Penelitian tentang analisis ekologi relung amfibi belum pernah dilakukan di Indonesia. Secara umum genus Fejervarya memiliki dua spesies yaitu Fejervarya cancrivora dan Fejervarya limnocharis. Di habitatnya, kedua spesies ini ditemukan tumpang tindih. Pengamatan dilakukan pada rentang waktu aktif amfibi dalam mencari makan yaitu dari pukul 18:00 sampai dengan pukul 06:00 pagi. Penelitian ini bertujuan untuk mengetahui pola kehadiran katak simpatik Fejervarya berdasarkan waktu aktif makan. Hasil penelitian menunjukkan keberadaan katak yang paling banyak terjadi pada pukul 03:00 pagi. Keberadaan Fejervarya cancrivora lebih dominan dibandingkan jenis Fejervarya limnocharis.

Education during the pandemic experiences many obstacles that hinder all learning processes. Learning in ecology courses, in particular, has problems because it has one of the activities students have to go to the environment to make observations. The environment referred to here is the Brantas River. Brantas River is the largest river in East Java. However, the river is polluted due to human activities around the river. This phenomenon is intended to be presented as a lesson material for students to be able to improve environmental attitudes. Augmented reality assistance is useful for moving the environment that will be the subject of student observation during virtual learning.