The reserve's different terrain is home to numerous species. Montane, timber, and swamp ecosystems converge, hosting, alongside species from the
Persian Gulf seacoast. The reserve is home to 263 documented species, including
Hippolais languida. The area is home to various ranges of species, including the 407
mammal species, 37 creeper species, 3 amphibian species, 10 fish species, and 47 other animal species. In 2023, the
Ruddy Shelduck (Tadorna ferruginea) was selected as the flagship species of Arjan Lake. ==See also==