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Título: | Sex determination by morphological measurements of black-browed albatrosses (Thalassarche melanophrys) using discriminant analysis |
Autor: | Ferrer, Miguel CSIC ; Morandini, Virginia CSIC ORCID CVN; Perry, Lynelle; Bechard, Marc | Palabras clave: | sea birds Black-browed Albatross forearm Morphometrics discriminant analysis Sex determination Thalassarche melanophrys upper bill depth |
Fecha de publicación: | 1-sep-2016 | Editor: | BioOne | Citación: | Waterbirds 39(3): 295-299 (2016) | Resumen: | To provide an easy and reliable work tool to identify the sex of individuals, adult Black-browed Albatrosses (Thalassarche melanophrys) (n = 31) were weighed and measured, and the sex determined using DNA analyses. Stepwise discriminant analysis showed upper bill depth and weight to be the best predictor variables for sex determination. This model classified correctly 95.0% of the males and 81.8% of the females (overall success was 90.3%). Additionally, a single measure discriminant analysis of upper bill depth was developed that is able to separate sexes using a threshold upper bill depth of 29.87 mm, with values above this point being males and values below it being females. | Versión del editor: | https://doi.org/10.1675/063.039.0309 | URI: | http://hdl.handle.net/10261/196997 | DOI: | 10.1675/063.039.0309 | ISSN: | 1524-4695 | E-ISSN: | 1938-5390 |
Aparece en las colecciones: | (EBD) Artículos |
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