The adaptive value of cued dispersal in desert plants: seed retention and release in Mammillaria pectinifera, a small globose cactus

Serotiny, or delayed seed dispersal, is common in fluctuating environments because it hedges the risks of establishment. Mammillaria pectinifera (Cactaceae) facultatively expels fruits in the year they are produced or retains them to disperse the seed over several years. We tested whether M. pectini...

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Detalles Bibliográficos
Autores: Peters, EM, Martorell-Delgado, Carlos, Ezcurra, E
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2009
País:México
Institución:Universidad Nacional Autónoma de México
Repositorio:Sistema de Información de la Facultad de Ciencias, UNAM
OAI Identifier:oai:repositorio.fciencias.unam.mx:11154/141152
Acceso en línea:http://hdl.handle.net/11154/141152
Access Level:acceso abierto
Palabra clave:Bet-hedging
Cactaceae
environmental triggers
Mammillaria
Mexico; serotiny
Tehuacán Valley
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repository_id_str
spelling The adaptive value of cued dispersal in desert plants: seed retention and release in Mammillaria pectinifera, a small globose cactusPeters, EMMartorell-Delgado, CarlosEzcurra, EBet-hedgingCactaceaeenvironmental triggersMammillariaMexico; serotinyTehuacán ValleySerotiny, or delayed seed dispersal, is common in fluctuating environments because it hedges the risks of establishment. Mammillaria pectinifera (Cactaceae) facultatively expels fruits in the year they are produced or retains them to disperse the seed over several years. We tested whether M. pectinifera increased fruit expulsion as a response to increased rainfall. While no fruit expulsion was observed in 1997, a dry year, in the wetter 1998 around 20% of all fruits formed were expelled from the maternal plant. A greenhouse experiment showed that high moisture results in the plants expelling all their fruits. Because in 1998 establishment was five times higher than in 1997, this response seems to be highly adaptive: Active fruit expulsion and consequent seed release increases the probability of establishment during pulses of high precipitation.2013-04-05T18:45:38Z2013-04-05T18:45:38Z2013-04-05T18:45:38Z2013-04-05T18:45:38Z2009info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlePeters, EM; Martorell, C; Ezcurra, E (2009). The adaptive value of cued dispersal in desert plants: seed retention and release in Mammillaria pectinifera, a small globose cactus. The American Journal of Botany 96:1-6.15372197http://hdl.handle.net/11154/14115210.3732/ajb.0800157http://www.amjbot.org/content/96/2/537.long96(2):537-541reponame:Sistema de Información de la Facultad de Ciencias, UNAMinstname:Universidad Nacional Autónoma de Méxicoinstacron:UNAMENThe American Journal of Botanyinfo:eu-repo/semantics/openAccessoai:repositorio.fciencias.unam.mx:11154/1411522025-09-17T19:24:34Z
dc.title.none.fl_str_mv The adaptive value of cued dispersal in desert plants: seed retention and release in Mammillaria pectinifera, a small globose cactus
title The adaptive value of cued dispersal in desert plants: seed retention and release in Mammillaria pectinifera, a small globose cactus
spellingShingle The adaptive value of cued dispersal in desert plants: seed retention and release in Mammillaria pectinifera, a small globose cactus
Peters, EM
Bet-hedging
Cactaceae
environmental triggers
Mammillaria
Mexico; serotiny
Tehuacán Valley
title_short The adaptive value of cued dispersal in desert plants: seed retention and release in Mammillaria pectinifera, a small globose cactus
title_full The adaptive value of cued dispersal in desert plants: seed retention and release in Mammillaria pectinifera, a small globose cactus
title_fullStr The adaptive value of cued dispersal in desert plants: seed retention and release in Mammillaria pectinifera, a small globose cactus
title_full_unstemmed The adaptive value of cued dispersal in desert plants: seed retention and release in Mammillaria pectinifera, a small globose cactus
title_sort The adaptive value of cued dispersal in desert plants: seed retention and release in Mammillaria pectinifera, a small globose cactus
dc.creator.none.fl_str_mv Peters, EM
Martorell-Delgado, Carlos
Ezcurra, E
author Peters, EM
author_facet Peters, EM
Martorell-Delgado, Carlos
Ezcurra, E
author_role author
author2 Martorell-Delgado, Carlos
Ezcurra, E
author2_role author
author
dc.subject.none.fl_str_mv Bet-hedging
Cactaceae
environmental triggers
Mammillaria
Mexico; serotiny
Tehuacán Valley
topic Bet-hedging
Cactaceae
environmental triggers
Mammillaria
Mexico; serotiny
Tehuacán Valley
description Serotiny, or delayed seed dispersal, is common in fluctuating environments because it hedges the risks of establishment. Mammillaria pectinifera (Cactaceae) facultatively expels fruits in the year they are produced or retains them to disperse the seed over several years. We tested whether M. pectinifera increased fruit expulsion as a response to increased rainfall. While no fruit expulsion was observed in 1997, a dry year, in the wetter 1998 around 20% of all fruits formed were expelled from the maternal plant. A greenhouse experiment showed that high moisture results in the plants expelling all their fruits. Because in 1998 establishment was five times higher than in 1997, this response seems to be highly adaptive: Active fruit expulsion and consequent seed release increases the probability of establishment during pulses of high precipitation.
publishDate 2009
dc.date.none.fl_str_mv 2009
2013-04-05T18:45:38Z
2013-04-05T18:45:38Z
2013-04-05T18:45:38Z
2013-04-05T18:45:38Z
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv Peters, EM; Martorell, C; Ezcurra, E (2009). The adaptive value of cued dispersal in desert plants: seed retention and release in Mammillaria pectinifera, a small globose cactus. The American Journal of Botany 96:1-6.
15372197
http://hdl.handle.net/11154/141152
10.3732/ajb.0800157
identifier_str_mv Peters, EM; Martorell, C; Ezcurra, E (2009). The adaptive value of cued dispersal in desert plants: seed retention and release in Mammillaria pectinifera, a small globose cactus. The American Journal of Botany 96:1-6.
15372197
10.3732/ajb.0800157
url http://hdl.handle.net/11154/141152
dc.language.none.fl_str_mv EN
language_invalid_str_mv EN
dc.relation.none.fl_str_mv The American Journal of Botany
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv http://www.amjbot.org/content/96/2/537.long
96(2):537-541
reponame:Sistema de Información de la Facultad de Ciencias, UNAM
instname:Universidad Nacional Autónoma de México
instacron:UNAM
instname_str Universidad Nacional Autónoma de México
instacron_str UNAM
institution UNAM
reponame_str Sistema de Información de la Facultad de Ciencias, UNAM
collection Sistema de Información de la Facultad de Ciencias, UNAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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