Paul Jepson of ecosulis the first speaker of the day, stating that #rewilding presents a new narrative in conservation fit for the 21st century. There are many actors shaping it, but in particlar its an opportunity for young people to shape and define their future environment
He says the science behind current laws in particular Natura2000 are based on science which is 50 years out of date. We need to redesign laws across Europe based on a new narrative and incorporating modern scientific thinking on rewilding
Next we move onto Frans Schepers - Rewilding European Landscapes. Who starts by highlighting the development and debates in rewilding science and the 'skyrocketing' numbers of publications. However he says most are based on opinion more than practice
Using the example of the Netherlands he points out that what is now called rewilding. Began as 'Nature Development' in the 1980's with projects such as OSV, Plan Stork and Living Rivers. They moved from defensive to offensive approach to nature conservation
He points to four conceps that have come from the dutch experience. Seen in the image below.
Next Frans introduces the state of rural depopulation shown in dark green on this map, causing the collapse of many rural communities. The problem cannot be solved by subsidies and stresses we need new solutions
This, alongside greater human tolerance are two factors that have led to a wildlife comback across much of mainland Europe. With wildlife in turn becoming more relaxed around people
Frans then moves onto #rewilding and its potential reduce carbon emissions. Which he says make it a strong policy driver as we move forward, however large investments in rewilding, partnerships and research are needed
"The goal of #rewilding is not to restore a painting that then needs curating, it is about restoring a system that can look after itself" Rewilding is about moving landscape along a scale towards reduced management
Frans brings in examples of rewilding in practice stating how rewilding europes projects all have different focuses. From reducing forest fires in Portugal; rewilding-hunting models in Croatia; co-existence corridors in the Apenines and a bison economy in the Carpathians
How do we scale-up rewilding practice? - Frans identified 1) wilder nature, 2) wildlife comebacks, 3) nature-based economies, 4) Interest in the wild, 5) demonstrate rewilding, 6) create enacting policy, 7) connect with private sector and finance, 8) link with science
Frans ends with this word cloud from the young rewilders community. Rewilding and Hope go side by side
The next talk is by Nestor Fernandez - Mapping rewilding opportunnities in Europe. He starts by highlighting the important role of megafauna due to their cascading effects, veg regulation, sanitation services and seed dispersal
However he points out that as much of 50% of Europe is within 1.5km of transportation infrastructure, creating a landscape dominated by fragmentation
So how do we restore ecosystems? Nestor points us to this figure from the paper 'rewilding complex ecosystems' which theorises the components of landscape integrity and restoration, but currently most landscapes sit within the red zone, limited by infrastructure, HWC and risks
Nestor presented a series of dramatic maps, which seek to take this theory and map it. There are three sets of map which he provides. Trophic functional diversity, Human control and connectivity.
These maps are then knitted together to give an overall picture of landscape integrity. This approach allows us to see where opportunnities for restoration are greatest and where barriers to integrity exist through corridor mapping. Showing plenty of scope for restoration
Nestor stresses the need to take these landscape approaches and make them scalable. Proposing the use of a Rewilding score, based on the ecological integrity and and human forces in any given area.
These approaches have been used to assess unoccupied suitale habitat areas for bears and other large carnivores and herbivores in Europe. For bears they found over 37% of suitable habitat is unoccupied meaning there are major opportunities for population expansion
Nestor finishes by emphasising four key aspects needed for restoration to be achieved. 1) Pursuing ecosystem functions, 2) Ensure science based assessments, 3) Improving connectivity and coherence and 4) take similar approaches into aquatic systems
Its been an informative morning with some interesting presentation at #RewildingSymposium we'll be back later for the afternoon session
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Kicking off the afternoon session of the #RewildingSymposium is @JCSvenning talking about 'restoring the role of megafauna in European ecosystems'
He begins by highlighting that current megafauna is unusually poor. Last at this level >30 million years ago. Historically, super diverse megafauna was the norm.
He points out that most current species are 100,000 to >1m years old. Meaning they have a complex evolutionary background with the landscape and complex ecological characteristics
1/ This week we end with the future directions of conservation paper by Jozef Keulartz (2016). #rewilding has varied forms, which rather than competing, can be complementary. Read this #rewildingscience thread and join in the discussion
2/ Which historical baseline is used as a reference state is one of the central debates in #rewilding. This can depend on cultural and ecological context of where rewilding takes place….
3/ It has been argued that historic baselines are irrelevant due to current anthropogenic drivers e.g. climate change making it difficult to recreate historical ecosystems. There are two thoughts; to abandon history entirely, or to move the baseline to a more distant past
1/ An exploration into the role of megafauna, ecosystem functioning and #rewilding is the topic of #rewildingscience today. Can we learn from the Pleistocene to influence today’s world for the better?
2/ As discussed in previous threads, megafauna have been in a state of decline and extinction since the late Pleistocene. Such large animals would surely have an impact on the environment so what are the consequences of their declines on ecosystem function?
3/ Understanding not only why they went extinct but how their loss effects ecosystem functioning is important for many reasons. Arguably the most pressing of which is how their legacy has an impact on the functioning of the current biosphere
1/ #Rewildingscience with rewilding as a new framework in management by P. Jepson (2016)
-People can experience ‘ecological boredom’ and show indifference to wildlife issues⬇️
-Rewilding embraces change around current management and reinvigorates 21st century #conservation⬆️
2/ Since ~2008 the number of rewilding articles has shown a sharp incline, highlighting the growing interest in this ‘radical’ form of ecological management. This challenges existing conservation frameworks…
3/ Conservation frames are shaped by scientific technologies, media, management practices and legislative practices. This dictates how we manage the environment. Rewilding could be introduced as a new frame, opening up debate on how nature ‘management’ should be approached
Today in #rewildingscience: Avian winners & losers of rural land abandonment (Regos et al 2016)
The study found
-An overall positive effect on biodiversity ⬆️
-13 shrubland & forest bird species showed an increase ⬆️
-4 ecotone & open-habitat species showed a negative trend ⬇️
The study analysed remotely sensed data-derived maps in combination with bird census data carried out in 2000 and 2010 at both landscape and census plot scale. 2/9
They found a gradient of change from bare ground and open shrubland to closed shrubland and woodland. With closed shrubland increasing by 17% and evergreen and deciduous forest increasing by 14% and 107%. While bare ground decreased by 85% 3/9
1/ Today we take a look at the key points from Arts, Fischer, & René van der Wal (2016) examination of the relationship between rewilding and reintroductions. onlinelibrary.wiley.com/doi/10.1111/re…
Critically review the assumption that reintroductions automatically restore wild places.
by
investigating the relatedness of key concepts – ecological functioning, wilderness experience and natural autonomy in relation to a hypothetical wolf reintroduction
3/ Results
The paper determined that:
Each concept was positively impacted by a wolf reintroduction
However...
The concepts often collide rather than enforce each other