Data from: Density-dependent population dynamics of a high Arctic capital breeder, the barnacle goose ...

1. Density regulation of the population growth rate occurs through negative feedbacks on underlying vital rates, in response to increasing population size. Here, we examine in a capital breeder how vital rates of different life history stages, their elasticities, and population growth rates are affe...

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Bibliographic Details
Main Authors: Layton-Matthews, Kate, Loonen, Maarten J.J.E., Hansen, Brage Bremset, Coste, Christophe F. D., Sæther, Bernt-Erik, Grøtan, Vidar
Format: Dataset
Language:English
Published: Dryad 2019
Subjects:
perturbation analysis
barnacle geese
integrated population model
capital breeder
Arctic
Svalbard
Barnacle goose
Branta leucopsis
Online Access:https://dx.doi.org/10.5061/dryad.200pk95
https://datadryad.org/stash/dataset/doi:10.5061/dryad.200pk95
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Summary:1. Density regulation of the population growth rate occurs through negative feedbacks on underlying vital rates, in response to increasing population size. Here, we examine in a capital breeder how vital rates of different life history stages, their elasticities, and population growth rates are affected by changes in population size. 2. We developed an integrated population model for a local population of Svalbard barnacle geese, Branta leucopsis, using counts, reproductive data and individual-based mark-recapture data (1990-2017) to model age class-specific survival, reproduction and number of individuals. Based on these estimates, we quantified the changes in demographic structure and the effect of population size on age class-specific vital rates and elasticities, as well as the population growth rate. 3. Local density regulation at the breeding grounds acted to reduce population growth through negative effects on reproduction; however, population size could not explain substantial variation in survival ... : Parameter estimates for DD regressions_JAEParameter estimates for fitting the density dependence regressions. Includes annual estimates of age-class specific survival (and sex-specific recapture rates), reproduction, population sizes and population growth rates. Survival, recapture and population growth rates are from t to t+1.datafordryad_JAE.xlsxIPM_script_JAER script for fitting the integrated population modelIPMscript_JAE_appendix7.txt ...

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