habitat_narrative
Freshwater (=Inland waters)|Terrestrial
It is a water-dependent species occurring in a very wide range of habitats, including heavily modified anthropogenic habitats. It lives in all sorts of waterbodies, including streams, but tends to avoid large rivers, and waterbodies with predatory fish. It reaches its highest densities in eutrophic water. It breeds in water; there are no records of it breeding in flowing water. It has very high reproductive potential. It is a highly opportunistic species, and colonizes newly recreated, apparently isolated, waterbodies with ease. It can migrate in large numbers when breeding ponds start to dry up, and the weather is wet.