The interpretation of condition assessments made using common
standards monitoring approaches will often require access to
contextual data. This enables the monitoring assessments to be
viewed in a broader geographical or temporal perspective (e.g. by
comparing results for a particular feature with trends in the wider
environment in the UK or beyond). Contextual information may be
collected by the conservation agencies or may be provided by the
activities of other institutions.
National biodiversity surveillance programmes, such as
Countryside Survey 2000, the Wetland Bird Survey (WeBS) and the
BSBI and Butterfly Monitoring Schemes, provide information on the
status of biodiversity across the UK, and allow site-based
information to be considered in a wider context. Other useful
sources of information may include data on air pollution levels,
models of the potential impacts of climate change, and data on
trends in pesticide use, fertiliser application, etc.
On some sites, long-term surveillance programmes have been
established, e.g. permanent quadrats or transects which are
recorded at regular intervals. These will yield site-specific
information on trends, which will support interpretation of common
standards monitoring assessments.
In addition, the information referred to in this section may
be the source of data required to ascertain whether target levels
for attributes have been met, or whether species are present on a
particular site.