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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/29892
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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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1846083126164455424 |
score |
13.22299 |