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Comparison of Harvested and Nonharvested Painted Turtle Populations
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Comparison of Harvested and Nonharvested Painted Turtle Populations

著者: Tony Gamble; Andrew M Simons
版本/格式: 文章 文章 : 英语
刊登在:Wildlife Society Bulletin, Winter, 2004, vol. 32, no. 4, p. 1269-1277
数据库:JSTOR
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文件类型: 文章
所有的著者/提供者: Tony Gamble; Andrew M Simons
ISSN:0091-7648
OCLC号码: 481218545
语言注释: English
注意: Juvenile painted turtle captured in central Minnesota in 2002. Small size and attractive coloration make painted turtles desireable pets.
Basking adult painted turtle about to be captured in one of our basking traps on Stump Lake, Stearns County, Minnesota.
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Painted turtles (Chrysemys picta) are commercially harvested in large numbers in Minnesota for sale to biological supply companies and the pet trade. We investigated the possible effects of this harvest by comparing size, demography, and catch rates of painted turtles in 12 harvested and 10 nonharvested painted turtle populations in 2001 and 2002. We correlated turtle catch rates to harvest status, and harvested lakes had a lower catch-per-unit-effort than nonharvested lakes. Harvest had minimal effect on the size of turtles captured, and we found no significant differences in the count of male:female:juvenile turtles among lakes of different harvest status. We suggest that painted turtle populations likely have been impacted by harvester activities, but it was unclear whether the current harvest is sustainable. Further work is needed to determine whether there are any long-term effects on painted turtle populations.

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