Effect of Food Distribution on Resource Selection of a Predator and Prey. Gardner, R. Master's thesis, University of Georgia, Athens, Georgia, 2020. abstract bibtex Management actions that alter the dispersion of food resources may alter target and non-target species resource selection. We used radio telemetry to determine how supplemental feeding of Northern Bobwhite (Colinus virginianus) may alter their resource selection and that of Timber rattlesnakes (Crotalus horridus) and Black rat snakes (Pantherophis obsoletus). We compared 2nd and 3rd order resource selection of each species between treatment areas with stocked supplemental feeders (“feeder-fed”) and empty feeders (“unfed”) or supplemental feedlines (“broadcast-fed”). The effects of food distribution were equivocal for Black rat snakes. Timber rattlesnakes and bobwhites occurred closer to supplemental feed when available, but bobwhites were more strongly affected by filled feeders than empty feeders or feedlines, and Timber rattlesnakes established their home ranges near feedlines than feeders. These results demonstrate that different distributions of food resources can affect both target prey and non-target predator behavior, unintentionally increasing spatial overlap between predator and prey species.
@mastersthesis{gardner_effect_2020,
address = {Athens, Georgia},
title = {Effect of {Food} {Distribution} on {Resource} {Selection} of a {Predator} and {Prey}},
abstract = {Management actions that alter the dispersion of food resources may alter target and non-target species resource selection. We used radio telemetry to determine how supplemental feeding of Northern Bobwhite (Colinus virginianus) may alter their resource selection and that of Timber rattlesnakes (Crotalus horridus) and Black rat snakes (Pantherophis obsoletus). We compared 2nd and 3rd order resource selection of each species between treatment areas with stocked supplemental feeders (“feeder-fed”) and empty feeders (“unfed”) or supplemental feedlines (“broadcast-fed”). The effects of food distribution were equivocal for Black rat snakes. Timber rattlesnakes and bobwhites occurred closer to supplemental feed when available, but bobwhites were more strongly affected by filled feeders than empty feeders or feedlines, and Timber rattlesnakes established their home ranges near feedlines than feeders. These results demonstrate that different distributions of food resources can affect both target prey and non-target predator behavior, unintentionally increasing spatial overlap between predator and prey species.},
language = {en},
school = {University of Georgia},
author = {Gardner, Rachel},
year = {2020},
}
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