Mountain forest bumblebee
| Mountain forest bumblebee | ||||||||||||
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Bergwaldhummel ( Bombus wurflenii ) |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Bombus wurflenii | ||||||||||||
| Radoszkowski , 1859 |
The Bergwaldhummel ( Bombus wurflenii ) is a kind of the bumblebees ( Bombus ).
description
The queen has black tousled hair and an orange abdomen. The workers look the same or have a suggested yellow collar. They are significantly smaller than the queen. The males have a yellow collar and a yellow snout, otherwise they resemble the workers. These bumblebees have a particularly short trunk and strong jaws.
Occurrence
The mountain forest bumblebee is a species that occurs in high and low mountain ranges. Their distribution area extends from the Pyrenees to the Urals and to Fennoscandia . In the Alps it can be found up to an altitude of 2600 meters. In Baden-Württemberg there are deposits in the Black Forest and on the Swabian Alb, occasionally in the foothills of the Alps and very occasionally in the lowlands. In Germany, the border between the low mountain ranges and the north German lowlands is probably the northern limit of distribution.
Mountain forests and mountain meadows near forests are the focus of the settlement. It can also be found on fallow sheep pastures (juniper heaths) and mountain heaths. In the high mountains it rises above the tree line.
Way of life
The nests are usually created underground at different depths, for example under dwarf shrubs or in abandoned mouse nests. Bombus wurflenii is a nest owner and pollen storer . The peoples are rich in individuals. The species is considered to be easily irritable.
The mountain forest bumblebee is polylectic , that is, it goes to the flowers of many different plant species. It only forms one generation per year ( univoltin ). The females overwinter. They appear in spring from mid-April. Young females and males appear in July.
Systematics
The subspecies Bombus wurflenii subsp. mastrucatus (Gerstäcker) is boreo-montane and has a disjoint distribution area, which includes the Alps, the Central European low mountain ranges, the Tatra Mountains , the Carpathians and the Balkans.
Danger
In Baden-Württemberg, the mountain forest bumblebee is on the decline and endangered due to the reforestation with spruce, natural reforestation and the intensification of agriculture.
Web links
- Bombus wurflenii in Fauna Europaea