There are many benefits of garden ponds for both people and the environment. Freshwater habitats of all kinds are currently experiencing a great decline through direct destruction, pollution and alteration. From the stand point of conservation , building a pond is immensely useful and beneficial.
Small ponds are incredibly useful to a wide variety of wildlife, including insects, spiders, crustaceans, amphibians, reptiles, fish, birds and mammals. Even very small ponds, such as those no more than a metre squared can still provide considerable value to many small animals. Many amphibian species have shown dramatic declines around the world in the past several decades. Providing your local pond dwelling species of amphibians with a pond full of clean water for breeding sites and as a home, is one way to truly help make a difference for local wildlife.