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Dive into the research topics where Keely R. Corder is active.

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Featured researches published by Keely R. Corder.


The Journal of Experimental Biology | 2016

Annual life-stage regulation of lipid metabolism and storage and association with PPARs in a migrant species: the gray catbird (Dumetella carolinensis).

Keely R. Corder; Kristen J. DeMoranville; David E. Russell; Janice M. Huss; Paul Schaeffer

ABSTRACT The annual cycle of a migrating bird involves metabolically distinct stages of substantial fatty acid storage and periods of increased fatty acid mobilization and utilization, and thus requires a great deal of phenotypic flexibility. Specific mechanisms directing stage transitions of lipid metabolism in migrants are largely unknown. This study characterized the role of the PPARs (peroxisome proliferator-activated receptors) in regulating migratory adiposity of the gray catbird (Dumetella carolinensis). Catbirds increased adipose storage during spring and autumn migration and showed increased rates of basal lipolysis during migration and tropical overwintering. Expression of the PPAR target genes involved in fat uptake and storage, FABPpm and PLIN3, increased during pre-migratory fattening. We found significant correlation between PPARγ and target gene expression in adipose but little evidence that PPARα expression levels drive metabolic regulation in liver during the migratory cycle. Summary: Changes in energetics related to the migratory cycle span organismal, tissue and molecular endpoints, and these seasonal adjustments involve the PPAR family of nuclear receptors and their target genes.


Journal of Ornithology | 2015

Summit metabolic rate exhibits phenotypic flexibility with migration, but not latitude in a neotropical migrant, Parkesia noveboracensis

Keely R. Corder; Paul Schaeffer

AbstractPhysiology–life history interactions suggest that birds living with a fast ‘pace-of-life’ should have higher metabolic capacity to provision higher reproductive activity. Previous work supports this, but does not consider migration. We measured summit metabolism (


General and Comparative Endocrinology | 2018

Conserved transcriptional activity and ligand responsiveness of avian PPARs: Potential role in regulating lipid metabolism in mirgratory birds

Angelica Hamilton; Jennifer Ly; Jasmine R. Robinson; Keely R. Corder; Kristen J. DeMoranville; Paul Schaeffer; Janice M. Huss


Archive | 2014

Heterothermy in Northern Cardinals

Maria C. Komer; Paul Schaeffer; Keely R. Corder

\dot{V}{\text{O}}_{{ 2\;{\text{summit}}}}


Archive | 2015

Energy savings due to the use of shallow body temperature reduction in overwintering

Northern Cardinals; Paul Schaeffer; Maria C. Komer; Keely R. Corder


Animal Biotelemetry | 2015

Energy savings due to the use of shallow body temperature reduction in overwintering Northern Cardinals

Paul Schaeffer; Maria C. Komer; Keely R. Corder

V˙O2summit) in Northern Waterthrush (Parkesia noveboracensis) while wintering in the Republic of Panama, migrating northwards through eastern North America, and while breeding in northeastern North America.


The FASEB Journal | 2014

Thermoregulatory plasticity in Northern Cardinals (1100.13)

Maria C. Komer; Keely R. Corder; Paul Schaeffer


The FASEB Journal | 2014

Characterization of muscle plasticity in a neotropical migrant, Dumetella carolinesis (gray catbird) (878.2)

Kristen J. DeMoranville; Keely R. Corder; Dave Russell; Janice M. Huss; Paul Schaeffer

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The FASEB Journal | 2014

Regulation of avian PPAR activity by dietary fatty acids (1101.11)

Angelica Hamilton; Jennifer Ly; Keely R. Corder; Paul Schaeffer; Janice M. Huss


The FASEB Journal | 2014

Molecular regulation of adiposity in a migrant, the gray catbird (1100.1)

Keely R. Corder; David E. Russell; Janice M. Huss; Paul Schaeffer

V˙O2summit is similar between breeding and overwintering (non-migratory) and is significantly elevated in migration. These data suggest that migration is a driver of phenotypic flexibility in these birds and that migration, like winter survival, may be an important determinant of connections between life history and physiology.ZusammenfassungBeim Uferwaldsänger, Parkesia noveboracensis, einem neotropischen Zugvogel, zeigen Stoffwechsel-Spitzenwerte phänotypisch Flexibilität bei Ortswechseln, aber nicht hinsichtlich der geographischen Breite Die Wechselwirkungen zwischen Physiologie und Lebensweise legen die Vermutung nahe, dass Vögel mit ihrem sehr hohen Lebenstempo bei ihren intensiven Fortpflanzungsaktivitäten auch eine höhere Stoffwechselkapazität haben müssten. Frühere Untersuchungen unterstützen diese Annahme, haben aber die Vogelwanderungen nie berücksichtigt. Wir maßen die Stoffwechsel-Spitzen beim Uferwaldsänger (Parkesia noveboracensis) während seiner Überwinterung in der Republik Panama, während seiner Wanderung nach Norden durch das östliche Nordamerika und während seiner Brutperiode in Nordostamerika. Der Stoffwechsel während der Überwinterung ist dem in der Brutzeit ähnlich, während des Zugs aber signifikant erhöht. Die Ergebnisse legen nahe, dass der Vogelzug ein Treiber für die phänotypische Flexibilität dieser Vögel ist und dass der Zug, wie auch das Überleben im Winter, ein wichtiger, ausschlaggebender Faktor in der Wechselbeziehung von Lebensweise und Physiologie der Vögel sein könnte.

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Janice M. Huss

Beckman Research Institute

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Angelica Hamilton

City of Hope National Medical Center

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Jennifer Ly

City of Hope National Medical Center

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Jasmine R. Robinson

City of Hope National Medical Center

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