Morphometric differences between sexes of two subspecies of black-crowned night heron (Nycticorax nycticorax) using discriminant analysis

Autores
Piro, Alejandra; Fuchs, Daniela Viviana; Montalti, Diego
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The objective of this study was to develop tools for distinguishing between sexes of the two Blackcrowned Night-Heron (Nycticorax nycticorax) subspecies (N. n. obscurus and N. n. hoactli) using discriminant function analysis. Significant differences were found in length of the culmen, length of the bill from the gape, and length of the wing chord between the sexes of each subspecies, with males being larger than females. The resulting discriminant functions were able to differentiate between the sexes of each studied subspecies and between subspecies after determining the sex of the individuals (with a correct classification of 77.8% for females and 97.8% for males). In females, all morphometrics were greater for N. n. obscurus than N. n. hoactli; this was also the case for males, except for bill width, which was greater in N. n. hoactli. Wing chord length was the most useful measurement for constructing the discriminant functions. External morphometrics are a valuable tool not only for discriminating between N. n. hoactli and N. n. obscurus but also for sexing these subspecies.
Fil: Piro, Alejandra. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados. Sección Ornitología; Argentina
Fil: Fuchs, Daniela Viviana. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; Argentina
Fil: Montalti, Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados. Sección Ornitología; Argentina
Materia
ARDEIDAE
BLACK-CROWNED NIGHT-HERON
DISCRIMINANT FUNCTION ANALYSIS
MORPHOMETRICS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/101358
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Morphometric differences between sexes of two subspecies of black-crowned night heron (Nycticorax nycticorax) using discriminant analysisPiro, AlejandraFuchs, Daniela VivianaMontalti, DiegoARDEIDAEBLACK-CROWNED NIGHT-HERONDISCRIMINANT FUNCTION ANALYSISMORPHOMETRICShttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The objective of this study was to develop tools for distinguishing between sexes of the two Blackcrowned Night-Heron (Nycticorax nycticorax) subspecies (N. n. obscurus and N. n. hoactli) using discriminant function analysis. Significant differences were found in length of the culmen, length of the bill from the gape, and length of the wing chord between the sexes of each subspecies, with males being larger than females. The resulting discriminant functions were able to differentiate between the sexes of each studied subspecies and between subspecies after determining the sex of the individuals (with a correct classification of 77.8% for females and 97.8% for males). In females, all morphometrics were greater for N. n. obscurus than N. n. hoactli; this was also the case for males, except for bill width, which was greater in N. n. hoactli. Wing chord length was the most useful measurement for constructing the discriminant functions. External morphometrics are a valuable tool not only for discriminating between N. n. hoactli and N. n. obscurus but also for sexing these subspecies.Fil: Piro, Alejandra. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados. Sección Ornitología; ArgentinaFil: Fuchs, Daniela Viviana. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; ArgentinaFil: Montalti, Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados. Sección Ornitología; ArgentinaWaterbird Society2018-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/101358Piro, Alejandra; Fuchs, Daniela Viviana; Montalti, Diego; Morphometric differences between sexes of two subspecies of black-crowned night heron (Nycticorax nycticorax) using discriminant analysis; Waterbird Society; Waterbirds; 4; 1; 2-2018; 87-921524-4695CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://bioone.org/journals/Waterbirds/volume-41/issue-1/063.041.0112/Morphometric-Differences-Between-Sexes-of-Two-Subspecies-of-Black-crowned/10.1675/063.041.0112.shortinfo:eu-repo/semantics/altIdentifier/doi/10.1675/063.041.0112info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:39:33Zoai:ri.conicet.gov.ar:11336/101358instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:39:33.468CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Morphometric differences between sexes of two subspecies of black-crowned night heron (Nycticorax nycticorax) using discriminant analysis
title Morphometric differences between sexes of two subspecies of black-crowned night heron (Nycticorax nycticorax) using discriminant analysis
spellingShingle Morphometric differences between sexes of two subspecies of black-crowned night heron (Nycticorax nycticorax) using discriminant analysis
Piro, Alejandra
ARDEIDAE
BLACK-CROWNED NIGHT-HERON
DISCRIMINANT FUNCTION ANALYSIS
MORPHOMETRICS
title_short Morphometric differences between sexes of two subspecies of black-crowned night heron (Nycticorax nycticorax) using discriminant analysis
title_full Morphometric differences between sexes of two subspecies of black-crowned night heron (Nycticorax nycticorax) using discriminant analysis
title_fullStr Morphometric differences between sexes of two subspecies of black-crowned night heron (Nycticorax nycticorax) using discriminant analysis
title_full_unstemmed Morphometric differences between sexes of two subspecies of black-crowned night heron (Nycticorax nycticorax) using discriminant analysis
title_sort Morphometric differences between sexes of two subspecies of black-crowned night heron (Nycticorax nycticorax) using discriminant analysis
dc.creator.none.fl_str_mv Piro, Alejandra
Fuchs, Daniela Viviana
Montalti, Diego
author Piro, Alejandra
author_facet Piro, Alejandra
Fuchs, Daniela Viviana
Montalti, Diego
author_role author
author2 Fuchs, Daniela Viviana
Montalti, Diego
author2_role author
author
dc.subject.none.fl_str_mv ARDEIDAE
BLACK-CROWNED NIGHT-HERON
DISCRIMINANT FUNCTION ANALYSIS
MORPHOMETRICS
topic ARDEIDAE
BLACK-CROWNED NIGHT-HERON
DISCRIMINANT FUNCTION ANALYSIS
MORPHOMETRICS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The objective of this study was to develop tools for distinguishing between sexes of the two Blackcrowned Night-Heron (Nycticorax nycticorax) subspecies (N. n. obscurus and N. n. hoactli) using discriminant function analysis. Significant differences were found in length of the culmen, length of the bill from the gape, and length of the wing chord between the sexes of each subspecies, with males being larger than females. The resulting discriminant functions were able to differentiate between the sexes of each studied subspecies and between subspecies after determining the sex of the individuals (with a correct classification of 77.8% for females and 97.8% for males). In females, all morphometrics were greater for N. n. obscurus than N. n. hoactli; this was also the case for males, except for bill width, which was greater in N. n. hoactli. Wing chord length was the most useful measurement for constructing the discriminant functions. External morphometrics are a valuable tool not only for discriminating between N. n. hoactli and N. n. obscurus but also for sexing these subspecies.
Fil: Piro, Alejandra. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados. Sección Ornitología; Argentina
Fil: Fuchs, Daniela Viviana. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; Argentina
Fil: Montalti, Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados. Sección Ornitología; Argentina
description The objective of this study was to develop tools for distinguishing between sexes of the two Blackcrowned Night-Heron (Nycticorax nycticorax) subspecies (N. n. obscurus and N. n. hoactli) using discriminant function analysis. Significant differences were found in length of the culmen, length of the bill from the gape, and length of the wing chord between the sexes of each subspecies, with males being larger than females. The resulting discriminant functions were able to differentiate between the sexes of each studied subspecies and between subspecies after determining the sex of the individuals (with a correct classification of 77.8% for females and 97.8% for males). In females, all morphometrics were greater for N. n. obscurus than N. n. hoactli; this was also the case for males, except for bill width, which was greater in N. n. hoactli. Wing chord length was the most useful measurement for constructing the discriminant functions. External morphometrics are a valuable tool not only for discriminating between N. n. hoactli and N. n. obscurus but also for sexing these subspecies.
publishDate 2018
dc.date.none.fl_str_mv 2018-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/101358
Piro, Alejandra; Fuchs, Daniela Viviana; Montalti, Diego; Morphometric differences between sexes of two subspecies of black-crowned night heron (Nycticorax nycticorax) using discriminant analysis; Waterbird Society; Waterbirds; 4; 1; 2-2018; 87-92
1524-4695
CONICET Digital
CONICET
url http://hdl.handle.net/11336/101358
identifier_str_mv Piro, Alejandra; Fuchs, Daniela Viviana; Montalti, Diego; Morphometric differences between sexes of two subspecies of black-crowned night heron (Nycticorax nycticorax) using discriminant analysis; Waterbird Society; Waterbirds; 4; 1; 2-2018; 87-92
1524-4695
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://bioone.org/journals/Waterbirds/volume-41/issue-1/063.041.0112/Morphometric-Differences-Between-Sexes-of-Two-Subspecies-of-Black-crowned/10.1675/063.041.0112.short
info:eu-repo/semantics/altIdentifier/doi/10.1675/063.041.0112
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Waterbird Society
publisher.none.fl_str_mv Waterbird Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.069144

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