Journal
APIDOLOGIE
Volume 36, Issue 4, Pages 613-621Publisher
SPRINGER FRANCE
DOI: 10.1051/apido:2005046
Keywords
BACI; competition; Apis mellifera; Megachile; resource overlap; introduced species
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The European honey bee was introduced to Australia 180 years ago and feral populations now occupy most coastal environments. Although much debate has taken place regarding the possible impact of honey bees on Australian native bees, there has been little direct research. This study presents the results of a replicated Before-After Control-Impact (BACI) experiment simulating the putative impact of feral honey bees on an undescribed species of Australian solitary bee (Megachile sp. M323/F367). Although a large resource overlap occurred between the two species, there was no significant change in the reproductive success of the native bee. The realised precision of the experiment was assessed and showed appropriate sensitivity for three important reproductive variables. The native bee, being better adapted to the high summer temperatures experienced during the period of this experiment, may be able to withstand honey bee competition.
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