干旱区生态环境知识资源中心(Arid): The impact of temperature on the life cycle of Gasterophilus pecorum in northwest China

Arid

DOI	10.1186/s13071-021-04623-7
	The impact of temperature on the life cycle of Gasterophilus pecorum in northwest China
	Zhang, Ke; Huang, Heqing; Zhou, Ran; Zhang, Boru; Wang, Chen; Ente, Make; Li, Boling; Zhang, Dong; Li, Kai
通讯作者	Li, K (corresponding author), Beijing Forestry Univ, Sch Ecol & Nat Conservat, Key Lab Noninvas Res Technol Endangered Species, Beijing 100083, Peoples R China.
来源期刊	PARASITES & VECTORS
ISSN	1756-3305
出版年	2021
卷号	14 期号:1
英文摘要	BackgroundThe departure of the mature larvae of the horse stomach bot fly from the host indicates the beginning of a new infection period. Gasterophilus pecorum is the dominant bot fly species in the desert steppe of the Kalamaili Nature Reserve (KNR) of northwest China as a result of its particular biological characteristics. The population dynamics of G. pecorum were studied to elucidate the population development of this species in the arid desert steppe.MethodsLarvae in the freshly excreted feces of tracked Przewalski's horses (Equus przewalskii) were collected and recorded. The larval pupation experiments were carried out under natural conditions.ResultsThere was a positive correlation between the survival rate and the number of larvae expelled (r=0.630, p<0.01); the correlation indicated that the species had characteristic peaks of occurrence. The main periods during which mature larvae were expelled in the feces were from early April to early May (peak I) and from mid-August to early September (peak II); the larval population curve showed a sudden increase and gradual decrease at both peaks. Under the higher temperatures of peak II, the adults developing from the larvae had a higher survival rate, higher pupation rate, higher emergence rate and shorter eclosion period than those developing from peak I larvae. Although G. pecorum has only one generation per year, its occurrence peaked twice annually, i.e. the studied population has a bimodal distribution, which doubles parasitic pressure on the local host. This phenomenon is very rarely recorded in studies on insect life history, and especially in those on parasite epidemiology.ConclusionThe period during which G. pecorum larvae are naturally expelled from the host exceeds 7 months in KNR, which indicates that there is potentially a long period during which hosts can become infected with this parasite. The phenomenon of two annual peaks of larvae expelled in feces is important as it provides one explanation for the high rate of equine myiasis in KNR. S
英文关键词	Desert steppe Gasterophilus pecorum Mature larvae Population dynamics Bimodal population Survival rate
类型	Article
语种	英语
开放获取类型	Green Submitted, Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000625396800003
WOS类目	Parasitology ; Tropical Medicine
WOS研究方向	Parasitology ; Tropical Medicine
来源机构	北京林业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351286
作者单位	[Zhang, Ke; Zhou, Ran; Zhang, Dong; Li, Kai] Beijing Forestry Univ, Sch Ecol & Nat Conservat, Key Lab Noninvas Res Technol Endangered Species, Beijing 100083, Peoples R China; [Huang, Heqing] Chongqing Acad Environmen Sci, Chongqing 401147, Peoples R China; [Zhang, Boru] Qinhuangdao Forestry Bur, Qinhuangdao 066004, Hebei, Peoples R China; [Wang, Chen] Mt Kalamaili Ungulate Nat Reserve, Changji 381100, Xinjiang, Peoples R China; [Ente, Make] Xinjiang Res Ctr Breeding Prze Walskis Horse, Urumqi 831700, Xinjiang, Peoples R China; [Li, Boling] China Natl Environm Monitoring Ctr, Beijing 100012, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Ke,Huang, Heqing,Zhou, Ran,et al. The impact of temperature on the life cycle of Gasterophilus pecorum in northwest China[J]. 北京林业大学,2021,14(1).
APA	Zhang, Ke.,Huang, Heqing.,Zhou, Ran.,Zhang, Boru.,Wang, Chen.,...&Li, Kai.(2021).The impact of temperature on the life cycle of Gasterophilus pecorum in northwest China.PARASITES & VECTORS,14(1).
MLA	Zhang, Ke,et al."The impact of temperature on the life cycle of Gasterophilus pecorum in northwest China".PARASITES & VECTORS 14.1(2021).