应用生态学报2017，Vol.28Issue(4)：1360-1369,10.DOI:10.13287/j.1001-9332.201704.001
长江口东滩湿地芦苇生境大型底栖无脊椎动物群落结构的月动态
Monthly changes in the benthic macro-invertebrate community structure in the habitats of Phragmites australis marsh in the Dongtan wetland of the Yangtze River estuary, China
摘要
Abstract
Based on the data of the benthic macro-invertebrates community in the Phragmites australis marsh in the Dongtan Wetland of the Yangtze River estuary collected from May 2015 to April 2016,we evaluated the monthly variations in the species composition,biodiversity and community structure of the benthic macro-invertebrates.The results showed that the average height and degree of coverage for P.australis increased monthly from March to August,and then deceased from September.The density and aboveground biomass (dry mass,g) of P.australis peaked in July.A total of twenty species (including 2 species only identified to genus level and 2 species identified to family level) were found in the survey periods,including 11 Gastropoda,5 Malacostraca,2 Insecta and 2 Polychaeta.Three snail species (Assiminea latericea,Assiminea violacea and Cerithideopsis largillierti) dominated the benthic communities in terms of numerical abundance.The number of epifauna species was the most (11 species),followed by 5 burrowing species and 4 infauna species.There were significant monthly variations in the density and biomass of the macro-invertebrates.The density and biomass of benthic community reached the maximum in August.The Margalef's species richness index (D) and Shannon index (H) showed significant differences monthly,but Pielou's index (J) except in November.Three macro-zoobenthic assemblages were identified with the 42％ similarity level.The non-Metric Multidimensional scaling plot indicates that the benthic community in May,October and November was distinct compared to that in the other months.The present study suggested the density of the benthic macro-invertebrates community in the P.australis marshes was somewhat correlated with water temperature,underground biomass and salinity.But those correlation were not significant (P＞0.05).Because of the continuous impact of anthropogenic activities,the biodiversity of the benthic macro-invertebrate comnmunity has been decreasing for several years.More attention should be paid to the habitat value of the P.australis marshes in the future.关键词
长江口/芦苇/底栖动物/优势种/生境价值Key words
Yangtze River estuary/Phragmites australis/zoobenthos/dominant species/habitat value引用本文复制引用
张衡,叶锦玉,梁晓莉,朱小静,靳少非,陈渊戈,张佳蕊,戴阳..长江口东滩湿地芦苇生境大型底栖无脊椎动物群落结构的月动态[J].应用生态学报,2017,28(4):1360-1369,10.基金项目
本文由上海市自然科学基金项目(15ZR1450000)、中央级公益性科研院所基本科研业务费专项(2015M07)、河口海岸学国家重点实验室开放基金项目(SKLEC-KF201403)和国家自然科学基金项目(31170508)资助 This paper was supported by the Shanghai Natural Science Fund (15ZR1450000),the Special Funds of Basic Research of Central Public Welfare Institute(2015M07),the Open Research Fund of State Key Laboratory of Estuarine and Coastal Research (SKLEC-KF201403) and the National Natural Science Fundation of China (31170508). （15ZR1450000）
