Core calling periods of the frogs of temperate New South Wales, Australia

We used records of calling male frogs to quantitatively assess the calling patterns of the frogs found in mesic, eastern New South Wales, Australia. We obtained 17,461 calling records for 67 species and determined the core calling months for 46 species. Forty-three species have clearly defined core calling periods in which > 90% of calling records fall, all of which are based around the warmer spring-summer months. We consider two species to be essentially year-round callers. Increasing latitude usually, but not always, leads to a small reduction in the core calling period. This information can be used to better target the timing of surveys, improving opportunities for research, management, and conservation.