There is a lot of talk about natural capital and ecosystem services at the moment. One of the ways of protecting our capital and services is establishing a national ecological network. So what is that?
A National Ecological Network (NEN) consists of robust and healthy ecosystems, capable of sustaining the full range of ecosystem services upon which Scotland depends and which are vital for Scotland’s sustainable development.
A well planned NEN built on sound ecological principles protects ecosystems and their services through the plants and fungi that are the basis of all ecosystems. This is the mechanism that can ensure that local development management takes place within a sustainable national context.
While a NEN can only be effective if delivered at a national scale, aiming to re-connect Scotland’s fragmented ecosystems across mainland Scotland and its islands, its delivery must be planned at a relevant scale locally. This provides a national green infrastructure, complementing the built infrastructure projects of national planning frameworks.
Designing an effective NEN, however, requires robust understanding and modelling of the elements that support ecosystem services. These services include resistance to disease, pollination, water regulation and soil fertility for example. For these services to continue to be available to people, they require robust and diverse ecosystems, founded upon self sustaining and genetically diverse species populations. These populations and the habitats they comprise are an essential consideration in proposals for development throughout the country if we are to retain the ecosystem services we all rely on.
This approach is encapsulated by the Important Plant Areas (IPA) initiative, which meets targets 4 and 5 in the Global Strategy for Plant Conservation (GSPC), to which the UK and Scottish governments are committed through the Convention on Biological Diversity, and provides an ecological coherent basis for a green infrastructure.
Delivery of IPAs in Scotland has to date focussed on their identification and management advice, which is now being effectively rolled out, across the West Coast IPA and North Coast IPA. A funding bid is in place to secure parallel advances in the Cairngorms IPAs. However, Scotland, as a whole, is at a stage where the detail of how built development can adversely affect ecosystem functionality needs to be addressed within a national context. This could be part of the recently updated Scottish Land Use Strategy and the Climate Change Adaptation Framework, both of which look to an integrated approach for development and management in a changing and uncertain climate.
This national ecological network approach achieves 3 objectives:
1. Improving the quality and resilience of Scotland’s natural environment,
2. enabling species and habitats to adapt to climate change by linking fragmented ecosystems together and providing means for species to move from site to site
3. maintaining and protecting ecosystem services in the future.
It also provides the context for the development of effective green infrastructure in the long term.
Scotland’s international reputation for a high quality environment, itself providing a market for skills development and job creation across Scotland, will only be maintained through creating this network. We need to start to implement it across the country using the established models already in place if we are to gain from it.
Read more here:
Scotland’s Important Plant Areas (2015) Plantlife. www.plantlife.org.uk/publications/scotlands_important_plant_areas