edge effect

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edge effect

[′ej i‚fekt]
(ecology)
The influence of adjacent plant communities on the number of animal species present in the direct vicinity.
(electricity)
An outward-curving distortion of lines of force near the edges of two parallel metal plates that form a capacitor.
References in periodicals archive ?
The relationship between population density and distance from habitat edge varied between habitat types, indicating declining densities as distance into the cropland matrix increased and minimal edge effects in forest habitat.
Edge effects are subject to the influences of a large number of variables which are dynamic in space and time (Ewers and Didham 2006a).
Many profiles have been developed over the years to suppress the edge effects in such contacts.
Estimates of speed are subject to edge effects, which indicates that estimates are less stable because they are based on fewer data (not as many neighboring values).
According to Metzger and Decamps (1997), the edge effect is one of the main processes associated with fragmentation as it promotes deep changes in vegetation structure and in biological dynamics.
Kapos (1989) reported observing edge effects in microclimatic parameters up to 40 m from the forest edge but suggested that microclimatic alterations in humid forests could extend 60 m from the edge, depending on canopy height and the degree of seasonal water stress in the region.
Current consensus holds that edge effects typically extend 150 meters into a fragment (Bierregaard et al.
There is much analysis of patterns of forest distribution, connectivity of patches, edge effects and changes in the species composition of forests that result from multiple drivers of change.
Habitat fragmentation and the associated edge effects are of primary concern to species conservation and habitat preservation.
Thus, since human-caused forest destruction and fragmentation are serious threats to the preservation of biological diversity in Colombia, and since these processes bring along the increase of anthropogenic edges, understanding edge effects or edge dynamics is important in order to design strategies to manage and monitor biodiversity in fragmented landscapes.
They form the transversal and longitudinal edge effects and the internal electrical as well as the magnetic asymmetry is formed in the motor.