Riqueza e composição, lacunas de conhecimento e conservação dos crocodilianos do estado do Tocantins, ecótono Amazônia- Cerrado, Brasil

Six species of alligatorids occur in Brazil, but only three have been recorded from the state of Tocantins: Melanosuchus niger, Caiman crocodilus and Paleosuchus palpebrosus. The objectives of this study are to present a synthesis of the knowledge of crocodilians of Tocantins, describing geographica...

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Detalles Bibliográficos
Autores principales:	Dornas, Tulio, Silva, Mauro Celso H. da, Silva, Wlainer Paula, Malvasio, Adriana
Formato:	Articulo
Lenguaje:	Portugués
Publicado:	2021
Materias:	Zoología Caimans of Tocantins Caiman crocodilos Melanosuschus niger Paleosuchus palpebrosus Paleosuchus trigonatus Tocantins-Araguaia Basin
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/120236 https://ppct.caicyt.gov.ar/index.php/cuadherpetol/article/view/18133
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-120236
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institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Portugués
topic	Zoología Caimans of Tocantins Caiman crocodilos Melanosuschus niger Paleosuchus palpebrosus Paleosuchus trigonatus Tocantins-Araguaia Basin
spellingShingle	Zoología Caimans of Tocantins Caiman crocodilos Melanosuschus niger Paleosuchus palpebrosus Paleosuchus trigonatus Tocantins-Araguaia Basin Dornas, Tulio Silva, Mauro Celso H. da Silva, Wlainer Paula Malvasio, Adriana Riqueza e composição, lacunas de conhecimento e conservação dos crocodilianos do estado do Tocantins, ecótono Amazônia- Cerrado, Brasil
topic_facet	Zoología Caimans of Tocantins Caiman crocodilos Melanosuschus niger Paleosuchus palpebrosus Paleosuchus trigonatus Tocantins-Araguaia Basin
description	Six species of alligatorids occur in Brazil, but only three have been recorded from the state of Tocantins: Melanosuchus niger, Caiman crocodilus and Paleosuchus palpebrosus. The objectives of this study are to present a synthesis of the knowledge of crocodilians of Tocantins, describing geographical distribution of species, and some aspects of conservation. The exhaustive compilation of records in the literature, herpetological collections and surveys carried out in the field by the authors confirmed the occurrence also of Paleosuchus trigonatus. Although a specimen of C. latirostris was reported from Tocantins, it was possibly erroneously labeled. To investigate knowledge gaps, we divided the state into 95 grid cells of 300,000 hectares. Only 55% of Tocantins State has received some sampling for crocodilians, regardless of the method of registration. Only 12% of the state has been sampled considering any level of documentation and only 1.6% of the state had collection and deposit of specimens in a scientific collection. Only P. trigonatus does not have records within full-protection conservation areas and/or indigenous lands in Tocantins State. Hunting pressure and dams on the Tocantins River may lead to a decrease in the density of M. niger. A systematic program for monitoring and surveying for caimans is suggested to consolidate the knowledge of this animal group in Tocantins State.
format	Articulo Articulo
author	Dornas, Tulio Silva, Mauro Celso H. da Silva, Wlainer Paula Malvasio, Adriana
author_facet	Dornas, Tulio Silva, Mauro Celso H. da Silva, Wlainer Paula Malvasio, Adriana
author_sort	Dornas, Tulio
title	Riqueza e composição, lacunas de conhecimento e conservação dos crocodilianos do estado do Tocantins, ecótono Amazônia- Cerrado, Brasil
title_short	Riqueza e composição, lacunas de conhecimento e conservação dos crocodilianos do estado do Tocantins, ecótono Amazônia- Cerrado, Brasil
title_full	Riqueza e composição, lacunas de conhecimento e conservação dos crocodilianos do estado do Tocantins, ecótono Amazônia- Cerrado, Brasil
title_fullStr	Riqueza e composição, lacunas de conhecimento e conservação dos crocodilianos do estado do Tocantins, ecótono Amazônia- Cerrado, Brasil
title_full_unstemmed	Riqueza e composição, lacunas de conhecimento e conservação dos crocodilianos do estado do Tocantins, ecótono Amazônia- Cerrado, Brasil
title_sort	riqueza e composição, lacunas de conhecimento e conservação dos crocodilianos do estado do tocantins, ecótono amazônia- cerrado, brasil
publishDate	2021
url	http://sedici.unlp.edu.ar/handle/10915/120236 https://ppct.caicyt.gov.ar/index.php/cuadherpetol/article/view/18133
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Riqueza e composição, lacunas de conhecimento e conservação dos crocodilianos do estado do Tocantins, ecótono Amazônia- Cerrado, Brasil

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