Straßenverkehr und Hummeln - eine erste Bilanz.
DOI:
https://doi.org/10.21248/contrib.entomol.39.1.181-187Abstract
After an inquiry of four years it is visible, that traffic is entailing a decrease of buble-bee-pupulations of the most species. The abundance and the number of species is declining in all cases. On a comparing area the decrease is not so great. Some protective measures are suggested.
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Published
1989-12-30
How to Cite
Donath, H. 1989: Straßenverkehr und Hummeln - eine erste Bilanz. - Contributions to Entomology = Beiträge Zur Entomologie 39(1): 181–187 - doi: 10.21248/contrib.entomol.39.1.181-187