| Titre : | Does rock climbing threaten cliff biodiversity? - A critical review |
| Auteurs : | Andrea Holzschuh, Auteur |
| Type de document : | Article |
| Dans : | Biological Conservation (204 DEC 2016) |
| Article en page(s) : | 153-162 |
| Langues: | Anglais |
| Résumé : | Rock climbing has increased in popularity over the past 20 years. Meanwhile, there have been increasing calls for restrictions on rock climbing due to concerns about the impact of climbing on cliff biodiversity. However, the biological impacts of rock climbing are still not well understood. Here, I review the existing literature to assess the impact of rock climbing on cliff biodiversity. The majority of published results may be confounded by systematic abiotic differences between climbed and unclimbed cliffs, and this lack of proper controls may lead to the overestimation of the negative effects of rock climbing on biodiversity. Evidence for the impact of rock climbing on biodiversity is inconclusive for most taxa. Studies on lichens and vascular plants have described evidence for negative, positive and no effects of rock climbing. Snail biodiversity was found to be negatively affected, while reliable evidence of the impacts of rock climbing on birds is still lacking. Bryophytes were generally unaffected by rock climbing. Further research is urgently needed, because the mixed results of the existing studies do not allow final conclusions how rock climbing affects the cliff biota. Future studies should select comparable controls for biodiversity comparison, widen the focus to further cliff-associated taxa, and investigate how climbing effects vary with climbing intensity. Such studies would facilitate the improved management of rock climbing areas that are rich in biodiversity and contain rare and threatened species. (C) 2016 Elsevier Ltd. All rights reserved. |
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