The Sensitive Natural Area Bois de la Bergette a rich history: From hill to the Marne, the wood of the Bergette tells us a part of the history of the valley. ENS This epitomizes the landscape and the atmosphere of the Marne valley northeast of the department. The marked relief of wooded hillside overlooking the valley floor more open, remnants of ancient cultures. Found between these two geographical ruins of an old castle. At the wooded hillside, history demonstrates past human activity. Many visible holes in the forest are related to the extraction of millstones from the 18th and 19th centuries. Activity there is, however, not reached the level of industrial wood bar, ENS located near Timber Bergette. Charcoal was produced there. Between the hill and the Marne, the ruins of the castle Bergette. The area has been inhabited since the Revolution, but at the time it is a farm that occupied the site. The construction of the railway in 1850 modifies the valley, making it more accessible. The imposing remains visible on old postcards, is built in the late 19th century. The castle overlooks a park then down to the banks of the Marne. In 1920-1930, a cooperative near the communist party, provides workers and their families from lower costs in the country. The site reached its apogee with paid leave in 1936. The property is a pleasant garden maintained by generations of gardeners. A newspaper article of Humanity in 1926 cites "two parks, plenty lined chestnut, poplar, linden, pine trees and other rare ...". There are still nowadays various ornamental species mixed with wild nature. The area sees his fate switch during the Second World War during which the main building was looted and destroyed. Later, the banks of the Marne area is separated from the property and cultivated until recently.
Planning and Management: Linking varied natural environments: The changing topography and variety of natural environments on which man has left many marks (ruins, road, rail) make the discovery of the site in both rich and delicate. The development completed in 2011 by the Department can connect the edges of the Marne wooded hillside via a network of trails suitable ecological characteristics at ENS. The most interesting natural areas are located on the wooded hillside, notably with the presence of remarkable beetles living in dead wood or nesting raptors (buzzard and sparrowhawk). This is why the wooded hillside has been little work to make the discreet presence of man. Ruins, too unstable to be approached by the public, were completed in their entirety and developed from a side path. Only roost cavities where bats have been secured to prevent vandalism while improving the capacity of these animals. The bottom of the valley has a fauna and flora less rich but development has improved the ecological potential of the area. Side track, a field was planted and fenced to be grazed. Tree plantations and country hedges are intended to enjoy the atmosphere wooded visible on old postcards. The river Marne, meanwhile, will expand naturally. An orchard consisting of 5 varieties of pear was planted in 2012 on the large meadow with the support of the Association Crunchers Apples and school children of Limon La Ferte-sous-Jouarre. Old varieties chosen represent a genetic heritage and rural preserve. Beyond the orchards have a real interest in biodiversity because, with age, they are home to many plant and animal species.
Biodiversity: Bats: Mal known or unloved, bats are fascinating animals and yet useful. With six different species identified in 2010, ENS Timber Bergette presents a certain interest for bats. The site has indeed hunting areas and / or various lodges favored by these small mammals. We can classify the species of bats identified in the ENS into three categories: species usually living in the vicinity of urban areas: the Common Pipistrelle and Serotine common. Forest species rather: the common and Noctule Noctule of Leisler. Species restricted to aquatic environments including Daubenton Murin. The plot Murin (Myotis mystacinus-Kuhl, 1817) has also been identified on the site. This small Bloodwing a scale ranging from 19 to 22.5 cm and a weight of 4 to 8 ga hibernation and was spotted in flight, using ultrasound it emits. The life cycle Murin plot is similar to that of other species of insectivorous bats in Europe. Its annual cycle consists of two major contrasting periods that will punctuate his life. In winter, the absence of prey forces it to go dormant waiting for the return of spring in cold and damp cellars. From spring to autumn, Murin plot is active: it changes cottage or even browsing geographic area up to several tens of kilometers. He then settled in the disjunct species of buildings, bridges or in the cavities of old trunks. The plot Murin feeds on flying insects (mosquitoes, crane flies, commonly called "cousins" and butterflies). His hunting territory is very varied, ranging from urban to afforestation through parks and gardens. The ENS offers a multitude of areas to explore for this species: the former grounds of the castle, many forest edges, the Marne, the edge of the track, the ruins and houses. Of endangered animals: One of the main threats is the disappearance of their houses, especially those used for breeding, including in our homes. Summer and winter, occupied sites must be free from any inconvenience. Bats are very shy. In summer, they may leaving their house, to abandon their young of the year putting all the breeding colony at risk. In winter, visit cavities harboring bats lethargy can wake up the animals and trigger overconsumption of calories that can be fatal ...
