Results 61 to 70 of about 105 (96)
Some of the next articles are maybe not open access.
The Science of Nature, 2020
To determine how males of the large carpenter bee, Xylocopa appendiculata, maximize access to females while minimizing energy cost and acquiring energy for territorial flights, we investigated the times of territorial flights by males and foraging by males and females. Males were present continuously in territories from 8:00 to 12:00.
Ken Sasaki, Kenta Goto, Ken-ichi Harano
openaire +2 more sources
To determine how males of the large carpenter bee, Xylocopa appendiculata, maximize access to females while minimizing energy cost and acquiring energy for territorial flights, we investigated the times of territorial flights by males and foraging by males and females. Males were present continuously in territories from 8:00 to 12:00.
Ken Sasaki, Kenta Goto, Ken-ichi Harano
openaire +2 more sources
Comparative morphology of the mesosomal ‘gland’ in male large carpenter bees (Apidae: Xylocopini)
Biological Journal of the Linnean Society, 1994The gross morphology of the reservoir of the mesosomal gland of male large carpenter bees (tribe Xylocopini) was examined in 46 taxa (species and subspecies) in the three genera of the tribe. Males of all but six species of Xylocopa examined possess a cuticle-lined invagination that originates along the suture between the metanotum and propodeum.
openaire +1 more source
Body Size and Shape of the Large Carpenter Bee, Xylocopa virginica (L.) (Hymenoptera: Apidae)
Journal of the Kansas Entomological Society, 2009In bees, both body size and shape may show considerable variation associated with differences between females and males, among populations, and due to local environmental variation. We studied multiple parameters of body size and shape of the large carpenter bee Xylocopa virginica, to understand how body size and shape are influenced by sex, and by ...
Dimitri A. Skandalis +3 more
openaire +1 more source
Molecular Phylogenetics and Evolution, 2000
Carpenter bees, genus Xylocopa Latreille, a group of bees found on all continents, are of particular interest to behavioral ecologists because of their utility for studies of the evolution of mating strategies and sociality. This paper presents phylogenetic analyses based on sequences of two mitochondrial genes cytochrome oxidase 1 and cytochrome b for
R, Leys, S J, Cooper, M P, Schwarz
openaire +2 more sources
Carpenter bees, genus Xylocopa Latreille, a group of bees found on all continents, are of particular interest to behavioral ecologists because of their utility for studies of the evolution of mating strategies and sociality. This paper presents phylogenetic analyses based on sequences of two mitochondrial genes cytochrome oxidase 1 and cytochrome b for
R, Leys, S J, Cooper, M P, Schwarz
openaire +2 more sources
Naturwissenschaften, 2013
The reproductive roles of dopamine and dopamine regulation systems are known in social hymenopterans, but the knowledge on the regulation systems in solitary species is still needed. To test the possibility that juvenile hormone (JH) and brain dopamine interact to trigger territorial flight behavior in males of a solitary bee species, the effects on ...
Ken, Sasaki, Takashi, Nagao
openaire +2 more sources
The reproductive roles of dopamine and dopamine regulation systems are known in social hymenopterans, but the knowledge on the regulation systems in solitary species is still needed. To test the possibility that juvenile hormone (JH) and brain dopamine interact to trigger territorial flight behavior in males of a solitary bee species, the effects on ...
Ken, Sasaki, Takashi, Nagao
openaire +2 more sources
2022
Desertification is a major threat to biodiversity in arid areas of the world, in part because many organisms in these regions are already existing at or near the limits of their movement and physiology. Here, we used molecular data to investigate patterns of persistence and dispersal in an ecologically and economically important carpenter bee (Xylocopa
Sandara N R Brasil-Peixoto +5 more
openaire +1 more source
Desertification is a major threat to biodiversity in arid areas of the world, in part because many organisms in these regions are already existing at or near the limits of their movement and physiology. Here, we used molecular data to investigate patterns of persistence and dispersal in an ecologically and economically important carpenter bee (Xylocopa
Sandara N R Brasil-Peixoto +5 more
openaire +1 more source
Mortality, Sex Ratio and Fecundity in Natural Populations of Large Carpenter Bees (Xylocopa Spp.)
The Journal of Animal Ecology, 1983SUMMARY (1) Data on the sex ratio, fecundity, mortality caused by predators, parasites and unknown factors (probably mostly excessive dampness or dryness in the larval cell) and the availability of nesting substrates obtained by an extensive sampling method for fifteen Xylocopa species are analysed and discussed.
openaire +1 more source
Canadian Journal of Zoology, 2011
We studied climatic correlates of the geographic range of a common large carpenter bee ( Xylocopa virginica (L., 1771)), which reaches farther north than any other Xylocopa in North America. Computational models of the species’ range predicted that summer and winter temperatures limit its northern extent, whereas summer precipitation limits its western
Dimitri A. Skandalis +3 more
openaire +1 more source
We studied climatic correlates of the geographic range of a common large carpenter bee ( Xylocopa virginica (L., 1771)), which reaches farther north than any other Xylocopa in North America. Computational models of the species’ range predicted that summer and winter temperatures limit its northern extent, whereas summer precipitation limits its western
Dimitri A. Skandalis +3 more
openaire +1 more source
Apidologie
Fil: Lucia, Mariano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo.
M. Cecilia Estravis-Barcala +4 more
openaire +2 more sources
Fil: Lucia, Mariano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo.
M. Cecilia Estravis-Barcala +4 more
openaire +2 more sources
Large carpenter bees as key pollinators of gliricidia sepium
Indian Journal of Entomology, 2020Rameshkumar Anandhan +2 more
openaire +1 more source