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dc.contributor.author
Cassini, Marcelo Hernan
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dc.date.available
2023-10-25T14:26:05Z
dc.date.issued
2022-06
dc.identifier.citation
Cassini, Marcelo Hernan; Measuring sexual selection in mammals; Associazione Teriologica Italiana; Hystrix; 33; 2; 6-2022; 123-125
dc.identifier.issn
0394-1914
dc.identifier.uri
http://hdl.handle.net/11336/215893
dc.description.abstract
Sexual selection has been increasingly acknowledged as a major evolutionary driver in many taxa. An unequal mating success arising through competition over mates is the phenomenon that defines sexual selection. Therefore, demonstrating the presence of sexual selection requires that the number or quality of mates are spread less evenly than random processes would suggest. The objective of this study was to estimate the extent of this inequality in male mammals by reviewing studies that measure variance in genetic paternity. I found that few species showed high values of the standardised variances in male reproductive success, Im, and Nonacs´s B indices. These species differed from those with low or medium values in that, while in the latter the females breed solitary, in the former, they are grouped for reproduction, which possibly facilitates mate monopolization by males. Low levels of variance in reproductive success could be explained because most species of mammals breed solitary or due to high rates of extra-pair copulations by ‘subordinate’ males.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Associazione Teriologica Italiana
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Natural selection
dc.subject
Body size
dc.subject
Mammal
dc.subject
Polygyny
dc.subject.classification
Biología
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Measuring sexual selection in mammals
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-10-25T10:05:42Z
dc.identifier.eissn
1825-5272
dc.journal.volume
33
dc.journal.number
2
dc.journal.pagination
123-125
dc.journal.pais
Italia
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dc.journal.ciudad
Roma
dc.description.fil
Fil: Cassini, Marcelo Hernan. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; Argentina
dc.journal.title
Hystrix
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.italian-journal-of-mammalogy.it/pdf-155198-91240?filename=Measuring%20sexual.pdf
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