Table 2. Studies comparing techniques for sampling amphibians in forests and woodlands. *Denotes an unsystematic study.
Reference Location Sampling techniques Best technique
Braithwaite, 1985 Northern Territory, Australia Nocturnal searches, diurnal searches, pitfall traps Nocturnal searches
Holloway, 1997* East Victoria, Australia Nocturnal searches, diurnal searches, tadpole netting, automatic tape recorders Nocturnal searches
Parris et al., in press South-east Queensland, Australia Nocturnal searches, pitfall traps, automatic tape recorders Nocturnal searches
Denton and Beebee, 1992 South and north-west England Nocturnal searches, diurnal searches, artificial cover Nocturnal searches
Berrill et al., 1992 Southern Ontario, Canada Nocturnal searches, call surveys, automatic tape recorders Nocturnal searches
Shirose et al., 1997 Ontario, Canada Call surveys, nocturnal searches Nocturnal searches
Pearman et al., 1995 Tena, Ecuador Nocturnal searches, diurnal searches, artificial cover, artificial aquatic habitats Nocturnal searches
Campbell and Christman, 1982 Florida, USA Night driving, diurnal quadrat searches, diurnal time-constrained searches, pitfall traps Night driving
Greenburg et al., 1994 Florida, USA Pitfall traps, single-ended funnel traps, double-ended funnel traps Pitfall traps
Bury and Raphael, 1983* California, USA Pitfall traps, diurnal time-constrained searches Time-constrained searches
Mitchell et al., 1993* Virginia and South Carolina, USA Large wet pitfall traps, small dry pitfall traps, artificial cover Large wet pitfall traps
Braithwaite, 1983 Northern Territory, Australia Pitfall traps with drift fences, pitfall traps covered with metal sheeting Pitfall traps with drift fences
Friend, 1984 Northern Territory, Australia One- and two-directional pitfall traps Two-directional pitfall traps
Osborne, 1985 Canberra, Australia Pitfall traps of different depths 5 - 40 cm Traps > 30 cm deep
Vogt and Hine, 1982 Wisconsin, USA Pitfall traps with drift fences < 15 m and > 15 m Pitfall traps with drift fences > 15 m long
Bury and Corn, 1987 Oregon and Washington, USA Pitfall traps with 5 m, 2.5 m and no drift fences Pitfall traps with 5 m drift fences