Sex Ratios of Buchloe dactyloides (Nutt.) Engelm. Along Catenas on the Shortgrass Steppe
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A male : female : mixed sex ratio of 0.92 : 1.00 : 0.83 was found and did not differ significantly from unity. Overall density of male and female clones averaged c5500 and 6000 clones/ha, respectively. Buffalograss was not segregated spatially aboveground along the catenas by slope position, but N- and S-facing slopes averaged significantly more clones/ha than did E- and W-facing slopes. Dioecy in this genus may not be exclusively the result of ecological differentiation to reduce intrasexual competition but an adaptation for colonizing disturbed areas. -from Authors
