Habitat restoration and a successful reintroduction of the endangered Baton Blue butterfly (Pseudophilotes baton schiffermuelleri) in SE Finland
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Published source details
Marttila O., Saarinen K. & Jantunen J. (1997) Habitat restoration and a successful reintroduction of the endangered Baton Blue butterfly (Pseudophilotes baton schiffermuelleri) in SE Finland. Annales Zoologici Fennici, 34, 177-185.
Published source details Marttila O., Saarinen K. & Jantunen J. (1997) Habitat restoration and a successful reintroduction of the endangered Baton Blue butterfly (Pseudophilotes baton schiffermuelleri) in SE Finland. Annales Zoologici Fennici, 34, 177-185.
Actions
This study is summarised as evidence for the following.
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Clear or open patches in forests Action Link |
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Translocate to re-establish populations in known or believed former range Action Link |
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Clear or open patches in forests
A study in 1992–1996 in a forest in Ruokolahti, Finland (Marttila et al. 1997) reported that, in an area with selected clearance of Scots pine Pinus sylvestris, a translocated population of baton blue Pseudophilotes baton schiffermuelleri butterflies increased in size and survived for at least two years. One year after a population of 10 baton blue females were released, 24 butterflies were captured, and two years after release, 46 butterflies were captured. The 230 x 70-m Scots pine-covered site in Ruokolahti was divided into 10-m2 study plots. In 1992, pines were selectively logged, and in 1996 some additional saplings were removed. In Säkylänharju, in June 1994, ten female baton blues were captured and marked before being translocated 315 km east to Ruokolahti where they were released into different 10-m2 plots. In June 1995 and June and July 1996, surveys were conducted twice/day along the longitudinal boundaries of all plots, during which butterflies were captured, marked and released, and egg-laying and mating sightings were recorded.
(Summarised by: Eleanor Bladon)
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Translocate to re-establish populations in known or believed former range
A study in 1992–1996 in a forest in Ruokolahti, Finland (Marttila et al. 1997) reported that a translocated population of baton blue Pseudophilotes baton schiffermuelleri butterflies (released into a site where areas of Scots pine Pinus sylvestris had also been selectively felled two years earlier) increased in size and survived for at least two years. One year after a population of 10 baton blue females were released, 24 butterflies were captured, and two years after release, 46 butterflies were captured. The 230 x 70-m Scots pine-covered site in Ruokolahti was divided into 10-m2 study plots. In 1992, pines were selectively logged, and in 1996 some additional saplings were removed. In Säkylänharju, in June 1994, ten female baton blues were captured and marked before being translocated 315 km east to Ruokolahti where they were released into different 10-m2 plots. In June 1995 and June and July 1996, surveys were conducted twice/day along the longitudinal boundaries of all plots, during which butterflies were captured, marked and released, and egg-laying and mating sightings were recorded.
(Summarised by: Eleanor Bladon)
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