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IDENTIFICAÇÃO DOS CANÍDEOS BRASILEIROS ATRAVÉS DOS SEUS PÊLOS GUARDA
Abstract and Figures
The Canidae family includes six extant species in Brazil: Atelocinus microtis, Cerdocyon thous, Chrysocyon brachyurus, Pseudalopex gymnoscercus, Pseudalopex vetulus and Speothos venaticus. These canids are top food chain species and their importance is relevant and indispensable for the homeostatic maintenance of the ecosystem. This family is under threat due to anthropogenic actions: habitat loss and hunting to obtain furs. The study of canid ecology in the field, generally, requires high financial costs that include radio telemetry equipment and specialized professionals. The biological study of these animals, based in their traces, is a cheaper alternative, and its application in the field is easy and probably efficent. Analyzing the patterns of dispersal of faeces and morphological patterns of the hairs found in faeces (due to self-grooming behavior), bring about important information, such as species, population size and territory size. The aim of this study was a field key elaboration for guard hair identification of the six Brazilian canids. This key is based on cuticular and medular patterns of the guard hairs and on their coloration and bands.
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