Abstract:
Male and female Kelp Gulls (Larus dominicanus) are not clearly sexually dimorphic and are thus difficult to identify in the field. This paper evaluates sexual size dimorphism in this species and provides a reliable method for predicting the sex of measured individuals. Discriminant analysis of six morphometric characters of adult birds indicated that head length, bill length and bill depth were the most accurate variables for use in a discriminant function model, predicting sex with 97% accuracy. Received 12 May 2000, accepted 1 June 2000.
Registro:
Documento: |
Artículo
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Título: | Predicting the sex of kelp gulls by external measurements |
Autor: | Torlaschi, C.; Gandini, P.; Esteban, F.; Peck, R.M. |
Filiación: | Dept. de Ciencias Biologicas, Facultad de Ciencias Exactas Nat., Universidad de Buenos Aires, Estrada 1275, Puerto Deseado, Santa Cruz 9050, Argentina
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Palabras clave: | Argentina; Discriminant analyses; Kelp gull; Larus Dominicanus; Sexual demorphism; body size; seabird; sex determination; sexual dimorphism; Larus dominicanus |
Año: | 2000
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Volumen: | 23
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Número: | 3
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Página de inicio: | 518
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Página de fin: | 520
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Título revista: | Waterbirds
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Título revista abreviado: | Waterbirds
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ISSN: | 07386028
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CODEN: | WATBF
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07386028_v23_n3_p518_Torlaschi |
Referencias:
- Bosch, M., Sexual size dimorphism and determination of sex in Yellow-legged Gulls (1996) Journal of Field Ornithology, 67, pp. 534-541
- Coulson, J.C., Thomas, C.S., Butterfield, J.E.L., Duncan, N., Monaghan, P., Shedden, C., The use of head and bill length to sex live gulls Laridae (1983) Ibis, 125, pp. 549-557
- Evans, D.R., Cavanagh, P.M., French, T.W., Blodget, B.G., Identifying the sex of Massachusetts Herring Gulls by linear measurements (1995) Journal of Field Ornithology, 66, pp. 128-132
- Fox, G.A., Cooper, C.R., Ryder, J.P., Predicting the sex of Herring Gulls by using external measurements (1981) Journal of Field Ornithology, 52, pp. 1-9
- Frank, R.E., Massy, W.F., Morrison, D.G., Bias in multiple discriminant analysis (1965) Journal of Marketing Research, 2, pp. 250-258
- Frere, E., Gandini, P., La expansión de la Gaviota Común (Larus diminicanus) y su influencia sobre la nidificación del Pingüino de Magallanes (Spheniscus magellanicus) en la colonia de Cabo Virgenes (1991) IV Congreso De Ornitología Neotropical, p. 19. , Quito, Ecuador
- Gil, M., Harvey, M.A., Beldomenico, H., Garcia, S., Commendatore, M., Gandini, P., Frere, E., Esteves, J.L., Contaminación por metales y plaguicidas organoclorados en organismos marinos de la zona costera patagónica (1997) Informes Técnicos Del Plan De Manejo Integrado De La Zona Costera Patagónica, 32, pp. 1-28
- Hanners, I.A., Patton, S.R., Sexing Laughing Gulls using external measurements and discriminant analysis (1985) Journal of Field Ornithology, 56, pp. 158-164
- Mawhinney, K., Diamond, T., Sex determination of Great Black-blacked Gulls using morphometric characters (1999) Journal of Field Ornithology, 70, pp. 206-210
Citas:
---------- APA ----------
Torlaschi, C., Gandini, P., Esteban, F. & Peck, R.M.
(2000)
. Predicting the sex of kelp gulls by external measurements. Waterbirds, 23(3), 518-520.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07386028_v23_n3_p518_Torlaschi [ ]
---------- CHICAGO ----------
Torlaschi, C., Gandini, P., Esteban, F., Peck, R.M.
"Predicting the sex of kelp gulls by external measurements"
. Waterbirds 23, no. 3
(2000) : 518-520.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07386028_v23_n3_p518_Torlaschi [ ]
---------- MLA ----------
Torlaschi, C., Gandini, P., Esteban, F., Peck, R.M.
"Predicting the sex of kelp gulls by external measurements"
. Waterbirds, vol. 23, no. 3, 2000, pp. 518-520.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07386028_v23_n3_p518_Torlaschi [ ]
---------- VANCOUVER ----------
Torlaschi, C., Gandini, P., Esteban, F., Peck, R.M. Predicting the sex of kelp gulls by external measurements. Waterbirds. 2000;23(3):518-520.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07386028_v23_n3_p518_Torlaschi [ ]