Pre-copulatory bite wounds as evidence of aggressive competition for mating in the neotropical freshwater stingray Potamotrygon motoro
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | |
Tipo de documento: | Relatório |
Idioma: | eng |
Título da fonte: | Acta Amazonica |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672022000100045 |
Resumo: | ABSTRACT Reproductive aspects of Amazonian freshwater stingrays are still poorly studied, however, it is known that the copulatory behavior in some species is related to the hydrometric seasons (high and low water). In order to assess the reproductive activity prior to copulation, we examined bite wounds in Potamotrygon motoro of Catalão Lake, in Amazonas state, Brazil. Specimens of both sexes showed wounds on the pectoral fins. Males presented a large amount of bite wounds, distributed randomly throughout the body, while females had more bite wounds on the posterior region. The higher number of wounds in males is assumed to indicate aggressive interactions among males in competition for females, caused by attempts to prevent other males from mating with the target female. The behavior is likely owed to the confinement of the stingrays in the lake during the low-water period. |
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Pre-copulatory bite wounds as evidence of aggressive competition for mating in the neotropical freshwater stingray Potamotrygon motorodermal injuriesmale-male aggressivenessPotamotrygoninaereproductive aspectsABSTRACT Reproductive aspects of Amazonian freshwater stingrays are still poorly studied, however, it is known that the copulatory behavior in some species is related to the hydrometric seasons (high and low water). In order to assess the reproductive activity prior to copulation, we examined bite wounds in Potamotrygon motoro of Catalão Lake, in Amazonas state, Brazil. Specimens of both sexes showed wounds on the pectoral fins. Males presented a large amount of bite wounds, distributed randomly throughout the body, while females had more bite wounds on the posterior region. The higher number of wounds in males is assumed to indicate aggressive interactions among males in competition for females, caused by attempts to prevent other males from mating with the target female. The behavior is likely owed to the confinement of the stingrays in the lake during the low-water period.Instituto Nacional de Pesquisas da Amazônia2022-01-01info:eu-repo/semantics/reportinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672022000100045Acta Amazonica v.52 n.1 2022reponame:Acta Amazonicainstname:Instituto Nacional de Pesquisas da Amazônia (INPA)instacron:INPA10.1590/1809-4392202101762info:eu-repo/semantics/openAccessSHIBUYA,AkemiDUNCAN,Wallice P.eng2022-03-11T00:00:00Zoai:scielo:S0044-59672022000100045Revistahttps://acta.inpa.gov.br/PUBhttps://old.scielo.br/oai/scielo-oai.phpacta@inpa.gov.br||acta@inpa.gov.br1809-43920044-5967opendoar:2022-03-11T00:00Acta Amazonica - Instituto Nacional de Pesquisas da Amazônia (INPA)false |
dc.title.none.fl_str_mv |
Pre-copulatory bite wounds as evidence of aggressive competition for mating in the neotropical freshwater stingray Potamotrygon motoro |
title |
Pre-copulatory bite wounds as evidence of aggressive competition for mating in the neotropical freshwater stingray Potamotrygon motoro |
spellingShingle |
Pre-copulatory bite wounds as evidence of aggressive competition for mating in the neotropical freshwater stingray Potamotrygon motoro SHIBUYA,Akemi dermal injuries male-male aggressiveness Potamotrygoninae reproductive aspects |
title_short |
Pre-copulatory bite wounds as evidence of aggressive competition for mating in the neotropical freshwater stingray Potamotrygon motoro |
title_full |
Pre-copulatory bite wounds as evidence of aggressive competition for mating in the neotropical freshwater stingray Potamotrygon motoro |
title_fullStr |
Pre-copulatory bite wounds as evidence of aggressive competition for mating in the neotropical freshwater stingray Potamotrygon motoro |
title_full_unstemmed |
Pre-copulatory bite wounds as evidence of aggressive competition for mating in the neotropical freshwater stingray Potamotrygon motoro |
title_sort |
Pre-copulatory bite wounds as evidence of aggressive competition for mating in the neotropical freshwater stingray Potamotrygon motoro |
author |
SHIBUYA,Akemi |
author_facet |
SHIBUYA,Akemi DUNCAN,Wallice P. |
author_role |
author |
author2 |
DUNCAN,Wallice P. |
author2_role |
author |
dc.contributor.author.fl_str_mv |
SHIBUYA,Akemi DUNCAN,Wallice P. |
dc.subject.por.fl_str_mv |
dermal injuries male-male aggressiveness Potamotrygoninae reproductive aspects |
topic |
dermal injuries male-male aggressiveness Potamotrygoninae reproductive aspects |
description |
ABSTRACT Reproductive aspects of Amazonian freshwater stingrays are still poorly studied, however, it is known that the copulatory behavior in some species is related to the hydrometric seasons (high and low water). In order to assess the reproductive activity prior to copulation, we examined bite wounds in Potamotrygon motoro of Catalão Lake, in Amazonas state, Brazil. Specimens of both sexes showed wounds on the pectoral fins. Males presented a large amount of bite wounds, distributed randomly throughout the body, while females had more bite wounds on the posterior region. The higher number of wounds in males is assumed to indicate aggressive interactions among males in competition for females, caused by attempts to prevent other males from mating with the target female. The behavior is likely owed to the confinement of the stingrays in the lake during the low-water period. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/report |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
report |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672022000100045 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672022000100045 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1809-4392202101762 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Instituto Nacional de Pesquisas da Amazônia |
publisher.none.fl_str_mv |
Instituto Nacional de Pesquisas da Amazônia |
dc.source.none.fl_str_mv |
Acta Amazonica v.52 n.1 2022 reponame:Acta Amazonica instname:Instituto Nacional de Pesquisas da Amazônia (INPA) instacron:INPA |
instname_str |
Instituto Nacional de Pesquisas da Amazônia (INPA) |
instacron_str |
INPA |
institution |
INPA |
reponame_str |
Acta Amazonica |
collection |
Acta Amazonica |
repository.name.fl_str_mv |
Acta Amazonica - Instituto Nacional de Pesquisas da Amazônia (INPA) |
repository.mail.fl_str_mv |
acta@inpa.gov.br||acta@inpa.gov.br |
_version_ |
1752129841563435008 |