Trap-nesting solitary wasps (Hymenoptera: Aculeata) in an insular landscape: Mortality rates for immature wasps, parasitism, and sex ratios

<p>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...

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Autores principales:	Ana Luiza Oliveira Nascimento, Carlos Alberto Garófalo
Formato:	article
Lenguaje:	EN
Publicado:	Universidade Estadual de Feira de Santana 2014
Materias:	Atlantic forest, natural enemies, phenology, sex ratio, wasp abundance Zoology QL1-991 Ecology QH540-549.5 Natural history (General) QH1-278.5
Acceso en línea:	https://doaj.org/article/82a9cd38bf5d4c9899245cf425c49447
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spelling	oai:doaj.org-article:82a9cd38bf5d4c9899245cf425c494472021-12-02T13:52:21ZTrap-nesting solitary wasps (Hymenoptera: Aculeata) in an insular landscape: Mortality rates for immature wasps, parasitism, and sex ratios0361-652510.13102/sociobiology.v61i2.207-217https://doaj.org/article/82a9cd38bf5d4c9899245cf425c494472014-07-01T00:00:00Zhttp://periodicos.uefs.br/ojs/index.php/sociobiology/article/view/258https://doaj.org/toc/0361-6525<p>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. <em>Trypoxylon lactitarse</em>, <em>Pachodynerus nasidens</em>, <em>Trypoxylon</em> sp.2 aff. nitidum and<em> Podium denticulatum</em> were the most abundant species. The sex ratios of <em>T. lactitarse</em> and <em>Trypoxylon</em> sp.2 aff. <em>nitidum</em> were significantly male-biased, whereas those of <em>Trypoxylon</em> sp.5 aff. nitidum and <em>P. nasidens</em> were significantly female-biased. Sex ratios of<em> P. denticulatum</em> and <em>P. brevithorax</em> 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<em> Melittobia</em> (Hymenoptera, Eulophidae), and the species <em>Amobia floridensis</em> (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.</p>Ana Luiza Oliveira NascimentoCarlos Alberto GarófaloUniversidade Estadual de Feira de SantanaarticleAtlantic forest, natural enemies, phenology, sex ratio, wasp abundanceZoologyQL1-991EcologyQH540-549.5Natural history (General)QH1-278.5ENSociobiology, Vol 61, Iss 2, Pp 207-217 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Atlantic forest, natural enemies, phenology, sex ratio, wasp abundance Zoology QL1-991 Ecology QH540-549.5 Natural history (General) QH1-278.5
spellingShingle	Atlantic forest, natural enemies, phenology, sex ratio, wasp abundance Zoology QL1-991 Ecology QH540-549.5 Natural history (General) QH1-278.5 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
description	<p>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. <em>Trypoxylon lactitarse</em>, <em>Pachodynerus nasidens</em>, <em>Trypoxylon</em> sp.2 aff. nitidum and<em> Podium denticulatum</em> were the most abundant species. The sex ratios of <em>T. lactitarse</em> and <em>Trypoxylon</em> sp.2 aff. <em>nitidum</em> were significantly male-biased, whereas those of <em>Trypoxylon</em> sp.5 aff. nitidum and <em>P. nasidens</em> were significantly female-biased. Sex ratios of<em> P. denticulatum</em> and <em>P. brevithorax</em> 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<em> Melittobia</em> (Hymenoptera, Eulophidae), and the species <em>Amobia floridensis</em> (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.</p>
format	article
author	Ana Luiza Oliveira Nascimento Carlos Alberto Garófalo
author_facet	Ana Luiza Oliveira Nascimento Carlos Alberto Garófalo
author_sort	Ana Luiza Oliveira Nascimento
title	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_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_sort	trap-nesting solitary wasps (hymenoptera: aculeata) in an insular landscape: mortality rates for immature wasps, parasitism, and sex ratios
publisher	Universidade Estadual de Feira de Santana
publishDate	2014
url	https://doaj.org/article/82a9cd38bf5d4c9899245cf425c49447
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Trap-nesting solitary wasps (Hymenoptera: Aculeata) in an insular landscape: Mortality rates for immature wasps, parasitism, and sex ratios

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