Habitat requirements and population dynamics of three endangered butterfly species

Project overview

This project conducted by Victor focuses on understanding the habitat requirements, population dynamics, and conservation strategies for three endangered butterfly species: the Marsh Fritillary (Euphydryas aurinia), the Apollo (Parnassius apollo), and the Large Blue (Phengaris arion). These species are of significant conservation concern and are included in the EU’s Habitats Directive.

Key research areas:

Habitat requirements: Detailed analysis of the habitat preferences of each species, focusing on vegetation type, microclimate, and availability of host plants.

Population trends: Monitoring and analyzing population dynamics over time to understand trends and factors influencing population changes.

Movement patterns: Studying the movement and dispersal patterns to determine how individuals utilize the landscape and migrate between habitats.

Grazing impact: Investigating the effects of grazing on butterfly populations and their host plants, and determining optimal grazing regimes for conservation.

Management practices: Developing and testing conservation management practices, including habitat restoration and the management of limestone quarries, to support sustainable populations.

Climate change effects: Assessing how changes in temperature and extreme weather (like the 2018 summer drought), affect the butterflies’ phenology, behavior, and survival.

Methodology:

Field surveys: Extensive fieldwork involving mark-recapture techniques to monitor butterfly populations and movements.

Data analysis: Use of GIS and statistical models to analyze habitat data, population trends, and movement patterns.

Temperature monitoring: Installation of temperature loggers to record microclimatic conditions and their impact on butterfly activity and survival.

Grazing experiments: Controlled grazing experiments to determine the best practices for maintaining butterfly habitats.

Community engagement: Involvement of local communities and stakeholders in conservation efforts and habitat management.

Significance:

This project aims to provide critical insights into the conservation needs of these endangered butterflies and develop effective management strategies to ensure their survival. By understanding the detailed habitat requirements and population dynamics, the project seeks to enhance conservation efforts not only for these species but also for the broader ecosystem they inhabit.