The reliability of morphometric discriminant functions in determining the sex of Chilean flamingos Phoenicopterus chilensis
- Autores
- Montalti, Diego; Graña Grilli, Maricel; Maragliano, René E.; Cassini, Guillermo Hernán
- Año de publicación
- 2012
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Monomorphic birds cannot be sexed visually and discriminant functions on the basis of external morphological variations are frequently used. Our objective was to evaluate the reliability of sex classification functions created from structural measurements of Chilean flamingos Phoenicopterus chilensis museum skins for the gender assignment of live birds. Five meas-urements were used to develop four discriminant functions: culmen, bill height and width, tarsus length and middle toe claw. The functions were tested on a sample of live flamingos from a zoo. The best classification for museum flamingos was given by a function using tarsus length, bill width and middle toe claw (97%). However, this function did not give the best classification for the zoo-based flamingos (81%) which had the best sex assignment by a function including measurements of tarsus, culmen and bill height and width (85%). This shows that a function giving good results in the sample from which it originated may not be as good when applied to another group of animals. Our study emphasizes the need for assessing the accuracy of a function by testing it with other methods to ensure its suitability when being applied.
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; Argentina
Fil: Graña Grilli, Maricel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina
Fil: Maragliano, René E.. Jardín Zoológico de La Plata; Argentina
Fil: Cassini, Guillermo Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina. Universidad Nacional de Luján. Departamento de Ciencias Básicas; Argentina - Materia
-
DISCRIMINANT FUNCTION
MORPHOMETRICS
SEX CLASSIFICATION
SEXUAL DIMORPHISM - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/104271
Ver los metadatos del registro completo
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The reliability of morphometric discriminant functions in determining the sex of Chilean flamingos Phoenicopterus chilensisMontalti, DiegoGraña Grilli, MaricelMaragliano, René E.Cassini, Guillermo HernánDISCRIMINANT FUNCTIONMORPHOMETRICSSEX CLASSIFICATIONSEXUAL DIMORPHISMhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Monomorphic birds cannot be sexed visually and discriminant functions on the basis of external morphological variations are frequently used. Our objective was to evaluate the reliability of sex classification functions created from structural measurements of Chilean flamingos Phoenicopterus chilensis museum skins for the gender assignment of live birds. Five meas-urements were used to develop four discriminant functions: culmen, bill height and width, tarsus length and middle toe claw. The functions were tested on a sample of live flamingos from a zoo. The best classification for museum flamingos was given by a function using tarsus length, bill width and middle toe claw (97%). However, this function did not give the best classification for the zoo-based flamingos (81%) which had the best sex assignment by a function including measurements of tarsus, culmen and bill height and width (85%). This shows that a function giving good results in the sample from which it originated may not be as good when applied to another group of animals. Our study emphasizes the need for assessing the accuracy of a function by testing it with other methods to ensure its suitability when being applied.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; ArgentinaFil: Graña Grilli, Maricel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; ArgentinaFil: Maragliano, René E.. Jardín Zoológico de La Plata; ArgentinaFil: Cassini, Guillermo Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina. Universidad Nacional de Luján. Departamento de Ciencias Básicas; ArgentinaChinese Academy of Sciences2012-12-01info: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/11336/104271Montalti, Diego; Graña Grilli, Maricel; Maragliano, René E.; Cassini, Guillermo Hernán; The reliability of morphometric discriminant functions in determining the sex of Chilean flamingos Phoenicopterus chilensis; Chinese Academy of Sciences; Current Zoology; 58; 6; 1-12-2012; 851-8551674-5507CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/cz/article/58/6/851/1845112info:eu-repo/semantics/altIdentifier/doi/10.1093/czoolo/58.6.851info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:46:09Zoai:ri.conicet.gov.ar:11336/104271instacron: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:34982025-09-03 09:46:10.929CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
The reliability of morphometric discriminant functions in determining the sex of Chilean flamingos Phoenicopterus chilensis |
title |
The reliability of morphometric discriminant functions in determining the sex of Chilean flamingos Phoenicopterus chilensis |
spellingShingle |
The reliability of morphometric discriminant functions in determining the sex of Chilean flamingos Phoenicopterus chilensis Montalti, Diego DISCRIMINANT FUNCTION MORPHOMETRICS SEX CLASSIFICATION SEXUAL DIMORPHISM |
title_short |
The reliability of morphometric discriminant functions in determining the sex of Chilean flamingos Phoenicopterus chilensis |
title_full |
The reliability of morphometric discriminant functions in determining the sex of Chilean flamingos Phoenicopterus chilensis |
title_fullStr |
The reliability of morphometric discriminant functions in determining the sex of Chilean flamingos Phoenicopterus chilensis |
title_full_unstemmed |
The reliability of morphometric discriminant functions in determining the sex of Chilean flamingos Phoenicopterus chilensis |
title_sort |
The reliability of morphometric discriminant functions in determining the sex of Chilean flamingos Phoenicopterus chilensis |
dc.creator.none.fl_str_mv |
Montalti, Diego Graña Grilli, Maricel Maragliano, René E. Cassini, Guillermo Hernán |
author |
Montalti, Diego |
author_facet |
Montalti, Diego Graña Grilli, Maricel Maragliano, René E. Cassini, Guillermo Hernán |
author_role |
author |
author2 |
Graña Grilli, Maricel Maragliano, René E. Cassini, Guillermo Hernán |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
DISCRIMINANT FUNCTION MORPHOMETRICS SEX CLASSIFICATION SEXUAL DIMORPHISM |
topic |
DISCRIMINANT FUNCTION MORPHOMETRICS SEX CLASSIFICATION SEXUAL DIMORPHISM |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Monomorphic birds cannot be sexed visually and discriminant functions on the basis of external morphological variations are frequently used. Our objective was to evaluate the reliability of sex classification functions created from structural measurements of Chilean flamingos Phoenicopterus chilensis museum skins for the gender assignment of live birds. Five meas-urements were used to develop four discriminant functions: culmen, bill height and width, tarsus length and middle toe claw. The functions were tested on a sample of live flamingos from a zoo. The best classification for museum flamingos was given by a function using tarsus length, bill width and middle toe claw (97%). However, this function did not give the best classification for the zoo-based flamingos (81%) which had the best sex assignment by a function including measurements of tarsus, culmen and bill height and width (85%). This shows that a function giving good results in the sample from which it originated may not be as good when applied to another group of animals. Our study emphasizes the need for assessing the accuracy of a function by testing it with other methods to ensure its suitability when being applied. 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; Argentina Fil: Graña Grilli, Maricel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina Fil: Maragliano, René E.. Jardín Zoológico de La Plata; Argentina Fil: Cassini, Guillermo Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina. Universidad Nacional de Luján. Departamento de Ciencias Básicas; Argentina |
description |
Monomorphic birds cannot be sexed visually and discriminant functions on the basis of external morphological variations are frequently used. Our objective was to evaluate the reliability of sex classification functions created from structural measurements of Chilean flamingos Phoenicopterus chilensis museum skins for the gender assignment of live birds. Five meas-urements were used to develop four discriminant functions: culmen, bill height and width, tarsus length and middle toe claw. The functions were tested on a sample of live flamingos from a zoo. The best classification for museum flamingos was given by a function using tarsus length, bill width and middle toe claw (97%). However, this function did not give the best classification for the zoo-based flamingos (81%) which had the best sex assignment by a function including measurements of tarsus, culmen and bill height and width (85%). This shows that a function giving good results in the sample from which it originated may not be as good when applied to another group of animals. Our study emphasizes the need for assessing the accuracy of a function by testing it with other methods to ensure its suitability when being applied. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-12-01 |
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/11336/104271 Montalti, Diego; Graña Grilli, Maricel; Maragliano, René E.; Cassini, Guillermo Hernán; The reliability of morphometric discriminant functions in determining the sex of Chilean flamingos Phoenicopterus chilensis; Chinese Academy of Sciences; Current Zoology; 58; 6; 1-12-2012; 851-855 1674-5507 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/104271 |
identifier_str_mv |
Montalti, Diego; Graña Grilli, Maricel; Maragliano, René E.; Cassini, Guillermo Hernán; The reliability of morphometric discriminant functions in determining the sex of Chilean flamingos Phoenicopterus chilensis; Chinese Academy of Sciences; Current Zoology; 58; 6; 1-12-2012; 851-855 1674-5507 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://academic.oup.com/cz/article/58/6/851/1845112 info:eu-repo/semantics/altIdentifier/doi/10.1093/czoolo/58.6.851 |
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 |
Chinese Academy of Sciences |
publisher.none.fl_str_mv |
Chinese Academy of Sciences |
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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1842268777067053056 |
score |
13.13397 |