Research Topics
| G J KenagySummaryAffiliation: University of Washington Country: USA Publications
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Detail Information
Publications
Seasonal changes in body mass, insulin, and glucocorticoids of free-living golden-mantled ground squirrelsT Boswell
Department of Zoology, University of Washington, Seattle 98195
Gen Comp Endocrinol 96:339-46. 1994..Cortisol titers gradually decreased over the first half of the active season in both sexes, but later increased to a seasonal maximum at the end of the season, coincident with the peak in body mass.(ABSTRACT TRUNCATED AT 250 WORDS)..
Seasonal changes in plasma glucocorticosteroids of free-living female yellow-pine chipmunks: effects of reproduction and capture and handlingG J Kenagy
Department of Zoology and Burke Museum, University of Washington, Seattle, Washington 98195, USA
Gen Comp Endocrinol 117:189-99. 2000....
Relation of glucocorticosteroids and testosterone to the annual cycle of free-living degus in semiarid central ChileG J Kenagy
Department of Zoology and Burke Museum, University of Washington, Seattle, Washington 98195, USA
Gen Comp Endocrinol 115:236-43. 1999..Peak cortisol titers in both sexes were associated with lactation in females, when energy mobilization, production, and body mass were at their greatest...
Daily rhythms of food intake and feces reingestion in the degu, an herbivorous Chilean rodent: optimizing digestion through coprophagyG J Kenagy
Department of Zoology, University of Washington, Seattle 98195, USA
Physiol Biochem Zool 72:78-86. 1999..The ingestion of feces during parts of the day when food is unavailable provides for continued intake into the digestive tract and appears to represent an increase in overall efficiency of gut use...
Seasonal changes in plasma testosterone and glucocorticosteroids in free-living male yellow-pine chipmunks and the response to capture and handlingN J Place
Department of Zoology and Burke Museum, University of Washington, Seattle 98195 1800, USA
J Comp Physiol B 170:245-51. 2000..The contrasting patterns of seasonal variation in glucocorticosteroid and testosterone levels and the changes induced by capture and handling suggest that when testosterone concentration is high, adrenocortical activity is suppressed...
Nuclear and mitochondrial DNA reveal contrasting evolutionary processes in populations of deer mice (Peromyscus maniculatus)Dou Shuan Yang
Burke Museum and Department of Biology, University of Washington, Seattle, 98195, USA
Mol Ecol 18:5115-25. 2009..We conclude that past vicariant events associated with Pleistocene climate changes together with recent gene flow have created the observed intra-specific cytonuclear discordance in Western North America...
Historical demography and genetic structure of sister species: deermice (Peromyscus) in the North American temperate rain forestXiaoguang Zheng
Burke Museum and Department of Zoology, University of Washington, Seattle 98195, USA
Mol Ecol 12:711-24. 2003..This study demonstrates the utility of these model-based demographic methods in illuminating the evolutionary and biogegographic history of natural systems...
Dietary cholesterol enhances torpor in a rodent hibernatorF Geiser
Department of Zoology, University of Washington, Seattle 98195, USA
J Comp Physiol B 167:416-22. 1997..Since torpor was deeper and longer in animals on the cholesterol diet our study suggests that torpor patterns of chipmunks were either directly affected by the dietary cholesterol or via changes in body lipid composition...
Genetic and phenotypic variation across a hybrid zone between ecologically divergent tree squirrels (Tamiasciurus)Andreas S Chavez
Burke Museum and Department of Biology, University of Washington, Seattle, WA 98195, USA
Mol Ecol 20:3350-66. 2011....
Energy expenditure and testosterone in free-living male yellow-pine chipmunksNed J Place
Department of Zoology and Burke Museum, University of Washington, Seattle, Washington 98195 1800, USA
J Exp Zool 292:460-7. 2002..However, on a seasonal basis, the earlier emergence from hibernation by breeding males, which appears to be influenced by T, represents an overall seasonal energy expenditure that exceeds that of nonbreeding males...
Inefficiency of lactation in primiparous rats: the costs of first reproductionJ Kunkele
Department of Zoology, University of Washington, Seattle 98195, USA
Physiol Zool 70:571-7. 1997....
Genetic structure of desert ground squirrels over a 20-degree-latitude transect from Oregon through the Baja California peninsulaJoshua R Whorley
Burke Museum and Department of Biology, University of Washington, Seattle, USA
Mol Ecol 13:2709-20. 2004..This system, as observed, reflects both historical and contemporary ecological and evolutionary responses to physical environmental gradients within genetically homogeneous populations...
Milk composition of free-living yellow-pine chipmunks (Tamias amoenus): temporal variation during lactationClaudio Veloso
, , Santiago, Chile
Comp Biochem Physiol A Mol Integr Physiol 134:387-92. 2003..The progressive augmentation of milk energy content during lactation contributes to the increased demands of rapid growth in this altricial species...
The degree of dietary fatty acid unsaturation affects torpor patterns and lipid composition of a hibernatorF Geiser
Department of Zoology, University of New England, Armidale, New South Wales, Australia
J Comp Physiol B 164:299-305. 1994..Significant differences among diet groups were also observed for the sum of saturated, unsaturated and polyunsaturated fatty acids.(ABSTRACT TRUNCATED AT 250 WORDS)..
Seasonal glucocorticoid responses to capture in wild free-living mammalsL Michael Romero
Department of Biology, Tufts University, Medford, MA 02155, USA
Am J Physiol Regul Integr Comp Physiol 294:R614-22. 2008....
