Habitat Modeling for the Family of Rhinocryptids in the Rain Forest in the South of Chile

Abstract

Fragmentation and degradation of forest habitats affects (the susceptibility of several species is high) highly sensitive species, provoking a serious decrease in biodiversity. To deal with this problem it is necessary to consider the conservation level of bioindicator species and the development of a sustainable forest management of the natural resources. Within this framework, the current study poses the statistical binomial logit modeling to identify the potential habitat of endemic birds (Rhinocryptids) in rain forests in the south of Chile, biodiversity “hostpot” worldwide. The research allowed to identify a potential area of habitat of 14619 hectares with high probability presence of the studied birds. This area presented certain habitat constraints both topographic and vegetation factors. The studied birds showed a high selection of habitats associated to mixed forests of Nothofagus species, sites with high stratification and understory presence. The low quantity of Rhinocryptidae family species was associated to exclusive forests of Araucaria araucana, which exist at higher altitudes. The model of potential habitat of bioindicator birdlife (avifauna) within a system of geographic information it is presented as an efficient tool of information among the degree of alteration of ecosystems and for decision-makings in native forest management.

What about biological corridors? A review on some problems of concepts and their management

“…In addition to environmental education, it is necessary to have indicators that help monitoring the level of achievement of the objectives for which the biological corridor was designed. Several investigations have been carried out, proposing a framework for the use of the principles, criteria, and indicators in the evaluation of the implementation of the corridors, such as, actual and potential habitat use (Acosta-Jamett and Simonetti 2004, Moreno et al 2017, Rodríguez-Soto et al 2011, Zúñiga et al 2009, the biodiversity index (Campos and De Finegan 2002, Duelli and Obrist 2003, Milasowszky et al 2009, growing rate of fauna and flora populations, however the systematization of results and data for the appropriate management of the ecosystems included in the corridors is low. We believe that it is important to delimit the scale of items to be evaluated, which ensures the effectiveness of the corridors (Hernández et al 2004).…”