Microestructura cuticular y medular del pelo de guardia de mamíferos pequeños terrestres en la región de Arequipa, Perú

Translated title of the contribution: Cuticular and medullar microstructure of the guard hair of small land mammals in the region of Arequipa, Peru

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Abstract

Currently, the study of guard hairs is used in various areas of basic and applied sciences (taxonomy, ecology, genetics, paleontology, criminology, among others), due to its resistance to physical, chemical, mechanical and biological factors, conserving its cuticular and medullar structure. These structures form patterns that allow the identification of specimens at the level of genera and families. However, despite the importance, there are no studies on this subject in Peru. Therefore, samples from 30 mammalian species of Didelphimorphia and Rodentia were examined to fill this information gap. Among the species studied, we differentiated 5 medullary and 8 cuticular patterns. The didelphid marsupials have a medial unise-riate scaleriform pattern with a foliaceous cuticular pattern; the cricetid rodents have an alveolar multiseriate medullary pattern and a foliate cuticular pattern, the chinchillids a reticular medullary pattern with a cuticular pattern of diamond petal type D, the caviids a reticular medullary pattern with a transverse cuticular pattern, the abrocomids a medullary pattern listrade with simple oblique wave cuticular pattern, and the murids a reticular and alveolar medullary pattern with cuticular pattern petal diamond (type B and C) or foliaceous. We present for the first time the detailed description of the cuticle and marrow of the guard hairs of 24 species of rodents and 2 marsupials.

Translated title of the contributionCuticular and medullar microstructure of the guard hair of small land mammals in the region of Arequipa, Peru
Original languageSpanish
Pages (from-to)49-62
Number of pages14
JournalRevista Peruana de Biologia
Volume26
Issue number1
DOIs
StatePublished - 2019

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