Moths Rothamsted moth survey (1968-) 80 Consistent, Non-random Light trap countryside butterfly survey (2007-) 750 Consistent, Random Transect Butterflies UK butterfly monitoring scheme (1976-) 1000 Consistent, Non- random Transect National Dormouse Survey (1993-) 300 Consistent, Known sites Nest box search Breeding bird survey (1995-) 2400 Consistent, Random Transect Mammals Various, field/ National Bat monitoring scheme (1997-) 1300 Consistent, Random roost counts Mammals on (2001-) 500 Consistent, Random Transect Breeding bird survey (1995-) 3200 Consistent, Random Transect Territory Common bird census (1970-2000) 300 Consistent, Non-random mapping Seabird monitoring programme, (1986 -) Species Consistent, Non-random or Colony counts seabird censuses (1969 ,85,00) specific Consistent, Non-random Birds Wetland bird survey (1970-) 3000 (or almost total for some Site counts species) Site counts and Species Some variation over time, Rare birds breeding panel (1970-) individual specific all or most known sites records Consistent, stratified Species Various, SCARABBS (1974-) random, bespoke for specific transects species
Moths Rothamsted moth survey (1968-) 80 Consistent, Non-random Light trap Butterflies countryside butterfly survey (2007-) 750 Consistent, Random Transect UK butterfly monitoring scheme (1976-) 1000 Consistent, Non- random Transect Mammals National Dormouse Survey (1993-) 300 Consistent, Known sites Nest box search Breeding bird survey (1995-) 2400 Consistent, Random Transect National Bat monitoring scheme (1997-) 1300 Consistent, Random Various, field/ roost counts Mammals on (2001-) 500 Consistent, Random Transect Birds Breeding bird survey (1995-) 3200 Consistent, Random Transect Common bird census (1970-2000) 300 Consistent, Non-random Territory mapping Seabird monitoring programme, (1986 -) seabird censuses (1969 ,85,00) Species specific Consistent, Non-random or Colony counts Wetland bird survey (1970-) 3000 Consistent, Non-random (or almost total for some species) Site counts Rare birds breeding panel (1970-) Species specific Some variation over time, all or most known sites Site counts and individual records SCARABBS (1974-) Species specific Consistent, stratified random, bespoke for species Various, transects