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How to Compare the Lower Developmental Thresholds

文献类型: 外文期刊

作者: Shi, Peijian 1 ; Ge, Feng 1 ; Men, Xingyuan 2 ;

作者机构: 1.Chinese Acad Sci, Inst Zool, State Key Lab Integrated Management Pest & Rodent, Beijing 100101, Peoples R China

2.Shandong Acad Agr Sci, Inst Plant Protect, Jinan 250100, Peoples R China

关键词: developmental stage;geographical population;lower developmental threshold;isomorphy rate

期刊名称:ENVIRONMENTAL ENTOMOLOGY ( 影响因子:2.377; 五年影响因子:2.298 )

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收录情况: SCI

摘要: According to the hypothesis of isomorphy rate, all the lower developmental thresholds of different developmental stages of an insect are equal. However, there is lack of a formal statistical method for testing whether there is a significant difference among the lower developmental thresholds on the basis of the traditional linear model describing developmental rate as a linear function of temperature. For comparing the lower developmental thresholds of different developmental stages, a new method based on the Chow test is proposed in the current study. Another feasible way based on the linear model proposed by Ikemoto and Takai is also proposed. The lower developmental thresholds can be compared by the analysis of covariance on this linear model. The current study can be used to test the hypothesis of isomorphy rate. When comparing the lower developmental thresholds of different geographical populations for one insect species, the two methods proposed here are also applicable.

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