| Titre : | Losses of birds and mammals on a section of the Highway 8 (Bavaria) in course of season and route |
| Auteurs : | Christian Fackelmann, Auteur |
| Type de document : | Article |
| Dans : | Ornithologischer Anzeiger (51(1) AUG 2012) |
| Article en page(s) : | 1-20 |
| Résumé : | Mortality of birds and mammals was monitored over a period of one and a half years on a 43 km long section of the Highway 8 between Munich and Augsburg (Bavaria). Controls were made from the driving car. A total of 403 road casualties were noticed. Out of this 52 % were mammals, 36 % were birds and 12 % remained unidentified. 11 species each of mammals and birds could be determined.Small birds and mammals are under represented because of the registration method. On average 6,2 road-kills per km and year were found. The common buzzard Buteo buteo was the most affected species with 59 recorded victims. Other species with high numbers recorded were owls Strigiformes (especially Long-eared Owl Asia otus), red fox Vulpes vulpes, marten Martes foina, hedgehog Erinaceus europaeus, domestic cat Felis silvestris f. catus and brown hare Lepus europaeus.A large number of scavengers and carrion eaters are killed in winter, while attracted by carcasses lying on the verge, on or between the roads. Buzzards, foxes, domestic cats, badgers Meles meles and hedgehogs are the most affected subsequent victims.The height of the death rate depends on the degree of mobility, the size of activity range, adaptability and special features in the habits of the respective species. Of crucial influence is also the traffic density, speed of the cars, the population density, the arrangement of the verges, the clearness of the terrain and the weather.Road traffic is one of the most important factors for the death of birds and mammals through unnatural causes. The yearly mortality on the German road net can be estimated in a two-digit Million area. A nation-wide monitoring to clarify the long-term effects of the populations is suggested.Accident-centres and -causes for the most affected species are discussed and possibilities to reduce the high numbers are shown. |
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