Lizee M. H., Manel S., Mauffrey J. F., Tatoni Thierry, Deschamps-Cottin M. (2012). Matrix configuration and patch isolation influences override the species-area relationship for urban butterfly communities. Landscape Ecology, 27 (2), p. 159-169. ISSN 0921-2973.
Titre du document
Matrix configuration and patch isolation influences override the species-area relationship for urban butterfly communities
Lizee M. H., Manel S., Mauffrey J. F., Tatoni Thierry, Deschamps-Cottin M.
Source
Landscape Ecology, 2012,
27 (2), p. 159-169 ISSN 0921-2973
The aim of this paper is to examine the role of urban public parks in maintaining connectivity and butterfly assemblages. Using a regression framework, we first test the relative importance of park size and isolation in predicting abundance and species richness of butterfly assemblages across a set of 24 public parks within a large metropolitan area, Marseille (South-East France). Then, we focus on landscape features that affect diversity patterns of the recorded butterfly communities. In this second part, the urban landscape surrounding each park is described (within a 1 x 1 km window) according to two major components: vegetated areas (habitat patches) and impervious or built areas (matrix patches). Specifically, we aim to test whether the incorporation of this built component (matrix) in the landscape analysis provides new insights into the understanding of ecological connectivity in the urban environment. We found a significant effect of both matrix configuration (shape complexity of the built patches) and distance from regional species pool (park isolation) on diversity of butterflies that overrides park size in their contribution to variation in species richness. This result suggests that many previous studies of interactions between biodiversity and urban landscape have overlooked the influence of the built elements.
Plan de classement
Sciences du monde animal [080]
;
Etudes, transformation, conservation du milieu naturel [082]
;
Télédétection [126]
