Integrated Site Assessment Species Records

Integrated Site Assessments are carried out by Natural England staff to assess the condition of notified features on Sites of Special Scientific Interest, and Indicators of Success on Higher Level Stewardship agri-environment schemes. The ISA process integrates surveys for both purposes, so where they co-occur they are usually recorded together. Individual surveys include the recording of a variety of species within SSSI Units and/or Rural Land Register Parcels, as well as other non-biotic measurements such as vegetation structure, which together are used in the assessment of SSSI feature condition, Indicators of Success, or both. Species records are associated with the SSSI units and/or RLR Parcels containing the list of features which are the subject of each part of the ISA survey, so survey 'feature lists' are used to define discrete geographic areas within which the species were recorded. Precise BNG grid references, or eastings and northings, are not recorded for individual species, and the precise extent of the features (usually semi-natual habitats) within the SSSI units and/or RLR parcels is unknown. Each species record is provided with additional attribute information including the list of features assessed, the variable and summary value. Species recorded are mostly vascular plants, often because they are used within ISAs to indicate good or poor habitat condition. Only species that were actually seen are included - there are no 'absence' records.
Attribution statement: © Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right [year].

英国自然英格兰工作人员执行综合场地评估，以评估特殊科学兴趣场地内通报特征的状况，以及高级耕作环境管理计划中的成功指标。综合场地评估（ISA）流程将旨在上述两方面的调查整合，因此当它们共存时，通常会被一并记录。单独的调查包括在特殊科学兴趣场地单元和/或乡村土地登记地块内记录多种物种，以及其他非生物测量，如植被结构，这些测量结果共同用于评估特殊科学兴趣场地特征的状况、成功指标，或两者兼具。物种记录与包含各ISA调查部分特征列表的特殊科学兴趣场地单元和/或乡村土地登记地块相关联，因此调查特征列表被用于定义物种记录的离散地理区域。对于个别物种，未记录精确的BNG网格参考点或经纬度，且特殊科学兴趣场地单元和/或乡村土地登记地块内特征的精确范围（通常是半自然生境）尚不明确。每个物种记录都提供了额外的属性信息，包括评估的特征列表、变量及汇总值。记录的物种主要是维管植物，通常因为它们在综合场地评估中用于指示良好或恶劣的生境状况。仅包括实际观察到的物种——不存在任何“缺失”记录。