Ecological Conservation Programs & Field Operations

1. Action Framework: The Living River Corridor

The Avre river is the ecological spine of our territory. Over decades of industrial agriculture and suburban infrastructure expansion, many natural links connecting the river to surrounding forests were severed. Our field programs operate on a landscape scale, systematically repairing these biological arteries.

We do not conduct theoretical exercises. Every initiative listed below is a living, continuous field program supported by certified wildlife technicians, volunteer naturalists, and local partner farmers who donate land easements for ecological restoration.

2. Program Alpha: Riparian Corridor Rehabilitation

Geographic Scope: 28.4 km along the main Avre riverbank, traversing Dampierre-sur-Avre, Nonancourt, and surrounding municipal sections.
Annual Target: 6,000+ native saplings planted; 4 natural bio-retention flood basins maintained.
Direct Public Benefit: Soil erosion prevention, reduced agricultural sediment runoff, flood buffering, and shaded aquatic thermal sanctuaries.

Riverbanks deprived of vegetative cover quickly collapse under torrential rainfall, silting up spawning gravel beds required by native brown trout and lampreys. Our teams deploy bio-engineering techniques—such as live willow fascines, coir geotextile logs, and root-anchored brushwood mattresses—to stabilize steep embankments without resorting to unsightly, ecologically sterile concrete riprap.

Once stabilized, banks are planted with a botanical mix of common alder (Alnus glutinosa), grey willow (Salix cinerea), and guelder rose (Viburnum opulus). Within three growing seasons, these trees form an arching canopy that shades the water column, preventing lethal temperature spikes during summer heatwaves and creating dense root complexes where young fry can shelter from aquatic predators.

3. Program Beta: Bocage Reconnection & Agricultural Windbreaks

Geographic Scope: Agricultural plateaus bordering the Avre valley basin.
Annual Target: 3.5 to 5 km of multi-tier hedgerows established per planting season.
Direct Public Benefit: Farmland topsoil retention, natural pollinator corridors, carbon sequestration, and windbreak protection for crops.

In intensive arable zones, wildlife is forced into narrow, disconnected margins. Through our Bocage Reconnection initiative, our association enters into voluntary non-monetized land management conventions with local cereal and livestock farmers. The association provides indigenous saplings, biodegradable mulch film, and volunteer planting crews; the landowner commits to maintaining the hedgerow without chemical desiccants or destructive mid-season flailing.

These hedgerows comprise three distinct tiers: a shrub layer (blackthorn, dogwood, hawthorn), a middle arborescent layer (hazel, field maple, hornbeam), and an emergent high canopy (pedunculate oak, wild cherry). This complex vertical structure hosts hundreds of species of beneficial predator insects—such as hoverflies, lacewings, and ground beetles—which naturally suppress crop pests, reducing the need for chemical insecticide applications on adjoining fields.

4. Program Gamma: Scientific Telemetry & Population Censuses

Geographic Scope: 14,800 hectares divided into four biometric census sectors.
Infrastructure: 42 autonomous infrared camera traps, 12 acoustic ultrasonic bat detectors, and 8 night transect lines.
Direct Public Benefit: Prevention of agricultural crop depredation, monitoring of endangered species, and containment of wildlife diseases.

Management without measurement is mere guesswork. To provide objective, statistically verified data to municipal authorities and the Departmental Directorate of Territories (DDT), our scientific committee executes rigorous annual population monitoring protocols.

Our methods combine non-invasive camera trap arrays using random encounter models (REM), nocturnal thermal distance sampling, and standardized spring pellet counts. By tracking reproductive indices, antler development, and age-class distributions, we can accurately determine whether a local population of roe deer or wild boar is stable, expanding, or declining. This allows us to advise authorities on precisely calibrated wildlife quotas that protect delicate young forestry shoots while preventing destructive road collisions along departmental highways.

5. Program Delta: Wetland Hydrology & Bio-Retention Basins

Geographic Scope: Valley floor floodplains and historical water meadows.
Active Installations: 7 bio-retention wetlands, 15 amphibian breeding ponds, and 3 fish bypass ladders.
Direct Public Benefit: Natural flood mitigation, nitrate bio-filtration, and preservation of rare amphibian species.

Before modern drainage canals were excavated, the Avre valley naturally functioned as a massive alluvial sponge that absorbed winter rainfall and released it gradually through summer droughts. Our wetland restoration program actively re-establishes this natural hydraulic buffering.

By gently re-contouring low-lying pasture margins and installing adjustable timber weir sluices, we recreate shallow, temporary flood meadows that retain storm surges. These shallow waters warm quickly under the spring sun, creating ideal breeding sanctuaries for amphibians including the agile frog (Rana dalmatina), the palmate newt (Lissotriton helveticus), and the endangered great crested newt (Triturus cristatus). Furthermore, the dense network of wetland sedges and watercress absorbs dissolved nitrates, purifying the water before it flows downstream toward regional drinking water catchment points.

6. Field Operations Log & Participant Metrics

Below is the verified summary of field operations conducted across our territorial jurisdiction during the most recent operational year: