頁籤選單縮合
題 名 | Estimating the Number of Shared Species in Two Communities |
---|---|
作 者 | Chao,Anne; Hwang,Wen-han; Chen,Y.-C.; Kuo,C.-Y.; | 書刊名 | Statistica Sinica |
卷 期 | 10:1 2000.01[民89.01] |
頁 次 | 頁227-246 |
分類號 | 319.5 |
關鍵詞 | 共變係數; 變差係數; 數值估計; Coefficient of covariation; Coefficient of variation; Community similarity; Heterogeneity; Multinomial; Overlap; Sample coverage; Shared species; |
語 文 | 英文(English) |
英文摘要 | In statistical ecology, the number of shared species is a standard measure of similarity between two communities. Assume that a multinomial sample is drawn for each of the two target communities. Each observation (individual) in the sample is classified to species identity, and the frequency for each observed species is recorded. This paper uses the concept of sample coverage to estimate the number of species in common to the two communities (the number of shared species). The result generalizes Chao and Lee (1992) to a two-community situation. Simulation results are reported to examine the performance of the proposed estimators. Bird census data collected form April 1994 to March 1995 in Ke-Yar and Chung-Kang estuaries in Taiwan are used to illustrate the estimation procedure. |
本系統中英文摘要資訊取自各篇刊載內容。