墨西哥中部凉爽和温暖环境下洞穴肌炎(绒肌炎)热能学的差异

IF 1 4区 生物学 Q3 ZOOLOGY
Kevin I. Medina-Bello, Carmen Lorena Orozco-Lugo, J. Ayala-Berdon
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引用次数: 1

摘要

在不同环境温度(Ta)的生态系统中,恒温恒湿疗法处理维持稳定体温(Tb)的能量成本。作为回应,动物会调整它们的一些热能学,以满足体温调节的能量需求。蝙蝠是小型哺乳动物,其地理分布可能包括具有不同Ta的环境。因此,这些动物应该根据它们生活的栖息地的环境特征来调整它们的热能学。使用开放式呼吸测量法,我们测量了生活在墨西哥中部针叶林和热带落叶林中的洞穴肌炎(myotis velifer(Allen,1890))的基础代谢率(BMR)、热导率(C')、下限和上限临界温度(TLC和TUC)以及热中性区宽度(TNZb)。据我们所知,这是第一次尝试在同时测量的种群中在种内水平上测量热能学。针叶林蝙蝠的BMR、C'、TLC、TUC和TNZb比热带落叶林蝙蝠低。我们在这里发现的结果可能是动物栖息的Ta所施加的能量需求与它们觅食区域的Ta和猎物可用性之间差异的结果。这些差异可能有助于个体调节热量的产生和耗散,以保持其居住场所的低体温调节成本。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Differences in thermal energetics of the cave myotis (Myotis velifer) from a cool and a warm environment of central Mexico
Endotherm homeotherms deal with the energetic cost of maintaining a stable body temperature (Tb) in ecosystems differing in ambient temperature (Ta). In response, animals adjust some of their thermal energetics to meet the energy requirements of thermoregulation. Bats are small mammals with a geographical distribution that may include environments with different Ta. Therefore, these animals should adjust their thermal energetics depending on the environmental characteristics of the habitats where they live. Using open-flow respirometry, we measured basal metabolic rate (BMR), thermal conductance (C’), lower and upper critical temperatures (TLC and TUC), and breadth of the thermoneutral zone (TNZb) of the cave myotis (Myotis velifer (Allen, 1890)) living in a coniferous forest versus a tropical deciduous forest in central Mexico. To our knowledge, this is the first attempt to measure thermal energetics at the intraspecific level in populations measured at the same time. Bats from the coniferous forest had lower BMR, C’, TLC, TUC, and a wider TNZb than bats from the tropical deciduous forest. The results we found here are likely the consequence of the differences between the energy demands imposed by Ta where the animals roost, and the Ta and prey availability of their foraging areas. These differences may help individuals regulate their heat production and dissipation to maintain low thermoregulatory costs in the places they inhabit.
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来源期刊
Canadian Journal of Zoology
Canadian Journal of Zoology 生物-动物学
CiteScore
2.40
自引率
0.00%
发文量
82
审稿时长
3 months
期刊介绍: Published since 1929, the Canadian Journal of Zoology is a monthly journal that reports on primary research contributed by respected international scientists in the broad field of zoology, including behaviour, biochemistry and physiology, developmental biology, ecology, genetics, morphology and ultrastructure, parasitology and pathology, and systematics and evolution. It also invites experts to submit review articles on topics of current interest.
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