Rodney Stoke is a 69.6 hectare

Hectare

The hectare is a metric unit of area defined as 10,000 square metres , and primarily used in the measurement of land. In 1795, when the metric system was introduced, the are was defined as being 100 square metres and the hectare was thus 100 ares or 1/100 km2...

 (172.0 acre) biological Site of Special Scientific Interest, just north of the village of Rodney Stoke

Rodney Stoke

Rodney Stoke is a small village and civil parish, located at , 5 miles north-west of Wells, in the English county of Somerset. The village is on the A371 between Draycott and Westbury-sub-Mendip....

 in the Mendip Hills

Mendip Hills

The Mendip Hills is a range of limestone hills to the south of Bristol and Bath in Somerset, England. Running east to west between Weston-super-Mare and Frome, the hills overlook the Somerset Levels to the south and the Avon Valley to the north...

, Somerset

Somerset

The ceremonial and non-metropolitan county of Somerset in South West England borders Bristol and Gloucestershire to the north, Wiltshire to the east, Dorset to the south-east, and Devon to the south-west. It is partly bounded to the north and west by the Bristol Channel and the estuary of the...

, notified in 1957.

Part of the site is a National Nature Reserve

National Nature Reserve

For details of National nature reserves in the United Kingdom see:*National Nature Reserves in England*National Nature Reserves in Northern Ireland*National Nature Reserves in Scotland*National Nature Reserves in Wales...

 and part a Nature Conservation Review Woodland site. This site supports a mosaic of ancient semi-natural broadleaved woodland, scrub and species-rich unimproved grassland. Rodney Stoke occupies steep south west facing slopes of the Mendip Hills. The underlying rock types belong to the Dolomitic Conglomerate

Conglomerate (geology)

A conglomerate is a rock consisting of individual clasts within a finer-grained matrix that have become cemented together. Conglomerates are sedimentary rocks consisting of rounded fragments and are thus differentiated from breccias, which consist of angular clasts...

 facies of the Triassic

Triassic

The Triassic is a geologic period and system that extends from about 250 to 200 Mya . As the first period of the Mesozoic Era, the Triassic follows the Permian and is followed by the Jurassic. Both the start and end of the Triassic are marked by major extinction events...

, and to the Carboniferous Limestone

Carboniferous limestone

Carboniferous Limestone is a term used to describe a variety of different types of limestone occurring widely across Great Britain and Ireland which were deposited during the Dinantian epoch of the Carboniferous period. They were formed between 363 and 325 million years ago...

 series. The latter are restricted to the woodlands Big Stoke and Little Stoke, which along with Calve's Plot Wood are ancient woodland

Ancient woodland

Ancient woodland is a term used in the United Kingdom to refer specifically to woodland that has existed continuously since 1600 or before in England and Wales . Before those dates, planting of new woodland was uncommon, so a wood present in 1600 was likely to have developed naturally...

 sites. Big Stoke and Little Stoke were almost entirely clear-felled during World War I

World War I

World War I , which was predominantly called the World War or the Great War from its occurrence until 1939, and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918...

. Two nationally rare plants occur at Rodney Stoke: Purple Gromwell (Lithospermum purpurocaeruleum) and the endemic Whitebeam

Whitebeam

The whitebeams are members of the Rosaceae family, comprising subgenus Aria of genus Sorbus, and hybrids involving species of this subgenus and members of subgenera Sorbus, Torminaria and Chamaemespilus. They are deciduous trees with simple or lobed leaves, arranged alternately...

 (Sorbus anglica). The site supports a diverse fauna. Badger

Badger

Badgers are short-legged omnivores in the weasel family, Mustelidae. There are nine species of badger, in three subfamilies : Melinae , Mellivorinae , and Taxideinae...

s (Meles meles) are common and two or three setts are occupied each year. Noctule bats

Nyctalus

The bat genus Nyctalus are members of the family Vespertilionidae or sometimes Evening bats. They are distributed in the temperate and subtropical areas of Europe, Asia and North Africa.There are eight species within this genus:...

 (Nyctalus noctula) and Pipistrelle bats

Pipistrellus

Pipistrellus is a genus of bats in the family Vespertilionidae and subfamily Vespertilioninae. The name of the genus is derived from the Italian word Pipistrello, meaning "bat"....

 (Pipistrellus pipistrellus) roost in Big Stoke. Breeding birds include Buzzard

Buzzard

A buzzard is one of several large birds, but there are a number of meanings as detailed below.-Old World:In the Old World Buzzard can mean:* One of several medium-sized, wide-ranging raptors with a robust body and broad wings....

 (Buteo buteo) and Spotted Flycatcher

Spotted Flycatcher

The Spotted Flycatcher, Muscicapa striata, is a small passerine bird in the Old World flycatcher family. It breeds in most of Europe and western Asia, and is migratory, wintering in Africa and south western Asia. It is declining in parts of its range....

 (Muscicapa striata). Small enclosures and tall hedges provide sheltered conditions that are ideal for many species of invertebrate

Invertebrate

An invertebrate is an animal without a backbone. The group includes 97% of all animal species – all animals except those in the chordate subphylum Vertebrata .Invertebrates form a paraphyletic group...

. Butterflies

Butterfly

A butterfly is a mainly day-flying insect of the order Lepidoptera, which includes the butterflies and moths. Like other holometabolous insects, the butterfly's life cycle consists of four parts: egg, larva, pupa and adult. Most species are diurnal. Butterflies have large, often brightly coloured...

 are well represented with Marbled White (Melanargia galathea), Purple Hairstreak

Purple Hairstreak

The Purple Hairstreak Neozephyrus quercus is a butterfly in the family Lycaenidae distributed throughout much of Europe. North Africa, Asia Minor, Caucasus and Transcaucasia....

 (Quercusia quercus), Brown Argus

Brown Argus

The Brown Argus is a butterfly in the family Lycaenidae.-Appearance, behaviour and distribution:Although one of the "Blues" both sexes are brown on the uppersides with a band of orange spots at the border of each wing...

 (Aricia agestis) and Grayling

Grayling (butterfly)

The Grayling is a species in the brush-footed butterfly family Nymphalidae. It sometimes occurs in coastal areas of northeast Scotland such as the Fowlsheugh Nature Reserve. It can also be found near the coast around England, such as Fire Beacon Hill...

(Hipparchia semele).