文献类型：期刊文献

英文题名：Can urban forests provide acoustic refuges for birds? Investigating the influence of vegetation structure and anthropogenic noise on bird sound diversity

作者：Hao, Zezhou[1] Zhang, Chengyun[2] Li, Le[1] Sun, Bing[1] Luo, Shuixing[1] Liao, Juyang[3] Wang, Qingfei[1] Wu, Ruichen[1] Xu, Xinhui[4] Lepczyk, Christopher A.[5] Pei, Nancai[1]

第一作者：郝泽周

通信作者：Pei, NC[1]

机构：[1]Chinese Acad Forestry, Res Inst Trop Forestry, Guangzhou 510520, Peoples R China;[2]Guangzhou Univ, Sch Elect & Commun Engn, Guangzhou 510006, Peoples R China;[3]Hunan Bot Barden, Changsha 410116, Peoples R China;[4]Guangdong Eco Engn Polytech, Guangzhou 510520, Peoples R China;[5]Auburn Univ, Coll Forestry Wildlife & Environm, Auburn, AL 36849 USA

年份：2024

卷号：35

期号：1

外文期刊名：JOURNAL OF FORESTRY RESEARCH

收录：;EI(收录号：20240215364130);Scopus(收录号：2-s2.0-85181737659);WOS:【SCI-EXPANDED(收录号:WOS:001138453200001)】；

基金：We appreciate Haisong Zhan, Youtian Liang and Wenjuan Yang for support on data analysis and field work. We would like to thank Dr. Joseph Elliot at the University of Kansas for his assistance with English and grammatical editing of the manuscript, as well as the Scientific Collaborative Innovation Center of Ecological Conservation and Restoration for the Guangdong-Hong Kong-Macao Greater Bay Area and the National Urban Forest Innovation Alliance in China for research and intellectual support.

语种：英文

外文关键词：Anthropogenic noise; Bird sounds; Urban forests; Vegetation structure

摘要：As a crucial component of terrestrial ecosystems, urban forests play a pivotal role in protecting urban biodiversity by providing suitable habitats for acoustic spaces. Previous studies note that vegetation structure is a key factor influencing bird sounds in urban forests; hence, adjusting the frequency composition may be a strategy for birds to avoid anthropogenic noise to mask their songs. However, it is unknown whether the response mechanisms of bird vocalizations to vegetation structure remain consistent despite being impacted by anthropogenic noise. It was hypothesized that anthropogenic noise in urban forests occupies the low-frequency space of bird songs, leading to a possible reshaping of the acoustic niches of forests, and the vegetation structure of urban forests is the critical factor that shapes the acoustic space for bird vocalization. Passive acoustic monitoring in various urban forests was used to monitor natural and anthropogenic noises, and sounds were classified into three acoustic scenes (bird sounds, human sounds, and bird-human sounds) to determine interconnections between bird sounds, anthropogenic noise, and vegetation structure. Anthropogenic noise altered the acoustic niche of urban forests by intruding into the low-frequency space used by birds, and vegetation structures related to volume (trunk volume and branch volume) and density (number of branches and leaf area index) significantly impact the diversity of bird sounds. Our findings indicate that the response to low and high frequency signals to vegetation structure is distinct. By clarifying this relationship, our results contribute to understanding of how vegetation structure influences bird sounds in urban forests impacted by anthropogenic noise.