Physiological Responses to Heat-stress in a Desert Montane Lizard

Physiological Responses to Heat-stress in a Desert Montane Lizard

Bibliographic Details
Main Author: Vazquez, Tyara Kiileialohalani
Language:English
Published: University of Toledo / OhioLINK 2018
Subjects:
Biology
Animals
Climate Change
Ecology
Zoology
desert lizards
performance
heat-shock protein expression
heat-stress
climate change
Online Access:http://rave.ohiolink.edu/etdc/view?acc_num=toledo1544789284098965
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spelling ndltd-OhioLink-oai-etd.ohiolink.edu-toledo15447892840989652021-08-03T07:09:15Z Physiological Responses to Heat-stress in a Desert Montane Lizard Vazquez, Tyara Kiileialohalani Biology Animals Climate Change Ecology Zoology desert lizards performance heat-shock protein expression heat-stress climate change Climate change is increasing global average temperatures, and desert ecosystems are predicted to be particularly vulnerable to the effects of climate change. Desert ectotherms such as reptiles are especially threatened by climate change; however, there is a lack of research on both long-term and acute responses to heat-stress that encompasses multiple levels of physiological performance (i.e. whole-organism and cellular). Here, I measured sprint speed, endurance, water content, and heat-shock protein (HSP70) expression in adult and juvenile Greater short-horned lizards (Phrynosoma hernandesi) from a low- and a high-elevation site. I found that acute heat-stress decreased sprint speed in both adults and juveniles, especially in lizards from the high-elevation site; however, acute heat-stress did not affect endurance, HSP70 expression, or water content. Long-term heat-stress decreased water content but did not affect any other physiological measurements. P. hernandesi adults may have not had detrimental physiological responses to either acute or long-term heat-stress because adults may be able to buffer against extreme temperatures through behavioral thermoregulation; however, juveniles may be more resistant to extreme temperatures because they are likely thermoconformers. More research on multiple levels of physiological performance across different life-stages is needed to broaden our understanding of ectotherms’ capacity to respond to climate change. 2018 English text University of Toledo / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=toledo1544789284098965 http://rave.ohiolink.edu/etdc/view?acc_num=toledo1544789284098965 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.
collection NDLTD
language English
sources NDLTD
topic Biology
Animals
Climate Change
Ecology
Zoology
desert lizards
performance
heat-shock protein expression
heat-stress
climate change
spellingShingle Biology
Animals
Climate Change
Ecology
Zoology
desert lizards
performance
heat-shock protein expression
heat-stress
climate change

Vazquez, Tyara Kiileialohalani
Physiological Responses to Heat-stress in a Desert Montane Lizard
author Vazquez, Tyara Kiileialohalani
author_facet Vazquez, Tyara Kiileialohalani
author_sort Vazquez, Tyara Kiileialohalani
title Physiological Responses to Heat-stress in a Desert Montane Lizard
title_short Physiological Responses to Heat-stress in a Desert Montane Lizard
title_full Physiological Responses to Heat-stress in a Desert Montane Lizard
title_fullStr Physiological Responses to Heat-stress in a Desert Montane Lizard
title_full_unstemmed Physiological Responses to Heat-stress in a Desert Montane Lizard
title_sort physiological responses to heat-stress in a desert montane lizard
publisher University of Toledo / OhioLINK
publishDate 2018
url http://rave.ohiolink.edu/etdc/view?acc_num=toledo1544789284098965
work_keys_str_mv AT vazqueztyarakiileialohalani physiologicalresponsestoheatstressinadesertmontanelizard
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