摘要
作为新设立的世界自然遗产地,盐城滨海湿地水鸟栖息地保护受到广泛关注。鉴于该区域在全球生物多样性与水鸟栖息地保护中重要性,针对具有空间隔离特征的水鸟栖息地开展网络稳定性研究,对提高遗产地栖息地保护质量具有重要的示范意义。基于此,利用复杂网络理论、生态踏脚石原理和电流模型,分析了盐城滨海湿地多类群水鸟栖息地网络结构现状及不同情景下网络鲁棒性。研究结果显示,三类水鸟重要生境区主要分布在各栖息地内部以及大丰至条子泥栖息地一带,其中,北部生境区数量为18个,南部生境区6个。北部生境区总面积相当于南部生境区的1/2,而平均面积仅相当于1/6。从踏脚石分布来看,其主要分布在重要生境区附近,不同栖息地存在差异。研究区踏脚石网络由35个重要节点和153个一般节点组成,南北部网络结构要素存在差异。最佳保护情景下,网络鲁棒性表现较好,中心度值大的节点对整个网络连通性的支撑作用良好。提出了栖息地网络优化方案。
As a newly established World Natural Heritage Site,the protection of waterbird habitats in Yancheng coastal wetland has attracted extensive attention.In view of the importance of this area in global biodiversity and waterbird habitats protection,it would be of great demonstration significance to carry out network robustness research on waterbird habitats with spatial isolation characteristics to improve the quality of habitat protection of the heritage site.In particular,the research on biodiversity in the region has a high global impact,and the research on habitat network would increase important demonstration value for the research on habitat protection of other species of the same type of wetland in the world.Therefore,this study used the complex network theory,the ecological stepping stone principle,and the current model to analyze the current situation of the habitat network structure of the multiple waterbird guilds in Yancheng coastal wetlands and the network robustness under different scenarios.According to the results of scenario simulation,this study carried out optimization research on habitat network structure.The results showed that the important habitat areas of the three guilds were mainly distributed in the interior of each habitat and the area from Dafeng to Tiaozini,including 18 habitat areas in the north and 6 habitat areas in the south.The total area of the northern habitat area was equivalent to 1/2 of the southern habitat area,while the average area was only equivalent to 1/6 of the southern habitat area.From the view of the distribution of stepping stones,these stones mainly distributed near important habitat areas,and there were differences in different habitat sites.The average area of stepping stones in the northern habitat area was 84.17 hm2,and the average area of stepping stones in the southern habitat area was 85.03 hm^(2).The stepping stone network in the study area was composed of 35 important nodes and 153 general nodes,and there were differences in network structure elements from
作者
王成
周诗薇
刘红玉
李玉凤
WANG Cheng;ZHOU Shiwei;LIU Hongyu;LI Yufeng(School of Marine Science and Engineering,Nanjing Normal University,Nanjing 210023,China;School of Economics and Management,Anhui Agricultural University,Hefei 230036,China)
出处
《生态学报》
CAS
CSCD
北大核心
2023年第22期9193-9205,共13页
Acta Ecologica Sinica
基金
国家自然科学基金(32201346,31971547,41871188)
江苏省重点研发计划(BE2018681)。
关键词
水鸟
栖息地网络
稳定性
盐城
滨海湿地
waterbirds
habitat network
robustness
Yancheng
coastal wetlands
