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Comparative ecology of two specialist bees: Dasypoda visnaga Rossi, 1790 and Dasypoda maura Pérez, 1895 (Hymenoptera, Melittidae)
Journal of Hymenoptera Research ( IF 1.3 ) Pub Date : 2021-02-25 , DOI: 10.3897/jhr.81.60528
Insafe El Abdouni , Patrick Lhomme , Laila Hamroud , Thomas Wood , Stefanie Christmann , Pierre Rasmont , Denis Michez

Many wild bee species are declining globally. To design efficient mitigation strategies to slow down or reverse these trends, we urgently need to better understand their basic ecological requirements. In this context, we studied two specialist species for which ecological data are scarce: Dasypoda visnaga and Dasypoda maura. We provide for the first-time detailed information on their phenologies, morphological traits, floral preferences, and nesting behaviours based on historical data and new samples from Morocco. The flight season of both species extends from late spring to late summer but D. maura emerges earlier than D. visnaga. Though the two species show different morphological traits, palynological analyses show that D. visnaga and D. maura females collect almost exclusively pollen from Scolymus sp. (Asteraceae). Concerning their nesting behaviour, D. visnaga seems to be more gregarious than D. maura. Both species build nests in sandy soil that can reach a depth of 80 cm. These ecological observations show that the differences between D. visnaga and D. maura are minor with regards to habitat requirements.

中文翻译:

两种专蜂的比较生态学:1790年的达西波达·维斯纳加·罗西(Dasypoda visnaga Rossi)和1895年的/达西波达·毛拉·佩雷斯(Dasypoda mauraPérez)(膜翅目,Mel科)

全球许多野生蜂种在减少。为了设计有效的缓解策略以减缓或逆转这些趋势,我们迫切需要更好地了解其基本生态要求。在这种情况下,我们研究了生态数据稀缺的两个专长物种:大叶蝉(Dasypoda visnaga)和大孢子菊(Dasypoda maura)。我们根据历史数据和来自摩洛哥的新样本,首次提供有关它们的物候,形态特征,花卉偏好和筑巢行为的详细信息。这两个物种的飞行季节都从春末到夏末,但毛毛虫的出现要早于维斯纳加虫的出现。尽管这两个物种表现出不同的形态特征,但孢粉学分析表明,维氏梭母和毛ma雌性雌虫几乎只从Scolymus sp。收集花粉。(菊科)。关于它们的筑巢行为,维纳斯D. visnaga似乎比毛拉D. maura更合群。两种物种都在可达到80厘米深度的沙质土壤中筑巢。这些生态学观察表明,就栖息地需求而言,维氏假丝酵母和毛状假丝酵母之间的差异很小。
更新日期:2021-02-25
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