The relative effects of woodland management and pheasant Phasianus colchicus predation on the survival of the pearl-bordered and small pearl-bordered fritillaries Boloria euphrosyne and B. selene in the south of England
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Published source details
Clarke S.A. & Robertson P.A. (1993) The relative effects of woodland management and pheasant Phasianus colchicus predation on the survival of the pearl-bordered and small pearl-bordered fritillaries Boloria euphrosyne and B. selene in the south of England. Biological Conservation, 65, 199-203.
Published source details Clarke S.A. & Robertson P.A. (1993) The relative effects of woodland management and pheasant Phasianus colchicus predation on the survival of the pearl-bordered and small pearl-bordered fritillaries Boloria euphrosyne and B. selene in the south of England. Biological Conservation, 65, 199-203.
Actions
This study is summarised as evidence for the following.
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Create young plantations within mature woodland Action Link |
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Coppice woodland Action Link |
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Create young plantations within mature woodland
A replicated, site comparison study in 1990–1991 in 52 woods in southern England, UK (Clarke & Robertson 1993) found that populations of pearl-bordered fritillary Boloria euphrosyne and small pearl-bordered fritillary Boloria selene were more likely to persist for up to 20 years in woodland containing more young plantations or actively coppiced areas. Woodlands with larger areas of young plantations or active coppicing were more likely to have retained populations of either fritillary species than woodlands with larger areas of mature conifer (data presented as model results). For pearl-bordered fritillary, woodlands with larger areas of young plantations were more likely to have retained populations than woodlands with larger areas of mature conifer wood or mature deciduous wood. Butterfly records from six data sources were used to identify 52 woods which had contained fritillary populations since 1970. The area of four habitat types was mapped in each wood: young plantation on a previously wooded site, established coppice cut within the last four years, mature deciduous woodland and mature conifers. In 1990–1991, all but one of the woods were visited to record whether fritillary populations were still present.
(Summarised by: Andrew Bladon)
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Coppice woodland
A replicated, site comparison study in 1990–1991 in 52 woods in southern England, UK (Clarke & Robertson 1993) found that populations of pearl-bordered fritillary Boloria euphrosyne and small pearl-bordered fritillary Boloria selene were more likely to persist for up to 20 years in woodland containing more actively coppiced areas or young plantations. Woodlands with larger areas of active coppicing or young plantations were more likely to have retained populations of either fritillary species than woodlands with larger areas of mature conifer (data presented as model results). Butterfly records from six data sources were used to identify 52 woods which had contained fritillary populations since 1970. The area of four habitat types was mapped in each wood: established coppice cut within the last four years, young plantation on a previously wooded site, mature deciduous woodland and mature conifers. In 1990–1991, all but one of the woods were visited to record whether fritillary populations were still present.
(Summarised by: Andrew Bladon)
