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Populace hnědásků (Melitaeini) na nelesních stanovištích NP Podyjí refaunovaných pastvou koní
HÁJKOVÁ, Klára
This thesis evaluates the impact of refaunation by the Exmoor pony on populations of five Melitaea butterfly species - Melitaea athalia, M. cinxia, M. didyma, M. britomartis and M. aurelia inhabiting xeric grasslands of the Podyjí National Park - Havranické Vřesoviště and Mašovická Střelnice. Both grassland sites are grazed since 2018. I compared adult butterflies' demography structure, mobility, spatial distribution, and habitat requirements with an earlier study carried out before the impact of horses (Vodičková et al., 2019). I detected multiple changes, some of them attributable to the horses (e.g., butterfly spatial distribution) and some not (e.g., population sizes), but also a remarkable stability, e.g., in dispersal parameters.
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