Acoustic indices for biodiversity assessments: Analyses of bias based on simulated bird assemblages and recommendations for field surveys
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- 作者：A. Gasca ; gamandin@purdue.edu" class="auth_mail" title="E-mail the corresponding author ; S. Pavoineb ; c ; L. Lelloucha ; P. Grandcolasa ; J. Sueura
- 关键词：Biodiversity ; Acoustic indices ; Acoustic diversity ; Simulation ; Bias ; Conservation management
- 刊名：Biological Conservation
- 出版年：2015
- 出版时间：November 2015
- 年：2015
- 卷：191
- 期：Complete
- 页码：306-312
- 全文大小：615 K
文摘
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Rapid acoustic surveys aim to estimate biodiversity through the acoustic diversity of sound produced by animal communities.
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We simulated sound of bird assemblages and analyzed the relationship between acoustic diversity indices and species richness.
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We tested sources of acoustic heterogeneity, occurring in field conditions, that could affect this relationship.
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All indices varied in response to at least one of five tested sources of acoustic heterogeneity.
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We proposed recommendations to reduce the effects of these sources of acoustic heterogeneity and to select appropriate indices.