دورية أكاديمية
Canopy coverage, light, and moisture affect thermoregulatory trade-offs in an amphibian breeding habitat.
| العنوان: | Canopy coverage, light, and moisture affect thermoregulatory trade-offs in an amphibian breeding habitat. |
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| المؤلفون: | Spranger RR; Department of Ecology and Evolutionary Biology, University of California, 1156 High St, Santa Cruz, CA, 95064, USA. Electronic address: rsprange@ucsc.edu., Raffel TR; Department of Biological Sciences, Oakland University, 2200 N Squirrel Rd, Rochester Hills, MI, 48309, USA. Electronic address: raffel@oakland.edu., Sinervo BR; Department of Ecology and Evolutionary Biology, University of California, 1156 High St, Santa Cruz, CA, 95064, USA. |
| المصدر: | Journal of thermal biology [J Therm Biol] 2024 May; Vol. 122, pp. 103864. Date of Electronic Publication: 2024 May 06. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Pergamon Press Country of Publication: England NLM ID: 7600115 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 0306-4565 (Print) Linking ISSN: 03064565 NLM ISO Abbreviation: J Therm Biol Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Oxford, New York, Pergamon Press. |
| مواضيع طبية MeSH: | Body Temperature Regulation* , Ecosystem*, Animals ; Ranidae/physiology ; Water Loss, Insensible ; Temperature ; Models, Biological |
| مستخلص: | When amphibians thermoregulate, they face a fundamental trade-off between the ability to maintain activity and an increased rate of dehydration at higher temperatures. Canopy coverage affects both the thermal and hydric conditions of the environment and can therefore influence amphibian thermoregulation. Frogs require proper conditions to thermoregulate to successfully grow, survive, and reproduce. But while we know how canopy and environmental variables typically affect operative temperature, less is known about effects on amphibian water loss rates. In this study, we measure the effect of canopy coverage on the conditions available for thermoregulation at a breeding pond of the California red-legged frog, Rana draytonii. We use agar frog models to estimate the thermal and hydric capacities frogs would experience in locations with different canopy coverage and microhabitats. At each site, we deployed models under four microhabitat treatments: wet/sun, wet/shade, dry/sun, and dry/shade. We modeled how environmental variables affected operative temperature and evaporative water loss from agar frogs. We found positive effects of air temperature, the sun treatment, and reduced canopy cover on operative temperature, and negative direct or indirect effects of these variables on evaporative water loss, consistent with the hypothesized trade-off between thermoregulatory behavior to increase temperature and the increased desiccation risk due to higher water loss. Additionally, our results indicate that the availability of wet microhabitats can allow frogs to reduce water loss, potentially mitigating the risk of desiccation when thermoregulating to achieve higher operative temperatures. Our findings suggest, that with access to proper microhabitats, amphibians can mitigate the fundamental trade-off and receive benefits of thermoregulating at high temperatures. Competing Interests: Declaration of competing interest None (Copyright © 2024 The Authors. Published by Elsevier Ltd.. All rights reserved.) |
| فهرسة مساهمة: | Keywords: Canopy coverage; Canopy management; Evaporative water loss; Microhabitats; Operative temperature; Thermoregulation |
| تواريخ الأحداث: | Date Created: 20240609 Date Completed: 20240617 Latest Revision: 20240617 |
| رمز التحديث: | 20240618 |
| DOI: | 10.1016/j.jtherbio.2024.103864 |
| PMID: | 38852487 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 0306-4565 |
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| DOI: | 10.1016/j.jtherbio.2024.103864 |