气候变化领域集成服务门户(CCPortal): Biological control of Gonipterus: Uncovering the associations between eucalypts, weevils and parasitoids in their native range

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DOI	10.1016/j.foreco.2019.04.004
	Biological control of Gonipterus: Uncovering the associations between eucalypts, weevils and parasitoids in their native range
	Garcia A.; Allen G.R.; Oberprieler R.G.; Ramos A.P.; Valente C.; Reis A.; Franco J.C.; Branco M.
发表日期	2019
ISSN	0378-1127
起始页码	106
结束页码	116
卷号	443
英文摘要	The study was initiated by the relative failure of the parasitoid Anaphes nitens in controlling the eucalypt weevil Gonipterus platensis on the Iberian Peninsula. Our aim was to gain insight into the community of Gonipterus egg parasitoids occurring in Tasmania. During surveys in 2016 and 2017, adult weevils and egg pods were collected from Eucalyptus trees in Tasmania. The weevils were identified using male genital structure and DNA extracted from hatched larvae. Parasitoids that emerged from the egg pods were identified, and trophic associations of egg parasitoids, weevils and host plants were analyzed. Five species of the Gonipterus scutellatus complex, to which G. platensis belongs, were found, including Gonipterus sp. 2, which is reported for the first time from Tasmania. Molecular analysis corroborated previous phylogenetic studies of this group of species. A sixth species, G. notographus, was also collected. Most species were found to overlap in distribution in Tasmania and, despite being oligophagous, to display selectivity among Eucalyptus species used as hosts: G. platensis and G. pulverulentus were mainly found on E. ovata, Gonipterus sp. 1 on E. nitens and E. globulus and G. notographus on ‘peppermint’ species (E. amygdalina and E. pulchella). Five egg parasitoid species were found associated with these Gonipterus species: Anaphes inexpectatus, A. nitens, A. tasmaniae, Cirrospilus sp. and Euderus sp., with no apparent host specialization. Anaphes nitens, Cirrospilus sp. and Euderus sp. were more frequently found on E. ovata, possibly associated with G. platensis and G. pulverulentus, which were dominant on this host species. Conversely, A. inexpectatus was dominantly found on peppermints (43%), suggesting a main association with G. notographus. Anaphes nitens was found at 23 locations out of 117 and in 2017 was the most abundant parasitoid obtained, with an average 20% parasitism rate, indicating that this species is undergoing a geographical and population expansion since its first report from Tasmania in 2012. These findings contribute to the understanding of the parasitoid-Gonipterus-Eucalyptus trophic relationship and stand to improve future classical biological control programs against G. platensis and other invasive Gonipterus species. © 2019 Elsevier B.V.
英文关键词	A. nitens; A. tasmaniae; Anaphes inexpectatus; Eucalyptus; Gonipterus platensis; Host associations
语种	英语
scopus关键词	Ecology; A. nitens; A. tasmaniae; Anaphes inexpectatus; Eucalyptus; Platensis; Forestry; beetle; biological control; egg parasitoid; evergreen tree; host-parasitoid interaction; identification method; invasive species; molecular analysis; native species; new record; survey method; Control Systems; Ecology; Eucalyptus; Forestry; Organizations; Plants; Tasmania; Trees; Australia; Iberian Peninsula; Tasmania; Anaphes; Anaphes nitens; Cirrospilus; Curculionidae; Eucalyptus; Eucalyptus amygdalina; Eucalyptus globulus; Eucalyptus nitens; Eucalyptus ovata; Eucalyptus pulchella; Euderus; Gonipterus; Gonipterus scutellatus
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156006
作者单位	Centro de Estudos Florestais, Instituto Superior de Agronomia - Universidade de Lisboa, Lisboa, Portugal; Tasmanian Institute of Agriculture, University of Tasmania, Sandy BayTAS, Australia; CSIRO Australian National Insect Collection, Australia; LEAF, Instituto Superior de Agronomia - Universidade de Lisboa, Lisboa, Portugal; RAIZ, Instituto de Investigação da Floresta e Papel, Eixo, Aveiro, Portugal; Altri Florestal, Olho Marinho, Peniche, Portugal
推荐引用方式 GB/T 7714	Garcia A.,Allen G.R.,Oberprieler R.G.,et al. Biological control of Gonipterus: Uncovering the associations between eucalypts, weevils and parasitoids in their native range[J],2019,443.
APA	Garcia A..,Allen G.R..,Oberprieler R.G..,Ramos A.P..,Valente C..,...&Branco M..(2019).Biological control of Gonipterus: Uncovering the associations between eucalypts, weevils and parasitoids in their native range.Forest Ecology and Management,443.
MLA	Garcia A.,et al."Biological control of Gonipterus: Uncovering the associations between eucalypts, weevils and parasitoids in their native range".Forest Ecology and Management 443(2019).