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Features
- Connectivity
Lets
get connected
NPA Connectivity projects
Connect to Protect
Key Habitats and Corridors
North-east New South Wales
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Lets
get connected
NPA
Executive Officer ANDREW COX gives an overview of the rise
of connectivity as a critical conservation issue.
It is
clear that 'connectivity' is the big catch-word in biodiversity
conservation for the current decade.
Ramsar
Convention Secretary General, Peter Bridgewater, put it bluntly
when speaking at the World Parks Congress in Durban, South
Africa in 2003:
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Protected
areas are often seen as 'hermetically sealed bubbles' or 'islands
of conservation in an ocean of destruction'. But
unless protected areas are part of well-managed landscapes/seascapes,
there will be nothing to protect.
Durban Link,
a key Congress output, states there is 'a clear view that the key
to linkages is that parks exist not as unique islands, but as places
in a matrix.'
It continues: 'One conclusion was that park management needs to
focus on the ecological, biophysical and bio-cultural linkages happening
on land and sea, because ignoring the matrix is the most dangerous
part of trying to ensure long term conservation. A second conclusion
was that protected areas both need and can provide for ecological,
cultural and social resilience if managed in an ecologically sustainable
land/seascape, and that therefore they are the 'resilience parachutes'
of the world, concentrates of biological and cultural diversity.'
Australian scientists were instrumental in building a strong case
for the important role of corridors and connectivity in the heavily
cleared Western Australia wheat belt during the 1980s and 1990s.
While much of this has translated into action on the ground to put
in place an effectively managed conservation network in the WA wheat
belt, elsewhere, progress has been decidedly slow.
A selection of other standout work that advances the connectivity
theme includes:
The Role of Connectivity in Australian Conservation (Soule et. al.
2004) A landmark scientific paper that pulls together the latest
thinking on the importance of connectivity for biodiversity.
Gondwana Link: This collaborative initiative in south-west WA led
by five non-government groups seeks to undo the damage done by clearing
for agriculture and counter the extinctions that are probably due
to salinity, fragmentation and global warming. The first step aims
to establish a link joining the 100 km gap between Fitzgerald River
and Stirling Ranges national parks. In the long term, it seeks to
restore biodiversity and ecosystem function across an arc of more
than 1,000 km extending from Margaret River in the west, through
the Karri forests and then east to the drier eastern ecosystems
to Kalgoorlie. After more than five years work, the plan is well
developed and over 70,000 seedlings have already been planted. See
www.gondwanalink.org.
NPA
Connectivity projects
NPA has incorporated
connectivity into its recent work. Eastern Links is the new
name for the NPA vision of a continuous network of conservation
reserves protecting the NSW Eastern Highlands from the Victorian
to Queensland borders. The NSW Government has taken part of
this up with its promise of creating a continuous chain of reserves
from Victoria to the Hunter Valley. NPA-West takes the connectivity
theme a step further by using major river corridors such as
the Murray River as building blocks to build a landscape-wide
vegetation matrix in the heavily cleared western woodlands.
With the land being under private management, NPA-West will
focus on collaborative approaches with landholders to build
support. |
Connect
to Protect
JOHN MACRIS has been instrumental in the establishment of NPA's
new Connect to Protect campaign. Here he describes the process
....
Throughout many
parts of the world, concerned people are looking at their region's
nature conservation estate and daring to visualise ways of securing
into the future the values they now see. In some regions, there's
precious little area dedicated for conservation and the challenge
is to repair degradation, acquire new formal reserves and set up
long lasting informal protection measures across the landscape.
NPA's work in the inland regions such as the Riverina, and in the
marine environment, are good examples along these lines.
Along the eastern highlands and seaboard, where there is now a fairly
solid backbone of National Parks created from mainly public land,
our vision is about setting up a true networked conservation landscape
extending through southern Queensland, NSW, the ACT and Victoria.
Not just a network hugging the steep lands that remain forested
- as much due to their stubborn rugged resilience as to our passions
on their behalf - but rather one that also samples east-west sweeps
of diverse habitats, from grassed open forests of the tablelands
to alluvial woodlands of the coastal lowlands.
The launch of the NPA report Connect to Protect - Eastern Links
is set to occur very shortly It is the culmination of a process
spanning several years.
It is better, though, to think of it as the start of something:
we now take the concept to politicians and potential external allies
(already there have been cooperative approaches with the Wilderness
Society's Wild Country project). The building of 'people networks'
is recognised as a key to achieving ecological networks. We will
seek new gains in some of the significant conservation gaps such
as the upper Manning and Hunter catchments, Robertson Plateau and
several proposed east-to-west branches.
Treat it if you like as a kind of friendly race with other corridor
programs around Australia such as Western Australia's ambitious
Gondwana Link, or the Riverlands to Mallee efforts in South Australia.
More information
To learn more about Connect to Protect, visit the NPA web site,
www.npansw.org.au/connecttoprotect
Key
Habitats and Corridors North-east New South Wales
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The
Key Habitats and Corridors (KHC) project identifies, for the
first time, a regional framework for the conservation of forest
fauna in north-east New South Wales, writes ASHLEY LOVE
The KHC
approach was developed by David Scotts and Michael Drielsma
at the NSW Department of Environment and Conservation (DEC).2,4
It provides
for the systematic consideration of forest fauna as a conservation
focus across the landscape by adopting both species and ecological
processes as planning tools.
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The Connect
to Protect - Eastern Links projected future macro corridor
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Initially, the
distributions of key species for conservation are individually modelled
across the landscape. The individual models for up to 100 species
are then integrated into assemblages of species with similar distributions
with the aid of innovative Geographic Information System (GIS) analysis
tools.
From the assemblages, regional key habitats for forest fauna are
identified as landscape focus areas for habitat protection and as
potential protected area cores and buffers. Linkage pathways are
then identified and refined to map regional and sub-regional corridors
that link the key habitats. These corridors also act as focus areas
for habitat protection, enhancement and restoration. Finally, key
habitats and corridors are consolidated as a regional landscape
conservation framework. The mapped outputs provide the only spatially
complete, data-driven and systematically derived conservation planning
framework currently available for the region.
The north-east KHC is available on the DEC
website.1 The website provides mapped
key habitats and corridors, lists of the species behind the derivation
of each corridor and species profiles. Landholders, for example,
can use the website to identify whether their property is part of
a key fauna habitat or wildlife corridor; the species likely to
utilize the habitat or corridor; and find out how to identify those
species on their properties.
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Extension
of KHC
The seamless extension of the north-east KHC to the Nandewar
Bioregion was a logical step for fauna conservation planning
during the recent Western Regional Assessment in that area.
Following several years of systematic fauna surveys in the
Bioregion, fauna ecologists used a range of information, including:
point localities of species and habitats; field knowledge
and environmental information such as vegetation information;
and soil fertility, to derive a mapped output of KHC for the
bioregion.3
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Example
of a map of Key Habitats and Corridors from the NPWS Key Habitats
and Corridors website.
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Although this
approach was different to that used for the derivation of KHC in
north-east NSW, it produced a definitive KHC, reflecting the availability
of data on the coast.
The KHC approach has been expanded to other areas of NSW including
the Central Coast, parts of the South Coast and the Southern Tablelands.
Application in conservation planning
KHC has received broad support and has been widely incorporated
into conservation planning in north-east NSW at a range of planning
scales and processes.
On the state-wide scale, KHC was considered by the National Parks
Association in developing its Eastern
Links project. KHC has been used extensively by state government
agencies in regional and local planning. It has been used by the
Northern Rivers, Gwydir, Border Rivers and Hunter and Central Rivers
Catchment Management Authorities in the development of priorities
for conservation and restoration.
The Department of Planning has used KHC in regional strategic planning
for the Lower Hunter, the Far North Coast and the South Coast. It
is being used by the Department of Environment and Conservation
for threatened species, reserve and acquisition planning as well
as for regional conservation planning in coastal regions. KHC has
been used by the Roads and Traffic Authority in planning upgrades
for the Pacific Highway and by the Department of Lands for Crown
land and Crown leasehold assessment.
Local government authorities have broadly adopted KHC as a matter
for consideration in determining development proposals. A number
of Councils have incorporated KHC more broadly into local environmental
planning. For example, Byron Shire has included KHC (with local
refinements) into proposed environmental protection zones and Great
Lakes Shire Council has incorporated KHC into planning for urban
release areas.
New developments
New modelling approaches are being developed by DEC, building on
the earlier applications of KHC. One major new development relies
on a new modelling approach that predicts how much of an area's
biodiversity is likely to persist into the future given a particular
land use scenario.
In this approach, broad vegetation communities can be used as surrogates
for biodiversity or the persistence of individual species can be
analysed.5 By predicting the contribution to
persistence made by habitat patches (instead of merely presence
or absence of a species), this approach represents a leap forward
from the existing static habitat models.
References
1. National Parks and Wildlife Service.
Key Habitats and Corridors in North East NSW. Online at
http://maps.nationalparks.nsw.gov.au/keyhabs/default.htm
2. Scotts D. 2003. Key habitats and corridors
for forest fauna: a landscape approach for conservation
in north-east New South Wales. NSW NPWS Occasional Paper 32. NSW
Department of Conservation and the Environment.
3. Andren M. 2004. Nandewar biodiversity
surrogates: vertebrate fauna. Report for the Resource and
Conservation Assessment Council (RACAC) NSW Western Regional Assessments.
Project No. NAND05. Department of Environment and Conservation,
Coffs Harbour.
4. Scotts D & Drielsma MJ. 2003. Developing
landscape frameworks for regional conservation planning:
an approach integrating fauna spatial distributions and ecological
principles. Pacific conservation Biology 9: 96-119.
5. DEC 2004. Nandewar WRA Landscape Conservation.
Report for the Resource and Conservation Assessment Council (RACAC)
NSW Western Regional Assessments. Project No. NAND01. Department
of Environment and Conservation, Coffs Harbour.
About the author
Ashley Love is the Manager, Conservation Assessment and Data Unit,
North East Branch, Environmental Protection and Regulation Division,
Department of Environment and Conservation, Coffs Harbour.
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