Resource Detail

Title	Historical change in the outbreak dynamics of an invading forest insect
Author	Liebhold, Andrew M.; Hajek, Ann E.; Walter, Jonathan A.; Haynes, Kyle J.; Elkinton, Joseph ; Muzika, Rose-Marie
Date	2022
Description	The population dynamics and impacts of non-native species often change following their initial establishment, with impacts either increasing or decreasing over time. The reasons why the abundance of an invading species may change are varied but often reflect changes in the way in which populations interact with resident communities. Here we analyze changes in the outbreak dynamics of Lymantria dispar (formerly known to as the "gypsy moth"), a Eurasian foliage-feeding insect that has been established in N. America for ca. 150 years. We find that during the course of this species' presence in N. America, it has continually exhibited population dynamics in which populations reach outbreak levels, resulting in defoliation of large forested areas.
Keywords	Gypsy moth; Lymantria dispar; Periodicity; Spatial synchrony; Natural enemy; Population dynamics
URL	https://www.nrs.fs.fed.us/pubs/63895
Photograph	1
ID	8131