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Can urban forests provide acoustic refuges for birds?Investigating the influence of vegetation structure and anthropogenic noise on bird sound diversity
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作者 Zezhou Hao Chengyun Zhang +8 位作者 Le Li Bing Sun shuixing luo Juyang Liao Qingfei Wang Ruichen Wu Xinhui Xu Christopher A.Lepczyk Nancai Pei 《Journal of Forestry Research》 SCIE EI CAS CSCD 2024年第2期163-175,共13页
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... 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. 展开更多
关键词 Anthropogenic noise Bird sounds Urban forests Vegetation structure
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分子标记在濒危物种保护中的应用 被引量:4
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作者 李媛媛 刘超男 +4 位作者 王嵘 罗水兴 农寿千 王静雯 陈小勇 《生物多样性》 CAS CSCD 北大核心 2020年第3期367-375,共9页
分子标记可揭示种群遗传和进化信息,为制定濒危物种保护措施、指导恢复实践提供重要依据。本文主要介绍了分子标记在濒危物种保护过程不同环节中的应用,包括:(1)正确识别保护单元,如排除隐存种和杂交种的影响;(2)确定优先保护单元,包括... 分子标记可揭示种群遗传和进化信息,为制定濒危物种保护措施、指导恢复实践提供重要依据。本文主要介绍了分子标记在濒危物种保护过程不同环节中的应用,包括:(1)正确识别保护单元,如排除隐存种和杂交种的影响;(2)确定优先保护单元,包括优先保护区域、优先保护物种、优先保护种群等;(3)指导迁地保护;(4)对保护工作的动态监测和评估。文章最后探讨了分子标记应用于保护的发展方向,如开展长期的种群遗传组成监测、切实应用于保护管理实践、将基因组学等遗传信息用于全球变化背景下保护策略的制定等,期望为分子标记技术在生物多样性保护的研究和实践中提供参考。 展开更多
关键词 分子标记 隐存种 杂交 进化显著单元 管理单元 迁地保护 保护基因组学
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