Central Research Questions
This project is led by Karl-Olof Bergman. Its objectives are to investigate the specific habitat requirements of Lopinga achine, particularly its reliance on calcareous environments and host plants; to track population trends and distribution changes over time; and to develop and recommend conservation measures to protect and sustain butterfly populations.
Background and Aims
This project focuses on studying the trends and distribution of the L. achine butterfly, commonly known as the Woodland Brown or Dårgräsfjäril in Swedish, which is classified as Near Threatened (NT). The research aims to understand the habitat preferences, population dynamics, and conservation needs of this species in Sweden. Key features studied include habitat preferences, focusing on calcareous environments with host plants such as Carex montana. The project also studies population dynamics, assessing the size, distribution, and movement patterns of populations, as well as threats and conservation, identifying threats like habitat loss and recommending conservation actions. This research highlights the importance of specific habitat conditions for the survival of L. achine and provides valuable insights for developing targeted conservation strategies to protect this near-threatened butterfly species.
Methods
Extensive field surveys are conducted to collect data on butterfly populations and habitat conditions. Mark-recapture techniques are used to study movement and population structure. Data are analyzed to determine trends in population size and distribution, and to identify key habitat features.
Preliminary findings
Stable yet limited distribution: the butterfly is strongly associated with calcareous habitats in Sweden, with stable populations in certain areas.
Threats identified: main threats include habitat loss due to forestry practices and overgrowth of habitats. Conservation needs: effective management practices such as controlled grazing and habitat restoration are critical for sustaining populations.
Conservation implications
Habitat management: recommendations include maintaining and restoring suitable habitats through controlled grazing and preventing overgrowth.
Monitoring and protection: continuous monitoring and protective measures are essential to prevent further decline.
Public engagement: engaging local communities and landowners in conservation efforts to ensure long-term sustainability.