Field Evidence of Mosquito Population Regulation by a Gregarine Parasite
Field Evidence of Mosquito Population Regulation by a Gregarine Parasite
复制标题
格雷加林寄生虫调节蚊子数量的现场证据
DOI:
10.1093/jme/tjab009
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发表时间:
2021
影响因子:
2.1
通讯作者:
Livdahl, Todd
中科院分区:
文献类型:
--
作者:
Soghigian, John;Livdahl, Todd
Although parasites are by definition costly to their host, demonstrating that a parasite is regulating its host abundance in the field can be difficult. Here we present an example of a gregarine parasite,Ascogregarina taiwanensisLien and Levine (Apicomplexa: Lecudinidae), regulating its mosquito host,Aedes albopictusSkuse (Diptera: Culicidae), in Bermuda. We sampled larvae from container habitats over 2 yr, assessed parasite prevalence, and estimated host abundance from egg counts obtained in neighboring ovitraps. We regressed change in average egg count from 1 yr to the next on parasite prevalence and found a significant negative effect of parasite prevalence. We found no evidence of host density affecting parasite prevalence. Our results demonstrate that even for a parasite with moderate virulence, host regulation can occur in the field.
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