Inny tytuł:

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

Współtwórca:

Museum and Institute of Zoology, Polish Academy of Sciences

Wydawca:

Museum and Institute of Zoology, Polish Academy of Sciences

Miejsce wydania:

Warsaw

Opis:

pg(s) 176–180

Typ obiektu:

Journal/Article

Abstrakt:

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.

Czasopismo/Seria/cykl:

Acta Ornithologica

Tom:

41

Zeszyt:

2

Strona pocz.:

176

Strona końc.:

180

Szczegółowy typ zasobu:

Journal

Format:

text/xml

Identyfikator zasobu:

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

Źródło:

MiIZ PAN, call no. P.257 ; MiIZ PAN, call no. P.4568 ; kliknij tutaj, żeby przejść

Język:

eng

Język streszczenia:

pol ; eng

Prawa:

Rights Reserved - Restricted Access

Zasady wykorzystania:

Copyright-protected material. Access only on terminals at the Museum and Institute of Zoology of the Polish Academy of Sciences, may be used within the limits of statutory user freedoms.

Digitalizacja:

Museum and Institute of Zoology of the Polish Academy of Sciences

Lokalizacja oryginału:

Library of the Museum and Institute of Zoology of the Polish Academy of Sciences

Dostęp:

Open