Aichi 1 Akaike information criterion 1 Amphibia 1 Amphibians’ oviposition 1 Bufo japonicus 1 Chubu 1 Ecological gradient Generalized linear models 1 Habitat suitability 1 Honshu 1 Japan 1 Japonica 1 Okazaki 1 Rana japonica 1 Rana ornativentris 1 Species protection 1 Toyota 1 abandoned land 1 environmental degradation 1 environmental stress 1 frog 1 habitat fragmentation 1 habitat loss 1 land management 1 land use change 1 landscape ecology 1 mountain region 1 oviposition 1 population decline 1 urban area 1