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dc.contributor.author
Vrech, David Eduardo  
dc.contributor.author
Nime, Mónica Fernanda  
dc.contributor.author
Mattoni, Camilo Ivan  
dc.contributor.author
Peretti, Alfredo Vicente  
dc.date.available
2018-08-21T18:16:34Z  
dc.date.issued
2016-03  
dc.identifier.citation
Vrech, David Eduardo; Nime, Mónica Fernanda; Mattoni, Camilo Ivan; Peretti, Alfredo Vicente; Intra-male sperm variability: Is there heteromorphism in scorpions (Arachnida, Scorpiones)?; Elsevier Gmbh; Zoologischer Anzeiger; 261; 3-2016; 12-21  
dc.identifier.issn
0044-5231  
dc.identifier.uri
http://hdl.handle.net/11336/56376  
dc.description.abstract
There is a natural range of variation in sperm morphology inside males. This variation may be adaptive or a result of poor quality control of sperm production. Sperm aggregates can also show different morphologies inside ejaculates. Preliminary analyses in scorpions suggest the existence of a sperm package morphological variation. It is unclear if this is a true polymorphism. The main purpose of this analysis is to evaluate polymorphism in sperm packages of scorpions. Some species from the order showed width variation or spatial variation that was associated to the number of folds. Some ejaculates of Bothriurus bonariensis and Brachistosternus ferrugineus males showed width dimorphism, but may be related to the natural variation of sperm width. However, sperm packages in B. ferrugineus showed lower counts of spermatozoa and the apparition of these sperm packages seemed to increase at the beginning of the reproductive season in one of the species. A marked width dimorphism of sperm packages appeared inside ejaculates of Caraboctonus keyserlingi. The adaptive significance of sperm package differences is not well understood. Differences in width may be a consequence of sperm package production errors, resulting in sperm packages with fewer spermatozoa. Sperm package polymorphism in C. keyserlingi may be linked to sperm competition risk and may be associated to other characters and strategies. Alternative hypotheses to the pattern found are further analyzed and discussed within a sexual selection framework.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Elsevier Gmbh  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Bothriuridae  
dc.subject
Reproductive Strategies  
dc.subject
Sexual Selection  
dc.subject
Sperm Bundles  
dc.subject
Sperm Competition  
dc.subject
Sperm Count  
dc.subject.classification
Otras Ciencias Biológicas  
dc.subject.classification
Ciencias Biológicas  
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS  
dc.title
Intra-male sperm variability: Is there heteromorphism in scorpions (Arachnida, Scorpiones)?  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2018-08-15T13:58:33Z  
dc.journal.volume
261  
dc.journal.pagination
12-21  
dc.journal.pais
Alemania  
dc.description.fil
Fil: Vrech, David Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; Argentina  
dc.description.fil
Fil: Nime, Mónica Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinar de Biología Vegetal (P). Grupo Vinculado Centro de Relevamiento y Evaluación de Recursos Agrícolas y Naturales; Argentina  
dc.description.fil
Fil: Mattoni, Camilo Ivan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; Argentina  
dc.description.fil
Fil: Peretti, Alfredo Vicente. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; Argentina  
dc.journal.title
Zoologischer Anzeiger  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0044523115300176  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/ttp:///dx.doi.org/10.1016/j.jcz.2015.11.002