The following is a list of UK BAP priority species and habitats recorded in Yorkshire since 1990 (reproduced from A Biodiversity Audit of Yorkshire and the Humber, see Biodiversity Audits).  

SPECIES

Mammals

water vole (Arvicola terrestris)

brown hare (Lepus europaeus)

otter (Lutra lutra)

dormouse (Muscardinus avellanarius)

pipistrelle bat (Pipistrellus pipistrellus)

red squirrel (Sciurus vulgaris)

Birds

skylark (Alauda arvensis)

bittern (Botaurus stellaris)

nightjar (Caprimulgus europaeus)

linnet (Carduelis cannabina)

corncrake (Crex crex)

reed bunting (Emberiza schoeniclus)

woodlark (Lullula arborea)

corn bunting (Miliaria calandra)

spotted flycatcher (Muscicapa striata)

tree sparrow (Passer montanus)

grey partridge (Perdix perdix)

bullfinch (Pyrrhula pyrrhula)

turtle dove (Streptopelia turtur)

black grouse (Tetrao tetrix)

song thrush (Turdus philomelos)

Amphibians

great crested newt (Triturus cristatus)

Fish

allis shad (Alosa alosa)

burbot (Lota lota)

Ants

northern wood ant (Formica lugubris)

red wood ant (Formica rufa)

shining guest ant (Formicoxenus nitidulus)

Beetles

ground beetle (Bembidion humerale)

mire pill beetle (Curimopsis nigrita)

ground beetle (Dromius sigma)

ground beetle (Panagaeus cruxmajor)

Butterflies

northern brown argus (Aricia artaxerxes)

pearl-bordered fritillary (Boloria euphrosyne)

Crustacea

white-clawed crayfish (Austropotamobius pallipes)

Flies

cranefly (Lipsothrix errans)

soldier fly (Odontomyia hydroleon)

stiletto fly (Spiriverpa lunulata)

Molluscs

freshwater pearl mussel (Margaritifera margaritifera)

fine-lined pea mussel (Pisidium tenuilineatum)

whorled snail (Vertigo geyeri)

Moths

dark bordered beauty (Epione paralellaria)

lunar yellow underwing (Noctua orbona)

argent and sable (Rheumaptera hastata)

chalk carpet (Scotopteryx bipunctaria)

sword-grass (Xylena exsoleta)

Fungi

pink wax cap (Hygrocybe calyptraeformis)

date coloured wax cap (Hygrocybe spadicea)

stalked toothed fungus (Phellodon confluens)

Lichens

orange-fruited elm-lichen (Caloplaca luteoalba)

elm gyalecta (Gyalecta ulmi)

Mosses

sausage beard-moss (Didymodon tomaculosus)

moss (Orthotrichum sprucei)

Yorkshire feather-moss (Thamnobryum cataractarum)

flamingo moss (Tortula cernua)

Freiberg's screw-moss (Tortula freibergii)

Nowell's limestone moss (Zygodon gracilis)

Plants

lady's mantle (Alchemilla minima)

prickly sedge (Carex muricata muricata)

cornflower (Centtaurea cyanus)

lady's slipper orchid (Cypripedium calceolus)

red hemp-nettle (Galeopsis angustifolia)

juniper (Juniperus communis)

floating water plantain (Luronium natans)

pillwort (Pilularia globulifera)

yellow marsh saxifrage (Saxifraga hirculus)

shepherd's needle (Scandix pecten-veneris)

greater water-parsnip (Sium latifolium)

Killarney fern (Trichomanes speciosum) 

HABITATS

upland oak woodland

upland mixed ashwoods

wet woodlands

lowland wood pastures and parkland

ancient and/ or species-rich hedgerows

cereal field margins

lowland meadows

upland hay meadows

coastal and floodplain grazing marsh

lowland calcareous grassland

upland calcareous grassland

lowland dry acidic grassland

lowland heathland

upland heathland

purple moor grass and rush pasture

fens

reedbeds

lowland raised bog

blanket bog

mesotrophic standing waters

eutrophic standing waters

chalk rivers

limestone pavements

maritime cliffs and slopes

coastal vegetated shingle

coastal saltmarsh

coastal sand dunes

mud flats

sheltered muddy gravels

sea-grass beds

saline lagoons

chalk coast

Sabellaria spinulosa reefs

horse mussel beds

sublittoral sands and gravels