(SRCE) Corridors valleys providing connections between biodiversity reservoirs in Pays de la Loire

This table lists the different valley corridors that provide connections between reservoirs of biodiversity, offering species favourable conditions for their movement and the completion of their life cycle. (Article R. 317-19 III of the Environmental Code).The regulations allow that not all biodiversity reservoirs are necessarily connected by ecological corridors (Article R. 317-19 II of the Environmental Code). This case should be limited and mainly concern biodiversity reservoirs with regard to:a) the relevance of connecting or maintaining the natural isolation of these spaces (in particular: cases of isolation to prevent the spread of invasive alien species or potential health problems posed by wildlife carrying diseases that can be transmitted to domestic species (e.g. swine fever) or even humans (e.g. rabies); b) an issue of preservation of certain areas that constitute an ecological network in “not Japanese” for associated species (e.g.: ponds and lakes, ponds, peatlands) or some areas not connected today but that can serve tomorrow as a “relay” or a new point of the ecological mesh of the territory (faced with changes such as climate change, the evolution of the range, fires, the disappearance of reservoirs via a development project...). Origin According to the method specific to each region and the quality of delimitation (geographical or schematic), the geometry must correspond to the geometric shape of the object represented on the SRCE mapping while ensuring the rules of ecological continuity that dictate the cutting. In particular, interregionality should be managed by not dividing the object into administrative boundaries to improve the understanding of interregional ecological continuities. 24/11/2015: Amendment following the public inquiry本表格列出了各类山谷廊道，此类廊道可连通不同的生物多样性储库（biodiversity reservoirs），为物种迁移及完成生命周期提供适宜条件。该内容依据《环境法典》第R. 317-19条第三款（Article R. 317-19 III）制定。 该法规明确，并非所有生物多样性储库都必然会通过生态廊道（ecological corridors）实现连通（《环境法典》第R. 317-19条第二款）。此类情形应受到严格限定，且主要针对以下场景下的生物多样性储库： a) 连接或维持此类空间自然隔离状态的合理性场景，具体包括：为防止入侵外来物种扩散而采取的隔离情形，或是野生动物携带可传染给家畜（如猪瘟）甚至人类（如狂犬病）的疾病所引发的潜在健康风险场景； b) 需保护的特定区域：一类是为伴生物种构建"非日式"生态网络的区域（例如池塘、湖泊、塘沼、泥炭地），另一类是当前尚未连通但未来可作为区域生态网络"中继节点"或新增节点的区域（以应对气候变化、物种分布范围变迁、野火、开发项目导致的生物多样性储库消失等各类变化）。 来源说明： 根据各区域专属方法及划定质量（地理或概略式），几何形状需与SRCE地图（SRCE mapping）中所表征对象的几何形态保持一致，同时需遵循管控边界切割的生态连续性规则。尤其需遵循跨区域管理要求：不得依据行政边界拆分该对象，以提升对跨区域生态连续性的认知。 2015年11月24日：经公众咨询后完成修订