Separando la Fragmentación de la Pérdida de Hábitat para Arañas en Paisajes Agrícolas Heterogéneos

  • ZIV Y
ISSN: 1523-1739
Citations of this article
Mendeley users who have this article in their library.


Abstract: Habitat loss reduces species diversity, but the effect of habitat fragmentation on number of species is less clear because fragmentation generally accompanies loss of habitat. We compared four methods that aim to decouple the effects of fragmentation from the effects of habitat loss. Two methods are based on species-area relations, one on Fisher's alpha index of diversity, and one on plots of cumulative number of species detected against cumulative area sampled. We used these methods to analyze the species diversity of spiders in 2, 3.2 × 4 km agricultural landscapes in Southern Judea Lowlands, Israel. Spider diversity increased as fragmentation increased with all four methods, probably not because of the additive within-patch processes, such as edge effect and heterogeneity. The positive relation between fragmentation and species diversity might reflect that most species can disperse through the fields during the wheat-growing season. We suggest that if a given area was designated for the conservation of spiders in Southern Judea Lowlands, Israel, a set of several small patches may maximize species diversity over time.




GAVISH, Y., ZIV, Y., & ROSENZWEIG, M. L. (2012). Separando la Fragmentación de la Pérdida de Hábitat para Arañas en Paisajes Agrícolas Heterogéneos. Conservation Biology, 26(1), 150–159. Retrieved from

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free