Environment Waikato (EW) has been
investigating options for biodiversity
prioritisation since the early 2000s but the project has been slow to
get off the ground. During 2008, however, the project is starting to
come to fruition and EW aims to map, inventory, score and prioritise
where possible all 'Ecologically Valuable Areas' (EVAs) for most of the
ecosystem types within its region over the next few years.
The task is massive, especially for indigenous terrestrial ecosystems
and also because the scale of data capture means EVAs, or 'Sites' as
they are commonly called, may be as small as around 0.5ha. EW approaches
the task one district at a time (there are 12 in total in the Waikato
Region) and given the SNA work already being undertaken by some
districts, EW makes sure to work with these councils where possible to
avoid duplicating work.
The system being used has no name but is commonly referred to as the
Biodiversity Prioritisation project. It begins as a desktop GIS
excercise where qualified ecologists spatially inventory any indigeneous
terrestrial vegetation, sand dunes or palustrine wetlands that may
potentially be locally, regionally, nationally or internationally
significant using 11 criteria as defined in appendix 3 of
EW's
regional policy statement. All sites that are at least
regionally significant are then
to be further evaluated by the ecologists and scored and ranked using
criteria still under development here at EW. Again it is a hugely time
consuming task given the level of detail and therefore the work is being
done one district at a time. The data is documented in metadata and
reports and ultimately will be stored in Oracle Spatial.
EW is also aware of DoC's Biodiversity Information Management
System and NHMS databases and intends to work
more closely with relevant conservancies to reduce the overlap here
where possible. There are still some issues to address, but it is
expected that data comprising proposed sites for a couple of districts
will be complete within a few months and subsequent data to become
available as resourcing allows.
Contact
For more information contact Derek Phyn or
Yanbin Deng.