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High β‐diversity in fig wasp communities driven by species turnover in widely distributed Neotropical fig trees.

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Title: High β‐diversity in fig wasp communities driven by species turnover in widely distributed Neotropical fig trees.
Authors: Souza, Elmecelli Moraes de Castro1,2 (AUTHOR), Farache, Fernando Henrique Antoniolli3 (AUTHOR), Coelho, Luis Francisco Mello4 (AUTHOR), Kjellberg, Finn5,6,7,8 (AUTHOR), Cruaud, Astrid6,8,9,10,11 (AUTHOR), Rasplus, Jean‐Yves6,8,9,10,11 (AUTHOR), Pereira, Rodrigo Augusto Santinelo1 (AUTHOR) raspereira@usp.br
Source: Oikos. Feb2026, Vol. 2026 Issue 2, p1-14. 14p.
Subjects: Biodiversity, Insect communities, Dispersal (Ecology), Ficus (Plants), Fig, Host specificity (Biology)
Abstract: Wasp communities associated with fig trees, Ficus spp., are a model system to investigate how local and regional processes shape biodiversity across large geographical ranges. We investigated the β‐diversity of fig wasp assemblages associated with three widely distributed Neotropical fig species – F. citrifolia, F. obtusifolia and F. pertusa – using 27 years of spatially extensive sampling across Brazil, Costa Rica and Ecuador. We quantified β‐diversity using the Sørensen index and its components of turnover and nestedness. For all three Ficus species, β‐diversity was high (0.87–0.90), driven primarily by species turnover (85–96% of β‐diversity). Wasp guilds, i.e. gall inducers, kleptoparasites and parasitoids, presented similarly high turnover values. Our results showed that life‐history traits play a role in the variation of β‐diversity, as gall‐inducing species are more host‐specific. In contrast, kleptoparasitic and parasitoid wasps are more likely to use multiple hosts. Mantel tests revealed that both total β‐diversity and the turnover component were often positively correlated with geographic distance, particularly for the most sampled fig species. Despite the exceptional dispersal capacities reported for several fig wasp lineages, our results suggest that competition for limited fig inflorescence resources, along with natural selection for local adaptation, can restrict species' geographic ranges, thus promoting higher levels of species turnover. These findings underscore the complex interplay between dispersal ability, local adaptation and competitive interactions in shaping the composition of fig wasp communities. Consequently, fig wasp systems present a compelling model for investigating the ecological and evolutionary processes driving biodiversity dynamics in specialized plant–insect interactions. [ABSTRACT FROM AUTHOR]
Copyright of Oikos is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: High β‐diversity in fig wasp communities driven by species turnover in widely distributed Neotropical fig trees.
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  Data: <searchLink fieldCode="JN" term="%22Oikos%22">Oikos</searchLink>. Feb2026, Vol. 2026 Issue 2, p1-14. 14p.
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  Data: Wasp communities associated with fig trees, Ficus spp., are a model system to investigate how local and regional processes shape biodiversity across large geographical ranges. We investigated the β‐diversity of fig wasp assemblages associated with three widely distributed Neotropical fig species – F. citrifolia, F. obtusifolia and F. pertusa – using 27 years of spatially extensive sampling across Brazil, Costa Rica and Ecuador. We quantified β‐diversity using the Sørensen index and its components of turnover and nestedness. For all three Ficus species, β‐diversity was high (0.87–0.90), driven primarily by species turnover (85–96% of β‐diversity). Wasp guilds, i.e. gall inducers, kleptoparasites and parasitoids, presented similarly high turnover values. Our results showed that life‐history traits play a role in the variation of β‐diversity, as gall‐inducing species are more host‐specific. In contrast, kleptoparasitic and parasitoid wasps are more likely to use multiple hosts. Mantel tests revealed that both total β‐diversity and the turnover component were often positively correlated with geographic distance, particularly for the most sampled fig species. Despite the exceptional dispersal capacities reported for several fig wasp lineages, our results suggest that competition for limited fig inflorescence resources, along with natural selection for local adaptation, can restrict species' geographic ranges, thus promoting higher levels of species turnover. These findings underscore the complex interplay between dispersal ability, local adaptation and competitive interactions in shaping the composition of fig wasp communities. Consequently, fig wasp systems present a compelling model for investigating the ecological and evolutionary processes driving biodiversity dynamics in specialized plant–insect interactions. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Oikos is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1002/oik.11653
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        Text: English
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      – SubjectFull: Insect communities
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      – SubjectFull: Dispersal (Ecology)
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      – SubjectFull: Ficus (Plants)
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      – SubjectFull: Fig
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      – SubjectFull: Host specificity (Biology)
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              Text: Feb2026
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              Y: 2026
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