Food Habits of the Adult Japanese Newt Cynops pyrrhogaster (Amphibia: Salamandridae) in the Sub-Alpine Yachidaira High Moor, East—Central Honshu, Japan

摘要: Abstract: The diet of the adult Cynops pyrrhogaster was studied at a small pond on Yachidaira high moor (1500 m asl) from 2002 to 2004. In total, 160 individuals examined by stomach flushing yielded 1518 prey items, which most (95.7% total numerically) were arthropods inhabiting or surrounding land. Of these, chironomid larvae and Cladocera numerically represented 34.3% 34.7%, respectively. By mass, Rhacophorus arboreus tadpoles, Odonata adults, Brachycera conspecific newt eggs comprised 13.7%, 11.5%, 10.7%, 9.8% all prey, composition items varied seasonally annually. These results suggest that food habits C. in alpine areas are influenced yearly seasonal changes various animals around ponds.