1. DOS NUEVOS CASOS DE AUTOTOMÍA CAUDAL EN ROEDORES SURAMERICANOS.
- Author
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Sánchez-Giraldo, Camilo and Delgado-V., Carlos A.
- Subjects
- *
FOREST spiny pocket mice , *POCKET mice , *AUTOTOMY , *ANIMAL behavior , *PREDATORY animals , *COMPETITION (Biology) - Abstract
The article reports on the caudal autotomy in Heteromys sp. nov. and Neacomys tenuipes in the northern Cordillera Central of the Colombian Andes. It observes the movement of the two mammals while manipulating the rodents captured during fieldwork which shows that N. tenuipes shakes and moves its whole body away before autotomy while a striking strong gyratory movement of the body was observed in Heteromys sp. nov. It reveals that the absence of captured rodents with autotomy could be a consequence of differences in the frequencies of predators attack or the intraspecific aggression.
- Published
- 2009