| The Sun Moon Lake area is made up of various ecological systems including mountains, streams, and lakes. The area abounds with a particularly large array of insects and bird species. The former include numerous varieties of beetles, dragonflies, swallowtail butterflies, bees, cicadas, and fireflies. |
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Birds frequenting Sun Moon Lake include the little egret, the black-crowned night heron, the common kingfisher, the white breasted water hen, the crested serpent eagle, the Muller's barbet, the Taiwan hill partridge, and various birds of the timaliidae family, among others. Aquatic life teeming in the Sun Moon Lake area include grass shrimp, silver, mud, and common carp, the chili fish, and the locally-famous aruzay (president fish).
Vegetation in the area is dominated by low altitude evergreens, including a mixture of ancient and plantation forests as well as shoreline (hygrophyte) vegetation.

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