CherryMerkleSigaudEtAl2019

Reference

Cherry, S.G., Merkle, J.A., Sigaud, M., Fortin, D., Wilson, G.A. (2019) Managing Genetic Diversity and Extinction Risk for a Rare Plains Bison (Bison bison bison) Population. Environmental Management, 64(5):553-563. (Scopus )

Abstract

Unfenced plains bison are rare and only occur in a small number of locations throughout Canada and the United States. We examined management guidelines for maintenance of genetic health and population persistence for a small and isolated population of plains bison that occupy the interface between a protected national park and private agricultural lands. To address genetic health concerns, we measured genetic diversity relative to other populations and assessed the potential effects of genetic augmentation. We then used individual-based population viability analyses (PVA) to determine the minimum abundance likely to prevent genetic diversity declines. We assessed this minimum relative to a proposed maximum social carrying capacity related to bison use of human agricultural lands. We also used the PVA to assess the probability of population persistence given the limiting factors of predation, hunting, and disease. Our results indicate that genetic augmentation will likely be required to achieve genetic diversity similar to that of other plains bison populations. We also found that a minimum population of 420 bison yields low probability of additional genetic loss while staying within society-based maxima. Population estimates based on aerial surveys indicated that the population has been below this minimum since 2007. Our PVA simulations indicate that current hunting practices will result in undesirable levels of population extinction risk and further declines in genetic variability. Our study demonstrates that PVA can be used to evaluate potential management scenarios as they relate to long-term genetic conservation and population persistence for rare species. © 2019, Crown.

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@ARTICLE { CherryMerkleSigaudEtAl2019,
    AUTHOR = { Cherry, S.G. and Merkle, J.A. and Sigaud, M. and Fortin, D. and Wilson, G.A. },
    TITLE = { Managing Genetic Diversity and Extinction Risk for a Rare Plains Bison (Bison bison bison) Population },
    JOURNAL = { Environmental Management },
    YEAR = { 2019 },
    VOLUME = { 64 },
    NUMBER = { 5 },
    PAGES = { 553-563 },
    NOTE = { cited By 0 },
    ABSTRACT = { Unfenced plains bison are rare and only occur in a small number of locations throughout Canada and the United States. We examined management guidelines for maintenance of genetic health and population persistence for a small and isolated population of plains bison that occupy the interface between a protected national park and private agricultural lands. To address genetic health concerns, we measured genetic diversity relative to other populations and assessed the potential effects of genetic augmentation. We then used individual-based population viability analyses (PVA) to determine the minimum abundance likely to prevent genetic diversity declines. We assessed this minimum relative to a proposed maximum social carrying capacity related to bison use of human agricultural lands. We also used the PVA to assess the probability of population persistence given the limiting factors of predation, hunting, and disease. Our results indicate that genetic augmentation will likely be required to achieve genetic diversity similar to that of other plains bison populations. We also found that a minimum population of 420 bison yields low probability of additional genetic loss while staying within society-based maxima. Population estimates based on aerial surveys indicated that the population has been below this minimum since 2007. Our PVA simulations indicate that current hunting practices will result in undesirable levels of population extinction risk and further declines in genetic variability. Our study demonstrates that PVA can be used to evaluate potential management scenarios as they relate to long-term genetic conservation and population persistence for rare species. © 2019, Crown. },
    AFFILIATION = { Parks Canada Agency, Box 100, Waskesiu, SK S0J 2Y0, Canada; Département de Biologie and Centre d’Étude de la Forêt, Université Laval, 1045 avenue de la Médecine, Québec, Québec, G1V 0A6, Canada; Parks Canada Agency, 1-55401 R.R. 203, Fort Saskatchewan, AB T8L 0V3, Canada; Parks Canada Agency, Box 220, Radium Hot Springs, BC V0A 1M0, Canada; Department of Zoology and Physiology, University of Wyoming, Dept. 3166, 1000 East University Avenue, Laramie, WY 82071, United States },
    AUTHOR_KEYWORDS = { Conservation; Genetic diversity; Population thresholds; Social carrying capacity; Sustainable harvest },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1007/s00267-019-01206-2 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-85074376765&doi=10.1007%2fs00267-019-01206-2&partnerID=40&md5=eb93d333ff0d35167f86b3e34e1b194b },
}

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