文献类型：期刊文献

英文题名：Acoustic Sensor-Based Soundscape Analysis and Acoustic Assessment of Bird Species Richness in Shennongjia National Park, China

作者：Hou, Yanan[1,2] Yu, Xinwen[1,3] Yang, Jingyuan[4] Ouyang, Xuan[1,3] Fan, Dongpu[1,3]

第一作者：Hou, Yanan

通信作者：Yu, XW[1];Yu, XW[2]

机构：[1]Chinese Acad Forestry, Inst Forest Resource Informat Tech, Beijing 100091, Peoples R China;[2]Chengdu Neusoft Univ, Dept Comp Sci Engn, Chengdu 611844, Peoples R China;[3]Natl Forest & Grassland Adm, Key Lab Forestry Remote Sensing & Informat Syst, Beijing 100091, Peoples R China;[4]Shennongjia Natl Pk Adm, Shennongjia 442421, Peoples R China

年份：2022

卷号：22

期号：11

外文期刊名：SENSORS

收录：;EI(收录号：20222212176271);Scopus(收录号：2-s2.0-85130839549);WOS:【SCI-EXPANDED(收录号:WOS:000809029800001)】；

基金：This research was funded by the Fundamental Research Funds of IFRIT, grant number CAFYBB2018SZ010.

语种：英文

外文关键词：acoustic sensors; soundscape analysis; acoustic index; bird species richness; biodiversity monitoring

摘要：Passive acoustic sensor-based soundscape analysis has become an increasingly important ecological method for evaluation of ecosystem conditions using acoustic indices. Understanding the soundscape composition and correlations between acoustic indices and species richness of birds, the most important sound source in the ecosystem, are of great importance for measuring biodiversity and the level of anthropogenic disturbance. In this study, based on yearlong sound data obtained from five acoustic sensors deployed in Dalongtan, Shennongjia National Park, we analyzed the soundscape composition by comparing the distributions of the soundscape power in different frequency ranges, and examined the correlations between acoustic indices and bird species richness by means of the Spearman rank correlation coefficient method. The diurnal dynamic characteristics of acoustic indices in different seasons were also described. Results showed that the majority of sounds were in the frequency of 2-8 kHz, in which over 50% sounds were in 2-6 kHz, commonly considered the bioacoustic frequency range. The Acoustics Complexity Index, Bioacoustic Index, and Normalized Difference Soundscape Index were significantly correlated with bird species richness, suggesting that these indices can be used for evaluation of bird species richness; Apparent diurnal dynamic patterns of bird acoustic activities were observed in spring, summer, and autumn; however, the intensity and duration of bird acoustic activities in summer is larger/longer than in spring and autumn.