SciELO - Scientific Electronic Library Online

vol.86 issue1Bidimensional transfer of effects among organisms: An overlooked concept in community ecologyThe role of Turdus falcklandii (Aves: Passeriforme) as disperser of invasive plants in the Juan Fernández Archipelago author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Revista chilena de historia natural

Print version ISSN 0716-078X


RAMOS-JILIBERTO, RODRIGO et al. Identification of ecologically relevant species for Ecological Risk Assessment: A proposal from theoretical ecology. Rev. chil. hist. nat. [online]. 2013, vol.86, n.1, pp.21-31. ISSN 0716-078X.

Based on recent advances in ecological network theory, we present an ad hoc conceptual framework and a methodological proposal for the evaluation of the ecological relevance of species within a community, oriented towards the Ecological Risk Assessment in Chilean aquatic systems. The procedure is theoretical and based on the quality of available information, i.e. it does not require experimental tests or field observation. Given the current and medium-term expected state of knowledge about the structure of local aquatic communities, the proposed method is focused towards its application to communities whose level of knowledge is low or medium. The proposal uses qualitative criteria and quantitative indices (seven topological indices and one index based on qualitative modeling) for the identification of ecologically relevant species that represent at least three trophic categories within the community.

Keywords : centrality indices; ecological networks; keystone species; loop analysis; topology.

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


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License