SOME CARPENTER-BEES FROM AFRICA
نویسندگان
چکیده
منابع مشابه
Nectar-Robbing Carpenter Bees Reduce Seed-Setting Capability of Honey Bees (Hymenoptera: Apidae) in Rabbiteye Blueberry, Vaccinium ashei, ‘Climax’
Thecarpenterbee,Xylocopavirginica(L.), acts as aprimarynectar thief in southeastern plantations of native rabbiteye blueberry, Vaccinium ashei Reade, perforating corollae laterally to imbibe nectar. Honey bees, Apis mellifera L., learn to collect nectar from these perforations and thus become secondary thieves. We conducted a 2-yr study to assess how nectar robbing in honey bees affects fruit p...
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In a 2000 field study in which mature plants, potted pollenizers, and 0-12800 honey bees were tented together, honey bees were shown to effectively pollinate rabbiteye blueberry, variety “Climax.” There was a consistent and significant increase in fruit-set and number of seeds as bee numbers increased within the range of 0-6400 bees. In conference, the authors will present results of a 2001 fie...
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While our conceptual understanding of emotions is largely based on human subjective experiences, research in comparative cognition has shown growing interest in the existence and identification of "emotion-like" states in non-human animals. There is still ongoing debate about the nature of emotions in animals (especially invertebrates), and certainly their existence and the existence of certain...
متن کاملAllometry of kinematics and energetics in carpenter bees (Xylocopa varipuncta) hovering in variable-density gases.
We assessed the energetic and aerodynamic limits of hovering flight in the carpenter bee Xylocopa varipuncta. Using normoxic, variable-density mixtures of O(2), N(2) and He, we were able to elicit maximal hovering performance and aerodynamic failure in the majority of bees sampled. Bees were not isometric regarding thorax mass and wing area, both of which were disproportionately lower in heavie...
متن کاملMolecular phylogeny and historical biogeography of the large carpenter bees, genus Xylocopa (Hymenoptera: Apidae)
The biogeographical history of major groups of bees with worldwide distributions have often been explained through hypotheses based on Gondwanan vicariance or long distance dispersal events, but until recently these hypotheses have been very difficult, if not impossible, to distinguish. New fossil data, comprehensive information on Mesozoic and Cenozoic coastline positions and the availability ...
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ژورنال
عنوان ژورنال: The Canadian Entomologist
سال: 1906
ISSN: 0008-347X,1918-3240
DOI: 10.4039/ent38364-11