Male mating rate is constrained by seminal fluid availability in bedbugs, Cimex lectularius.

Sexual selection, differences in reproductive success between individuals, continues beyond acquiring a mating partner and affects ejaculate size and composition (sperm competition). Sperm and seminal fluid have very different roles in sperm competition but both components encompass production costs...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Klaus Reinhardt, Richard Naylor, Michael T Siva-Jothy
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2011
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0ad67da2f3044872bf28df02969e8842
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:0ad67da2f3044872bf28df02969e8842
record_format	dspace
spelling	oai:doaj.org-article:0ad67da2f3044872bf28df02969e88422021-11-18T06:50:27ZMale mating rate is constrained by seminal fluid availability in bedbugs, Cimex lectularius.1932-620310.1371/journal.pone.0022082https://doaj.org/article/0ad67da2f3044872bf28df02969e88422011-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21779378/?tool=EBIhttps://doaj.org/toc/1932-6203Sexual selection, differences in reproductive success between individuals, continues beyond acquiring a mating partner and affects ejaculate size and composition (sperm competition). Sperm and seminal fluid have very different roles in sperm competition but both components encompass production costs for the male. Theoretical models predict that males should spend ejaculate components prudently and differently for sperm and seminal fluid but empirical evidence for independent variation of sperm number and seminal fluid volume is scarce. It is also largely unknown how sperm and seminal fluid variation affect future mating rate. In bedbugs we developed a protocol to examine the role of seminal fluids in ejaculate allocation and its effect on future male mating rate. Using age-related changes in sperm and seminal fluid volume we estimated the lowest capacity at which mating activity started. We then showed that sexually active males allocate 12% of their sperm and 19% of their seminal fluid volume per mating and predicted that males would be depleted of seminal fluid but not of sperm. We tested (and confirmed) this prediction empirically. Finally, the slightly faster replenishment of seminal fluid compared to sperm did not outweigh the faster decrease during mating. Our results suggest that male mating rate can be constrained by the availability of seminal fluids. Our protocol might be applicable to a range of other organisms. We discuss the idea that economic considerations in sexual conflict research might benefit from distinguishing between costs and benefits that are ejaculate dose-dependent and those that are frequency-dependent on the mating rate per se.Klaus ReinhardtRichard NaylorMichael T Siva-JothyPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 6, Iss 7, p e22082 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Klaus Reinhardt Richard Naylor Michael T Siva-Jothy Male mating rate is constrained by seminal fluid availability in bedbugs, Cimex lectularius.
description	Sexual selection, differences in reproductive success between individuals, continues beyond acquiring a mating partner and affects ejaculate size and composition (sperm competition). Sperm and seminal fluid have very different roles in sperm competition but both components encompass production costs for the male. Theoretical models predict that males should spend ejaculate components prudently and differently for sperm and seminal fluid but empirical evidence for independent variation of sperm number and seminal fluid volume is scarce. It is also largely unknown how sperm and seminal fluid variation affect future mating rate. In bedbugs we developed a protocol to examine the role of seminal fluids in ejaculate allocation and its effect on future male mating rate. Using age-related changes in sperm and seminal fluid volume we estimated the lowest capacity at which mating activity started. We then showed that sexually active males allocate 12% of their sperm and 19% of their seminal fluid volume per mating and predicted that males would be depleted of seminal fluid but not of sperm. We tested (and confirmed) this prediction empirically. Finally, the slightly faster replenishment of seminal fluid compared to sperm did not outweigh the faster decrease during mating. Our results suggest that male mating rate can be constrained by the availability of seminal fluids. Our protocol might be applicable to a range of other organisms. We discuss the idea that economic considerations in sexual conflict research might benefit from distinguishing between costs and benefits that are ejaculate dose-dependent and those that are frequency-dependent on the mating rate per se.
format	article
author	Klaus Reinhardt Richard Naylor Michael T Siva-Jothy
author_facet	Klaus Reinhardt Richard Naylor Michael T Siva-Jothy
author_sort	Klaus Reinhardt
title	Male mating rate is constrained by seminal fluid availability in bedbugs, Cimex lectularius.
title_short	Male mating rate is constrained by seminal fluid availability in bedbugs, Cimex lectularius.
title_full	Male mating rate is constrained by seminal fluid availability in bedbugs, Cimex lectularius.
title_fullStr	Male mating rate is constrained by seminal fluid availability in bedbugs, Cimex lectularius.
title_full_unstemmed	Male mating rate is constrained by seminal fluid availability in bedbugs, Cimex lectularius.
title_sort	male mating rate is constrained by seminal fluid availability in bedbugs, cimex lectularius.
publisher	Public Library of Science (PLoS)
publishDate	2011
url	https://doaj.org/article/0ad67da2f3044872bf28df02969e8842
work_keys_str_mv	AT klausreinhardt malematingrateisconstrainedbyseminalfluidavailabilityinbedbugscimexlectularius AT richardnaylor malematingrateisconstrainedbyseminalfluidavailabilityinbedbugscimexlectularius AT michaeltsivajothy malematingrateisconstrainedbyseminalfluidavailabilityinbedbugscimexlectularius
_version_	1718424270682456064

Male mating rate is constrained by seminal fluid availability in bedbugs, Cimex lectularius.

Ejemplares similares