University of Arkansas. Cooperative Extension Service.
The collection of digital images is provided as a service to Arkansas agriculture. These images represent symptoms of both pathological (infectious) and non-pathological (physiological/environmental) disorders of agronomic row crops and horticultural crops that grow in Arkansas. These photos are useful as an identification tool to growers of the crops listed.
DOC. NOAA. Great Lakes Environmental Research Laboratory.
The present database targets nonindigenous aquatic species that are not considered to have been native to any part of the Great Lakes basin. GLANSIS functions as a Great Lakes specific node of the USGS NAS national database.
DOC. NOAA. Great Lakes Environmental Research Laboratory. Great Lakes Aquatic Nonindigenous Species Information System (GLANSIS).