Otter road casualties

TL;DRAbstract

<b>Abstract</b><br>
 Many otters (<em>Lutra lutra</em>) are killed on roads each year. At present, it is not possible to determine whether or not this has an impact on otter populations, whether they are declining, recovering or stable. New roads should be designed with the needs of otters in mind in areas which otters are likely to recolonise as well as those where they are already present. It is possible to reduce the number of otters being killed on existing roads by appropriate mitigation but this may be expensive and it is important to consider the costs as well as the benefits. Dead otters are a valuable resource for population studies and there is great value in collecting carcases for post mortem studies. It is also important to record the sites of all road deaths to inform priorities for mitigation.<br>
 <b>Riassunto</b><br>
 Incidenza del traffico veicolare sulla mortalità della Lontra. Molte lontre (<em>

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