气候变化领域集成服务门户(CCPortal): Heatwaves increase larval mortality and delay development of a solitary bee

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DOI	10.1111/een.13317
	Heatwaves increase larval mortality and delay development of a solitary bee
	Melone, Grace G.; Stuligross, Clara; Williams, Neal M.
发表日期	2024
ISSN	0307-6946
EISSN	1365-2311
起始页码	49
结束页码	3
卷号	49 期号:3
英文摘要	Heatwaves are expected to increase in frequency, intensity and duration due to climate change. For organisms like insects with discrete development, sensitivity may differ among life stages. Thermal sensitivity is of particular concern for species like bees that provide critical ecosystem services. Although social bees moderate nest temperatures through worker behaviour, solitary bees do not thermoregulate their nests, making immobile developing offspring especially vulnerable to such extreme events. We studied the effects of heatwaves on larval development in the solitary bee, Osmia lignaria, an important orchard pollinator and model species for solitary bee biology. We used a factorial design to assess the impacts of heatwave temperature and duration on larval mortality and development rate. Larvae were exposed to heatwaves under realistic diel temperature regimes, with daytime maxima of 31 or 37 degrees C for 4 or 7 days at the beginning of development. Heatwave temperature strongly affected larval mortality. Exposure to 37 degrees C heatwaves increased larval mortality by 130%, but the cooler 31 degrees C heatwaves did not significantly impact mortality. Heatwave duration did not impact larval mortality. Larval development time also was affected by heatwave exposure. Compared with the no-heatwave-control, bees in the 31 degrees C heatwave developed faster, and bees in the 37 degrees C heatwave developed slower. Our study reveals the importance of stage-specific effects of extreme events and suggests that the timing and maximum temperature of projected heatwaves may be more detrimental to populations than heatwave duration. We used a factorial design to examine the impact of heatwave temperature and duration on solitary bee larval development and survival. Heatwave temperature, but not duration decreased larval survival and delayed development. High-temperature heatwaves increased mortality and slowed development, compared to both the moderate-temperature heatwaves and control treatments. Our study reveals that field-realistic heatwaves can dramatically increase larval mortality, demonstrating the importance of understanding heat stress effects across life stages to sustain bee populations under climate change. image
英文关键词	bees; climate change; ecophysiology; heatwave; insect ecology; larval development; thermal biology
语种	英语
WOS研究方向	Entomology
WOS类目	Entomology
WOS记录号	WOS:001159585800001
来源期刊	ECOLOGICAL ENTOMOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/309568
作者单位	University of California System; University of California Davis; University of Wisconsin System; University of Wisconsin Madison; University of California System; University of California Davis; University of California System; University of California Riverside
推荐引用方式 GB/T 7714	Melone, Grace G.,Stuligross, Clara,Williams, Neal M.. Heatwaves increase larval mortality and delay development of a solitary bee[J],2024,49(3).
APA	Melone, Grace G.,Stuligross, Clara,&Williams, Neal M..(2024).Heatwaves increase larval mortality and delay development of a solitary bee.ECOLOGICAL ENTOMOLOGY,49(3).
MLA	Melone, Grace G.,et al."Heatwaves increase larval mortality and delay development of a solitary bee".ECOLOGICAL ENTOMOLOGY 49.3(2024).