Estimating species richness in tropical forest: The missing species extrapolation technique

被引:3
作者
Tackaberry, R
Brokaw, N
Kellman, M
Mallory, E
机构
[1] Department of Geography, York University, North York
[2] Manomet Observ. for Conserv. Sci., Manomet
[3] Programme for Belize, Belize City
基金
加拿大自然科学与工程研究理事会;
关键词
Belize; biodiversity; estimation; extrapolation technique; tree species richness; tropical forests;
D O I
10.1017/S0266467400010610
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
A new technique for estimation of tree species richness in tropical forests was developed and tested in this study. The missing species extrapolation technique is based on the assumption that the rare of accumulation of new species with increasing area is the same within sampled and unsampled areas of similar habitat within a region. This new technique was tested on four 1-ha sites of subtropical moist forest in Rio Brave, Belie for which complete species counts of trees greater than or equal to 10 cm dbh are available. Estimates given by the technique are 115, 98, 93 and 106% of the actual species counts within the four sites. The accuracy of these estimates was found to be equal to or better than most others obtained by using existing methods of extrapolation. The missing species extrapolation technique was also applied to a 21-ha riparian forest patch in the Mountain Pine Ridge, Belize, where it was used to obtain an estimate of the number of tree species greater than or equal to 10 cm dbh in the entire patch.
引用
收藏
页码:449 / 458
页数:10
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