Datasets / Status of six endangered California Butterflies 1977


Status of six endangered California Butterflies 1977

Published By US Fish and Wildlife Service, Department of the Interior

Issued over 9 years ago

US
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Summary

Type of release
a one-off release of a single dataset

Data Licence
Not Applicable

Content Licence
Creative Commons CCZero

Verification
automatically awarded

Description

A survey was conducted from MarchSeptember 1977 to determine the current status of six federally endangered butterflies which reside in California. The butterflies are the San Bruno elfin Callophrys mossii bayensis, Misson blue Plebejus icarioides missionensis, Lotis blue Lycaeides argyrognomon lotis, Smiths blue Shijimiaeoides enoptes smithi, El Segundo blue Shijimiaeoides battoides allyni, and Langes metalmark Apodemia mormo langei. The following aspects were investigated for each of the endangered species: 1 Survey of the sites currently inhabited and exploration for unknown sites; 2 Population size, density and mortality factors determined by markreleaserecapture techniques 3 Life history investigations to determine larval food plants, and; 4 Determination of factors threatening their survival.