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245	1	0	_aBee hotels host a high abundance of exotic bees in an urban context
490	0		_vActa Oecologica, 105, p.103556, 2020
520	3		_aBee 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 percent 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 study raises the question about the usefulness of bee hotels for the conservation of native bees especially within cities harbouring high abundance of exotic bees. We provide here concrete advices to land managers to build bee hotels that can both host native bees and prevent the installation of M. sculpturalis.
650	1	4	_aBEE HOTELS
650	1	4	_aNATIVE AND EXOTIC BEES
650	1	4	_aMEGACHILE SCULPTURALIS
700	1	2	_aGeslin, B.
700	1	2	_aGachet, S.
700	1	2	_aDeschamps-Cottin, M.
700	1	2	_aFlacher, F.
700	1	2	_aIgnace, B.
700	1	2	_aKnoploch, C.
700	1	2	_aLe Féon, V.
856	4	0	_uhttps://drive.google.com/file/d/1isgM-XU3mA_gs3iMwZFZN5PqOnwQ4QDM/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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