Severn Estuary High Tide Waterbird Roost Sites (Gloucestershire)

Identification of wintering waterbird high tide roosts on the Severn Estuary SSSI/SPA completed in four phases:Phase 1 includes the Brean Down to Clevedon stretch. Phases 2 & 3 were completed at the same time. Phase 2 included the Clevedon to Oldbury stretch and Phase 3 Bridgwater Bay. Phases 2 & 3 also identified the subsites within Steart Marshes in Bridgwater Bay.Phase 4 includes the Gloucestershire area.This is a spatial dataset that identifies the locations of waterbird high tide roost sites in the Severn Estuary; and characterises the habitat(s) and waterbird composition. Information on the presence of waterbirds and their roost site characteristics was collected for each sector from the following sources: (i) WeBS core count (ie, high tide) data supplied by the BTO; (ii) interviews with the relevant WeBS counter; and (iii) site visits. This study provides much more detailed information than is generally available for the BTO collected WeBS data. The roost locations will help to determine whether the activities associated with a proposed plan or project could lead to impacts which have a significant adverse effect upon any given species or assemblage of water bird(s). Attribution statement: © Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right [year].

对塞文河口SSSI/SPA的越冬水鸟高潮位栖息地进行识别，该研究分为四个阶段完成：第一阶段包括布兰顿至克莱夫登的段落。第二阶段与第三阶段同时完成，第二阶段包括克莱夫登至奥尔德伯里段落，第三阶段为布里奇沃特湾。第二阶段和第三阶段还识别了布里奇沃特湾斯泰特湿地内的子站点。第四阶段包括格洛斯特郡地区。这是一个空间数据集，用于识别塞文河口水鸟高潮位栖息地的位置；并描述了栖息地特征和水鸟组成。关于水鸟的存在及其栖息地特征的信息是从以下来源收集的：（i）由英国鸟类观察站（BTO）提供的WeBS核心计数（即高潮位）数据；（ii）与相关WeBS计数员的访谈；（iii）现场考察。本研究提供的信息比BTO收集的WeBS数据通常可提供的信息更为详尽。栖息地位置将有助于确定拟议的计划或项目相关活动是否可能导致对任何特定物种或水鸟群体产生重大不利影响的后果。归属声明：© 自然英格兰版权。包含英国皇家版权和数据库权利[年份]。