Ecological Archives E096-283-A6

Jesse E. D. Miller, Ellen I. Damschen, Susan P. Harrison, and James B. Grace. 2015. Landscape structure affects specialists but not generalists in naturally fragmented grasslands. Ecology 96:33233331. http://dx.doi.org/10.1890/15-0245.1

Appendix F. Formula for proximity index.

Formula for proximity index from Mcgarigal (2015):

aijs=area (m) of patch ijs within specified neighborhood (m) of patch ij

hijs =distance (m) between patch ijs and patch ijs, based on patch edge-to-edge distance,

computed from cell center to cell center.

 

Literature cited

Mcgarigal, K. 2015. Fragstats help v. 4.2. http://www.umass.edu/landeco/research/fragstats/documents/fragstats.help.4.2.pdf.


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