Effects of hunting on genetic diversity, inbreeding and dispersal in Finnish black grouse (Lyrurus tetrix)

Chen R, Soulsbury CD, Lebigre C, Ludwig G, van Oers K, Hoffman J (2022)
Evolutionary Applications .

Zeitschriftenaufsatz | E-Veröff. vor dem Druck | Englisch
 
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Autor*in
Chen, RebeccaUniBi; Soulsbury, Carl D.; Lebigre, Christophe; Ludwig, Gilbert; van Oers, Kees; Hoffman, JosephUniBi
Abstract / Bemerkung
Intensive hunting activities such as commercial fishing and trophy hunting can have profound influences on natural populations. However, less intensive recreational hunting can also have subtle effects on animal behaviour, habitat use and movement, with implications for population persistence. Lekking species such as the black grouse (Lyrurus tetrix) may be especially prone to hunting as leks are temporally and spatially predictable, making them easy targets. Furthermore, inbreeding in black grouse is mainly avoided through female-biased dispersal, so any disruptions to dispersal caused by hunting could lead to changes in gene flow, increasing the risk of inbreeding. We therefore investigated the impact of hunting on genetic diversity, inbreeding and dispersal on a metapopulation of black grouse in Central Finland. We genotyped 1065 adult males and 813 adult females from twelve lekking sites (six hunted, six unhunted) and 200 unrelated chicks from seven sites (two hunted, five unhunted) at up to thirteen microsatellite loci. Our initial confirmatory analysis of sex-specific fine-scale population structure revealed little genetic structure in the metapopulation. Levels of inbreeding did not differ significantly between hunted and unhunted sites in neither adults nor chicks. However, immigration rates into hunted sites were significantly higher among adults compared to immigration into unhunted sites. We conclude that the influx of migrants into hunted sites may compensate for the loss of harvested individuals, thereby increasing gene flow and mitigating inbreeding. Given the absence of any obvious barriers to gene flow in Central Finland, a spatially heterogeneous matrix of hunted and unhunted regions may be crucial to ensure sustainable harvests into the future.
Stichworte
black grouse; heterozygosity; hunting; lekking; microsatellite; population structure
Erscheinungsjahr
2022
Zeitschriftentitel
Evolutionary Applications
ISSN
1752-4571
eISSN
1752-4563
Page URI
https://pub.uni-bielefeld.de/record/2968212

Zitieren

Chen R, Soulsbury CD, Lebigre C, Ludwig G, van Oers K, Hoffman J. Effects of hunting on genetic diversity, inbreeding and dispersal in Finnish black grouse (Lyrurus tetrix). Evolutionary Applications . 2022.
Chen, R., Soulsbury, C. D., Lebigre, C., Ludwig, G., van Oers, K., & Hoffman, J. (2022). Effects of hunting on genetic diversity, inbreeding and dispersal in Finnish black grouse (Lyrurus tetrix). Evolutionary Applications . https://doi.org/10.1111/eva.13521
Chen, Rebecca, Soulsbury, Carl D., Lebigre, Christophe, Ludwig, Gilbert, van Oers, Kees, and Hoffman, Joseph. 2022. “Effects of hunting on genetic diversity, inbreeding and dispersal in Finnish black grouse (Lyrurus tetrix)”. Evolutionary Applications .
Chen, R., Soulsbury, C. D., Lebigre, C., Ludwig, G., van Oers, K., and Hoffman, J. (2022). Effects of hunting on genetic diversity, inbreeding and dispersal in Finnish black grouse (Lyrurus tetrix). Evolutionary Applications .
Chen, R., et al., 2022. Effects of hunting on genetic diversity, inbreeding and dispersal in Finnish black grouse (Lyrurus tetrix). Evolutionary Applications .
R. Chen, et al., “Effects of hunting on genetic diversity, inbreeding and dispersal in Finnish black grouse (Lyrurus tetrix)”, Evolutionary Applications , 2022.
Chen, R., Soulsbury, C.D., Lebigre, C., Ludwig, G., van Oers, K., Hoffman, J.: Effects of hunting on genetic diversity, inbreeding and dispersal in Finnish black grouse (Lyrurus tetrix). Evolutionary Applications . (2022).
Chen, Rebecca, Soulsbury, Carl D., Lebigre, Christophe, Ludwig, Gilbert, van Oers, Kees, and Hoffman, Joseph. “Effects of hunting on genetic diversity, inbreeding and dispersal in Finnish black grouse (Lyrurus tetrix)”. Evolutionary Applications (2022).
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