Journal of Insect Conservation

, Volume 12, Issue 6, pp 603–615

Microhabitat use by larvae and females of a rare barrens butterfly, frosted elfin (Callophrys irus)

  • Gene Albanese
  • Peter D. Vickery
  • Paul R. Sievert
Original Paper

DOI: 10.1007/s10841-007-9097-2

Cite this article as:
Albanese, G., Vickery, P.D. & Sievert, P.R. J Insect Conserv (2008) 12: 603. doi:10.1007/s10841-007-9097-2

Abstract

The frosted elfin (Callophrys irus) is a localized and declining butterfly found in xeric open habitats maintained by disturbance. We described the effects of woody plant canopy cover, topography and host plant size and density on the quality of microhabitat of wild indigo (Baptisia tinctoria) host plants containing late instar frosted elfin larvae at four study sites in southeastern Massachusetts, United States. We also assessed whether females preferentially depositing eggs on host plants within specific microhabitats, therefore conferring greater survivorship to the larvae through the late-instar stage. We found that moderate amounts of canopy cover and large plant size characterized larvae-occupied host plants. In the absence of tree canopy cover, late instar larvae density remained low even when host plant density was high. However, females oviposited on wild indigo plants without regard to any of the vegetative or environmental variables we measured. These results indicate that canopy cover was an important characteristic of microhabitats containing late instar larvae, and late instar larvae occupancy was determined by suitable microhabitat conditions, and not female oviposition selection. Managing for canopy cover and microhabitat heterogeneity within relatively open habitats is recommended for the maintenance of frosted elfin populations.

Keywords

Frosted elfin Callophrys irus Baptisia tinctoria Oviposition preferences Canopy cover 

Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  • Gene Albanese
    • 1
  • Peter D. Vickery
    • 2
  • Paul R. Sievert
    • 3
  1. 1.Department of Natural Resource Ecology and Management, 404 LSW, Fish & Wildlife UnitOklahoma State UniversityStillwaterUSA
  2. 2.Center for Ecological ResearchRichmondUSA
  3. 3.U.S. Geological Survey, Massachusetts Cooperative Fish and Wildlife Research Unit, Department of Natural Resources ConservationUniversity of Massachusetts at AmherstAmherstUSA

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