Brown bear - Ursus arctos

Brown bear facts

Size
Males 140 – 320 kg
Females 100 – 200 kg

Reproduction
Mating: May - July
Birth: January - February
Litter size: 1-4, normally 2-3

Diet
Omnivorous.
Berries, nuts, ants, green vegetation, carcasses and young of wild ungulates, livestock, honey

Social organisation
Solitary.
Recent evidence indicates complex structure among related females.

Home ranges
Vary from 120 to 1600 km2 for males and 60 to 300 km2 for females.


Brown bear. Photo © Stafan Widstrand

Threats:     

(1) Some populations are very small and isolated. It is unsure if these are viable in the long term from the points of view of both numbers and genetics. Population supplementation may be necesary - for example like in the French Pyrenees.

(2) In many parts of the large populations bears are harvested by hunters or subjected to lethal control as a conflict prevention strategy. In these areas it is important that quotas are kept within the limits of sustainability.

(3) Depredation on livestock is common throughout Europe. Effective mitigation measures need to be encouraged and applied wherever bears occur.

(4) In many places roads are being built through bear habitat, which can fragment populations and increase mortality. There is also an increase in energy infrastructure (especially windparks) being built in bear habitat. It is important that new infrastructure development takes wide ranging species into account and incorporate mitigation structures (tunnels, green bridges) and sensitive habitats into their plans. 

 

Distribution:

Distribution maps 2012-2016 available from Data Dryad and 2017-2022/23 available from Data Dryad.

Status:
20.400 in Europe (Source: LCIE Status Assessment 2017-2022/23)
10 populations

Population name

Countries

Size

(2017-2022/23)

Trend

Scandinavian

Norway, Sweden

3000

Stable

Karelian

Norway, Finland

2175

Increase

Baltic

Estonia, Latvia

1090

Increase

Carpathian

Romania, Poland, Slovakia, Serbia

9000

Increase

Dinaric-Pindos

Slovenia, Croatia, Bosnia & Herzegovina, Montenegro, North Macedonia, Kosovo*, Albania, Serbia, Greece

4112

Stable

Alpine

Italy, Switzerland, Austria, Slovenia

100

Increase

Eastern Balkan

Bulgaria, Greece, Serbia

460

Stable

Central Apennine

Italy

50

Stable

Cantabrian

Spain

324

Increase

Pyrenean

France, Spain

86

Increase