The Effects of Live Feeding on Swimming Activity and Exhibit Use in Zoo Humboldt Penguins (Spheniscus humboldti) (Fernandez et al., 2021)
New paper in JZBG looked into the effects of live feeding (trout) on the swimming activity and enclosure use of zoo-housed Humboldt penguins: ✔>30% total swimming increase in live feed days; ✔Increased (overall) enclosure use in live feed days; ✔Live feeding may be an effective enrichment strategy in this species.
Exploring How White-Faced Sakis Control Digital Visual Enrichment Systems (Hirskyj-Douglas & Kankaanpää, 2021)
Research published in Animals investigated the use of an interactive video device as enrichment for saki monkeys at Korkeasaaren eläintarha:
✔Device gave sakis the choice to trigger different videos; ✔Underwater & worm videos triggered more than others (animals, abstract art, forest); ✔Scratching, which is potentially stress-related, decreased; ✔Device use eventually decreased - habituation? ✔Device potentially enriching, but challenges of quantifying interactions discussed.
Using longitudinal data to evaluate the behavioural impact of a switch to carcass feeding on an Asiatic lion (Panthera leo persica) (Finch et al., 2020)
What is the long-term behavioural impact of carcass feeding on zoo-housed Asiatic lions? A lioness at Chester Zoo showed the following behavioural changes 12 months after the diet change: ✔Reduction in pacing; ✔Increase in resting behaviour; ✔Increase in feeding-related behaviours, shortly after & 12 months after the diet change.
A persistent abnormal repetitive behaviour in a false water cobra (Hydrodynastes gigas) (Michaels et al., 2020)
Fresh new paper looked into stereotypic behaviour in captive false water cobras: ✔Observed fixed pattern of movement against viewing window identified as potential stereotypy; ✔Snake spent some time in this repetitive behaviour, which was also reported by another zoo; ✔The enrichment used did not reduce the behaviour's frequency or changed the snakes' use of the enclosure.