Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1098/rspb.2018.0652 |
Testing the heat dissipation limit theory in a breeding passerine | |
Nilsson, Jan-Ake; Nord, Andreas | |
通讯作者 | Nilsson, Jan-Ake |
来源期刊 | PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES |
ISSN | 0962-8452 |
EISSN | 1471-2954 |
出版年 | 2018 |
卷号 | 285期号:1878 |
英文摘要 | The maximum work rate of animals has recently been suggested to be determined by the rate at which excess metabolic heat generated during work can be dissipated (heat dissipation limitation (HDL) theory). As a first step towards testing this theory in wild animals, we experimentally manipulated brood size in breeding marsh tits (Poecile palustris) to change their work rate. Parents feeding nestlings generally operated at above-normal body temperatures. Body temperature in both males and females increased with maximum ambient temperature and with manipulated work rate, sometimes even exceeding 45 degrees C, which is close to suggested lethal levels for birds. Such high body temperatures have previously only been described for birds living in hot and arid regions. Thus, reproductive effort in marsh tits may potentially be limited by the rate of heat dissipation. Females had lower body temperatures, a possible consequence of their brood patch serving as a thermal window facilitating heat dissipation. Because increasing body temperatures are connected to somatic costs, we suggest that the HDL theory may constitute a possible mediator of the trade-off between current and future reproduction. It follows that globally increasing, more stochastic, ambient temperatures may restrict the capacity for sustained work of animals in the future. |
英文关键词 | body temperature heat dissipation hyperthermia maximum work rate parental effort reproductive cost |
类型 | Article |
语种 | 英语 |
国家 | Sweden |
收录类别 | SCI-E |
WOS记录号 | WOS:000432371500027 |
WOS关键词 | SUSTAINED ENERGY-INTAKE ; LABORATORY MICE ; AVIAN THERMOREGULATION ; METABOLIC-RATES ; TROPICAL BIRDS ; CLIMATE-CHANGE ; MUS MUSCULUS ; BROOD SIZE ; BLUE TITS ; STRESS |
WOS类目 | Biology ; Ecology ; Evolutionary Biology |
WOS研究方向 | Life Sciences & Biomedicine - Other Topics ; Environmental Sciences & Ecology ; Evolutionary Biology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/212392 |
作者单位 | Lund Univ, Dept Biol, Sect Evolutionary Ecol, Ecol Bldg, S-22362 Lund, Sweden |
推荐引用方式 GB/T 7714 | Nilsson, Jan-Ake,Nord, Andreas. Testing the heat dissipation limit theory in a breeding passerine[J],2018,285(1878). |
APA | Nilsson, Jan-Ake,&Nord, Andreas.(2018).Testing the heat dissipation limit theory in a breeding passerine.PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,285(1878). |
MLA | Nilsson, Jan-Ake,et al."Testing the heat dissipation limit theory in a breeding passerine".PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES 285.1878(2018). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。