Nest architecture of group-living wasps Microstigmus (Hymenoptera: Sphecidae): role of the pedicel as a defense against ants

The nest pedicel of a social sphecid wasp Microstigmus nr. thripoctenus plays an important role in protecting the brood against ant predators, as inferred from data on artificial nests. A pair of artificial nests with or without pedicels was suspended from the undersides of leaves (Carludovica palma...

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Main Authors: Gretthehun G. Grajales, Willian T. Wcislo
Format: Article
Language:English
Published: Vicerractoría Investigación 1998-12-01
Series:Revista de Biología Tropical
Subjects:
Online Access:http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77441998000400023
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spelling doaj-f0489fbf08f54d33bc6473606076850b2020-11-25T01:40:44ZengVicerractoría InvestigaciónRevista de Biología Tropical0034-77442215-20751998-12-0146411411143Nest architecture of group-living wasps Microstigmus (Hymenoptera: Sphecidae): role of the pedicel as a defense against antsGretthehun G. GrajalesWillian T. WcisloThe nest pedicel of a social sphecid wasp Microstigmus nr. thripoctenus plays an important role in protecting the brood against ant predators, as inferred from data on artificial nests. A pair of artificial nests with or without pedicels was suspended from the undersides of leaves (Carludovica palmata) for 30 min to assess rates of discovery and removal of food (tuna bait) by ants (N = 36 pairs). Three-hundred and forty-three individuals of five ant species removed food at a higher frequency from nests without pedicels (83.3% of 36 nests) than for nests with pedicels (11.1% of 36 nests).<br>La suspensión pedicelar en la arquitectura del nido de la avispa social Microstigmus nr. thripoctenus juega un importante papel en la protección de las crías contra los depredadores, especialmente hormigas, basado de estudios con nidos artificiales. Debajo de las hojas de Carludovica palmata un nido artificial con pedicelo y otro sin pedicelo fueron suspendidos por 30 min para determinar la frecuencia de descubrimiento y eliminación de un cebo (atún) (N = 36 pares). El porcentaje de depredación fue menor (11.1%) en los nidos con pedicelo que en nidos sin pedicelo (83.3%). Se observaron 343 individuos de cinco especies de hormigas atacando los nidos artificiales.http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77441998000400023brood predationantsnest architecturematernal caredefense
collection DOAJ
language English
format Article
sources DOAJ
author Gretthehun G. Grajales
Willian T. Wcislo
spellingShingle Gretthehun G. Grajales
Willian T. Wcislo
Nest architecture of group-living wasps Microstigmus (Hymenoptera: Sphecidae): role of the pedicel as a defense against ants
Revista de Biología Tropical
brood predation
ants
nest architecture
maternal care
defense
author_facet Gretthehun G. Grajales
Willian T. Wcislo
author_sort Gretthehun G. Grajales
title Nest architecture of group-living wasps Microstigmus (Hymenoptera: Sphecidae): role of the pedicel as a defense against ants
title_short Nest architecture of group-living wasps Microstigmus (Hymenoptera: Sphecidae): role of the pedicel as a defense against ants
title_full Nest architecture of group-living wasps Microstigmus (Hymenoptera: Sphecidae): role of the pedicel as a defense against ants
title_fullStr Nest architecture of group-living wasps Microstigmus (Hymenoptera: Sphecidae): role of the pedicel as a defense against ants
title_full_unstemmed Nest architecture of group-living wasps Microstigmus (Hymenoptera: Sphecidae): role of the pedicel as a defense against ants
title_sort nest architecture of group-living wasps microstigmus (hymenoptera: sphecidae): role of the pedicel as a defense against ants
publisher Vicerractoría Investigación
series Revista de Biología Tropical
issn 0034-7744
2215-2075
publishDate 1998-12-01
description The nest pedicel of a social sphecid wasp Microstigmus nr. thripoctenus plays an important role in protecting the brood against ant predators, as inferred from data on artificial nests. A pair of artificial nests with or without pedicels was suspended from the undersides of leaves (Carludovica palmata) for 30 min to assess rates of discovery and removal of food (tuna bait) by ants (N = 36 pairs). Three-hundred and forty-three individuals of five ant species removed food at a higher frequency from nests without pedicels (83.3% of 36 nests) than for nests with pedicels (11.1% of 36 nests).<br>La suspensión pedicelar en la arquitectura del nido de la avispa social Microstigmus nr. thripoctenus juega un importante papel en la protección de las crías contra los depredadores, especialmente hormigas, basado de estudios con nidos artificiales. Debajo de las hojas de Carludovica palmata un nido artificial con pedicelo y otro sin pedicelo fueron suspendidos por 30 min para determinar la frecuencia de descubrimiento y eliminación de un cebo (atún) (N = 36 pares). El porcentaje de depredación fue menor (11.1%) en los nidos con pedicelo que en nidos sin pedicelo (83.3%). Se observaron 343 individuos de cinco especies de hormigas atacando los nidos artificiales.
topic brood predation
ants
nest architecture
maternal care
defense
url http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77441998000400023
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