feedback strength only explained <10% of the variation in ensemble feedback strength. To explain why, we illustrate the different sources of decoupling between component and ensemble feedbacks. We argue that the management of anthropogenic impacts on populations using component feedbacks alone is ill-advised, just as managing on the basis of ensemble feedbacks without a mechanistic understanding of the contributions made by its components and environmental variability can lead to suboptimal decisions.-
dc.description.statementofresponsibilitySalvador Herrando-Perez, Steven Delean, Barry W. Brook, and Corey J. A. Bradshaw-
dc.language.isoen-
dc.publisherEcological Soc Amer-
dc.rights© 2012 by the Ecological Society of America-
dc.source.urihttp://dx.doi.org/10.1890/11-1415.1-
dc.subjectcompensation-
dc.subjectconservation-
dc.subjectdensity dependence-
dc.subjectdepensation-
dc.subjectfertility-
dc.subjectmanagement-
dc.subjectmortality-
dc.subjectpopulation regulation-
dc.subjectrecruitment-
dc.subjectsurvival.-
dc.titleDecoupling of component and ensemble density feedbacks in birds and mammals-
dc.typeJournal article-
dc.identifier.doi10.1890/11-1415.1-
dc.relation.granthttp://purl.org/au-research/grants/arc/DP0878582-
dc.relation.granthttp://purl.org/au-research/grants/arc/DP0878582-
pubs.publication-statusPublished-
dc.identifier.orcidHerrando-Perez, S. [0000-0001-6052-6854]-
dc.identifier.orcidDelean, J. [0000-0003-1116-5014]-
dc.identifier.orcidBradshaw, C. [0000-0002-5328-7741]-
Appears in Collections:Aurora harvest 5
Earth and Environmental Sciences publications
Environment Institute Leaders publications
Environment Institute publications

Files in This Item:
File Description SizeFormat 
hdl_73088.pdfPublished version2.29 MBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.