Abstract

GIRAUDO, Alejandro R. et al. Revisión de la metodología utilizada para categorizar especies amenazadas de la herpetofauna Argentina. Cuad. herpetol. [online]. 2012, vol.26, suppl.1, pp.117-130. ISSN 1852-5768.

We review the method used to determine endangered species in Argentina, with the objecti­ves of: (1) that can be used consistently by different people reducing subjectivity, (2) provide guidance on how to assess the factors that affect the risk of extinction, (3) provide users of red lists a better understanding of the categorization process, (4) provide a system that will facilitate comparisons across taxa. Over the previous method proposed 11 amendments in addition to reducing the number of variables to 6, all relevant to define the vulnerability of species inclu­ding: (1) Distribution and degree of endemism, (2) Ecological rarity, (3) Human effects, (4) Reproductive potential, (5) Size, (6) Demographic rarity (abundance). The amendments are proposed in the range of values of the variables (sometimes following thresholds of IUCN) and provide theoretical guidance thresholds for the categories. For the first time in Argentina we made explicit the mechanisms to minimize bias due to subjectivity and uncertainty in the categorization process, including: (1) The consensus of multiple reviewers, (2) The use of a training guide, (3) Suggestions to manage uncertainty.

Keywords : Categorization; Method; Endangered species; Red list; Argentina.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )