Every reference with a DOI in the deposited reference list resolved to a known
work in Crossref or DataCite at the dated check, and none carried a publisher retraction,
withdrawal, or removal notice.
The 24 checked references that resolve
resolves10.1017/S0962728600014706The Use of Artificial Turf as a Foraging Substrate for Individually Housed Rhesus Monkeys (<i>Macaca Mulatta)</i>
resolves10.1016/0168-1591(90)90036-DCarcass feeding of captive cheetahs (Acinonyx jubatus): the effects of a naturalistic feeding program on oral health and psychological well-being
resolves10.1002/zoo.1430100409Primate puzzleboard: A simple environmental enrichment device for captive chimpanzees
resolves10.1002/zoo.1430140408Effectiveness of acoustic “prey”: Environmental enrichment for a captive African leopard (<i>Panthera pardus</i>)
resolves10.1017/S0962728600018054Preliminary Evaluation of Environmental Enrichment Techniques for African Lions <i>(Panthera leo)</i>
resolves10.2307/1129854The Effects of Varying Environmental Demands on Maternal and Infant Behavior
resolves10.1002/zoo.1430120206The influence of food presentation on the behavior of small cats in confined environments
resolves10.1002/zoo.1430040303Increasing activity in captive orangutans: Provision of manipulable and edible materials
The 27 references without a DOI — listed, not checked
no DOI — not checkedProceedings of the Third International Conference on Environmental Enrichment
no DOI — not checkedBashawMJ.2000.To hunt or not to hunt: a feeding enrichment experiment with captive wild cats. Master's thesis Georgia Institute of Technology Atlanta. 88 p.
no DOI — not checkedSpatial distribution of food and dominance related behaviors in bonnet macaques: a laboratory study
no DOI — not checkedSecond nature: environmental enrichment for captive animals
no DOI — not checkedDeep woodchip litter: hygiene, feeding, and behavioral enhancement in eight primate species
no DOI — not checkedTigers of the world: the biology, biopolitics, management, and conservation of an endangered species
no DOI — not checkedTigers of the world: the biology, biopolitics, management, and conservation of an endangered species
no DOI — not checkedWild cats of the world
no DOI — not checkedProceedings of the Third International Conference on Environmental Enrichment
no DOI — not checkedProceedings of the Third International Conference on Environmental Enrichment
no DOI — not checkedProceedings of the Third International Conference on Environmental Enrichment
no DOI — not checkedProceedings of the Third International Conference on Environmental Enrichment
no DOI — not checkedNaturalistic solutions to the behavioral problems of captive animals
no DOI — not checkedSecond nature: environmental enrichment for captive animals
no DOI — not checkedEthics on the ark
no DOI — not checkedBehavioral enrichment in the zoo
no DOI — not checkedMeasuring behavior: an introductory guide
no DOI — not checkedStereotypic animal behaviour–fundamentals and applications to welfare
no DOI — not checkedMcPheeME.1998.Behavioral research on captive mammals: its purpose effectiveness and perception. Master's thesis University of Michigan Ann Arbor Michigan. 120 p.
no DOI — not checkedSecond nature: environmental enrichment for captive animals
no DOI — not checkedFundamentals of behavioral statistics
no DOI — not checkedTiger! The story of the Indian tiger
no DOI — not checkedThe deer and the tiger
no DOI — not checkedThe Serengeti lion: a study of predator–prey relations
no DOI — not checkedLong‐term effects of inanimate environmental enrichment on young rhesus monkeys
no DOI — not checkedTiger predatory behavior, ecology, and conservation
no DOI — not checkedAn alternative to processed meat diets: carcass feeding at wildlife safari
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