Why Did the Large Blue Become Extinct in Britain

  title={Why Did the Large Blue Become Extinct in Britain},
  author={J. A. Thomas},
In 1979 the Nature Conservancy Council revealed that the large blue butterfly Maculinea arion was probably extinct in Britain, despite much research and valiant efforts to save it. The author, a member of the Institute of Terrestrial Ecology, who since 1972 has been engaged full time on the research and conservation work for the butterfly, tells the story as it is now known. 
Using chemo-taxonomy of host ants to help conserve the large blue butterfly
The large blue butterfly (Phengaris arion) is an endangered Palaearctic species that was reintroduced into the British Isles after becoming extinct in 1979 and is a priority species under the UK Biodiversity Action Plan. Expand
Successful Conservation of a Threatened Maculinea Butterfly
The reversal of the decline of Maculinea arion (Large Blue), a charismatic specialist whose larvae parasitize Myrmica ant societies is described, providing a paradigm for other insect conservation projects. Expand
The challenge of conserving grassland insects at the margins of their range in Europe
Case studies of the ant Myrmica sabuleti and the butterflies Polyommatus bellargus and Thymelicus acteon are used to illustrate the mechanisms responsible for this vulnerability and the need for different management regimes to maintain species’ niches in different parts of their range. Expand
The successful conservation of an endangered species, the heath fritillary butterfly Mellicta athalia, in Britain
An evaluation of the progress made in its conservation since 1980 when it was close to extinction is presented, largely due to the discovery of 22 new colonies on Exmoor which have more than offset the butterfly's extinction on several sites. Expand
Complexity of species conservation in managed habitats: interaction betweenMaculinea butterflies and their ant hosts
It is concluded that the best way of ensuring robust populations ofMaculinea butterflies is to manage habitats to optimize the density and distribution of the required species ofMyrmica host and, secondarily, the distribution ofThe larval food plant. Expand
Habitat Losses and Conservation of Mutualisms
Examples discussed in the previous chapter help to emphasise that knowledge of mutualisms has two rather different roles in practical conservation, but in both those areas of interest, the importanceExpand
Conservation of Plant and Animal Populations in Theory and Practice
The rapid increase of human populations, together with increasing exploitation of nature per capita, has caused the recent species extinction crisis. The rate of species extinction is now orders ofExpand
The habitat preferences and phenology of a generalist butterfly species, Melanargia galathea (marbled white), at multiple spatial and temporal scales, within the British Isles
The distribution of a generalist British butterfly, Melanargia galathea, is looked at at multiple temporal and spatial scales, to provide detailed knowledge on this species’ ecology useful for its conservation under a changing climate. Expand
Population biology and conservation of the Corsican swallowtail butterfly Papilio hospiton Gene
There is no evidence that P. hospiton is experiencing a decline of its populations and hence it cannot be classified as an endangered species, as defined by the IUCN, and it is however vulnerable, because it has a restricted range and is very sensitive to land use changes. Expand
Butterfly Diversity in a Changing Scenario
For many historical and ecological reasons, Italy is characterized by extremely high biodiversity level, which we can observe in virtually all animal and plant groups. This occurs in concomitanceExpand