Atlantic Coast Boundary

<div><span style='font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;'>This boundary outlines one of the priority areas, </span><font color='#3f3f3f' face='Merriweather, arial, sans-serif' size='3'>Atlantic Coast: Coastal Resiliency and Coastal Habitat Restoration,</font><span style='font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;'> designated by the Northeast Association of Fish and Wildlife Agencies' Landscape Conservation Wildlife Committee with input from state and federal agency staff. </span></div><div><span style='font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;'><br /></span></div><div><font color='#3f3f3f' face='Merriweather, arial, sans-serif' size='3'>The Atlantic Coast of the Northeast Region includes a diverse complex of wetlands, beaches, bays, estuaries, and rivers that support significant concentrations of resident and migratory fish and wildlife alongside human development.  In addition to impacts from human modification and encroachment, the marshes, beaches, and other coastal habitats and species are increasingly being impacted by rising sea levels and more frequent and intense storms such as Hurricane Sandy.   A coordinated landscape approach is needed to build on existing efforts by states and partners to accelerate planning and implementation of coastal habitat restoration resulting in increased resiliency of coastal natural systems, habitats, at risk listed and other priority species, and coastal communities in the face of these impacts.</font></div><div><font color='#3f3f3f' face='Merriweather, arial, sans-serif' size='3'><br /></font></div><div><font color='#3f3f3f' face='Merriweather, arial, sans-serif' size='3'>This layer was created in 2023 by the U.S. Fish and Wildlife Service using the </font><a href='https://www.epa.gov/eco-research/level-iii-and-iv-ecoregions-state' target='_blank' rel='nofollow ugc noopener noreferrer'>EPA's Level III and IV Ecoregions by State</a>. Some modifications were made to the inner boundaries of the ecoregions to exclude highly developed/non-coastal areas. The final merged polygon was buffered by 100 meters.</div>

本边界划定了一处优先研究区域——大西洋海岸：海岸韧性与海岸生境修复，该区域由东北鱼类和野生动物机构协会（Northeast Association of Fish and Wildlife Agencies）下属的景观保护野生动物委员会（Landscape Conservation Wildlife Committee）在州级与联邦机构工作人员的参与下指定。

东北区域的大西洋海岸拥有由湿地、海滩、海湾、河口与河流构成的多样化复合生态系统，不仅承载着规模可观的定居性与洄游性鱼类及野生生物种群，同时也伴随广泛的人类开发活动。除人类活动改造与侵占带来的干扰外，沼泽、海滩及其他海岸生境与相关物种正日益受到海平面上升，以及飓风桑迪这类更频繁、强度更高的风暴事件的冲击。亟需采用协同景观尺度的保护方法，依托各州与合作伙伴的现有工作，加快海岸生境修复的规划与实施进程，从而提升海岸自然系统、各类生境、受威胁濒危物种及其他优先保护物种，以及沿海社区在面对上述环境压力时的韧性。

本专题图层由美国鱼类及野生动物管理局（U.S. Fish and Wildlife Service）于2023年基于美国环境保护署（EPA）的《州级III、IV级生态区》数据集制作完成。研究团队对生态区的内部边界进行了部分调整，以排除高度开发的非沿海区域。最终合并得到的多边形矢量图层进行了100米的缓冲处理。