Subtitle:

Określanie płci u perkoza rdzawoszyjego za pomocą analizy DNA i pomiarów biometrycznych ; Short notes

Contributor:

Museum and Institute of Zoology, Polish Academy of Sciences

Publisher:

Museum and Institute of Zoology, Polish Academy of Sciences

Place of publishing:

Warsaw

Description:

pg(s) 176–180

Type of object:

Czasopismo/Artykuł

Abstract:

Sexual size dimorphism was analysed in the Red- necked Grebe in southeast Poland. A DNA-based procedure was utilised to sex individuals and to assess the accuracy of morphological criteria for the sex identification of adult breeding birds: discriminant analysis on the sample level and within-pair comparisons. Males were significantly larger than females in all body measurements used in the discriminant function selection process. Owing to considerable overlap in measurements, however, the sexes cannot be accurately separated by biometrics at the population scale. Sexual dimorphism was most pronounced in bill length measured from the corner of the gape to the tip, but only 79% of individuals were correctly identified on the basis of this parameter alone. When two variables, bill length and wing length, were combined, the discriminant function was of similar efficiency (80%) in determining the sex. The accuracy level of sexing may be improved by comparing mates within pairs: combined comparisons of bill length and body mass were as accurate as the genetic technique, but sex assignment was restricted to 76% of the measured pairs.

Relation:

Acta Ornithologica

Volume:

41

Issue:

2

Start page:

176

End page:

180

Detailed Resource Type:

Czasopismo

Format:

text/xml

Resource Identifier:

oai:rcin.org.pl:55611 ; 10.3161/068.041.0203

Source:

MiIZ PAN, sygn. P.4568 ; MiIZ PAN, sygn. P.257 ; click here to follow the link

Language:

eng

Language of abstract:

pol ; eng

Rights:

Prawa zastrzeżone - dostęp ograniczony

Terms of use:

Zasób chroniony prawem autorskim. Korzystanie dozwolone wyłącznie na terminalach Muzeum i Instytutu Zoologii PAN w zakresie określonym przez przepisy o dozwolonym użytku.

Digitizing institution:

Muzeum i Instytut Zoologii Polskiej Akademii Nauk

Original in:

Biblioteka Muzeum i Instytutu Zoologii PAN

Access:

Otwarty