NDLI: The potential for large-scale wildlife corridors between protected areas in Brazil using the jaguar as a model species

Content Provider	Springer Nature Link
Author	Silveira, Leandro Sollmann, Rahel Jácomo, Anah T. A. Diniz Filho, José A. F. Tôrres, Natália M.
Copyright Year	2014
Abstract	Most large reserves in Brazil do not hold viable populations of jaguars to guarantee the species’ long-term survival. Corridors linking populations have been identified as a potential tool to avoid negative effects of isolation, increasing population viability. Here, we performed a Brazil-wide evaluation of potential large scale corridors connecting protected jaguar populations. Six variables (human population size, dam reservoir size, number of dams, roads, railways and cities) expected to negatively impact jaguar movement were analyzed across 180 potential corridors connecting 298 protected jaguar areas. We established overall disturbance scores for the corridors using a principal components analysis and compared them among the Brazilian biomes. We further investigated which variables separated biomes using a canonical variates analysis. The Atlantic Forest and the semi-arid Caatinga have the most impacted potential corridors, whereas the Amazon and Pantanal still have the best potential corridors. Corridor quality in the Cerrado grasslands was intermediate. All variables but human population size and corridor length contributed significantly to differences in corridor variables among biomes. Our conclusions suggest that we need to plan the implementation of large scale corridors in the Amazon, Pantanal and particularly the Cerrado soon, while potential corridors might still be economically viable. In the much more impacted Atlantic Forest and Caatinga, the need for conservation actions is strongest, but logistical difficulties and costs may turn implementation of corridors unfeasible.
Starting Page	1213
Ending Page	1223
Page Count	11
File Format	PDF
ISSN	09212973
Journal	Landscape Ecology
Volume Number	29
Issue Number	7
e-ISSN	15729761
Language	English
Publisher	Springer Netherlands
Publisher Date	2014-06-30
Publisher Place	Dordrecht
Access Restriction	Subscribed
Subject Keyword	Brazil Conservation Corridor Disturbance Jaguar Panthera onca Principal components analysis Landscape Ecology Plant Ecology Forestry Management Forestry Ecology Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Geography, Planning and Development Ecology Nature and Landscape Conservation

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