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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

A large Cervidae Holocene accumulation in Eastern Brazil: an example of extreme taphonomical control in a cave environment

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Autor(es):
Hubbe, Alex [1, 2] ; Auler, Augusto S. [1]
Número total de Autores: 2
Afiliação do(s) autor(es):
[1] Inst Carste, BR-30360260 Belo Horizonte, MG - Brazil
[2] Univ Sao Paulo, Inst Biociencias, Dept Genet & Biol Evolut, Lab Estudos Evolut Humanos, BR-05508090 Sao Paulo - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: INTERNATIONAL JOURNAL OF SPELEOLOGY; v. 41, n. 2, p. 297-305, 2012.
Citações Web of Science: 10
Resumo

A remarkable cervid bone accumulation occurs at a single passage (named Cervid Passage; CP) at Lapa Nova, a maze cave in eastern Brazil. CP lies away from cave entrances, is a typical pitfall passage and contains bone remains of at least 121 cervids, besides few bats, peccaries and rodents remains. There is no evidence of water (or sediment) flow at the site and in general bones lack post depositional alterations and display anatomical proximity, suggesting that the majority of the remains found inside CP (mainly cervids) are due to animals that after entering the cave got trapped in the site. Observations suggest that two entrances could have provided access to cervids (and the few other animals, besides bats), either by falling inside the cave or by entering by their own free will. Once inside the cave, the maze pattern would make route finding difficult, and of all passage intersections, only the one leading to CP would result in a non-return situation, starving the animal to death. Radiocarbon dates suggest that animal entrapment occurred during at least 5 thousand years, during the Holocene. The reasons why mainly cervids were found are unknown but they are probably related to the biology of this group coupled with the fact that caves provide several specific taphonomic processes that may account for a strong bias in bone accumulation. Indeed, the frequent occurrence of Cervidae in both the fossil and sub-fossil record in Brazilian caves may be related to an overall high faunal abundance or may suggest that these animals were especially prone to enter caves, perhaps in search of nutrients (as cave saltpetre) or water. (AU)

Processo FAPESP: 08/58554-3 - Análise morfológica craniana de Xenarthra atuais e extintos: inferências evolutivas e funcionais
Beneficiário:Alex Christian Rohrig Hubbe
Linha de fomento: Bolsas no Brasil - Doutorado