Brett A. DeGregorio

Comparing Spatial Covariance to Common Field Vegetation Metrics

Spatial covariance is a metric used to delineate grassland cores and track state transitions driven by woody encroachment in rangelands, and it does so by calculating the degree of spatial coexistence between functional groups like grasses and trees at different scales. Spatial c...

Context-dependent prevalence of neonicotinoid insecticides in a predatory songbird, the loggerhead shrike (Lanius ludovicianus)

Neonicotinoids are a class of widely used insecticides typically considered safe for non-target organisms, but numerous studies have documented adverse effects across diverse taxa. Despite this, documentation of neonicotinoid residues in vertebrates and their subsequent impacts,...