Matrix models of hierarchical demography : linking group-and population-level dynamics in cooperative breeders
dc.contributor.author | Bateman, Andrew W. | |
dc.contributor.author | Ozgul, Arpat | |
dc.contributor.author | Krkosek, Martin | |
dc.contributor.author | Clutton-Brock, Tim H. | |
dc.date.accessioned | 2019-03-14T11:07:35Z | |
dc.date.issued | 2018-08 | |
dc.description.abstract | For 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.department | Mammal Research Institute | en_ZA |
dc.description.embargo | 2019-08-31 | |
dc.description.librarian | am2019 | en_ZA |
dc.description.sponsorship | The 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. A | en_ZA |
dc.description.uri | https://www.journals.uchicago.edu/journals/an/about | en_ZA |
dc.identifier.citation | Bateman, 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.issn | 0003-0147 (print) | |
dc.identifier.issn | 1537-5323 (online) | |
dc.identifier.issn | 10.1086/698217 | |
dc.identifier.uri | http://hdl.handle.net/2263/68669 | |
dc.language.iso | en | en_ZA |
dc.publisher | University of Chicago Press | en_ZA |
dc.rights | © 2018 by The University of Chicago. All rights reserved. | en_ZA |
dc.subject | Matrix models | en_ZA |
dc.subject | Population dynamics | en_ZA |
dc.subject | Hierarchical demography | en_ZA |
dc.subject | Social species | en_ZA |
dc.subject | Cooperative breeders | en_ZA |
dc.subject | Allee effects | en_ZA |
dc.subject | African wild dog (Lycaon pictus) | en_ZA |
dc.subject | Meerkat (Suricata suricatta) | en_ZA |
dc.subject | Group size | en_ZA |
dc.subject | Density dependence | en_ZA |
dc.subject | Subordinate reproduction | en_ZA |
dc.subject | Dispersal strategies | en_ZA |
dc.subject | Southern Kalahari | en_ZA |
dc.title | Matrix models of hierarchical demography : linking group-and population-level dynamics in cooperative breeders | en_ZA |
dc.type | Article | en_ZA |