An Examination of the Accuracy of Using Plastral Scute Rings to Age Spotted Turtles (Clemmys guttata)

Howell Hunter J.; Seigel Richard A.

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An Examination of the Accuracy of Using Plastral Scute Rings to Age Spotted Turtles (Clemmys guttata)

机译：使用等离子探视环对斑龟（Clemmys guttata）进行年龄鉴定的准确性的检验

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The use of plastral scute rings to age turtles is a widely practiced technique, but a lack of rigorous field testing of this method has led to critiques of its usefulness and accuracy. We tested the method's effectiveness for aging spotted turtles (Clemmys guttata) by calculating an Age-Increase Ratio and by recording changes in the number of scutes within a year. We found no correlation between the change in the number of scute rings and the number of years between captures, which likely stems from the observer error associated with the difficulty of accurately counting scutes on older turtles; however, we did record a significant correlation between the number of scute rings and body size.

机译：使用质子壳形切割环对海龟进行老化是一种广泛实践的技术，但是由于缺乏对该方法的严格现场测试，因此对其有效性和准确性提出了批评。我们通过计算年龄增加率并记录一年之内的瓢的数量变化，测试了该方法对老化斑海龟（Clemmys guttata）的有效性。我们发现侦查器环的数量变化与两次捕获之间的年数之间没有相关性，这很可能是由于观察者的错误，而该错误与准确计算老海龟的侦查器的难度有关。但是，我们的确发现了扇形环的数量与体型之间的显着相关性。

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《Chelonian conservation and biology》 |2018年第1期|104-108|共10页
作者
Howell Hunter J.; Seigel Richard A.;
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Towson Univ, Dept Biol Sci, 8000 York Rd, Towson, MD 21252 USA;

Towson Univ, Dept Biol Sci, 8000 York Rd, Towson, MD 21252 USA;

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An Examination of the Accuracy of Using Plastral Scute Rings to Age Spotted Turtles (Clemmys guttata)

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