Alometria reprodutiva da tartaruga-da-Amazônia (Podocnemis expansa): bases biológicas para o manejodissertation
Аннотация: Allometry of reproduction of Giant Amazon Turtle (Podocnemis expansa): biological basis for managementThis study aimed to analyze the reproduction of Giant Amazon Turtle (Podocnemis expansa) based on the results from 25 years of management carried out by the Projeto Quelônios da Amazônia (Project of Chelonian species in the Amazon).The historic process and the situation in nowadays of the species in the Brazilian Amazon, pointing out the importance of chelonian management for their conservation and sustainable use is presented in the introductory chapter.The objectives of the Project related to the protection and management of the reproduction of Chelonian species in the Amazon, specially the Giant Amazon, is presented and analyzed in the chapter two.The results obtained from the management of the turtle in the Purus River (AC, AM), Juruá and Uatumã Rivers (AM), Amazonas River (AP, PA), Araguaia River (GO, TO), Crixás-Açú River (GO), das Mortes River (MT), Xingú, Trombetas and Tapajós Rivers (PA), Guaporé River (RO) and Branco River (RR) are presented in this chapter.The results from the 52 millions of young turtles showed the main increments in the females recruitment and in the management of the production of young turtles in the Tapajós River (PA), Xingu River (PA), Branco River (RR), das Mortes River (MT), Purus River (AM) and in the Amazonas River (AP).The allometry of reproduction of P. expansa in the three beaches in the Branco River (RR), Trombetas River (PA) and Araguaia River (GO) between December 2002 and December 2003 is presented in the chapter three.Allometric relationships were obtained by linear regression.The females with body mass varying from 25 to 30 kg produced more eggs.The classes of females varying from 20 to 30 kg in the Araguaia, from 25 to 40 kg in the Roraima, and from 25 to 35 kg in the Trombetas produced more young turtles.The results could be used as a basis for the species management plan, allowing the improvement of ranching and farming programs.
Год издания: 2006
Авторы: Vitor Hugo Cantarelli
Ключевые слова: Turtle Biology and Conservation, Amphibian and Reptile Biology, Fish biology, ecology, and behavior
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