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Full-Text Articles in Animal Sciences
Multivariate Analysis Of Open Field Exploration Identifies Latent Spatial And Social Behavioral Axes In Domestic Dogs, Budhaditya Chowdhury, Moira Van Staaden, Robert Huber
Multivariate Analysis Of Open Field Exploration Identifies Latent Spatial And Social Behavioral Axes In Domestic Dogs, Budhaditya Chowdhury, Moira Van Staaden, Robert Huber
Advanced Science Research Center
Recent methodological advances in studying large scale animal movements have let researchers gather rich datasets from behaving animals. Often collected in small sample sizes due to logistical constraints, these datasets are however, ideal for multivariate explorations into behavioral complexity. In behavioral studies of domestic dogs, although automated data loggers have recently seen increasing use, a comprehensive framework to identify complex behavioral axes is lacking. Dog behavioral studies frequently rely on subjective ratings, despite demonstrable evidence that these are insufficient for identifying behavioral variables. Taking advantage of dogs’ innate running abilities and readily available GPS data loggers, we extracted latitude-longitude coordinates …
Black Vulture Conflict And Management In The United States: Damage Trends, Management Overview, And Research Needs, Bryan M. Kluever, Morgan Pfeiffer, Scott C. Barras, Brett Dunlap, Lee A. Humberg
Black Vulture Conflict And Management In The United States: Damage Trends, Management Overview, And Research Needs, Bryan M. Kluever, Morgan Pfeiffer, Scott C. Barras, Brett Dunlap, Lee A. Humberg
USDA Wildlife Services: Staff Publications
Contrary to rapid declines of many vulture (Accipitridae, Cathartidea) species worldwide, black vulture (Coragyps atratus) populations are increasing and expanding their range in North America. Vultures exhibit complex behaviors and can adapt to any human-dominated landscape or land use. These traits, combined with population growth and range expansion, have contributed to increased human–vulture conflicts. Our goal was to summarize the current status and trends in human–black vulture conflicts (hereafter human– vulture conflicts), review available management strategies, identify knowledge gaps, and provide recommendations to enhance management and understanding of this species and the associated conflicts. We found human–vulture conflicts …
Effects Of Brodifacoum And Diphacinone Exposure On Four Species Of Reptiles: Tissue Residue Levels And Survivorship, Richard E. Mauldin, Gary W. Witmer, S. A. Shriner, Rachael S. Moulton, Katherine E. Horak
Effects Of Brodifacoum And Diphacinone Exposure On Four Species Of Reptiles: Tissue Residue Levels And Survivorship, Richard E. Mauldin, Gary W. Witmer, S. A. Shriner, Rachael S. Moulton, Katherine E. Horak
USDA Wildlife Services: Staff Publications
BACKGROUND: Anticoagulant rodenticides are used worldwide to control pest rodent species. However, the risks posed to nontarget reptiles have not been well characterized. In this study, 46 giant ameivas (Ameiva ameiva), 39 boa constrictors (Boa constrictor), 33 wood turtles (Rhinoclemmys pulcherrima), and 47 green iguanas (Iguana iguana) were orally dosed with one of two levels of either diphacinone or brodifacoum anticoagulant in propylene glycol solutions. Dosages were derived using daily food intake (DFI) equations, converting DFI to an equivalent anticoagulant bait amount and gavaging the solution volume needed to deliver the quantity of anticoagulant in that amount of bait. Animals …