Trap-nesting solitary wasps (Hymenoptera: Aculeata) in an insular landscape: Mortality rates for immature wasps, parasitism, and sex ratios
The aim of this study was to examine the species composition and the abundance of solitary wasps that nest in preexisting cavities in the Ilha Anchieta State Park, Brazil. Sampling was made during two years utilizing trap-nests. Of the 254 nests obtained, 142 nests were built by 14 species belongin...
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Universidade Estadual de Feira de Santana
2014-07-01
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| Series: | Sociobiology |
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| Online Access: | https://www.periodicos.uefs.br/index.php/sociobiology/article/view/258 |
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| author | Ana Luiza Oliveira Nascimento Carlos Alberto Garófalo |
| author_facet | Ana Luiza Oliveira Nascimento Carlos Alberto Garófalo |
| author_sort | Ana Luiza Oliveira Nascimento |
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The aim of this study was to examine the species composition and the abundance of solitary wasps that nest in preexisting cavities in the Ilha Anchieta State Park, Brazil. Sampling was made during two years utilizing trap-nests. Of the 254 nests obtained, 142 nests were built by 14 species belonging to four genera and four families. In the remaining 112 nests all immatures were dead by unknown causes or had been parasitized by natural enemies. The occupation of trap-nests occurred almost throughout the study period and the wasps nested more frequently during the super-humid season. Trypoxylon lactitarse, Pachodynerus nasidens, Trypoxylon sp.2 aff. nitidum and Podium denticulatum were the most abundant species. The sex ratios of T. lactitarse and Trypoxylon sp.2 aff. nitidum were significantly male-biased, whereas those of Trypoxylon sp.5 aff. nitidum and P. nasidens were significantly female-biased. Sex ratios of P. denticulatum and P. brevithorax were not significantly different from 1:1. Natural enemies emerging from the nests were identified as belonging to the families Chrysididae, Ichneumonidae and Chalcididae (Hymenoptera), the genus Melittobia (Hymenoptera, Eulophidae), and the species Amobia floridensis (Townsend, 1892) (Diptera: Sarcophagidae). The number of cells with dead immatures from unknown factors was significantly higher than the number of cells parasitized by insects.
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| institution | OA Journals |
| issn | 0361-6525 2447-8067 |
| language | English |
| publishDate | 2014-07-01 |
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| spelling | doaj-art-4b7d6d55ac114224a342a925bd2a71e12025-08-20T02:17:49ZengUniversidade Estadual de Feira de SantanaSociobiology0361-65252447-80672014-07-01612Trap-nesting solitary wasps (Hymenoptera: Aculeata) in an insular landscape: Mortality rates for immature wasps, parasitism, and sex ratiosAna Luiza Oliveira Nascimento0Carlos Alberto Garófalo1Universidade de São Paulo, Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão PretoUniversidade de São Paulo, Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto The aim of this study was to examine the species composition and the abundance of solitary wasps that nest in preexisting cavities in the Ilha Anchieta State Park, Brazil. Sampling was made during two years utilizing trap-nests. Of the 254 nests obtained, 142 nests were built by 14 species belonging to four genera and four families. In the remaining 112 nests all immatures were dead by unknown causes or had been parasitized by natural enemies. The occupation of trap-nests occurred almost throughout the study period and the wasps nested more frequently during the super-humid season. Trypoxylon lactitarse, Pachodynerus nasidens, Trypoxylon sp.2 aff. nitidum and Podium denticulatum were the most abundant species. The sex ratios of T. lactitarse and Trypoxylon sp.2 aff. nitidum were significantly male-biased, whereas those of Trypoxylon sp.5 aff. nitidum and P. nasidens were significantly female-biased. Sex ratios of P. denticulatum and P. brevithorax were not significantly different from 1:1. Natural enemies emerging from the nests were identified as belonging to the families Chrysididae, Ichneumonidae and Chalcididae (Hymenoptera), the genus Melittobia (Hymenoptera, Eulophidae), and the species Amobia floridensis (Townsend, 1892) (Diptera: Sarcophagidae). The number of cells with dead immatures from unknown factors was significantly higher than the number of cells parasitized by insects. https://www.periodicos.uefs.br/index.php/sociobiology/article/view/258Atlantic forestnatural enemiesphenologysex ratiowasp abundance |
| spellingShingle | Ana Luiza Oliveira Nascimento Carlos Alberto Garófalo Trap-nesting solitary wasps (Hymenoptera: Aculeata) in an insular landscape: Mortality rates for immature wasps, parasitism, and sex ratios Sociobiology Atlantic forest natural enemies phenology sex ratio wasp abundance |
| title | Trap-nesting solitary wasps (Hymenoptera: Aculeata) in an insular landscape: Mortality rates for immature wasps, parasitism, and sex ratios |
| title_full | Trap-nesting solitary wasps (Hymenoptera: Aculeata) in an insular landscape: Mortality rates for immature wasps, parasitism, and sex ratios |
| title_fullStr | Trap-nesting solitary wasps (Hymenoptera: Aculeata) in an insular landscape: Mortality rates for immature wasps, parasitism, and sex ratios |
| title_full_unstemmed | Trap-nesting solitary wasps (Hymenoptera: Aculeata) in an insular landscape: Mortality rates for immature wasps, parasitism, and sex ratios |
| title_short | Trap-nesting solitary wasps (Hymenoptera: Aculeata) in an insular landscape: Mortality rates for immature wasps, parasitism, and sex ratios |
| title_sort | trap nesting solitary wasps hymenoptera aculeata in an insular landscape mortality rates for immature wasps parasitism and sex ratios |
| topic | Atlantic forest natural enemies phenology sex ratio wasp abundance |
| url | https://www.periodicos.uefs.br/index.php/sociobiology/article/view/258 |
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