San Diego Management & Monitoring Program


Invertebrate Species
Hermes Copper Adult Surveys

January 1, 2016 - December 31, 2016 completed

Project description

In 2016, researchers conducted butterfly surveys and habitat assessments at small northern populations and at southern sites. They did not detect Hermes copper adults at any of the eight northern sites, although this was consistent with other (larger) sites in the county due to continuing drought conditions. They did detect Hermes copper at some of the southern sites. Habitat assessments resulted in the mapping of 65 spiny redberry patches and 11 single redberry shrubs across the 8 sites. Up to 90 redberry shrubs were recorded in a single patch, but more patches were represented by a relatively low number of shrubs, and most of the redberry patches had at least 60% shrub cover. Additional insight may be gained from a more formal comparison to the habitat measured at Hermes copper sites in southern San Diego County. Monitoring for Hermes copper continued at a subset of the sites in 2017, 2018, and 2019. The species has been greatly affected by the drought.


Project groups

Super Group: Rare Butterfly Management and Conservation Planning

SDMMP_2017_19647237

Project Group: Hermes Copper Butterfly


Project Data - Files


Project focus

Project type: Monitoring-Animals

Target species: Hermes copper


Implementing entities

Investigator: Douglas Deutschman

Main implementing entity: San Diego State University

Point of contact: Dan Marschalek

SDMMP lead: Kris Preston

Study lead: Dan Marschalek


Files and Documents