The role of swarming sites for maintaining gene flow in the brown long-eared bat (Plecotus auritus)

Heredity
M VeithA Seitz

Abstract

Bat-swarming sites where thousands of individuals meet in late summer were recently proposed as 'hot spots' for gene flow among populations. If, due to female philopatry, nursery colonies are genetically differentiated, and if males and females of different colonies meet at swarming sites, then we would expect lower differentiation of maternally inherited genetic markers among swarming sites and higher genetic diversity within. To test these predictions, we compared genetic variance from three swarming sites to 14 nursery colonies. We analysed biparentally (five nuclear and one sex-linked microsatellite loci) and maternally (mitochondrial D-loop, 550 bp) inherited molecular markers. Three mtDNA D-loop haplolineages that were strictly separated at nursery colonies were mixed at swarming sites. As predicted by the 'extra colony-mating hypothesis', genetic variance among swarming sites (V(ST)) for the D-loop drastically decreased compared to the nursery population genetic variance (V(PT)) (31 and 60%, respectively), and genetic diversity increased at swarming sites. Relatedness was significant at nursery colonies but not at swarming sites, and colony relatedness of juveniles to females was positive but not so to males. This sugges...Continue Reading

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Citations

Jun 6, 2009·The Journal of Heredity·Maria João Ramos PereiraJorge M Palmeirim
Nov 8, 2005·Proceedings. Biological Sciences·Paula SeniorJohn D Altringham
Jan 10, 2013·PloS One·Wiesław BogdanowiczAnna Tereba
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Dec 24, 2017·BMC Veterinary Research·Francesca RizzoMaria Lucia Mandola
Jul 23, 2019·PloS One·Jan CichockiGrzegorz Gabryś
Jan 9, 2019·Ecology and Evolution·Tommy AndriolloManuel Ruedi
Jul 7, 2020·EFSA Journal·UNKNOWN EFSA Panel on Plant Protection Products and their Residues (PPR)Christopher Topping
Feb 8, 2021·The Journal of Animal Ecology·Kate E LangwigJoseph R Hoyt

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