干旱区生态环境知识资源中心(Arid): Body mass and cuticular hydrocarbon profiles, but not queen number, underlie worker desiccation resistance in a facultatively polygynous harvester ant (Pogonomyrmex californicus)

Arid

DOI	10.1007/s00360-023-01488-3
	Body mass and cuticular hydrocarbon profiles, but not queen number, underlie worker desiccation resistance in a facultatively polygynous harvester ant (Pogonomyrmex californicus)
	Ostwald, Madeleine M.; Tretter, Sandra; Buellesbach, Jan; Calixto, Juliana M.; Fewell, Jennifer H.; Gadau, Juergen; Baudier, Kaitlin M.
通讯作者	Ostwald, MM
来源期刊	JOURNAL OF COMPARATIVE PHYSIOLOGY B-BIOCHEMICAL SYSTEMS AND ENVIRONMENTAL PHYSIOLOGY
ISSN	0174-1578
EISSN	1432-136X
出版年	2023
卷号	193 期号:3 页码:261-269
英文摘要	As small-bodied terrestrial organisms, insects face severe desiccation risks in arid environments, and these risks are increasing under climate change. Here, we investigate the physiological, chemical, and behavioral mechanisms by which harvester ants, one of the most abundant arid-adapted insect groups, cope with desiccating environmental conditions. We aimed to understand how body size, cuticular hydrocarbon profiles, and queen number impact worker desiccation resistance in the facultatively polygynous harvester ant, Pogonomyrmex californicus. We measured survival at 0% humidity of field-collected worker ants sourced from three closely situated populations within a semi-arid region of southern California. These populations vary in queen number, with one population dominated by multi-queen colonies (primary polygyny), one population dominated by single-queen colonies, and one containing an even mix of single- and multi-queen colonies. We found no effect of population on worker survival in desiccation assays, suggesting that queen number does not influence colony desiccation resistance. Across populations, however, body mass and cuticular hydrocarbon profiles significantly predicted desiccation resistance. Larger-bodied workers survived longer in desiccation assays, emphasizing the importance of reduced surface area-to-volume ratios in maintaining water balance. Additionally, we observed a positive relationship between desiccation resistance and the abundance of n-alkanes, supporting previous work that has linked these high-melting point compounds to improved body water conservation. Together, these results contribute to an emerging model explaining the physiological mechanisms of desiccation resistance in insects.
英文关键词	Pleometrosis Water balance n-alkanes Gas chromatography
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000978572500001
WOS关键词	WATER-BALANCE ; PHENOTYPIC PLASTICITY ; PRECIPITATION CHANGES ; CLIMATE-CHANGE ; INSECTS ; SIZE ; PERMEABILITY ; ASSOCIATIONS ; HYMENOPTERA ; COLONIES
WOS类目	Physiology ; Zoology
WOS研究方向	Physiology ; Zoology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397242
推荐引用方式 GB/T 7714	Ostwald, Madeleine M.,Tretter, Sandra,Buellesbach, Jan,et al. Body mass and cuticular hydrocarbon profiles, but not queen number, underlie worker desiccation resistance in a facultatively polygynous harvester ant (Pogonomyrmex californicus)[J],2023,193(3):261-269.
APA	Ostwald, Madeleine M..,Tretter, Sandra.,Buellesbach, Jan.,Calixto, Juliana M..,Fewell, Jennifer H..,...&Baudier, Kaitlin M..(2023).Body mass and cuticular hydrocarbon profiles, but not queen number, underlie worker desiccation resistance in a facultatively polygynous harvester ant (Pogonomyrmex californicus).JOURNAL OF COMPARATIVE PHYSIOLOGY B-BIOCHEMICAL SYSTEMS AND ENVIRONMENTAL PHYSIOLOGY,193(3),261-269.
MLA	Ostwald, Madeleine M.,et al."Body mass and cuticular hydrocarbon profiles, but not queen number, underlie worker desiccation resistance in a facultatively polygynous harvester ant (Pogonomyrmex californicus)".JOURNAL OF COMPARATIVE PHYSIOLOGY B-BIOCHEMICAL SYSTEMS AND ENVIRONMENTAL PHYSIOLOGY 193.3(2023):261-269.