期刊
ECOLOGICAL INDICATORS
卷 11, 期 2, 页码 582-589出版社
ELSEVIER
DOI: 10.1016/j.ecolind.2010.08.004
关键词
ROC methodology; Biotic index; BMWP; EPT; Yungas; Benthic macroinvertebrates
资金
- CONICET
- ANPCYT-PICT [01-528]
- [PIP 1484]
Biotic indices are widely used in monitoring the health status of various ecosystems. The choice of the best index is generally done qualitatively depending on a variety of aspects including cost and time. ROC (Receiver Operating Characteristic) methodology constitutes a valuable tool to compare objectively the diagnostic capabilities of different tests in addition to obtain decision thresholds. In this manuscript, ROC methodology is described and implemented for the first time in the context of stream bioassessment through benthic macroinvertebrates. Cut-off values that distinguish impaired from healthy sites are suggested. A new index called IBY-4 is also developed. IBY-4 accounts for the occurrence of Megaloptera, Plecoptera, Trichoptera and Elmidae in a target site and may achieve the best general performance in the study region concerning to Andean Tropical streams. (C) 2010 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据