Insect herbivore impact on a keystone plant colonist in primary succession at Mount St. Helens from 1994 to 2017

This data base contains estimates of damage to lupin (Lupinus lepidus var. lobbii) by several species of leaf-tying and root-boring moth larvae (Lepidoptera), along with associated estimates of vegetation cover, in primary successional sites at Mount St. Helens. The surveys began in 1993 and are ongoing; This database includes data for 1994, 1995, and 1998-2017. Surveys were located at a variety of primary successional sites on Mount St. Helens’ Pumice Plain. Surveys generally occurred in mid to late August, when leaf-miner damage is at its maximum, but prior to maximum damage by root-borers. The number of sites, location of sites, and types of data collected varied across years and, but lupin cover, bare ground, and % lupin damage are reliable across the time series. Please note, leaf-miner damage has been been temporarily deleted from lupin.csv. Contact data authors if you seek a collaboration using the deleted data.