Trap-nest occupation by solitary wasps and bees (Hymenoptera: Aculeata) in a forest urban remanent

Loyola, Rafael; Martins, Rogério Parentoni

doi:10.1590/s1519-566x2006000100006

Cited by 47 publications

(49 citation statements)

References 28 publications

(32 reference statements)

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“…Four wasp and seven bee species occupied a total of 137 trap nests (see Loyola & Martins 2006, for details). Wasps occupied the majority of nests (n = 103, 75%).…”

Section: Resultsmentioning

confidence: 99%

“…Sampling effort was suitable for the study area (see Loyola & Martins 2008). During the study period, none of the trap nests were occupied by two or more species, and nesting frequency over the year showed consistent patterns associated to each species (Loyola & Martins 2006).…”

Section: Resultsmentioning

confidence: 99%

“…The area has been protected since 1969, and has several types of vegetation, including cerrado, and swamps at an altitude of 830 m a.s.l. (Martins & Antonini 1994;Loyola & Martins 2006). Nesting activity of solitary bees and wasps in Brazil is higher in the wet season.…”

Section: Methodsmentioning

confidence: 99%

“…Their use improves biological data acquisition on species that build their nests on pre-existing cavities (Koerber & Medler 1958). Some studies used these species to evaluate the impact of parasite action (Scott et al 2000) and also to describe nest building process and structure (Camillo et al 1993;Pereira et al 1999;Alves dos Santos et al 2002;Loyola & Martins 2006).…”

Section: Methodsmentioning

confidence: 99%

“…Further, it is known that species at high trophic levels, mutualists, habitat specialists and host plants are likely to go extinct first from the diminishing size of the habitat (Holt et al 1999;Rathcke & Jules 1993;Steffan-Dewenter & Tscharntke 2002). This assumes particular importance for cavity-nesting bees and wasps given that how pollinators, predators and parasitoids (the major functional groups these insects fit in) respond to area size is still obscure (Didham et al 1996;Harrison & Bruna 1999;Debinski & Holt 2000) as well as our knowledge on how this component of insect diversity respond to such habitat alterations (but see Morato & Campos 2000;Steffan-Dewenter 2002;Loyola & Martins 2006, 2008, 2009). …”

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confidence: 99%

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Small-scale area effect on species richness and nesting occupancy of cavity-nesting bees and wasps

Loyola¹,

Martins²

2011

Rev. Bras. entomol.

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Small-scale area effect on species richness and nesting occupancy of cavity-nesting bees and wasps. The research was conducted in an urban forest remnant in southeast Brazil. We tested the predictions of the following hypotheses: (1) larger areas present higher species richness of bees and wasps, (2) solitary bees and wasps occupy more nests in larger areas, (3) rare species occupy more nests in smaller areas. We sampled Aculeate bees and wasps using trap nests from February to November 2004. We placed trap nests in sampling units (SU) with different size (25, 100 and 400 m²) located in 6 ha of secondary mesophytic forest. One hundred and thirty-seven trap nests were occupied by seven species of bees and four species of wasps. We found an increase in wasp, but not bee species richness following increase in SU size. Hymenoptera richness (i.e. bees plus wasps) was also greater in larger SU. Both the number and density of occupied nests increased with SU size. The wasp Trypoxylon lactitarse responded significantly to area size, larger SU having more occupied nests. The same pattern was exhibited by the wasp Auplopus militaris, the Megachile bee species, and the bee Anthodioctes megachiloides. Only Trypoxylon sp. was not affected by SU size. Our results show that cavity-nesting bee and wasps respond differently to the area effects. Such findings must be complemented by information on the frequency and dynamics of area colonization and nest occupancy by species of solitary Hymenoptera.
Efeito de área em pequena escala sobre a riqueza e comportamento de nidificação de abelhas e vespas solitárias. Este trabalho foi realizado em fragmento florestal urbano localizado na região sudeste do Brasil. Foram testadas as predições das seguintes hipóteses: (1) áreas maiores apresentam maior riqueza de espécies de abelhas e vespas que nidificam em cavidades pré-existentes, (2) espécies de abelhas e vespas que nidificam em cavidades pré-existentes ocupam mais ninhos em áreas maiores, (3) espécies raras ocupam mais ninhos em áreas menores. Estes insetos foram amostrados por meio de ninhos-armadilha de fevereiro a novembro de 2004. As armadilhas foram dispostas em unidades amostrais com diferentes tamanhos (25, 100 e 400 m²), alocadas em um fragmento de floresta mesofítica de 6 ha. Cento e trinta e sete armadilhas foram ocupadas por sete espécies de abelhas e quatro espécies de vespa. Observamos um aumento na riqueza de vespas associado a uma maior área amostral; não observamos o mesmo para abelhas. A riqueza de espécies de Hymenoptera (abelhas e vespas, em conjunto) foi maior em áreas maiores. Tanto a abundância quanto a densidade de ninhos ocupados por abelhas e vespas aumentou com o aumento da unidade amostral. Trypoxylon lactitarse ocorreu mais frequentemente em áreas maiores. O mesmo padrão foi observado para Auplopus militaris, espécies do gênero Megachile e Anthodioctes megachiloides. Apenas Trypoxylon sp. não foi afetada pelo tamanho da unidade amostral. Os resultados do estudo mostram que abelhas e vespas solitárias respon...

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“…Four wasp and seven bee species occupied a total of 137 trap nests (see Loyola & Martins 2006, for details). Wasps occupied the majority of nests (n = 103, 75%).…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%