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Context Literature Review and Research Questions Hypotheses
Habitat Use and Distribution of Regal fritillaries Speyeria idalia Drury
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abundance of purple adult Barneveld 1999 Barneveld Barneveld 2000 Thomson Barneveld and Thomson Barneveld Prairie Barton butterflies capture events cells at Barneveld cells with low Chi-square tests comm conducted diapause distribution dominant grass type estimates of shrub females fieldwork flowering plant abundance forb abundance fritillary Speyeria idalia grassland grid cells habitat areas habitat patches high native grass Hypolimnas bolina idalia abundance idalia counts idalia individuals July Kopper larvae Lepidoptera males marker Nagel native forbs native grass abundance Nature Conservancy nectar plant nectar sources North Prairie Nymphalidae occur oviposition P-value percent shrub cover population estimates prescribed burning Proportion of grid purple flowering plants range class recolonization regal fritillary regal fritillary Speyeria result sample shrub cover slope southwestern Wisconsin Speyeria idalia Drury subset survey counts tallgrass prairie Thomson 1999 Thomson Thomson 2000 Barneveld Thomson Prairie transect variables violet abundance violet presence visual estimates wing wear Wisconsin