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Reproduction and population structure in the turtle kinosternon sonoriense

Reproduction and population structure in the turtle kinosternon sonoriense

Southwestern Naturalist 27(4): 447-456

Reproduction and population structure of K. sonoriense was studied from June, 1970-Oct., 1972 in central and southern Arizona [USA]. Populations were intensively investigated at Tule Stream, Yavapai County and Sycamore Creek, Maricopa County (elevations of 610 and 1200 m, respectively). Reproductive strategies and population densities differed in the 2 populations, reflecting differences in elevation and temperature. Males in both populations matured smaller and at a younger age than females, and both sexes at Tule Stream matured at a smaller size and younger age than did conspecific at Sycamore Creek. Mating was in March and April at both sites. Egg laying began in late May and continued through Sept. at lower elevations but terminated in July at higher ones. Females from Tule Stream produced 2 clutches/yr while those from Sycamore Creek produced only 1. The Tule Stream population had a density of .apprx. 750/ha; densities at Sycamore Creek were lower.

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Accession: 006315503

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DOI: 10.2307/3670719

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