Garden ponds provide critical habitat for frogs, newts, dragonflies, and other freshwater species in increasingly habitat-poor urban landscapes.
Garden ponds provide welfare benefits for amphibians at a population level by providing breeding habitat in fragmented urban landscapes. Individual welfare considerations include safe pond design that prevents entrapment (especially for hedgehogs), avoiding use of fish that predate amphibian eggs and larvae, maintaining clean water without excessive algal growth, and not introducing non-native species. Releasing tadpoles raised in captivity requires timing to match natural conditions. Introducing common frog spawn from elsewhere is now discouraged due to disease transmission risk. Ponds without easy-escape slopes cause hedgehog and mammal drowning. Overuse of chemicals in surrounding gardens reduces the invertebrate communities ponds support.