作者
Benoît Geslin, Sophie Gachet, Magali Deschamps-Cottin, Floriane Flacher, Benjamin Ignace, Corentin Knoploch, Éric Meineri, Christine Robles, Lise Ropars, Lucie Schurr, Violette Le Féon
发表日期
2020/5/1
期刊
Acta Oecologica
卷号
105
页码范围
103556
出版商
Elsevier Masson
简介
Bee hotels are increasingly set up by land managers in public parks to promote wild bee populations. However, we have very little evidence of the usefulness of bee hotels as tools to help the conservation of wild bees within cities. In this study, we installed 96 bee hotels in public parks of Marseille (France) for a year and followed their use as a nesting substrate by the local fauna. The most abundant species that emerged from bee hotels was the exotic bee species Megachile sculpturalis, representing 40% of all individuals. Moreover, we only detected four native bee species all belonging to the Osmia genus. More worryingly, we found a negative correlation between the occurrence of M. sculpturalis in bee hotels and the presence of native bees. One hypothesis to explain this result might be linked to the described territorial and aggressive behaviour of M. sculpturalis toward the nests built by the native fauna. This …
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B Geslin, S Gachet, M Deschamps-Cottin, F Flacher… - Acta Oecologica, 2020