Rare Butterfly Management and Conservation Planning, Task 2: Hermes Copper Adult Surveys at North County Sites

Type: report

Article abstract: In 2016, we conducted butterfly surveys and habitat assessments at these small northern populations. We did not detect Hermes copper adults at any of the eight sites, although this was consistent with other (larger) sites in the county due to continuing drought conditions. 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. (Contract: #5004388, Task Order #2)

Number of pages: 12

Authors: Marschalek, Dan; Deutschman, Douglas;

Day: 30

Month: August

Year: 2016

Notes: SANDAG TransNet EMP Contract: # 5004388

Prepared for: San Diego Association of Governments;

Prepared by: San Diego State University, Department of Biology;

Keywords: butterflies; butterfly surveys; Hermes copper (Lycaena hermes); north county conserved land;

Species: Hermes copper


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File owner: San Diego Management and Monitoring Program
Task 2 Deliverable_HC_NoCo_Final.pdf