基于生物性状分析方法的不同恢复阶段无瓣海桑人工林湿地大型底栖动物生态功能研究  

A biological trait approach to assess ecological functions of macrobenthos at different stand age of rehabilitated Sonneratia apetala mangrove

作　　者：李亚芳[1] 杜飞雁[1] 王亮根[1] 谷阳光[1] 宁加佳[1] LI Yafang, DU Feiyan, WANG Lianggen, GU Yangguang, NING Jiajia(Guangdong Provincial Key Laboratory of Fishery Ecology and Environment; Key Laboratory of South China Sea FisheryResources Development ＆ Utilization, Ministry of Agriculture; South China Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences, Guangzhou 510300, Chin)

机构地区：[1]中国水产科学研究院南海水产研究所广东省渔业生态环境重点实验室农业部南海渔业资源开发利用重点实验室,广东广州510300

出　　处：《南方水产科学》2018年第3期10-19,共10页South China Fisheries Science

基　　金：中国水产科学研究院南海水产研究所中央级公益性科研院所基本科研业务费专项资金资助(2014TS22);科技部基础资源调查专项项目(2017FY201405)

摘　　要：根据2014年11月在深圳福田国家级自然保护区裸滩、8年、9年、14年、16年和20年无瓣海桑(Sonneratia apetala)人工林以及天然白骨壤(Avicennia marina)红树林生物调查数据,通过"裸滩-人工林-天然红树林"对照分析,对不同恢复阶段无瓣海桑人工林大型底栖动物生物性状分布模式、功能多样性和功能冗余以及与环境因素之间的关系进行研究。结果表明,裸滩、8至16年无瓣海桑人工林以及天然林和20年林龄人工林分别具不同的性状分布模式;其中栖息地结构越复杂和有机质含量越高,大型底栖动物中低迁移能力、较小个体和栖息方式为爬行/游泳型、幼虫为浮养幼虫以及食性为沉积食性和植食性的物种所占比例越大。功能多样性总体上随栖息地结构复杂性和有机质含量的增加呈先增加后降低的趋势;功能冗余则呈红树林样点远高于裸滩的趋势。总体而言,红树林栖息地结构复杂性的适量增加对大型底栖动物生态功能较为有益。Based on the investigation data collected from mudflat, rehabilitated Sonneratia apetala mangroves at stand age of 8, 9,14, 16 and 20 years and Avicennia marina natural mangrove forest of Futian National Nature Reserve in Shenzhen, we studied the ecological functions of macrobenthic community at different stand age by analyzing biological trait patterns, functional diversity and functional redundancy. Results show that the mudflat, 8-, 9-, 14-and 16-year-old stand rehabilitated S.apetala mangroves, and 20-year-old stand natural mangrove forest had different trait patterns. The more complex the structure of the habitat and the higher the content of organic matter were, the more species with lower mobility, smaller body size, surface crawler/swimmer, planktotrophic,deposit-feeder and herbivore were observed. Generally, the functional diversity increased at first then decreased with increasing habitat structure and sediment organic matter content. The functional redundancy was generally high in the mangrove. To sum up, moderate increase in habitat structure of mangrove is more beneficial to the ecological functions of macrobenthic community.

关 键 词：大型底栖动物 生物性状 功能多样性 功能冗余 恢复阶段 无瓣海桑人工林 栖息地结构 

分 类 号：Q958.8[生物学—动物学]