Understanding ecophysiological/bioenergetic responses to elevated temperatures is vital to assessing future impacts on amphibian health and demographics. There is, however, a dearth of data concerning thermal influences on the energetics of larval amphibians, including measures of respiration rates which underlie other bioenergetic processes. We therefore measured respiration rates across a range of temperatures (18.3–30°C) in wild-caught larval Cope's Gray Tree Frog (Hyla chrysoscelis), a species widespread throughout the eastern and southeastern United States. Temperature and body size significantly affected respiration rates in a linear fashion. The Q10 calculated across the range of exposure temperatures was 1.72 for absolute respiration rates (mg O2/min) and 1.76 for mass-adjusted rates (mg O2/g min), suggesting less than a doubling of respiration rates over a 10°C increase in temperature. Our data, when considered with the limited data for other amphibians, suggest there are substantial species-specific differences in respiration/bioenergetics. Such ecophysiological information is vital to future considerations of amphibian energy budgets in light of the changing global climate.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.