Matrix models of hierarchical demography : linking group-and population-level dynamics in cooperative breeders

dc.contributor.authorBateman, Andrew W.
dc.contributor.authorOzgul, Arpat
dc.contributor.authorKrkosek, Martin
dc.contributor.authorClutton-Brock, Tim H.
dc.date.accessioned2019-03-14T11:07:35Z
dc.date.issued2018-08
dc.description.abstractFor highly social species, population dynamics depend on hierarchical demography that links local processes, group dynamics, and population growth. Here, we describe a stage-structured matrix model of hierarchical demography, which provides a framework for understanding social influences on population change. Our approach accounts for dispersal and affords insight into population dynamics at multiple scales. The method has close parallels to integral projection models but focuses on a discrete characteristic (group size). Using detailed long-term records for meerkats (Suricata suricatta), we apply our model to explore patterns of local density dependence and implications of group size for group and population growth. Taking into account dispersers, the model predicts a per capita growth rate for social groups that declines with group size. It predicts that larger social groups should produce a greater number of new breeding groups; thus, dominant breeding females (responsible for most reproduction) are likely to be more productive in larger groups. Considering the potential for future population growth, larger groups have the highest reproductive value, but per capita reproductive value is maximized for individuals in smaller groups. Across a plausible range of dispersal conditions, meerkats’ longrun population growth rate is maximized when individuals form groups of intermediate size.en_ZA
dc.description.departmentMammal Research Instituteen_ZA
dc.description.embargo2019-08-31
dc.description.librarianam2019en_ZA
dc.description.sponsorshipThe European Research Council (research grant 294494 to T.H.C.-B. since July 1, 2012), the University of Zurich, and the Mammal Research Institute at the University of Pretoria. A.W.B. was supported by Natural Sciences and Engineering Research Council of Canada (NSERC) and Killam postdoctoral fellowships. M.K. acknowledges support from an NSERC Discovery Grant and the Canada Research Chairs Program. A.O. acknowledges support from Swiss National Science Foundation Grant CR32I3_159743. Aen_ZA
dc.description.urihttps://www.journals.uchicago.edu/journals/an/abouten_ZA
dc.identifier.citationBateman, A.W., Ozgul, A., Krkosek, M. et al. 2018, 'Matrix models of hierarchical demography : linking group-and population-level dynamics in cooperative breeders', American Naturalist, vol. 192, no. 2, pp. 188-203.en_ZA
dc.identifier.issn0003-0147 (print)
dc.identifier.issn1537-5323 (online)
dc.identifier.issn10.1086/698217
dc.identifier.urihttp://hdl.handle.net/2263/68669
dc.language.isoenen_ZA
dc.publisherUniversity of Chicago Pressen_ZA
dc.rights© 2018 by The University of Chicago. All rights reserved.en_ZA
dc.subjectMatrix modelsen_ZA
dc.subjectPopulation dynamicsen_ZA
dc.subjectHierarchical demographyen_ZA
dc.subjectSocial speciesen_ZA
dc.subjectCooperative breedersen_ZA
dc.subjectAllee effectsen_ZA
dc.subjectAfrican wild dog (Lycaon pictus)en_ZA
dc.subjectMeerkat (Suricata suricatta)en_ZA
dc.subjectGroup sizeen_ZA
dc.subjectDensity dependenceen_ZA
dc.subjectSubordinate reproductionen_ZA
dc.subjectDispersal strategiesen_ZA
dc.subjectSouthern Kalaharien_ZA
dc.titleMatrix models of hierarchical demography : linking group-and population-level dynamics in cooperative breedersen_ZA
dc.typeArticleen_ZA

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