Water vole distribution within Broadland (2003-2006): based upon field signs, sightings and trapping data
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资源简介：
Each record indicates that water voles are present at a given grid reference. They are either a direct sighting or indirect in the form of a latrine or feeding station being present. For the purpose of this data set both direct and indirect are termed as a positive field record.
创建时间：
2017-05-09
