What weather conditions affect black bear movement and activity?

Weather Influencing Factors

In Saskatchewan, black bears are more active during periods of moderate temperatures, typically between 10°C to 20°C (50°F to 68°F). During warm days, bears are more likely to move in search of water sources, food, and suitable habitats. Research suggests that black bears tend to be more active during the morning and evening hours when temperatures are cooler.

Impact of Environmental Conditions

Rainfall is another significant factor affecting black bear movement. Light to moderate rainfall, around 5-10 mm (0.2-0.4 in), can stimulate bears to move in search of food sources. On the other hand, heavy rainfall can cause bears to seek shelter and reduce their activity. In contrast, dry conditions with high humidity can lead to bears becoming lethargic and less active.

Wind and Other Factors

Strong winds, typically above 30 km/h (19 mph), can also impact black bear movement. In such conditions, bears tend to seek shelter and reduce their activity levels. Additionally, the presence of snow cover can affect bear movement, with some studies suggesting that bears may move more during periods of low snow cover or when snow is relatively shallow, around 10-20 cm (4-8 in).