where is the above mentioned latter place situated?
It is located in Melanesia in the southwestern Pacific Ocean.
New Guinea
New Guinea (; Hiri Motu: "Niu Gini"; , historically ) is the world's second-largest island and, with an area of , the largest island wholly or partly within the Southern Hemisphere and Oceania. Located in Melanesia in the southwestern Pacific Ocean, it is separated by the wide Torres Strait from the Australian continent. 
where do you find australian green tree frog? Australia and New Guinea does it has any scientific name? Yes, "Ranoidea caerulea". is it under any threat or needs to be conserved? Yes, it is a threat in suburban areas by pollution and by predation by domestic animals. in which research is it used? UNANSWERABLE
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New Guinea [SEP] Introduction
New Guinea (; Hiri Motu: "Niu Gini"; , historically ) is the world's second-largest island and, with an area of , the largest island wholly or partly within the Southern Hemisphere and Oceania. Located in Melanesia in the southwestern Pacific Ocean, it is separated by the wide Torres Strait from the Australian continent. Numerous smaller islands are located to the west and east. The eastern half of the island is the major land mass of the independent state of Papua New Guinea. The western half, known as Western New Guinea or West Papua, forms a part of Indonesia and is organized as the provinces of Papua and West Papua.