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A few Arctic-Alpine species have subspecies in the British Isles, some have been in the islands since the last Ice Age, but many spread in the immediate Sub-Arctic conditions as the ice retreated. Furthermore, these species were later reinforced by newer arrivals as the climate assumed temperatures and conditions more similar to the present day.
The list comprises butterfly species listed in The Moths and Butterflies of Great Britain and Ireland by Emmet et al. [1] and Britain's Butterflies by Tomlinson and Still. [2] A study by NERC in 2004 found there has been a species decline of 71% of butterfly species between 1983 and 2003. [3]
a species that colonised the islands during the glacial retreat at the end of the last ice age (c. 9500 years ago); a species that was present when the English Channel was created (c. 8000 years ago); or, a species that was present in prehistory. This list includes mammals from the small islands around Great Britain and the Channel Islands.
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Some suffer because of loss of habitat, but many are in decline following the introduction of foreign species, which out-compete the native species or carry disease. See also the list of extinct animals of the British Isles. This list includes the 116 species identified as requiring action plans in the Biodiversity Steering Group's report of ...
Bird species admitted to the British List are those in BOU categories A, B or C: A: species that have been recorded in an apparently natural state at least once since 1 January 1950. B: species that were recorded in an apparently natural state at least once between 1 January 1800 and 31 December 1949, but have not been recorded subsequently.
The mild winters mean that many species that cannot cope with harsher conditions can winter in Britain, and also that there is a large influx of wintering birds from the European continent and beyond. There are about 250 species regularly recorded in Great Britain, and another 350 that occur with varying degrees of rarity.
Fauna of the British Isles; Subcategories. This category has the following 5 subcategories, out of 5 total. . Lists of animals of the British Isles (1 C ...