Spatial memory in captive American black bears (Ursus americanus).

Area of Science:

• Animal Behavior
• Cognitive Ecology
• Mammalian Ecology

Background:

• Understanding spatial memory is crucial for wildlife conservation and management.
• Captive environments may influence the expression of natural foraging behaviors and cognitive abilities in American black bears (Ursus americanus).

Purpose of the Study:

• To investigate the spatial memory and foraging strategies of captive American black bears.
• To assess the impact of delay intervals and baiting patterns on foraging accuracy.

Main Methods:

• Four experiments utilized a simulated foraging task with baited and unbaited sites.
• Varying delay intervals (15 min, 4 hr) and baiting strategies were employed across experiments.
• An "informed forager" paradigm was used to test competitive interactions.

Main Results:

• Bears demonstrated poor accuracy in recovering food items with short delays and novel baiting.
• Accuracy did not improve even when one bear had prior knowledge in a competitive scenario.
• With consistent baiting locations and longer intervals (2-3 days over 20 days), group foraging accuracy approached above-chance levels.

Conclusions:

• Captive American black bears exhibit limitations in utilizing spatial memory for foraging under certain conditions.
• The study highlights the potential for spatial memory in bears over longer delays and with predictable resources.
• Findings suggest that environmental predictability may be a key factor influencing spatial memory performance in this species.