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2026
article
OpenAlex
Lauren L. Berry, Brett A. DeGregorio, Daniel R. Uden, Caleb P. Roberts
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 …
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2026
article
OpenAlex
Gregory J. Norwood, Logan M. Rowe, Brett A. DeGregorio, David L. Cuthrell et autres
The Culver’s root borer moth (Papaipema sciata) (Lepidoptera: Noctuidae) is a rare Noctuid that requires Culver’s root (Veronicastrum virginicum) to complete its lifecycle within remnant native grasslands and open woodlands in the midwest and northeast United States. We report on 26 years …
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2026
article
OpenAlex
Emily R. Donahue, Alexander J. Worm, Brett A. DeGregorio, Lorin A. Neuman‐Lee et autres
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, especially at higher trophic levels, remains …
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2026
article
OpenAlex
John T. Veon, Joshua L. Dooley, Luke W. Naylor, Brett A. DeGregorio et autres
Abstract The recovery of the Canada goose ( Branta canadensis ) is one of North America's greatest conservation success stories. Today, continental abundance of temperate‐breeding Canada geese (those breeding in southern Canada and lower 48 states in the United States) greatly exceeds …
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2026
article
OpenAlex
Brigit R. Rooney, Roland Kays, Michael V. Cove, Alex Jensen et autres
ABSTRACT Motivation SNAPSHOT USA is an annual, multi‐contributor camera trap survey of mammals across the United States. The growing SNAPSHOT USA dataset is intended for tracking the spatial and temporal responses of mammal populations to changes in land use, land cover and …
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2026
article
OpenAlex
Lauren L. Berry, Brett A. DeGregorio, Daniel R. Uden, Caleb P. Roberts
Abstract Grasslands are an imperiled ecosystem, and grassland bird abundance is declining across North America. One of the strongest drivers for these declines is woody plant encroachment of grasslands. In the Great Plains and Sagebrush biomes of North America, spatial covariance—a remote‐sensing …
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2026
article
OpenAlex
Kenneth C. Wilson, Scott J. Chiavacci, Caleb P. Roberts, Brett A. DeGregorio
Abstract Invasive species within North America, particularly wild pigs ( Sus scrofa ), pose a serious threat to native ecosystems through both direct and indirect impacts. Wild pigs are a large‐bodied omnivorous species native to Eurasia and introduced to North America. Using …
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2025
article
OpenAlex
Brett A. DeGregorio
This is a final technical report submitted to the Arkansas Game and Fish Commission following a 3 year research project into the commercial harvest of freshwater turtles in Arkansas.
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2025
article
OpenAlex
Brett A. DeGregorio
This is a final technical report submitted to the Arkansas Game and Fish Commission following a 3 year research project into the commercial harvest of freshwater turtles in Arkansas.
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Accès ouvert
2025
dataset
OpenAlex
Brett A. DeGregorio, Steven M. Gray
The Michigan Mammal Monitoring Project is a collection of wildlife camera trap data from within the state of Michigan. It contains camera trap data associated with a number of different projects lead by the U.S. Geological Survey's Michigan Cooperative Fish and Wildlife …
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2025
article
OpenAlex
Andrhea Massey, John David Willson, Brett A. DeGregorio
The Mississippi Alluvial Plain (MAP) of Arkansas is a landscape where many wetlands have been altered for use as aquaculture ponds or agricultural ditches. Commercial harvest of freshwater turtles within the MAP is not restricted or limited, with reported harvest numbers for …
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2025
article
OpenAlex
Brett A. DeGregorio, Anant Deshwal
The nine-banded armadillo (Dasypus novemcinctus: hereafter armadillo) was first recorded in the United States (U.S.) in the state of Texas in 1849 and has been expanding its range northward and eastward since then. With the widespread adoption of participatory science as well …
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