Natal philopatry does not lead to population genetic differentiation in Buller's albatross (Thalassarche bulleri bulleri).
Genetic variability in the only two existing populations of Buller's albatross (Thalassarche bulleri bulleri) was assessed using six polymorphic microsatellite loci. Large biological samples were obtained from both the Snares (n = 99) and the Solander Islands (n = 27). Several measures of genetic differentiation including F(ST) and R(ST) and a principal coordinates analysis (PCO) suggest a complete absence of genetic structure between three breeding colonies on the Snares Islands, and between them and one breeding colony on the Solander Islands. Mark/recapture studies of recently banded albatross chicks on the Snares found high natal philopatry in T. b. bulleri, but the microsatellite DNA data suggest that sufficient gene flow still occurs between all four breeding colonies to maintain a genetically homogeneous population overall.
van Bekkum
Margo
M
Institute for Molecular Systematics, School of Biological Sciences, Victoria University of Wellington, New Zealand. margo.bekkum@wnmeds.ac.nz
Sagar
Paul M
PM
Stahl
Jean-Claude
JC
Chambers
Geoffrey K
GK
D000818:Animals; D001717:Birds / Q000235:genetics / Q000502:physiology*; D017931:DNA Primers; D005787:Gene Frequency; D014644:Genetic Variation; D005828:Genetics, Population; D006702:Homing Behavior / Q000502:physiology*; D018895:Microsatellite Repeats / Q000235:genetics; D009520:New Zealand; D025341:Principal Component Analysis; D017422:Sequence Analysis, DNA
D017931:DNA Primers