Nuptial Gifts in Pomacea canaliculata (Ampullariidae, Caenogastropoda): Experimental and Field Evidence about Their Function

Autores
Burela, Silvana; Martín, Pablo Rafael
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Pomacea canaliculata is a South American apple snail that shows a multiple mating behavior. The copulations are frequent and long lasting, and consequently the males have to face strong sperm competition. The outer gland at the base of the penis sheath secrets drops of mucus that females eat during copulation. These mucus drops are nuptial gifts, and the occurrence of them is the only known instance of this behavior in molluscs. We investigated three possible functions of the gift-giving behavior in P. canaliculata based on three hypotheses: prowler deterrence, male mating effort and paternal investment. We also quantified the frequency of nuptial gifts in two populations of P. canaliculata and its possible role in male competition. We found no aversive reaction neither in females nor in males, but females were attracted to the mucus secretion. The consumption of artificial nuptial gifts (homogenates of the outer sheath gland) had no effect on the copulation duration nor on the total number of eggs and egg masses laid by females. In the field, the frequency of nuptial gifts was almost ten times greater in the population with the highest density of snails, indicating a much higher rate of production of nuptial gifts. The proportion of couples with both nuptial gifts and a prowler males attached was significantly higher than expected by chance in the population with the highest population density. Even though our results give no support for the three hypothesized functions for the nuptial gifts in P. canaliculata, this study revealed a possible different role in male competition: the enticement of the female to remain in copulation when the other males are trying to gain access.
Fil: Burela, Silvana. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Martín, Pablo Rafael. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Apple Snail
Male Competition
Copulation
Male Paternal Investment
Mating Effort
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/29892
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Nuptial Gifts in Pomacea canaliculata (Ampullariidae, Caenogastropoda): Experimental and Field Evidence about Their FunctionBurela, SilvanaMartín, Pablo RafaelApple SnailMale CompetitionCopulationMale Paternal InvestmentMating Efforthttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Pomacea canaliculata is a South American apple snail that shows a multiple mating behavior. The copulations are frequent and long lasting, and consequently the males have to face strong sperm competition. The outer gland at the base of the penis sheath secrets drops of mucus that females eat during copulation. These mucus drops are nuptial gifts, and the occurrence of them is the only known instance of this behavior in molluscs. We investigated three possible functions of the gift-giving behavior in P. canaliculata based on three hypotheses: prowler deterrence, male mating effort and paternal investment. We also quantified the frequency of nuptial gifts in two populations of P. canaliculata and its possible role in male competition. We found no aversive reaction neither in females nor in males, but females were attracted to the mucus secretion. The consumption of artificial nuptial gifts (homogenates of the outer sheath gland) had no effect on the copulation duration nor on the total number of eggs and egg masses laid by females. In the field, the frequency of nuptial gifts was almost ten times greater in the population with the highest density of snails, indicating a much higher rate of production of nuptial gifts. The proportion of couples with both nuptial gifts and a prowler males attached was significantly higher than expected by chance in the population with the highest population density. Even though our results give no support for the three hypothesized functions for the nuptial gifts in P. canaliculata, this study revealed a possible different role in male competition: the enticement of the female to remain in copulation when the other males are trying to gain access.Fil: Burela, Silvana. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Martín, Pablo Rafael. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaInstitute of Malacology2014-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/29892Burela, Silvana; Martín, Pablo Rafael; Nuptial Gifts in Pomacea canaliculata (Ampullariidae, Caenogastropoda): Experimental and Field Evidence about Their Function; Institute of Malacology; Malacologia; 57; 2; 11-2014; 319-3270076-29972168-9075CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.4002/040.057.0205info:eu-repo/semantics/altIdentifier/url/http://www.bioone.org/doi/10.4002/040.057.0205info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:58:34Zoai:ri.conicet.gov.ar:11336/29892instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:58:34.491CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Nuptial Gifts in Pomacea canaliculata (Ampullariidae, Caenogastropoda): Experimental and Field Evidence about Their Function
title Nuptial Gifts in Pomacea canaliculata (Ampullariidae, Caenogastropoda): Experimental and Field Evidence about Their Function
spellingShingle Nuptial Gifts in Pomacea canaliculata (Ampullariidae, Caenogastropoda): Experimental and Field Evidence about Their Function
Burela, Silvana
Apple Snail
Male Competition
Copulation
Male Paternal Investment
Mating Effort
title_short Nuptial Gifts in Pomacea canaliculata (Ampullariidae, Caenogastropoda): Experimental and Field Evidence about Their Function
title_full Nuptial Gifts in Pomacea canaliculata (Ampullariidae, Caenogastropoda): Experimental and Field Evidence about Their Function
title_fullStr Nuptial Gifts in Pomacea canaliculata (Ampullariidae, Caenogastropoda): Experimental and Field Evidence about Their Function
title_full_unstemmed Nuptial Gifts in Pomacea canaliculata (Ampullariidae, Caenogastropoda): Experimental and Field Evidence about Their Function
title_sort Nuptial Gifts in Pomacea canaliculata (Ampullariidae, Caenogastropoda): Experimental and Field Evidence about Their Function
dc.creator.none.fl_str_mv Burela, Silvana
Martín, Pablo Rafael
author Burela, Silvana
author_facet Burela, Silvana
Martín, Pablo Rafael
author_role author
author2 Martín, Pablo Rafael
author2_role author
dc.subject.none.fl_str_mv Apple Snail
Male Competition
Copulation
Male Paternal Investment
Mating Effort
topic Apple Snail
Male Competition
Copulation
Male Paternal Investment
Mating Effort
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Pomacea canaliculata is a South American apple snail that shows a multiple mating behavior. The copulations are frequent and long lasting, and consequently the males have to face strong sperm competition. The outer gland at the base of the penis sheath secrets drops of mucus that females eat during copulation. These mucus drops are nuptial gifts, and the occurrence of them is the only known instance of this behavior in molluscs. We investigated three possible functions of the gift-giving behavior in P. canaliculata based on three hypotheses: prowler deterrence, male mating effort and paternal investment. We also quantified the frequency of nuptial gifts in two populations of P. canaliculata and its possible role in male competition. We found no aversive reaction neither in females nor in males, but females were attracted to the mucus secretion. The consumption of artificial nuptial gifts (homogenates of the outer sheath gland) had no effect on the copulation duration nor on the total number of eggs and egg masses laid by females. In the field, the frequency of nuptial gifts was almost ten times greater in the population with the highest density of snails, indicating a much higher rate of production of nuptial gifts. The proportion of couples with both nuptial gifts and a prowler males attached was significantly higher than expected by chance in the population with the highest population density. Even though our results give no support for the three hypothesized functions for the nuptial gifts in P. canaliculata, this study revealed a possible different role in male competition: the enticement of the female to remain in copulation when the other males are trying to gain access.
Fil: Burela, Silvana. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Martín, Pablo Rafael. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description Pomacea canaliculata is a South American apple snail that shows a multiple mating behavior. The copulations are frequent and long lasting, and consequently the males have to face strong sperm competition. The outer gland at the base of the penis sheath secrets drops of mucus that females eat during copulation. These mucus drops are nuptial gifts, and the occurrence of them is the only known instance of this behavior in molluscs. We investigated three possible functions of the gift-giving behavior in P. canaliculata based on three hypotheses: prowler deterrence, male mating effort and paternal investment. We also quantified the frequency of nuptial gifts in two populations of P. canaliculata and its possible role in male competition. We found no aversive reaction neither in females nor in males, but females were attracted to the mucus secretion. The consumption of artificial nuptial gifts (homogenates of the outer sheath gland) had no effect on the copulation duration nor on the total number of eggs and egg masses laid by females. In the field, the frequency of nuptial gifts was almost ten times greater in the population with the highest density of snails, indicating a much higher rate of production of nuptial gifts. The proportion of couples with both nuptial gifts and a prowler males attached was significantly higher than expected by chance in the population with the highest population density. Even though our results give no support for the three hypothesized functions for the nuptial gifts in P. canaliculata, this study revealed a possible different role in male competition: the enticement of the female to remain in copulation when the other males are trying to gain access.
publishDate 2014
dc.date.none.fl_str_mv 2014-11
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/29892
Burela, Silvana; Martín, Pablo Rafael; Nuptial Gifts in Pomacea canaliculata (Ampullariidae, Caenogastropoda): Experimental and Field Evidence about Their Function; Institute of Malacology; Malacologia; 57; 2; 11-2014; 319-327
0076-2997
2168-9075
CONICET Digital
CONICET
url http://hdl.handle.net/11336/29892
identifier_str_mv Burela, Silvana; Martín, Pablo Rafael; Nuptial Gifts in Pomacea canaliculata (Ampullariidae, Caenogastropoda): Experimental and Field Evidence about Their Function; Institute of Malacology; Malacologia; 57; 2; 11-2014; 319-327
0076-2997
2168-9075
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.4002/040.057.0205
info:eu-repo/semantics/altIdentifier/url/http://www.bioone.org/doi/10.4002/040.057.0205
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Institute of Malacology
publisher.none.fl_str_mv Institute of Malacology
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.22299

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