Analysis of Growth of Body Weight and Tarsus Length of the Nestlings in the Rufous Turtle Dove, Streptopelia orientalis Latham(Feedback on the 30 Years of the Japanese Wildlife Research Society)

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  • キジバトの雛における体重および〓蹠骨長の成長解析(森林野生動物研究会創立30年記念集)
  • キジバトの雛における体重および趺蹠骨長の成長解析
  • キジバト ノ ヒナ ニ オケル タイジュウ オヨビ フセキ コツチョウ ノ セイチョウ カイセキ

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The growth pattern of the body weight and tarsus length of the nestlings of the Rufous Turtle Dove, Streptopelia orientalis Latham was analyzed. 67 nestlings, with the brood size from one to three, were obscrvcd from the natural population living in the campus of the University of Tsukuba every day from the first day to the 15th day, when is the average fledging period. Richards' growth model was fitted to the body weight and tarsus length, then allometric growth model was tested between body weight and tarsus length. The results are as follows: (1)The growth rate from the first to fifth day was larger than that from 5th to 15th day, showing the nutritional advantage of crop milk during the early growth. The growth rate was negatively correlated with the brood size, which is explained by the fact that the amount of crop milk is constant regardless of brood size. (2)The four-pointed method was applied to the Richards' growth model, resulting in the high fitting coefficient of 99.8% to both body weight and tarsus length. The results indicate that Richards' growth model can be used to the growth pattern of body weight and tarsus length of the nestlings in the Rufous Turtle Dove. (3)The relative growth coefficient of body weight to tarsus length was 2.19, 2.20, and 2.16 for the brood size from one to three, respectively, which shows strong positive allometric growth.

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