Biodiversity and ecosystem services

Biodiversity is a hot topic in our societies where landscape issues deals with its preservation at different scales. Ecosystem services contribute directly here to the attractiveness of cultural landscapes. SAVE Foundation, for example, strive to halt and reverse the trend of genetic erosion of agrobiodiversity, the biodiversity in agriculture. In times of climate change the living conservation of agricultural biodiversity is essential, since their broad genetic spectrum allows adaptation to changing environment. Preserve agrobiodiversity in Europe through local breeds and varieties are well adapted to their environment and need little or no nutrition supplements appears to be relevant hence their ecological footprint is generally better than in the modern high-yielding breeds and varieties.

BERAS promote a genuine ecological alternative for a good environmental status of the Baltic Sea, and establish ecological recycling  agriculture (ERA farms) in intensive agricultural areas and thereby reduce input of nutrients and pesticides to the Baltic Sea.

Within HERCULES project, links between biodiversity index and landscape features were studied. A biodiversity plot index was established on questionnaires developed for each landscape structure. The resulting index was correlated with a range of flora and fauna inventories (insects, including dragonflies and moths, amphibians, and birds). The results show no significant correlation between the value of the index on different plots and flora and fauna richness, but appear to show correlation between the diversity of landscape structures and flora richness. Functional biodiversity studies demonstrate  that landscape features are of ecological interest when they represent all together at least 20% of the surface and landscape complexity is recognized when they reach minimum 30% of the surface.Our new  Landscape Ecological Diagnostic aims to be a valuation model that could assess biodiversity on cultural landscapes, with an “eco-anthropological” approach using the functions of landscape structures, to qualify site biodiversity load and serve sustainable land use management.

Mercier_photo10
Coenagrion mercurial in Grand Parc Miribel Jonage, photo Dimitri Mercier

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