Environmental Enrichment

Includes structural, behavioral, food, and auditory enrichment.

Alnes, I. B., Jensen, K. H., Skorping, A. et al. 2021. Ontogenetic change in behavioral responses to structural enrichment from fry to parr in juvenile Atlantic salmon (Salmo salar L.). Frontiers in Veterinary Science 8, 638888.

Enrichment is widely used as a tool for studying how changes in environment affect animal behavior. Here, we report an experimental study investigating if behaviors shaped by stimuli from environmental enrichment depending on the stage...

van der Geest, J. N., Spoor, M., Frens, M. A. 2021. Environmental enrichment improves vestibular oculomotor learning in mice. Frontiers in Behavioral Neuroscience 15, 676416.

We assessed the behavioral effects of environmental enrichment on contrast sensitivity, reflexive eye movements and on oculomotor learning in mice that were housed in an enriched environment for a period of 3 weeks. Research has...

Arre, A. M., Horschler, D. J. 2021. Swimming and diving as social play in juvenile rhesus macaques (Macaca mulatta). Behaviour 158(6), 529-546.

Although play is ubiquitous throughout the animal kingdom, and in primates especially, the ultimate explanations and proximate mechanisms of play are not well understood. Previous research proposes that primate play may be important for the...

Hoehfurtner, T., Wilkinson, A., Nagabaskaran, G. et al. 2021. Does the provision of environmental enrichment affect the behaviour and welfare of captive snakes? Applied Animal Behaviour Science 239, 105324.

There is a wealth of evidence demonstrating the benefits of environmental enrichment across a range of different animal species. However, there is comparatively little such research into the effect of enrichment provision on captive reptiles...

Nagabaskaran, G., Burman, O. H. P., Hoehfurtner, T. et al. 2021. Environmental enrichment impacts discrimination between familiar and unfamiliar human odours in snakes (Pantherophis guttata). Applied Animal Behaviour Science 237, 105278.

Environmental enrichment has been found to significantly influence the cognitive abilities of a variety of mammalian and avian species, with effects ranging from positive to negative, however, these effects have been little studied in reptiles...

Lemos de Figueiredo, R., Hartley, M., Fletcher, A. W. 2021. Assessing the behaviour, welfare and husbandry of mouse deer (Tragulus spp.) in European zoos. Applied Animal Behaviour Science 237, 105283.

Mouse deer are primitive, forest ungulates found in Asia and Africa. Both the lesser mouse deer (Tragulus javanicus) and the Philippine mouse deer (T. nigricans) are managed in European zoos, but inconsistent breeding success between...

Zhang, C., Juniper, D. T., Meagher, R. K. 2021. Effects of physical enrichment items and social housing on calves’ growth, behaviour and response to novelty. Applied Animal Behaviour Science 237, 105295.

The objective of this study was to determine the effects of social housing, the provision of physical enrichment, and the interaction between the two on calf growth, behaviour and fearfulness. Forty-eight calves were randomly allocated...

Polanco, A., Meagher, R., Mason, G. 2021. Boredom-like exploratory responses in farmed mink reflect states that are rapidly reduced by environmental enrichment, but unrelated to stereotypic behaviour or ‘lying awake’. Applied Animal

Consistent with boredom, prior work has found that mink raised in non-enriched (NE) or enriched (E) conditions differ in their motivations to seek stimulation: NE mink spent more time oriented towards and in contact with...

Zhang, Z., Fu, Y., Zhang, Z. et al. 2021. A comparative study on two territorial fishes: The influence of physical enrichment on aggressive behavior. Animals 11(7), 1868.

Intraspecific aggression is detrimental to body/fin damage, physiological stress, and other problems in aquaculture. Environmental enrichment has been proposed to have positive effects on fish aggressive behavior, physiological stress, and fish welfare, but there are...

dos Santos Gauy, A. C., Bolognesi, M. C., Martins, G. D. et al. 2021. Preference and motivation tests for body tactile stimulation in fish. Animals 11(7), 2042.

We tested whether territorial fish (Nile tilapia) perceive body tactile stimulation as a positive or negative resource. Individual male fish were placed for eight days in an aquarium containing a rectangular PVC frame, which was...

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