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Spatiotemporal Genetic Structure within White Clover Populations in Grazed Swards

USDA-ARS, Pasture Systems and Watershed Management Research Unit, Curtin Road, Building 3702, University Park, PA 16802-3702

View larger version (30K): [in a new window]   Fig. 1. Spatial autocorrelation correlogram of white clover populations at the JU site in 1997. The dashed lines delineate the 95% confidence intervals of the null distribution. N, number of samples; n, number of clones; nc, number of nonclonal samples; P, overall correlogram significance.

View larger version (27K): [in a new window]   Fig. 2. Spatial autocorrelation correlogram of white clover populations at the JU site in 1998. The dashed lines delineate the 95% confidence intervals of the null distribution. N, number of samples; n, number of clones; nc, number of nonclonal samples; P, overall correlogram significance.

View larger version (37K): [in a new window]   Fig. 3. Spatial autocorrelation correlogram of white clover populations at the MI site in 1997. The dashed lines delineate the 95% confidence intervals of the null distribution. N, number of samples; n, number of clones; nc, number of nonclonal samples; P, overall correlogram significance.

View larger version (38K): [in a new window]   Fig. 4. Spatial autocorrelation correlogram of white clover populations at the MI site in 1998. The dashed lines delineate the 95% confidence intervals of the null distribution. N, number of samples; n, number of clones; nc, number of nonclonal samples; P, overall correlogram significance.

View larger version (9K): [in a new window]   Fig. 5. Mean patch size found in white clover populations averaged over years, sites, and quadrats. Error bars represent ±SE; n values for May to September were 8, 6, 5, 5, and 8, respectively.