Duckdata is a bibliographical database of North American waterfowl Anatidae and their wetlands habitats.水禽数据库是有关北美水禽和它们的湿地栖息地的书目数据库.Facies of species are often connected with extreme or disturbed habitats.植物种的群常与严酷或干扰的生境...
Protection of sites, habitats and landscapes is of uppermost priority.保护遗址、栖息地和风景区是重中之重。Plants, like animals, often have restricted habitats.植物和动物一样，生活环境常常有限。Facies of species are often connected with extreme or disturbe...