Search Results - "Spence, Austin R"

Food restriction and chronic stress alter energy use and affect immunity in an infrequent feeder by Lorin A., Neuman-Lee, Fokidis, H. Bobby, Spence, Austin R., Van der Walt, Marilize, Smith, Geoffrey D., Durham, Susan, French, Susannah S.

“…Summary Glucocorticoids are important mediators of energy utilization for key physiological processes, including immune function. Much work has focused on the…”
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Anthropogenic and climatic factors interact to influence reproductive timing and effort by Smith, Geoffrey D., Wilcoxen, Travis E., Hudson, Spencer B., Virgin, Emily E., Durso, Andrew M., Van der Walt, Marilize, Spence, Austin R., Neuman‐Lee, Lorin A., Webb, Alison C., Terletzky, Patricia A., French, Susannah S.

“…Reproduction, although absolutely essential to a species’ persistence, is in itself challenging. As anthropogenic change increasingly affects every landscape…”
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The challenge of novel abiotic conditions for species undergoing climate‐induced range shifts by Spence, Austin R., Tingley, Morgan W.

“…Coincident with recent global warming, species have shifted their geographic distributions to cooler environments, generally by moving along thermal axes to…”
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Anna's hummingbird (Calypte anna) physiological response to novel thermal and hypoxic conditions at high elevations by Spence, Austin R, LeWinter, Hannah, Tingley, Morgan W

“…Many species have not tracked their thermal niches upslope as predicted by climate change, potentially because higher elevations are associated with abiotic…”
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Body size and environment influence both intraspecific and interspecific variation in daily torpor use across hummingbirds by Spence, Austin R., Tingley, Morgan W., Williams, Tony

“…Torpor, or a regulated drop in body temperature and metabolic rate, allows animals to inhabit energetically costly environments, but among torpor‐using…”
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DNA metabarcoding reveals broadly overlapping diets in three sympatric North American hummingbirds by Spence, Austin R, Wilson Rankin, Erin E, Tingley, Morgan W

“…Hummingbirds, a highly diverse avian family, are specialized vertebrate pollinators that feed upon carbohydrate-rich nectar to fuel their fast metabolism while…”
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Widespread Torpor Use in Hummingbirds from the Thermally Stable Lowland Tropics by Pollock, Henry S, Lamont, Daniel, MacDonald, Sean E, Spence, Austin R, Brawn, Jeffrey D, Cheviron, Zachary A

“…AbstractTorpor, the temporary reduction of metabolic rate and body temperature, is a common energy-saving strategy in endotherms. Because of their small body…”
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Elevation Correlates With Significant Changes in Relative Abundance in Hummingbird Fecal Microbiota, but Composition Changes Little by Herder, Elizabeth A., Spence, Austin R., Tingley, Morgan W., Hird, Sarah M.

“…The microbial communities living on and in vertebrate hosts have myriad effects on their hosts, potentially including fitness and speciation. Microbiomes are…”
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Physiological Correlates of Multiple Parasitic Infections in Side-Blotched Lizards by Spence, Austin R., Durso, Andrew M., Smith, Geoffrey D., Skinner, Heather M., French, Susannah S.

“…We investigated the presence of ectoparasites and hemoparasites in side-blotched lizards (Uta stansburiana) across a large part of their range and measured how…”
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Long‐term monitoring of two snake species reveals immune–endocrine interactions and the importance of ecological context by Spence, Austin R., French, Susannah S., Hopkins, Gareth R., Durso, Andrew M., Hudson, Spencer B., Smith, Geoffrey D., Neuman‐Lee, Lorin A.

“…While there is huge promise in monitoring physiological parameters in free‐living organisms, we also find high amounts of variability over time and space. This…”
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Evidence for the efficacy of pre-harvest agricultural practices in mitigating food-safety risks to fresh produce in North America by Devarajan, Naresh, Weller, Daniel L., Jones, Matthew, Adell, Aiko D., Adhikari, Achyut, Allende, Ana, Arnold, Nicole L., Baur, Patrick, Beno, Sarah M., Clements, Donna, Olimpi, Elissa M., Critzer, Faith, Green, Hyatt, Gorski, Lisa, Ferelli Gruber, Angela, Kovac, Jasna, McGarvey, Jeffery, Murphy, Claire M., Murphy, Sarah I., Navarro-Gonzalez, Nora, Owen, Jeb P., Pires, Alda F. A., Richard, Nicole, Samaddar, Sandipan, Schmidt, Radomir, Scow, Kate, Shariat, Nikki W., Smith, Olivia M., Spence, Austin R., Stoeckel, Don, Tran, Thao D. H., Wall, Gretchen, Karp, Daniel S.

“…Consumption of contaminated produce remains a leading cause of foodborne illness. Increasingly, growers are altering agricultural practices and farm…”
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