Northern Ireland Otter Survey Database

As part of a scheme to monitor the distribution of otters throughout the UK, two otter surveys in Northern Ireland have been carried out covering the years 1980-81 (funded by The Vincent Wildlife Trust as part of an all Ireland survey) and 2001-02 (Environment and Heritage Service (EHS), NI). The 1980-81 survey covered 10km areas within alternate 50km squares of the Irish National Grid using sites that were accessible and where there would be a likelihood of finding signs of otter activityâtypically road bridges and the confluences of watercourses. In the second survey (2001-02) 131 positive and 50 negative sites of the 1980 survey were re-sampled plus 441 new sites and combined with an intensive survey of Lough Erne (a designated cSAC for otters).

There are also Otter Survey databases for Scotland, England and Wales.

作为一项旨在监控英国海狸分布情况的计划的一部分，在北爱尔兰进行了两次海狸调查，分别涵盖了1980-81年（由文森特野生动物信托基金资助，作为爱尔兰全境调查的一部分）以及2001-02年（由环境与遗产服务（EHS），北爱尔兰）的时间段。1980-81年的调查在爱尔兰国家网格中交替的50平方公里方格内覆盖了10公里区域，选取了可及地点，且在这些地点有发现海狸活动迹象的可能性——通常为公路桥梁和水系交汇处。在第二次调查（2001-02年）中，对1980年调查中的131个阳性及50个阴性地点进行了重采样，并新增了441个地点，这些地点与对厄恩湖（被指定为海狸保护特殊区域（cSAC））的密集调查相结合。此外，苏格兰、英格兰和威尔士也存在海狸调查数据库。