干旱区生态环境知识资源中心(Arid): Heat stress survival and thermal tolerance of Australian stingless bees

Arid

DOI	10.1016/j.jtherbio.2023.103671
	Heat stress survival and thermal tolerance of Australian stingless bees
	Nacko, Scott; Hall, Mark A.; Gloag, Rosalyn; Lynch, Kate E.; Spooner-Hart, Robert N.; Cook, James M.; Riegler, Markus
通讯作者	Nacko, S
来源期刊	JOURNAL OF THERMAL BIOLOGY
ISSN	0306-4565
EISSN	1879-0992
出版年	2023
卷号	117
英文摘要	Stingless bees (Meliponini) are important pollinators throughout the world's tropical and subtropical regions. Understanding their thermal tolerance is key to predicting their resilience to changing climates and increasingly frequent extreme heat events. We examined critical thermal maxima (CTmax), survival during 1-8 h heat periods, chill coma recovery and thermal preference for Australian meliponine species that occupy different climates across their ranges: Tetragonula carbonaria (tropical to temperate regions), T. hockingsi (tropical and subtropical regions only) and Austroplebeia australis (widely distributed including arid regions). We found interspecific differences in thermal tolerance consistent with differences in the climate variability observed in each species' range. Foragers of A. australis had a faster chill coma recovery (288 s) than foragers of T. hockingsi (1059 s) and T. carbonaria (872 s). Austroplebeia australis also had the highest CTmax of 44.5 degrees C, while the CTmax of the two Tetragonula species was similar to 43.1 degrees C. After a 1-h heat exposure, T. carbonaria foragers experienced 95% mortality at 42 degrees C, and 100% at 45 degrees C. Surprisingly, larvae and pupae of both Tetragonula species were more resistant to heat exposure than foragers. Within an enclosed temperature gradient apparatus (17-38 degrees C), no clear preference was found for foragers; however, they were most frequently observed at similar to 18 degrees C. Results indicate that in some regions of Australia, meliponines already experience periodic heat events exceeding their thermal maxima. Employing effective management strategies (such as nest site insulation and habitat preservation) may be crucial to colony survival under continued climate change.
英文关键词	Austroplebeia Chill coma Critical thermal maxima Meliponini Stingless bee Tetragonula Thermal biology
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:001078596300001
WOS关键词	HYMENOPTERA ; TEMPERATURE ; PREFERENCE ; RESPONSES ; LIMITS ; THERMOREGULATION ; VULNERABILITY ; POLLINATORS ; ENVIRONMENT ; LANDSCAPES
WOS类目	Biology ; Zoology
WOS研究方向	Life Sciences & Biomedicine - Other Topics ; Zoology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397596
推荐引用方式 GB/T 7714	Nacko, Scott,Hall, Mark A.,Gloag, Rosalyn,et al. Heat stress survival and thermal tolerance of Australian stingless bees[J],2023,117.
APA	Nacko, Scott.,Hall, Mark A..,Gloag, Rosalyn.,Lynch, Kate E..,Spooner-Hart, Robert N..,...&Riegler, Markus.(2023).Heat stress survival and thermal tolerance of Australian stingless bees.JOURNAL OF THERMAL BIOLOGY,117.
MLA	Nacko, Scott,et al."Heat stress survival and thermal tolerance of Australian stingless bees".JOURNAL OF THERMAL BIOLOGY 117(2023).