Within-patch mobility and flight morphology reflect resource use and dispersal potential in the dryad butterfly Minois dryas

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dc.contributor.authorKalarus, Konrad
dc.contributor.authorSkórka, Piotr
dc.contributor.authorHalecki, Wiktor
dc.contributor.authorJirak, Agata
dc.contributor.authorKajzer-Bonk, Joanna
dc.contributor.authorNowicki, Piotr
dc.contributor.organizationInstitute of Environmental Sciences, Jagiellonian Universityen
dc.contributor.organizationInstitute of Zoology, Poznan University of Life Sciencesen
dc.contributor.organizationFaculty of Environmental Engineering and Land Surveying, University of Agriculture in Krakowen
dc.description.abstractKnowledge of mobility is essential for understanding animal habitat use and dispersal potential, especially in the case of species occurring in fragmented habitats. We compared within-patch movement distances, turning angles, resting times, and flight-related morphological traits in the locally endangered butterfly, the dryad (Minois dryas), between its old populations occupying xerothermic grasslands and newly established ones in wet meadows. We expected that the latter group should be more mobile. Individuals living in both habitat types did not differ in their body mass and size, but those from xerothermic grasslands had wider thoraxes and longer wings, thus lower wing loading index (defined as body mass to wing length ratio). The majority of movements were short and did not exceed 10 m. Movement distances were significantly larger in males. However, there was no direct effect of habitat type on movement distances. Our results suggest that the dryads from xerothermic grasslands have better flight capabilities, whereas those from wet meadows are likely to invest more in reproduction. This implies that mobility is shaped by resource availability rather than by recent evolutionary history. Lower female mobility may have negative implications for the metapopulation persistence because only mated females are able to (re)colonise vacant habitat patches efficiently. Conservation efforts should thus be focused on maintaining large habitat patches that prevent stochastic local extinctions. Furthermore, the recommendation of promoting the exchange of individuals among patches through improving matrix permeability, as well as assisted reintroductions of the species into suitable vacant habitats should also improve its conservation.en
dc.description.epersonKonrad Kalarus
dc.description.sponsorshipAcknowledgments: The study was funded by the Polish National Science Centre Grant No. N304 064139 and by the German Federal Ministry of Education and Research under its FP6 BiodivERsA Eranet project CLIMIT. The fieldwork was additionally supported by the Jagiellonian University through its DS/WBINOZ/INOS´/761/09-10 funds as well as by the Bratniak Foundation. The authors are grateful to the students of the Jagiellonian University and the volunteers, especially Katarzyna Czober and Jakub Osika who participated in the fieldwork. We also thank Bernard Kromka for improving the English in the manuscript.en
dc.identifier.citationKalarus K., Skórka P., Halecki W., Jirak A., Kajzer-Bonk J., Nowicki P., 2013, Within-patch mobility and flight morphology reflect resource use and dispersal potential in the dryad butterfly Minois dryas, Journal of Insect Conservation 17(6), 1221-1228.en
dc.rightsUznanie autorstwa 3.0 Polskapl_PL
dc.subjectendangered speciesen
dc.subjectmorphometric measurementsen
dc.subjectmosaic landscapeen
dc.subjectphenotypic plasticityen
dc.subjectplastyczność fenotypowapl
dc.titleWithin-patch mobility and flight morphology reflect resource use and dispersal potential in the dryad butterfly Minois dryasen
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