Publications

blood parasites in rock ptarmigan from eagle summit, alaska.		1967	4965717
glacial vicariance and historical biogeography of rock ptarmigan (lagopus mutus) in the bering region.	in this paper, we address alternative hypotheses for the evolution of subspecies of rock ptarmigan (lagopus mutus) endemic to the aleutian archipelago. to do this we examined patterns of genetic differentiation among populations of rock ptarmigan in the aleutian islands and parts of both alaska and siberia. variation in mitochondrial control region sequences of 105 rock ptarmigan from 10 subspecies within the bering region revealed three major phylogenetic lineages, two of which are endemic to t ...	2000	10972767
bald eagles and sea otters in the aleutian archipelago: indirect effects of trophic cascades.	because sea otters (enhydra lutris) exert a wide array of direct and indirect effects on coastal marine ecosystems throughout their geographic range, we investigated the potential influence of sea otters on the ecology of bald eagles (haliaeetus leucocephalus) in the aleutian islands, alaska, usa. we studied the diets, productivity, and density of breeding bald eagles on four islands during 1993-1994 and 2000-2002, when sea otters were abundant and scarce, respectively. bald eagles depend on nea ...	2008	18959310
herbivores influence the growth, reproduction, and morphology of a widespread arctic willow.	shrubs have expanded in arctic ecosystems over the past century, resulting in significant changes to albedo, ecosystem function, and plant community composition. willow and rock ptarmigan (lagopus lagopus, l. muta) and moose (alces alces) extensively browse arctic shrubs, and may influence their architecture, growth, and reproduction. furthermore, these herbivores may alter forage plants in such a way as to increase the quantity and accessibility of their own food source. we estimated the effect ...	2014	25047582