What is the impact on the environment?

The province of Finistère has announced that the fire that broke out earlier this week at the foot of the Mont Saint-Michel de Brasparts chapel is now under control. In total, the burned area amounted to 1725 hectares, a huge area for Monts d’Arrée.

Now that emergency management is secured and the territory’s people, economic agents and infrastructure are safe, an initial assessment of the fire’s impact on biodiversity can be made. learn. Spread over 10,000 hectares, Monts d’Arrée’s Natura 2000 site is home to the largest group of Atlantic moors in France and the largest population of peat bogs in Brittany. According to the first observation, The fire will affect more than 15% of the area and burn about 1100 hectares of moorland and 380 hectares of wet moor and peat bogs..

Make sure to observe for iconic species but concern for natural areas

According to teams from the Parc naturel régional d’Armorique in conjunction with experts from Brittany Vivante, the blaze will not have a major impact on Monts d’Arée’s iconic birds such as the Eurasian Curlew and the Northern Harrier. – Martin and Ash: at the end of the nesting period, they are in the process of migrating or all, young or adult, can fly. More concern is with the microfauna (insects, molluscs, small mammals and birds, amphibians, reptiles) which perhaps cannot escape: this is the case with the European Nightjar nest on the ground at this time.

Fire is a natural or random phenomenon in the life cycle of moors that can help keep these natural, highly flammable spaces open. After the “run” fire burns only the upper part of the moor, the vegetation can quickly return to its original state. On the other hand, if the fire “smolders,” especially on peatlands, the peat risks releasing the carbon it stores and the seed bank present in the soil could be affected.

An assessment based on field observations and taking into account the nature of the fire (smoldering or flowing) will make it possible to make a more accurate assessment in the coming days, and especially to assess the possibility of fire. regeneration of vegetation. To this end, a working group has been formed with players in the field such as Bretagne Vivante, the Brest Botanical Museum, the Finistère Hunting Federation and the basin associations.

Maintain moors to limit fire risks and conserve biodiversity

Grazing and mowing are two traditional agricultural practices that sustain grasslands:

– ecologically, still open environments can produce significant and fragile biodiversity such as some nesting birds;

– at the agricultural level, ranchers can have more space to graze their livestock in the summer, thus freeing up pasture for hay production or post-winter rest plots;

– Regarding fire prevention, the management to limit the overdevelopment of the moors, the maintenance of fence edges and the actions of animals that create fire zones contribute to limiting the spread of fire.

This is why since the 1990s the Garden has assisted around 40 farmers in pasture management by mowing and grazing, providing advice in the field and by enabling funded by the Common Agricultural Policy (through agro-environment and climate measures – MAEC) through its climate plan and the agro-environment it brings to the territory.

For its part, the Department of Finistère, owner and manager of sensitive natural areas in Monts d’Arrée, restores and maintains moors under its contractual authority with the assistance of companies. specialized. It also offers free land to breeders as part of its shared use loans. In turn, the latter ensures the management of the entrusted plots according to precise specifications adapted to the natural environment. At the same time, producers can benefit from MAEC in these same areas. This is a win-win partnership that highlights the concerns of ecological pastoralism.

Image source: wikipedia (cc)
[cc] Breizh-info.com, 2022, free copies and distributes the topic mentions and links to the original source

Leave a Comment

Your email address will not be published.