Results 11 to 20 of about 2,713 (200)

Multiple Key Hosts and Network Structure Shape Viral Prevalence Across Multispecies Communities of Bees. [PDF]

open access: yesEcol Lett
This study develops a quantitative framework that integrates field data, epidemiological models, simulations, and Bayesian inference to identify key viral hosts in multispecies bee communities. By estimating species‐specific R0 values from flower‐visitor networks and viral screening, we show that honeybees, as well as other wild bees, can drive the ...
Pluta P   +4 more
europepmc   +2 more sources

Barefoot Trees for Bees: Nesting Site Characteristics of the Ground-Nesting Bee <i>Andrena vaga</i> in an Urban Environment. [PDF]

open access: yesEcol Evol
Andrena vaga nesting sites were preferably located under canopy cover. The soils of the nesting sites were warmer and drier and showed less penetration resistance and vegetation cover compared to uncolonized control areas. Experimental bare ground plots located within control areas did not provoke colonization of Andrena vaga, assumingly due to social ...
Gardein H   +3 more
europepmc   +2 more sources

A new species of the genus Colletes Latreille, 1802 (Hymenoptera: Colletidae) from Azerbaijan [PDF]

open access: yesКавказский энтомологический бюллетень, 2015
Colletes dlusskyi sp.  n. is described and illustrated from Azerbaijan (Nakhchivan Autonomous Republic).
M. Kuhlmann, M.Yu. Proshchalykin
doaj   +1 more source

Taxonomic revision of the southern African Colletes fasciatus species group (Hymenoptera: Colletidae)

open access: yesEuropean Journal of Taxonomy, 2023
Fourteen new species of the Colletes fasciatus species group are described, all of them endemic to the winter rainfall area in South Africa: C. ascopalis sp. nov. ♀, C. carolinae sp. nov. ♀♂, C. cedarbergensis sp. nov. ♀, C. fabiani sp. nov.
Tina Zabel, Michael Kuhlmann
doaj   +1 more source

New and little-known bees of the genus Colletes Latreille, 1802 (Hymenoptera, Colletidae) from the Nakhchivan Autonomous Republic of Azerbaijan, with descriptions of two new species [PDF]

open access: yesZooKeys
Data on 14 species of the genus Colletes Latreille, 1802 collected in the Nakhchivan Autonomous Republic of Azerbaijan in 2018–2025 are provided. Among them, Colletes perplexus sp. nov. is described as new to science. Colletes caskanus (Strand, 1919), C.
Michael Kuhlmann   +2 more
doaj   +3 more sources

A new species of Colletes (Hymenoptera: Apoidea: Colletidae) from northern Florida and Georgia, with notes on the Colletes of those states [PDF]

open access: yes, 2016
Colletes ultravalidus Hall & Ascher, new species, is described from several sites in northwestern Florida and southeastern Georgia.  It is a member of the inaequalis species group, very similar to C.
Almquist, David T   +2 more
core   +2 more sources

Narrow flower specialization in two European bee species of the genus Colletes (Hymenoptera: Apoidea: Colletidae)

open access: yesEuropean Journal of Entomology, 2003
Colletes anchusae Noskiewicz, 1924 and C. wolfi Kuhlmann, 1999 (Colletidae) are closely related bee species with vicariant distributions, the former occurring in east and southeast Europe and Turkey, the latter restricted to the Italian peninsula ...
Andreas MÜLLER, Michael KUHLMANN
doaj   +1 more source

A record of bilateral gynandromorphism in Epeolus (Hymenoptera: Apidae: Nomadinae) [PDF]

open access: yes, 2018
The discovery of a gynandromorph of a North American Epeolus Latreille is reported. A specimen of E. flavofasciatus Smith from Flagstaff, Arizona, USA discovered in the collection of the American Museum of Natural History (AMNH) exhibits male-specific ...
Onuferko, Thomas M
core   +2 more sources

Plants, Pollinators and Pheromones: Promises and Lies of Semiochemicals. [PDF]

open access: yesPlant Cell Environ
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

Extinctions of aculeate pollinators in Britain and the role of large-scale agricultural changes [PDF]

open access: yes, 2014
Pollinators are fundamental to maintaining both biodiversity and agricultural productivity, but habitat destruction, loss of flower resources, and increased use of pesticides are causing declines in their abundance and diversity. Using historical records
Biesmeijer   +8 more
core   +1 more source

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