For each interest feature, favourable condition will be
defined by setting broad targets for each attribute. As a general
guide, favourable condition will reflect the state of an interest
feature at the time of its selection but with the proviso that the
ecological or other processes supporting the feature should be such
as to enable it to maintain its condition over time. In practice,
the site condition at the time of selection may not be known, or be
inappropriate, in which case the guidance provided in this manual,
adjusted to meet the particular circumstances of the site as
determined by best judgement, can be used to determine favourable
condition.
Targets should be set to ensure that habitats and species
populations are maintained in a condition which is likely
to be sustained over the foreseeable future, in line with
the principles of favourable conservation status (see section 5.2).
For example, a wetland feature that requires a certain water level
regime to maintain it, will not be considered as being in
favourable condition if the water level requirements are not being
met, irrespective of whether the plant and/or animal community
targets were met at the time of monitoring. This is because it is
entirely foreseeable that these attributes will not be maintained
over time. In this example, the target for the water regime will be
set at the level to be reached to maintain the wetland feature
(i.e. possibly different from what it was at the date of site
selection).
However, targets should not (for common standards monitoring
purposes) be set at levels which seek to achieve substantial
improvements to the feature beyond that needed to maintain its
biological or earth science interest at the time of selection. In
certain exceptional circumstances, where the feature was selected
with the specific view to improving it to a better state (e.g.
degraded raised bogs), the biological targets for favourable
condition can be set significantly higher than was their condition
at the time of selection. This is, however, an exceptional
circumstance and not to be applied generally.
Targets for species and habitat features must reflect
ecological variation and, where relevant, local distinctiveness; in
many cases they will be determined by site-specific factors (see
section 16). However, guidance on setting
appropriate target values has been provided wherever possible, e.g.
by specifying a range of values within which site-specific targets
should lie.
For geological sites
that are being preserved, a
target of no reduction in quality or quantity of the features of
interest is generally applicable. Targets set for any particular
interest feature may also need to take into account the
conservation objectives of other features on the site (see sections
8 and
16).