Papua New Guinea (PNG) is recognized for its remarkable biodiversity, especially in amphibians. The country is home to over 400 documented frog species, the majority of which are endemic. Frogs serve as vital components of rainforest ecosystems, functioning as both predators and prey, contributing to nutrient cycling, and acting as bioindicators due to their sensitivity to environmental changes such as temperature, humidity, and water quality. Despite their ecological importance, the patterns of frog diversity and community composition across elevation gradients in PNG remain poorly understood.

This research aims to investigate how frog species richness and community structure vary along an elevational transect on the Huon Peninsula in Morobe Province. The study will cover elevations ranging from 200 meters to 3,700 meters above sea level. At eight sites positioned at 500-meter intervals, standard ecological field methods will be employed, including visual encounter surveys, acoustic monitoring with Bioacoustic Recorders (BARs), and microhabitat assessments. In addition, the study will analyze habitat variables such vegetation types, temperature, and humidity. Frogs will also be swabbed to test for chytrid fungus—a major global threat to amphibian populations.

The data gathered will allow for the analysis of species richness and turnover (alpha and beta diversity) across elevations, revealing how environmental factors influence frog distributions. The research also seeks to identify species that are especially vulnerable to climate change, habitat degradation, and disease. These insights will be critical for informing conservation strategies, particularly in montane regions where environmental pressures are intensifying.

The study is conducted by Clifford Peter Yaee, an MPhil candidate at the Papua New Guinea University of Technology, in collaboration with the New Guinea Binatang Research Center, with funding provided by Synchronicity Earth. This project directly supports national and international biodiversity conservation goals by generating much-needed ecological data on frog diversity.