Results 51 to 60 of about 3,854 (155)

Levantamento da fauna de Abelhas silvestres (Hymenoptera, Apoidea) na região da "Baixada Maranhense": Vitória do Mearim, MA, Brasil [PDF]

open access: yesActa Amazonica, 2001
Estudou-se durante um ano a fauna de abelhas de uma região da Baixada maranhense em Vitória do Mearim — MA. Foram feitas coletas mensais com auxílio de redes entomológicas e armadilhas de cheiro, no período de um ano, totalizando 288 horas de amostragem.
Patrícia M.C. de ALBUQUERQUE   +4 more
doaj   +1 more source

Colletes kinabalu n. sp., first record of the genus for the Malay Archipelago and southeast Asia (Hymenoptera: Anthophila: Colletidae) [PDF]

open access: yes, 2014
A new species from Mt. Kinabalu, Borneo (Malaysia), Colletes kinabalu Kuhlmann, new species, is described and illustrated.  This is the first record of a species of Colletes from Southeast Asia and its biogeographical implications are ...
Kuhlmann, Michael
core   +2 more sources

Phylogenomics and biogeography of the cleptoparasitic bee genus Triepeolus Robertson (Hymenoptera: Apidae), with a revised subgeneric classification of Triepeolus and its sister genus, Epeolus Latreille Filogenómica y biogeografía del género de abejas cleptoparásitas Triepeolus Robertson (Hymenoptera: Apidae), con una clasificación subgenérica revisada para Triepeolus y su género hermano, Epeolus Latreille

open access: yesSystematic Entomology, Volume 51, Issue 1, January‐March 2026.
A subgeneric classification is proposed for Triepeolus—the second‐largest genus of cleptoparasitic apid bees in the world—and its sister genus Epeolus, with support from a newly presented dated phylogeny. Phylogenomic analysis based on ultraconserved elements revealed strong support for the monophyly of Triepeolus, which diverged from Epeolus sometime ...
Thomas M. Onuferko   +2 more
wiley   +1 more source

The floral hosts and distribution of a supposed creosote bush specialist, Colletes stepheni Timberlake (Hymenoptera: Colletidae) [PDF]

open access: yes, 2015
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

Mixed effects of urbanization on pollination services among four native plant species

open access: yesEcological Entomology, Volume 50, Issue 6, Page 1184-1195, December 2025.
We tested urbanization and fragmentation effects on pollination services using four native phytometer species that were deployed across 10 community gardens located in suburban and densely urbanized areas Landscape context generally did not influence pollination; however, for one of four phytometers (Lobelia siphilitica, pictured above) urban cover ...
Nicholas Sookhan   +2 more
wiley   +1 more source

Pollen exploitation by non‐native, feral honey bees: Potential consequences for interspecific competition

open access: yesInsect Conservation and Diversity, Volume 18, Issue 6, Page 1109-1119, November 2025.
In Southern California, a global hotspot of bee biodiversity, predominantly feral populations of the exotic western honey bee constitute an estimated 90% of individual bees and 98% of bee biomass. Honey bee foragers remove 80% of total pollen during the first day flowers open on three common native species, with their first two visits removing over 60%
Dillon J. Travis   +3 more
wiley   +1 more source

Biologia floral e heterostilia em Vismia guianensis (Aubl.) Choisy (Clusiaceae) Floral biology and heterostyly in Vismia guianensis (Aubl.) Choisy (Clusiaceae)

open access: yesActa Botânica Brasílica, 1998
Os estudos da biologia floral e reprodutiva e a caracterização da heterostilia em Vismia guianensis realizaram-se na Reserva Ecológica de Dois Irmãos, Recife, PE, entre novembro/1997 e fevereiro/ 1998. V.
Mary Janice Lima dos Santos   +1 more
doaj   +1 more source

Euryglossina (Euryglossina) perpusilla (Hymenoptera: Colletidae: Euryglossinae) nesting in pre-formed cavities in Banksia attenuata (Proteaceae) [PDF]

open access: yes, 2018
This article reports observations of nesting by Euryglossina (Euryglossina) perpusilla Cockerell, 1910 in preformed cavities in a Banksia attenuata tree in an urban bushland ...
Prendergast, Kit Stasia
core   +2 more sources

24 million years of pollination interaction between European linden flowers and bumble bees

open access: yesNew Phytologist, Volume 248, Issue 4, Page 2111-2127, November 2025.
Summary Pollination is the most common insect–plant mutualism, binding them in a co‐evolutionary framework. Historic evidence of this interaction can be partly inferred from time‐calibrated molecular phylogenies of plant and insect lineages or directly from fossils.
Christian Geier   +9 more
wiley   +1 more source

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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