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Diversity of fauna in the area of Alas Purwo National Park generally can be divided into four classes of Mammals, Aves, Pisces, and Reptiles. Mammals recorded for 31 species, among which : Wild Banteng (Bos javanicus), Deer (Cervus timorensis), Ajag (Cuon alpinus), Wild Boar (Sus scrofa), Barking Deer (Muntiacus muncak), Leopard (Panthera pardus), Monkey (Trachypithecus auratus), Gray Monkey (Macaca fascicularis), and Monitor Lizard (Varanus salvator). Birds that have been identified consisting of 236 species of land birds and water birds, some of whom are migrant birds that have been identified are 39 types. Conspicuous bird species include : Forest Chicken (Gallus gallus), Kangkareng (Antracoceros coronatus ), Rangkok (Buceros undulatus), Peacock (Pavo muticus) and Java Kingfisher (Halcyon cyanoventris). As for reptiles of 20 species have been identified.
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There are approximately 16 species of Australian migratory birds that can be seen at Segoro Anakan in the period of October - Desember including the Cekakak Suci (Halcyonchloris /Todiramphus sanctus), Kirik-kirik Laut (Merops philippinus), Trinil Pantai (Actitis hypoleucos ), and Trinil Semak (Tringa glareola).
Kebatinan (traditional Javanese mystical belief), followed by communities in Central and East Java, centres on inner and outer spirituality, and the connection between the natural and supernatural worlds. As its Javanese name suggest, Alas Purwo is the place where, according to Javanese mysticism, the earth first emerged from the ocean.
Followers of Javanese mysticism also believe that spirits inhabit trees, rocks, rivers, and springs. And those well versed in Ilmu Jawa, or Javanese mysticism, are said to have the ability take on the form of wild animals. So for followers of Javanese mysticism, Alas Purwo's rich flora and fauna also makes it a highly revered place.In Javanese mysticism, there is a fine line between the natural world and the parallel dimension of spirits.
Declared by Minister of Forestry No. 190/Kpts-II/1993, February 26, 1993.
Declared by Minister of Forestry No. 190/Kpts-II/1993, February 26, 1993.