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Estimating Species-Area Relationships from Plot to Landscape Scale Using Species Spatial-Turnover Data
John Harte, Sarah McCarthy, Kevin Taylor, Ann Kinzig and Marc L. Fischer
Vol. 86, No. 1 (Jul., 1999), pp. 45-54
Stable URL: http://www.jstor.org/stable/3546568
Page Count: 10
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Vegetation census data from montane meadow plots are used to test a predicted connection between the species-area relationship, S=cAz, and the dependence of interpatch species turnover on patch area A, interpatch distance D, and the species-area exponent z. At small spatial scales, from D ≈ 1 - 10 m, where species-area parameters can be independently estimated, the prediction is confirmed; at larger scales, from D≈ 1-104 m, the scale-dependence of z is deduced. A predicted dependence of species richness on the shape of censused patches is also confirmed. Our results indicate that readily obtainable species-turnover data between distant small patches can be used to estimate species-area exponents at landscape scales where census data for nested areas are generally not available, thereby improving our ability to estimate landscape-scale species richness and rarity.
Oikos © 1999 Nordic Society Oikos