Ants in the labyrinths: lessons for critical landscapes.
A study was conducted to investigate how different types and degrees of landscape fragmentation interact with different possible dispersal modes to affect the movement of species. Using percolation theory as a base from which to extend simulations of the dispersal and migration of organisms across...
| Published in: | Professional Geographer Vol. 51; no. 2; pp. 156 - 171 |
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| Main Authors: | , |
| Format: | Article |
| Published: |
Taylor & Francis Ltd
May 1999
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| Subjects: | |
| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=512828902&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 512828902 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 00330124 PGG jtl: Professional Geographer issn: 00330124 maglogo: N pubinfo: dt: May 1999 vid: 51 iid: 2 pid: 377 pub: Taylor & Francis Ltd artinfo: ui: 512828902 ppf: 156 ppct: 15 formats: tig: atl: Ants in the labyrinths: lessons for critical landscapes. aug: au: Malanson, George P. Cramer, Barton E. su: Percolation Theory Computer simulation Habitats Landscape ecology Biogeography sug: subj: Percolation Theory Computer simulation Habitats Landscape ecology Biogeography ab: A study was conducted to investigate how different types and degrees of landscape fragmentation interact with different possible dispersal modes to affect the movement of species. Using percolation theory as a base from which to extend simulations of the dispersal and migration of organisms across fragmented landscapes, simulations were made of ants in labyrinths on a gradient of fragmentation. Landscapes were created with three types of fragmentation pattern—uniform random, hierarchical, and fractal—and open-field and edge ants were studied. Findings revealed differences in the success rates among landscapes and between edge ants and open-field ants, and differences were also created by landscape pattern in rates of movement. It was concluded that the general rules derived from simulations can be used to identify landscapes that are near critical levels of fragmentation and will be sensitive in their response to small efforts at restoration or small levels of fragmentation. A method of solving problems that might arise in choosing a scale is considered. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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