Download full-text PDF

Edge Effects in Fragmented Forests: Implications for Conservation

Article (PDF Available) inTrends in Ecology & Evolution 10(2):58-62 · February 1995with5,353 Reads
DOI: 10.1016/S0169-5347(00)88977-6} · Source: PubMed
Abstract
Edges are presumed to have deleterious consequences for the organisms that remain in forest fragments. However, there is substantial discrepancy among recent studies about the existence and intensity of edge effects. Most studies have focused on seeking simplistic and static patterns. Very few have tested mechanistic hypotheses or explored the factors that modulate edge effects. Consequently,studies are very site-specifci and their results cannot be generalized to produce a universal theory of edges. Although estimates of the intensity and impact of edge effects in fragmented forests are urgently required, little can be done to ameliorate edge effects unless their mechanics are better understood.
Full-text
Content uploaded by Carolina Murcia
Author content
Murcia 1995 Tree.pdf
537.50 KB
Sorry, there is no online preview for this file type.
Article
    Nesting success of songbirds often is poor in edge-dominated habitats. Because the spatial jnxta- position of forest fragments relative to other habitats may influence nest success, we tested the hypothesis that the depredation rate for bird nests in small hardwood forests would decrease if the degree of edge contrast with adjoining habitats was reduced. Over 4 trials, we placed 672 artificial... [Show full abstract]
    Article
    December 2005 · Biological Conservation
      Forest fragmentation leads to the creation of isolated forest patches and habitat edges with subsequent impact on forest-interior bird species. Although the effects of fragmentation and edge on avian nesting success are well documented for open cup-nesting species in eastern deciduous forests in North America, it is unclear whether these effects are common for all birds nesting in... [Show full abstract]
      Article
      January 2002 · Studies in Avian Biology
        We propose a model that considers forest fragmentation within a spatial hierarchy that includes regional or biogeographic effects, landscape-level fragmentation effects, and local habitat effects. We hypothesize that effects operate "top down" in that larger scale effects provide constraints or context for smaller scale effects. Bird species' abundance and productivity vary at a biogeographic... [Show full abstract]
        Discover more