IRRI Biodiversity Software Series. III. BOUNDARY: A Program for Detecting Boundaries in Ecological Landscapes

IRRI Biodiversity Software Series. III. BOUNDARY: A Program for Detecting Boundaries in Ecological Landscapes

W.J. Zhang, K.G. Schoenly

Like other ecosystems, agricultural landscapes function as a semipermeable and fluid patchwork of habitats that harbor thousands of species. For many organisms, habitat structure is an important determinant of feeding success, survival, and reproduction (Bell et al 1991). Boundaries between habitat patches function as filters, barriers, and conduits that influence the direction and spread of biological and physical materials (Forman 1995). For example, although the presence of a road may not limit the movement of vertebrates, it can be a devastating barrier to insects (Samways 1994). Studies on the abiotic and biotic factors that influence the nature, location, and number of boundaries in ecological landscapes (Hansen et al 1988, Holland et al 1991) are encapsulated in the concept of "boundary dynamics" (Wiens et al 1985). Over broad spatial and temporal scales, boundaries brought about by agricultural activities show how societies have used landscapes as environments have changed (Hansen et al 1988).

Specifications

  • Publisher: International Rice Research Institute
  • Language: English
  • ISSN: 0074-7807
  • ISBN: 971-22-0135-X
  • Pages: 17

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