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Tree Stress and Mortality from Emerald Ash Borer Does Not Systematically Alter Short-Term Soil Carbon Flux in a Mixed Northeastern U.S. Forest

Coleopteran Communities Associated with Forests Invaded by Emerald Ash Borer

Department of Entomology, University of Kentucky, S-225 Ag North, Lexington, KY 40546, USA
Author to whom correspondence should be addressed.
Forests 2018, 9(2), 69;
Received: 19 December 2017 / Revised: 23 January 2018 / Accepted: 25 January 2018 / Published: 30 January 2018
(This article belongs to the Special Issue Understanding and Managing Emerald Ash Borer Impacts on Ash Forests)
Extensive ash mortality caused by the non-native emerald ash borer alters canopy structure and creates inputs of coarse woody debris as dead and dying ash fall to the forest floor; this affects habitat heterogeneity; resource availability; and exposure to predation and parasitism. As EAB-induced (emerald ash borer-induced) disturbance progresses the native arthropod associates of these forests may be irreversibly altered through loss of habitat; changing abiotic conditions and altered trophic interactions. We documented coleopteran communities associated with EAB-disturbed forests in a one-year study to evaluate the nature of these changes. Arthropods were collected via ethanol-baited traps on five sites with varying levels of EAB-induced ash mortality from May to September; captured beetles were identified to the family level and assigned to feeding guilds (herbivore; fungivore; xylophage; saprophage; predator; or parasite). Over 11,700 Coleoptera were identified in 57 families. In spite of their abundance; herbivores comprised a relatively small portion of coleopteran family richness (8 of 57 families). Conversely, coleopteran fungivore richness was high (23 families), and fungivore abundance was low. Herbivores and fungivores were more abundant at sites where ash decline was most evident. The predatory Trogossitidae and Cleridae were positively correlated with ash decline, suggesting a positive numerical response to the increased prey base associated with EAB invasion. Ash forests are changing, and a deeper understanding of arthropod community responses will facilitate restoration. View Full-Text
Keywords: Fraxinus; invasive species; trophic guild; natural enemies Fraxinus; invasive species; trophic guild; natural enemies
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MDPI and ACS Style

Savage, M.B.; Rieske, L.K. Coleopteran Communities Associated with Forests Invaded by Emerald Ash Borer. Forests 2018, 9, 69.

AMA Style

Savage MB, Rieske LK. Coleopteran Communities Associated with Forests Invaded by Emerald Ash Borer. Forests. 2018; 9(2):69.

Chicago/Turabian Style

Savage, Matthew B., and Lynne K. Rieske 2018. "Coleopteran Communities Associated with Forests Invaded by Emerald Ash Borer" Forests 9, no. 2: 69.

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