干旱区生态环境知识资源中心(Arid): Big in the tropics-Are there thermal advantages of large body size for carpenter bees in hot climates?

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DOI	10.1111/een.13230
	Big in the tropics-Are there thermal advantages of large body size for carpenter bees in hot climates?
	Harano, Ken-ichi; Hrncir, Michael
通讯作者	Harano, KI
来源期刊	ECOLOGICAL ENTOMOLOGY
ISSN	0307-6946
EISSN	1365-2311
出版年	2023
卷号	48 期号:3 页码:358-370
英文摘要	Large body size is a major advantage for flying insects living in cold climates. Size-related metabolic heat production allows them to maintain their body temperature high enough for flight even at low ambient temperatures. Due to an elevated risk of overheating, however, large body size should be a disadvantage in hot climates. The present study asked whether large body size may provide a thermal benefit for bees even in tropical environments. To answer this question, we observed the foraging behaviour of two different-sized carpenter bee species at flowers of Allamanda sp. in the hot semi-arid region of Brazil. The larger species (Xylocopa frontalis) visited flowers preferentially earlier in the morning and at lower ambient temperatures than the smaller species (X. cearensis). Prior to the foraging peak of X. cearensis, nectar was more abundant in the flowers, which certainly increased the foraging success by X. frontalis. Under cool conditions, moreover, the large species harvested nectar more rapidly than the small species. A thermographic survey revealed that individuals of X. frontalis had higher thoracic temperatures than X. cearensis at the same ambient temperature, and that flower handling became faster with increasing thoracic temperature. These results clearly demonstrate that high thoracic temperatures associated with large body size are an advantage for big bees in hot environments, particularly early in the morning, since they allow an early foraging onset and lead to an increased nectar-collecting efficiency.
英文关键词	body size body temperature foraging solitary bees thermoregulation
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000937257000001
WOS关键词	TEMPERATURE REGULATION ; ACTIVITY PATTERNS ; FLIGHT-MUSCLE ; XYLOCOPA ; THERMOREGULATION ; NECTAR ; HYMENOPTERA ; PERFORMANCE ; POLLINATION ; ENVIRONMENT
WOS类目	Entomology
WOS研究方向	Entomology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395909
推荐引用方式 GB/T 7714	Harano, Ken-ichi,Hrncir, Michael. Big in the tropics-Are there thermal advantages of large body size for carpenter bees in hot climates?[J],2023,48(3):358-370.
APA	Harano, Ken-ichi,&Hrncir, Michael.(2023).Big in the tropics-Are there thermal advantages of large body size for carpenter bees in hot climates?.ECOLOGICAL ENTOMOLOGY,48(3),358-370.
MLA	Harano, Ken-ichi,et al."Big in the tropics-Are there thermal advantages of large body size for carpenter bees in hot climates?".ECOLOGICAL ENTOMOLOGY 48.3(2023):358-370.