Title: On valuing patches: estimating contributions to metapopulation growth with reverse-time capture-recapture modeling
Author: Sanderlin, Jamie S.; Waser, Peter M.; Hines, James E.; Nichols, James D.;
Source: Proceedings of the Royal Society B. 279: 480-488.
Publication Series: Paper (invited, offered, keynote)
Description: Metapopulation ecology has historically been rich in theory, yet analytical approaches for inferring demographic relationships among local populations have been few. We show how reverse-time multi-state capturerecapture models can be used to estimate the importance of local recruitment and interpopulation dispersal to metapopulation growth. We use 'contribution metrics' to infer demographic connectedness among eight local populations of banner-tailed kangaroo rats, to assess their demographic closure, and to investigate sources of variation in these contributions. Using a 7 year dataset, we show that: (i) local populations are relatively independent demographically, and contributions to local population growth via dispersal within the system decline with distance; (ii) growth contributions via local survival and recruitment are greater for adults than juveniles, while contributions involving dispersal are greater for juveniles; (iii) central populations rely more on local recruitment and survival than peripheral populations; (iv) contributions involving dispersal are not clearly related to overall metapopulation density; and (v) estimated contributions from outside the system are unexpectedly large. Our analytical framework can classify metapopulations on a continuum between demographic independence and panmixia, detect hidden population growth contributions, and make inference about other population linkage forms, including rescue effects and source-sink structures. Finally, we discuss differences between demographic and genetic population linkage patterns for our system.
Keywords: contribution metrics, density effects, dispersal, kangaroo rat, seniority, source-sink
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
- You may send email to email@example.com to request a hard copy of this publication. (Please specify exactly which publication you are requesting and your mailing address.)
XML: View XML
Sanderlin, Jamie S.; Waser, Peter M.; Hines, James E.; Nichols, James D. 2012. On valuing patches: estimating contributions to metapopulation growth with reverse-time capture-recapture modeling. Proceedings of the Royal Society B. 279: 480-488.
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility