Nesting biology of the leafcutting bee <i>Megachile</i> (<i>Pseudocentron</i>) <i>gomphrenoides</i> (Hymenoptera: Megachilidae) in an agro-ecosystem

The nesting biology of the leafcutting bee Megachile (Pseudocentron) gomphrenoides Vachal (Hymenoptera: Megachilidae) was studied in an agro-ecosystem in the Province of Buenos Aires, Argentina. Data were obtained from trap-nests placed in the field margin during two agricultural years (2008/2009 an...

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Autores principales: Torretta, Juan Pablo, Durante, Silvana Patricia, Colombo, María Guadalupe, Basilio, Alicia Mabel
Formato: Articulo
Lenguaje:Inglés
Publicado: 2012
Materias:
Ciencias Naturales
Solitary bees
Trap-nest
Pollination
Argentina
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/98955
https://ri.conicet.gov.ar/11336/16180
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-98955
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Solitary bees
Trap-nest
Pollination
Argentina
spellingShingle Ciencias Naturales
Solitary bees
Trap-nest
Pollination
Argentina
Torretta, Juan Pablo
Durante, Silvana Patricia
Colombo, María Guadalupe
Basilio, Alicia Mabel
Nesting biology of the leafcutting bee <i>Megachile</i> (<i>Pseudocentron</i>) <i>gomphrenoides</i> (Hymenoptera: Megachilidae) in an agro-ecosystem
topic_facet Ciencias Naturales
Solitary bees
Trap-nest
Pollination
Argentina
description The nesting biology of the leafcutting bee Megachile (Pseudocentron) gomphrenoides Vachal (Hymenoptera: Megachilidae) was studied in an agro-ecosystem in the Province of Buenos Aires, Argentina. Data were obtained from trap-nests placed in the field margin during two agricultural years (2008/2009 and 2009/2010). Females made an average of 7.55 cells per nest, and used leaves of at least three plant species to build their nests. Provisions of cells were principally of Asteraceae pollen. Adult emergence showed a bimodal pattern suggesting a facultative bivoltinism life cycle. Approximately, 30 % of all offspring failed to complete development to the adult stage and an additional 10 % were killed by natural enemies. These included parasitic wasps (Eulophidae: Melittobia and Horismenus), a cleptoparasite bee (Megachilidae: Coelioxys), and a bristle beetle (Meloidae: Tetraonyx). The host/cleptoparasite association between M. gomphrenoides and Coelioxys remissa constitutes the first such record for both species, and the Megachile–Tetraonyx interaction was previously unknown. M. gomphrenoides possesses some characteristics that make it an interesting potential opportunity to use this species for pollination of commercial sunflowers in the Pampean region.
format Articulo
Articulo
author Torretta, Juan Pablo
Durante, Silvana Patricia
Colombo, María Guadalupe
Basilio, Alicia Mabel
author_facet Torretta, Juan Pablo
Durante, Silvana Patricia
Colombo, María Guadalupe
Basilio, Alicia Mabel
author_sort Torretta, Juan Pablo
title Nesting biology of the leafcutting bee <i>Megachile</i> (<i>Pseudocentron</i>) <i>gomphrenoides</i> (Hymenoptera: Megachilidae) in an agro-ecosystem
title_short Nesting biology of the leafcutting bee <i>Megachile</i> (<i>Pseudocentron</i>) <i>gomphrenoides</i> (Hymenoptera: Megachilidae) in an agro-ecosystem
title_full Nesting biology of the leafcutting bee <i>Megachile</i> (<i>Pseudocentron</i>) <i>gomphrenoides</i> (Hymenoptera: Megachilidae) in an agro-ecosystem
title_fullStr Nesting biology of the leafcutting bee <i>Megachile</i> (<i>Pseudocentron</i>) <i>gomphrenoides</i> (Hymenoptera: Megachilidae) in an agro-ecosystem
title_full_unstemmed Nesting biology of the leafcutting bee <i>Megachile</i> (<i>Pseudocentron</i>) <i>gomphrenoides</i> (Hymenoptera: Megachilidae) in an agro-ecosystem
title_sort nesting biology of the leafcutting bee <i>megachile</i> (<i>pseudocentron</i>) <i>gomphrenoides</i> (hymenoptera: megachilidae) in an agro-ecosystem
publishDate 2012
url http://sedici.unlp.edu.ar/handle/10915/98955
https://ri.conicet.gov.ar/11336/16180
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