Geographic Variation in Morphology of Alaska-Breeding Bar-Tailed Godwits (Limosa lapponica) is Not Maintained on their Nonbreeding Grounds in New Zealand

  title={Geographic Variation in Morphology of Alaska-Breeding Bar-Tailed Godwits (Limosa lapponica) is Not Maintained on their Nonbreeding Grounds in New Zealand},
  author={Jesse R Conklin and Phil F. Battley and Murray Alan Potter and Daniel R. Ruthrauff},
ABSTRACT. Among scolopacid shorebirds, Bar-tailed Godwits (Limosa lapponica) have unusually high intra- and intersexual differences in size and breeding plumage. Despite historical evidence for population structure among Alaska-breeding Bar-tailed Godwits (L. l. baueri), no thorough analysis, or comparison with the population's nonbreeding distribution, has been undertaken. We used live captures, field photography, museum specimens, and individuals tracked from New Zealand to describe… 

Contour-feather moult of Bar-tailed Godwits (Limosa lapponica baueri) in New Zealand and the northern hemisphere reveals multiple strategies by sex and breeding region

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Differentiation of subspecies and sexes of Beringian Dunlins using morphometric measures

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Animal Migration

Tracking migration of small (<80g) songbirds has been limited to following small-scale movements using radio-telemetry [e.g., 1] or rare recoveries of banded birds [e.g., 2]. The recent surge in the

No evidence for an association between Clock gene allelic variation and migration timing in a long-distance migratory shorebird (Limosa lapponica baueri)

Allelic variation of the ClkpolyQcds is described in 135 godwits over-wintering in New Zealand and investigated whether polymorphism in this region is associated with northward migration timing (chronophenotype) and on current evidence, Clk polyQCds is not a strong candidate for driving migration timing in migratory birds generally.

Visitation Aspect and Roles of Nakdong River Estuary as Resting Ground for Limosa spp.

Comparison of the visitation aspects of the two periods did not show significant difference between the early 1990s and the mid-2000s, and the individuals observed in the early1990s were greater than those observed inThe mid- 2000s, but statistical analysis showed significant difference among the 5 sites.



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Geographical Variation in Bill Size across Bird Species Provides Evidence for Allen’s Rule

The results provide the strongest comparative support yet published for Allen’s rule and demonstrate that thermoregulation has been an important factor in shaping the evolution of bird bills.