Heart rate biologging as a tool to understand the energetic needs of life history states.

IF 2.5 3区环境科学与生态学 Q2 BIODIVERSITY CONSERVATION

Conservation Physiology Pub Date : 2026-09-28 eCollection Date: 2026-01-01 DOI:10.1093/conphys/coag072

Clare Stawski, Fritz Geiser, Gerhard Körtner, Shannon Currie

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引用次数: 0

Abstract

Energy is vital for life, and the energetic needs of an organism can be quantified via its metabolic rate, for which measurements have traditionally been restricted to the laboratory. Alternatively, heart rate has been shown to be an excellent predictor of metabolic rate under laboratory conditions and can provide long-term measurements from free-ranging individuals at fine temporal resolution. We quantified the relationship between metabolic rate, heart rate and body temperature of a small arboreal marsupial, Krefft's glider (Petaurus notatus; ~125 g) and how their energetic needs are affected by reproductive condition. Gliders were housed in a large outdoor aviary that experienced natural weather variations. We measured heart rate and body temperature continuously with internal implanted data loggers, and metabolic rates were intermittently measured in a laboratory with open flow respirometry. In addition to establishing a positive curvilinear relationship between heart rate and metabolic rate, these data were also used to calculate daily energy expenditure while gliders were in the outdoor aviaries. Daily energy expenditure decreased from winter to spring, indicating a strong seasonal influence, which likely resulted in lactating females utilizing less energy during spring than gestating females during winter. Understanding the energetic requirements of species under different life history states is vital for understanding their ecology and ultimately conservation management.

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心率生物学作为一种工具来理解生命史状态的能量需求。

能量对生命至关重要，生物体的能量需求可以通过代谢率来量化，而代谢率的测量传统上仅限于实验室。另外，在实验室条件下，心率已被证明是代谢率的一个很好的预测指标，可以提供自由放养的个体在精细时间分辨率下的长期测量。我们量化了一种小型树栖有袋动物Krefft’s glider （Petaurus notatus; ~125 g）的代谢率、心率和体温之间的关系，以及它们的能量需求如何受到生殖条件的影响。滑翔机被安置在一个巨大的户外鸟舍里，经历了自然天气的变化。我们用内部植入的数据记录仪连续测量心率和体温，并在实验室中用开放流量呼吸法间歇测量代谢率。除了建立心率和代谢率之间的正曲线关系外，这些数据还用于计算滑翔机在室外鸟舍时的每日能量消耗。从冬季到春季，每日能量消耗减少，表明季节性影响强烈，这可能导致春季哺乳期雌性比冬季妊娠期雌性消耗更少的能量。了解物种在不同生活史状态下的能量需求，对于了解其生态学和最终的保护管理至关重要。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Conservation Physiology Environmental Science-Management, Monitoring, Policy and Law

CiteScore

5.10

自引率

3.70%

发文量

审稿时长

11 weeks

期刊介绍： Conservation Physiology is an online only, fully open access journal published on behalf of the Society for Experimental Biology. Biodiversity across the globe faces a growing number of threats associated with human activities. Conservation Physiology will publish research on all taxa (microbes, plants and animals) focused on understanding and predicting how organisms, populations, ecosystems and natural resources respond to environmental change and stressors. Physiology is considered in the broadest possible terms to include functional and mechanistic responses at all scales. We also welcome research towards developing and refining strategies to rebuild populations, restore ecosystems, inform conservation policy, and manage living resources. We define conservation physiology broadly and encourage potential authors to contact the editorial team if they have any questions regarding the remit of the journal.