Age matters: variations in parasitoid diversity along a successional gradient in a dry semi-deciduous tropical forest

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Title: Age matters: variations in parasitoid diversity along a successional gradient in a dry semi-deciduous tropical forest
Authors: González Moreno, Alejandra | Bordera, Santiago | Ballina-Gómez, Horacio | Leirana-Alcocer, Jorge
Research Group/s: Bionomía, Sistemática e Investigación Aplicada de Insectos (BIONOMIA)
Center, Department or Service: Universidad de Alicante. Departamento de Ciencias Ambientales y Recursos Naturales
Keywords: Diversity | Guilds | Ichneumonidae | Neotropic | Successional stages
Issue Date: 29-Aug-2023
Publisher: Cambridge University Press
Citation: Bulletin of Entomological Research. 2023, 113(5): 604-614.
Abstract: Parasitoids are an important group of insects because their species number is among the highest. Multiple studies have addressed the relationships between forest successional age and insect diversity by focusing on herbivorous organisms, but changes in diversity of parasitoids are still poorly known. This work analyses the diversity of parasitoids in tropical forests representing three successional stages. A total of 30 traps were placed, ten in each forest successional stages. We estimated true diversity of Ichneumonidae species and guilds and explored the relationship between their diversity and the abundance of plant species using an Indicator Species Analysis; the relationship between parasitoid species and plant richness and abundance was tested using a Redundancy Analysis. A total of 1522 individuals and 168 morpho-species were captured in four months. Species richness showed no differences; however, parasitoid abundance was higher in young forest, while intermediate forest had the highest true diversity values (1D) with 71.6 effective species. According to insect guilds, richness, abundance, and diversity were similar in the three vegetation successional stages. This finding may be explained based on the intermediate disturbance hypothesis, which postulates that moderate disturbance levels favor the highest diversity. In conclusion, successional age matters, i.e., diversity is the highest in intermediate stages, while the old forests harbors guilds unique to that successional stage, such as parasitoids of melitophagous larvae of bees. Other successional stages were characterized by a single species of parasitoid, belonging to the genera Eiphosoma and Anomalon, which may indicate altered and preserved forests, respectively.
Sponsor: This study was supported by Project CONACyT titled ‘Diversidad de parasitoides y su relación con la complejidad estructural de la vegetación: modelos predictivos a nivel climático y de paisaje’. Reference: CB-2014-01, 241138.
ISSN: 0007-4853 (Print) | 1475-2670 (Online)
DOI: 10.1017/S0007485323000287
Language: eng
Type: info:eu-repo/semantics/article
Rights: © The Author(s), 2023. Published by Cambridge University Press
Peer Review: si
Publisher version:
Appears in Collections:INV - BIONOMIA - Artículos Científicos / Scientific Papers

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