干旱区生态环境知识资源中心(Arid): Behavioural and physiological responses to thermal stress in a social spider

Arid

DOI	10.1111/1365-2435.13921
	Behavioural and physiological responses to thermal stress in a social spider
	Malmos, Kirsten Gade; Ludeking, Andreas Husted; Vosegaard, Thomas; Aagaard, Anne; Bechsgaard, Jesper; Sorensen, Jesper Givskov; Bilde, Trine
通讯作者	Bilde, T (corresponding author), Aarhus Univ, Dept Biol, Aarhus C, Denmark.
来源期刊	FUNCTIONAL ECOLOGY
ISSN	0269-8463
EISSN	1365-2435
出版年	2021
英文摘要	1. Temperature is one of the primary environmental drivers of the distribution of species, and particularly high temperatures challenge physiological processes by disruption of cellular homoeostasis. This exerts selection on organisms to maintain cellular homoeostasis by adaptive physiological and/or behavioural responses. 2. The social spider Stegodyphus dumicola occurs across several climate zones in Southern Africa, and populations experience high and variable temperatures, suggesting a wide temperature niche, or alternatively that populations respond with plastic or locally adapted responses to temperature. Using a common garden design, we investigated complementary adaptive heat responses (behavioural thermoregulation and cuticle wax composition) in individuals from warmer and cooler locations. 3. The spiders exhibited higher temperature tolerance than most ectotherms (CTmax almost 49 degrees C), with the individuals from warmer locations showing the highest tolerance. Analyses of cuticle wax revealed chemical compositions consistent with a higher melting temperature (e.g. increased chain length and lower occurrence of branching) and therefore improved waterproofing in spiders originating from warmer locations and acclimated at a higher temperature, as expected if local temperature drives changes in the cuticle composition to improve waterproofing. 4. The spiders exhibited a clear behavioural escape response from increasing temperature, with individuals from warmer locations and kept at higher acclimation temperature showing a lower threshold temperature at which this behaviour was triggered, suggesting that this threshold is under natural selection. 5. Our study provides evidence of both local adaptation and phenotypic plasticity in physiological and behavioural traits relating to temperature tolerance. Population differences in trait expression suggest local adaptation to different thermal environments, and individuals plastically adjust cuticle wax composition and cooling behaviour in response to temperature changes. 6. The Bogert effect predicts that behavioural thermoregulation may relax selection for physiological adaptations. Our study instead suggests that synergistic of both physiological arid behavioural adaptive traits shape the thermal biology of species. 7. Local adaptation allows existence across different climate zones. Additionally, plasticity in behavioural and physiological traits enables rapid responses to short- term temperature fluctuations within a thermal niche. We show that adaptive and plastic responses act in concert to shape the thermal biology and distribution of species.
英文关键词	acclimation adaptive responses to temperature variation arthropod behavioural thermoregulation cuticle wax composition NMR analyses Stegodyphus lineatus temperature adaptation
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000702892800001
WOS关键词	INSECT CUTICULAR HYDROCARBONS ; THERMOREGULATORY BEHAVIOR ; PHYSICAL-PROPERTIES ; LIPID-COMPOSITION ; TEMPERATURE ; DROSOPHILA ; ADAPTATION ; WATER ; PERMEABILITY ; PLASTICITY
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363366
作者单位	[Malmos, Kirsten Gade; Vosegaard, Thomas] Aarhus Univ, Interdisciplinary Nano Sci Ctr iNANO, Aarhus C, Denmark; [Ludeking, Andreas Husted; Aagaard, Anne; Bechsgaard, Jesper; Sorensen, Jesper Givskov; Bilde, Trine] Aarhus Univ, Dept Biol, Aarhus C, Denmark; [Vosegaard, Thomas] Aarhus Univ, Dept Chem, Aarhus C, Denmark
推荐引用方式 GB/T 7714	Malmos, Kirsten Gade,Ludeking, Andreas Husted,Vosegaard, Thomas,et al. Behavioural and physiological responses to thermal stress in a social spider[J],2021.
APA	Malmos, Kirsten Gade.,Ludeking, Andreas Husted.,Vosegaard, Thomas.,Aagaard, Anne.,Bechsgaard, Jesper.,...&Bilde, Trine.(2021).Behavioural and physiological responses to thermal stress in a social spider.FUNCTIONAL ECOLOGY.
MLA	Malmos, Kirsten Gade,et al."Behavioural and physiological responses to thermal stress in a social spider".FUNCTIONAL ECOLOGY (2021).