they provide habitats for plants and animals that need permanent water – including fish like the arctic charr, range of water plants, such as Long-stalked Pondweed, and the highly endangered Glutinous Snail. Lakes are important for a variety of waterbirds: naturally nutrient rich lakes in the lowlands can be important breeding and wintering grounds for waterfowl. In Scotland, lakes may support breeding Red-throated and Black-throated Divers.