塞拉多地区无花果小蜂(膜翅目:蜂总科)的群落结构和专门化

IF 0.7 4区 农林科学 Q4 ENTOMOLOGY Revista Brasileira de Entomologia Pub Date : 2022-01-01 DOI:10.1590/1806-9665-rbent-2021-0101
Nayara Santos, Jessica F. Andrade, R. A. Pereira, F. Farache
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引用次数: 0

摘要

榕树花序上寄生着一个种类丰富的酸蜂群落,包括授粉榕蜂(Agaonidae: Tetrapusinae, Kradibiinae和Agaoninae)和几种非授粉榕蜂(NPFW),它们表现出几种生活史策略,包括胆管诱导剂,盗寄生(即inquilines)和拟寄生物。我们分析了巴西Goiás州城市化地区、农业生态系统和森林碎片边缘与榕属花序相关的榕黄蜂群落的结构和专业化程度。我们在4种本地榕属树种中采集了34种寄生蜂,其中4种寄生蜂出现在一个以上的寄主中。新热带无花果传粉媒介Pegoscapus和Tetrapus是最丰富的物种,它们是宿主特异性的,尽管有两种传粉媒介与无花果有关。同一寄主采集的榕小蜂的Jaccard相似性指数较高,表明群落组成对不同寄主具有特异性。群落结构指标表现为低连通性、高二维Shannon H2′和低伴侣多样性的特化结构。群落呈模块化的网状结构,其中每个单元由每个寄主及其伴生昆虫种代表。这些结果表明,所分析的无花果黄蜂群落是高度专门化的,尽管有一些不是严格的宿主特异性物种。A R T I C L E I N F O文章历史:2021年9月28日收稿2022年1月25日接收在线2022年3月25日副主编:Marcelo Tavares
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Community structure and specialization in fig wasps (Hymenoptera: Chalcidoidea) in a region of Cerrado
Ficus inflorescences host a species-rich chalcid wasp community, including pollinating fig wasps (Agaonidae: Tetrapusinae, Kradibiinae, and Agaoninae) and several species of non-pollinating fig wasps (NPFW), that show several life-history strategies, including gall-inducers, kleptoparasites (i. e. inquilines), and parasitoids. We analyzed the structure and degree of specialization of the fig wasp community associated with Ficus inflorescences in urbanized areas, agroecosystems, and on the edge of forest fragments in the state of Goiás (Brazil). We sampled 34 wasp species in four native Ficus tree species, from which four wasp species occurred in more than one host. Neotropical fig pollinators (Pegoscapus and Tetrapus) were the most abundant species, and they were host-specific, although two pollinator species were associated with Ficus obtusifolia. The Jaccard similarity index was higher in samples of fig wasps collected in the same host, indicating that the community composition was specific to each host species. Community structure indices indicate a specialized structure with low connectance, high bidimensional Shannon H2’ and low partner diversity. The communities present a modular web structure in which modules were represented by each host and its associated insect species. These results indicate that the fig wasp communities analyzed are highly specialized, despite a few not strictly host-specific species. A R T I C L E I N F O Article history: Received 28 September 2021 Accepted 25 January 2022 Available online 25 March 2022 Associate Editor: Marcelo Tavares
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1.50
自引率
12.50%
发文量
14
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6-12 weeks
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