Los Colletidae de la Sierra de Guadarrama (Hymenoptera, Apoidea)
Tras el estudio de diversas colecciones entomológicas y la revisión de bibliografía de referencia, los autores estiman que la fauna de colétidos de la Sierra de Guadarrama (centro de la Península Ibérica) está compuesta por 42 especies (31 pertenecientes
F. J. Ortiz-Sánchez, C. Ornosa
doaj +1 more source
Four new species of Isepeolini (Hymenoptera; Apidae) from northern Chile
Background Cleptoparasitic bees are less commonly collected than their hosts and often more difficult to identify and additional descriptions and treatment of diagnostic characteristics are needed.
Laurence Packer, Liam Graham
doaj +1 more source
The floral hosts and distribution of a supposed creosote bush specialist, Colletes stepheni Timberlake (Hymenoptera: Colletidae) [PDF]
Colletes stepheni Timberlake, previously thought to be a narrow oligolege of Larrea (creosote bush) of limited distribution in the Sonoran Desert, is found to be a much more widely distributed psammophile of the Sonoran, Mojave and Great Basin Deserts ...
Griswold, Terry L, Nelson, Rebekah A.
core +2 more sources
A armadilha contratual (Durkheim)
Neste artigo desenvolvemos a interpretação durkheimeana da divisão do trabalho social como solidariedade orgânica e contratual. Examinamos alguns aspectos que essa análise nos apresenta, de um lado, pela caracterização de um tipo de sociedade industrial ...
Maria Valderez de Colletes Negreiros
doaj +1 more source
Plants, Pollinators and Pheromones: Promises and Lies of Semiochemicals. [PDF]
ABSTRACT Pollination is traditionally regarded as a quintessential mutualism, yet many plants employ deceptive strategies to achieve reproductive success. Among the most intriguing is sexual deception, wherein flowers mimic the sex pheromones and visual signals of female insects to attract male pollinators—without providing any reward.
Slavković F, Bendahmane A.
europepmc +2 more sources
Revision of the South African endemic bee genus Redivivoides Michener, 1981 (Hymenoptera: Apoidea: Melittidae) [PDF]
The South African endemic bee genus Redivivoides Michener, 1981 is revised and redefined. The genus comprises seven species, six of which are described here as new: Redivivoides capensis sp. nov. ♀♂, R. eardleyi sp. nov. ♀, R. kamieskroonensis sp. nov. ♀,
Kuhlmann, Michael
core +5 more sources
Diversity of insect pollinators with reference to their impact on yield production of canola (Brassica napus L.) in Ismailia, Egypt [PDF]
A study of insect pollinators and their impact on canola yield was conducted during the 2013/2014 and 2014/2015 growing seasons. The study was carried out at an experimental farm, Faculty of Agriculture, Suez Canal University, Ismailia.
Soliman M. Kamel +4 more
doaj +1 more source
Diversity of Flower-visiting Bees and their Pollen Loads on a Wildflower Seed Farm in Montana [PDF]
During a two-year survey on a wildflower seed farm in southcentral Montana, we collected ∼50 species of bees from 18 genera in sweep samples on cultivated wildflowers and weeds.
Blodgett, Sue +4 more
core +3 more sources
Most bee species are ground-nesters, yet knowledge on the nesting behaviour of this diverse group remains sparse. Evidence on the effectiveness of ground-nesting bee species as crop pollinators is growing, but there is limited information on their ...
Konstantinos Tsiolis +6 more
doaj +1 more source
The First Draft Genome of the Plasterer Bee Colletes gigas (Hymenoptera: Colletidae: Colletes)
Despite intense interest in bees, no genomes are available for the bee family Colletidae. Colletes gigas, one of the largest species of the genus Colletes in the world, is an ideal candidate to fill this gap. Endemic to China, C. gigas has been the focus
Qing-Song Zhou +7 more
semanticscholar +1 more source

