Population Genetic Structure Within and among Seasonal Site Types in the Little Brown Bat (Myotis lucifugus) and the Northern Long-Eared Bat (M. septentrionalis).
During late summer and early autumn, temperate bats migrate from their summering sites to swarming sites, where mating likely occurs. However, the extent to which individuals of a single summering site migrate to the same swarming site, and vice versa, is not known. We examined the migratory connectivity between summering and swarming sites in two temperate, North American, bat species, the little brown bat (Myotis lucifugus) and the northern long-eared bat (Myotis septentrionalis). Using mitochondrial and microsatellite DNA markers, we examined population structuring within and among summering and swarming sites. Both species exhibited moderate degrees of mitochondrial DNA differentiation (little brown bat: FST(SUMMER) = 0.093, FST(SWARMING) = 0.052; northern long-eared bat: FST(SUMMER) = 0.117, FST(SWARMING) = 0.043) and little microsatellite DNA differentiation among summering and among swarming sites[corrected]. Haplotype diversity was significantly higher at swarming sites than summering sites, supporting the idea that swarming sites are comprised of individuals from various summering sites. Further, pairwise analyses suggest that swarming sites are not necessarily comprised of only individuals from the most proximal summering colonies.
Biology Department, Saint Mary's University, Halifax, Nova Scotia, Canada.
Laura N L
LN
Johnson
Biology Department, Saint Mary's University, Halifax, Nova Scotia, Canada; Nova Scotia Museum of Natural History, Halifax, Nova Scotia, Canada.
Brenna A
BA
McLeod
Biology Department, Dalhousie University, Halifax, Nova Scotia, Canada.
Lynne E
LE
Burns
Biology Department, Saint Mary's University, Halifax, Nova Scotia, Canada.
Krista
K
Arseneault
Biology Department, Saint Mary's University, Halifax, Nova Scotia, Canada.
Timothy R
TR
Frasier
Biology Department, Saint Mary's University, Halifax, Nova Scotia, Canada.
Hugh G
HG
Broders
D025041:Animal Migration / Q000502:physiology*; D000818:Animals; D002685:Chiroptera / Q000235:genetics*; D004272:DNA, Mitochondrial / Q000235:genetics; D005260:Female; D005819:Genetic Markers / Q000235:genetics*; D014644:Genetic Variation / Q000235:genetics; D005828:Genetics, Population; D005843:Geography; D006239:Haplotypes / Q000235:genetics; D008297:Male; D018895:Microsatellite Repeats / Q000235:genetics*; D008928:Mitochondria / Q000235:genetics*; D008969:Molecular Sequence Data; D012621:Seasons
D004272:DNA, Mitochondrial; D005819:Genetic Markers