Risk factors for the development of animal cruelty
Contributor(s):: Gullone, E.
Research shows that animal cruelty shares many of the aetiological pathways and risk factors that have been shown for other aggressive behaviors. The shared aetiology not only aids understanding of the co-occurrence that has been documented between animal cruelty and other aggressive and...
Which personality dimensions do puppy tests measure? A systematic procedure for categorizing behavioral assays
Contributor(s):: McGarrity, M. E., Sinn, D. L., Gosling, S. D.
With the recent increase in interest in personality in dogs, behavioral assays of their behavior have proliferated. There has been particularly strong interest in predicting adult behavior from puppy tests. As a result, researchers and practitioners seeking to measure personality in puppies are...
Importance of bringing dogs in contact with children during their socialization period for better behavior
Contributor(s):: Arai, S., Ohtani, N., Ohta, M.
"Bark parks" - a study on interdog aggression in a limited-control environment
Contributor(s):: Shyan, M. R., Fortune, K. A., King, C.
As limited-control dog parks become more popular, concerns arise about whether these parks encourage interdog aggression. Systematic observations made at 1 park in Indianapolis, USA over 72 h (between 1600 and 1830 h, 3-5 times a week) across 8 months (between March and November 2001) found that...
A fresh look at the wolf-pack theory of companion-animal dog social behavior
Contributor(s):: Kerkhove, W. van
A popular perspective on the social behavior of dogs in multiple-dog households sees the dogs' behavior as reflecting the sociobiological laws of the rigidly structured dominance hierarchy that has been described for wolf packs. This view suggests that aggression problems among dogs are natural...
Aggressive behavior in two different group-housing systems for pregnant sows
Contributor(s):: Chapinal, N., Ruiz-de-la-Torre, J. L., Cerisuelo, A., Gasa, J., Baucells, M. D., Manteca, X.
The study housed 120 pregnant sows from Day 29 of pregnancy to 1 week before parturition either in groups of 10 with trickle feeding (TRICKLE) or in groups of 20 with an unprotected electronic sow feeding (FITMIX). The study recorded aggressive interaction on 11 nonconsecutive days. Frequency of...
Behavioural decisions for managing social distance and aggression in captive polar bears ( Ursus maritimus )
Contributor(s):: Renner, M. J., Kelly, A. L.
The polar bear (Ursus maritimus) in most zoos attracts high levels of public attention and can play an important role in conservation education. Polar bears in the wild are typically solitary; bears in captivity often house socially. This study reported behavioural evidence on how bears manage...
Bioacoustic monitoring of aggression in group-housed rhesus macaques
Contributor(s):: McCowan, B., Rommeck, I.
Many captive primate facilities house rhesus macaques in multimale-multifemale social groups in large enclosures that simulate the natural social and environmental features characteristic of the species, enhancing their reproductive performance as well as their psychological well-being, yet one...
Can aggression in dogs be elicited through the use of electronic pet containment systems?
Contributor(s):: Polsky, R.
Five cases are described that involve severe attacks on humans by dogs who were being trained or maintained on an electronic pet containment system. The system is designed to boundary train a dog through the use of electric shock in an escape-avoidance conditioning paradigm. Data were collected...
Comment on van Kerkhove's "wolf-pack theory"
Contributor(s):: Wright, J. C.
van Kerkhove (2004/this issue) attempts to address an applied animal behavior problem. A cacophony of issues, however, points to the difficulty of understanding and integrating the scientific literature on principles of animal behavior and conditioning (learning theory). The author's primary...
Comment on van Kerkhove's commentary
Contributor(s):: King, T.
Comment on "van Kerkhove's Commentary" [2004 this issue] noting that the author "cannot dismiss completely or comfortably the use of social dominance theory in behavior modification."
Communication patterns within a group of shelter dogs and implications for their welfare
Contributor(s):: Petak, I.
Keeping shelter dogs in groups provides them with a more socially and physically enriched environment, but eventually it may cause them stress. Understanding dogs' communication could help shelter staff recognize and prevent undesirable communicative patterns and encourage desirable ones....
Community demographics and the propensity to report animal cruelty
Contributor(s):: Taylor, N., Signal, T. D.
The last decade has seen an increased awareness concerning links between violence to nonhuman animals and violence to humans. This has resulted in a number of cross-reporting initiatives between family service providers and animal welfare organizations. The success of these initiatives rests on...
Do male mice prefer or avoid each other's company? Influence of hierarchy, kinship, and familiarity
Contributor(s):: Loo, P. L. P. van, Groot, A. C. de, Zutphen, B. F. M. van, Baumans, V.
In the laboratory, individual housing of male mice who otherwise show aggression is common practice. Because mice are a social species, the question arises whether this procedure is right from the animals' point of view. This study tested the preference of subordinate animals for their dominant...
Dog breed stereotype and exposure to negative behavior: effects on perceptions of adoptability
Contributor(s):: Wright, J. C., Smith, A., Daniel, K., Adkins, K.
The purpose of the study was to determine if brief exposure to a dog behaving badly or in a friendly manner affects subsequent perceptions of the target dog's and other dogs' adoptability. Participants viewed a videotape of an adoptable German shepherd behaving either aggressively or prosocially...
Effects of induced molting on the well-being of egg-laying hens
Contributor(s):: McCowan, B., Schrader, J., DiLorenzo, A. M., Cardona, C., Klingborg, D.
Induced molting in egg-laying hens is an important method for maximizing hen egg production and quality as well as hen health in commercial settings; however, there is growing societal concern over its effects on hen well-being. Using individual hens as their own controls, this research examined...
Effects of single-use and group-use enrichment on stereotypy and intragroup aggressive and affiliative behaviors of a social group of squirrel monkeys (Saimiri sciureus) at the Singapore Zoo
Contributor(s):: Sha, J., Han, S., Marlena, D., Kee, J.
Four food-based enrichment devices were used to test the effects of single-use and group-use enrichment devices on stereotypy, intragroup aggression, and affiliation in a compatible group of 5 squirrel monkeys (Saimiri sciureus). All enrichment devices were found to reduce overall stereotypic...
Functional analysis of aggression in a black-and-white ruffed lemur ( Varecia variegata variegata)
Contributor(s):: Farmer-Dougan, V.
A functional analysis was conducted to assess the antecedent and reinforcing conditions underlying aggressive behavior in a female lemur in captivity. Results showed that her aggression was primarily the result of human attention. A replacement behavior-training program was introduced, and the...
Rat's demand for group size
Contributor(s):: Patterson-Kane, E. P., Hunt, M., Harper, D.
Social isolation compromises the welfare of rats. However, it is not clear how many rats should be housed together under laboratory conditions. Pair housing, sometimes recommended over group housing, may help avoid aggression and disease transmission. Female rats, however, showed the highest...
Response to comments
Author's response to reviewers of his article, "A Fresh Look at the Wolf-Pack Theory of Companion-Animal Dog Social Behavior,} which appeared in this issue and "raised issues worthy of further consideration and investigation."