摘要
在红树林生态系统中,水鸟多样性被认为是衡量红树林生态系统健康的重要指标。水鸟对环境因子的敏感性不同会导致其栖息地选择的差异,这些差异共同影响了红树林水鸟的物种多样性。开展红树林水鸟多样性及其影响因子分析,从景观尺度研究影响水鸟多样性的因子,可为广东省红树林生态系统健康评估及水鸟保护提供重要参考。文章分析了广东省红树林水鸟物种组成及动态变化,并应用冗余分析(Redundancy analysis,RDA)方法探讨了影响红树林水鸟多样性的因子及相关性。结果如下:(1)广东红树林水鸟物种数、国家重点保护物种数和香农指数分别由2018年的56种、10种和2.4921提升至2022年的88种、23种和2.7423;(2)RDA检验显示水鸟类群各典型轴对物种-景观因子关系方差的累积解释均超过96%,且蒙特卡罗排列检验具有显著性(p<0.05),说明前两个典型轴可以很好地解释水鸟物种与景观因子变量之间的相关性;(3)RDA分析表明红树林面积、滩涂面积和水产养殖池面积是影响水鸟多样性的正向因子,人为干扰因子如道路和建设用地面积是影响水鸟多样性的负向因子。
Waterbird diversity is considered an important indicator to measure the health of mangrove eco-systems.The sensitivity of different waterbirds to environmental driving factors results in differences in habitat selection,which in combination affect waterbird diversity.The analysis of species diversity and its impact fac-tors from the landscape scale can provide an important reference for the health assessment of the mangrove eco-system and waterbird conservation in Guangdong Province.This study analyzed the species composition and dy-namic changes of waterbirds and further explored the factors affecting the diversity of mangrove waterbirds by re-dundancy analysis(RDA).The results show that:1)From 2018 to 2023,the number of bird species in-creased from 56 to 88,among which,the number of national key protected species increased from 10 to 23,the Shannon-wiener index increased from 2.4921 to 2.7423;2)The cumulative interpretation of the variance of the species-landscape factor relationship for each canonical axis of waterbird taxa exceeded 96%,and the Monte Carlo permutation test was significant(p<0.05),the first two canonical axes can well explain the cor-relation between waterbird species and landscape factors;3)Mangrove area,beach area,and aquaculture pool area are positive factors affecting the diversity of waterbirds,and human disturbance factors such as road and construction land area are negative factors affecting the diversity of waterbirds.
作者
屈明
刘源志弘
邓诗泉
刘曦庆
梁惠玲
杨锡涛
于冬梅
QU Ming;LIU Yuanzhihong;DENG Shiquan;LIU Xiqing;LIANG Huiling;YANG Xitao;YU Dongmei(Guangdong Forestry Survey and Planning Institute,Guangzhou,Guangdong 510520,China;Institute of Zoology,Guangdong Academy of Sciences/Guangdong Key Laboratory of Animal Conservation and Resource Utilization,Guangzhou,Guangdong 510260,China;Guangdong Society of Zoology,Guangzhou,Guangdong 510260,China;Xiyan Natural Resources Technology(Guangzhou)Co.,Ltd,Guangzhou,Guangdong 510300,China)
出处
《林业与环境科学》
2023年第6期11-19,共9页
Forestry and Environmental Science
基金
2022年度自然资源事务管理—生态林业建设专项资金项目:广东省林业科技创新项目(2023KJCX028)
生物多样性专项(2022GDASZH-2022010105)
广东省科学院科技发展专项(2022GDASZH-2022010106)。
关键词
红树林
水鸟
物种组成
影响因子
冗余分析
mangrove
waterbirds
species composition
influence factors
redundancy analysis
作者简介
第一作者:屈明(1982-),男,高级工程师,主要从事湿地资源调查监测、湿地保护与修复等研究,E-mail:46237038@qq.com;通信作者:杨锡涛(1986-),男,助理研究员,主要从事野生动物保护与动物生态研究工作,E-mail:1024807242@qq.com;通信作者:于冬梅(1981-),女,助理研究员,研究方向为动物学、保护生物学,E-mail:yudongmei50@163.com。
