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Mammalia

Editor-in-Chief: Denys, Christiane

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Hair structure of small rodents from central Argentina: A tool for species identification

Regino Cavia1 / Analía Andrade2 / Martín E. Zamero3 / María S. Fernández4 / Emiliano Muschetto5 / Gerardo R. Cueto6 / Olga V. Suárez7

1Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina and Concejo Nacional de Investigaciones Científicas y Tecnológicas, Argentina

2Concejo Nacional de Investigaciones Científicas y Tecnológicas, Argentina

3Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina

4Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina and Concejo Nacional de Investigaciones Científicas y Tecnológicas, Argentina

5Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina and Concejo Nacional de Investigaciones Científicas y Tecnológicas, Argentina

6Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina

7Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina and Concejo Nacional de Investigaciones Científicas y Tecnológicas, Argentina

Corresponding author

Citation Information: mammalia. Volume 72, Issue 1, Pages 35–43, ISSN (Online) 18641547, ISSN (Print) 00251461, DOI: 10.1515/MAMM.2008.009, March 2008

Publication History

Published Online:
2008-03-17

Abstract

Mammal hairs differ among species and may therefore be used for diagnoses at the species level. We characterized dorsal guard hairs of most small rodent species that may be found in central Buenos Aires province (Argentina), according to their geographic distribution: Cavia aperea, Rattus rattus, R. norvegicus, Mus musculus, Holochilus brasiliensis, Scapteromys aquaticus, Oxymycterus rufus, Oligoryzomys flavescens, Akodon azarae, Deltamys kempi, Calomys laucha and C. musculinus. We provide discriminant functions and a dichotomic key to identify hairs at the species level based on hair length and width and scale morphology observed in specific sections of dorsal guard hairs. Discriminant functions require fewer measurements and are faster than the use of the key.

Keywords: hair cuticle; hair medulla; hair structure; identification key; rodents

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[1]
Nicole Seiler
mammalia, 2010, Volume 74, Number 3

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