Do North American Migratory Barren-Ground Caribou Subpopulations Cycle

Bibliographic Data

ID16866640
AuthorsEric Bongelli (0000-0002-4116-9123, Lakehead University, corresponding author), Martha Dowsley (Lakehead University), Victor M Velasco-Herrera (0000-0002-0100-8878, Wisconsin Disability Association), Mitchell Taylor, Mitchell A Taylor (0000-0003-0062-094X, Lakehead University)
Year2020
Volume73
Issue3
Pages326-346
Publication date2020-09-29
Open AccessYes
TypeARTICLE
VenueARCTIC (JOURNAL)
Journal identifiersISSN: 0004-0843 • E-ISSN: 1923-1245
PublisherThe Arctic Institute of North America (PUBLISHER)
DOI10.14430/arctic71029
OpenAlexW3090325697
LanguageEN
References cited9

Unlike all other members of the deer family, subpopulations of barren-ground caribou (Rangifer tarandus groenlandicus) are typically sine-cyclic. We used Bayesian Information Criteria (BIC) to rank competing population dynamics models for 11 North American barren-ground caribou subpopulations. Nine of these subpopulations were best described as sine-cyclic with periods ranging from a minimum of 26 years (Bluenose-East and Porcupine) to a maximum of 55 years (Western Arctic); and amplitudes ranging from a minimum of 8 455 (Cape Bathurst) to a maximum of 327 432 (George River). Time series estimates of subpopulation abundance generated by the sine cycle models showed good correspondence to published subpopulation estimates of abundance for all nine sine-cyclic subpopulations (r = 0.978; p 3 generations) subpopulation declines are a natural feature of cyclic barren-ground caribou subpopulations. Trends in species abundance based on pooled assemblages of asynchronous cyclic subpopulations should be interpreted with caution

Abundance (ecology) · Annual cycle · Biology · Geography · Population · Range (aeronautics) · Demography · Ecology · Rangeland and Wildlife Management · Species Distribution and Climate Change · Wildlife Ecology and Conservation

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