Results 21 to 30 of about 1,283 (182)

A revision of the cleptoparasitic bee genus Coelioxys (Hymenoptera: Megachilidae) from Australia

open access: yesEuropean Journal of Entomology, 2016
The Australian species of the genus Coelioxys Latreille are revised. Six species are recognized: Coelioxys albolineata Cockerell, 1905; Coelioxys froggatti Cockerell, 1911; Coelioxys reginae Cockerell, 1905; Coelioxys weinlandi Schulz, 1904 and two new ...
Léo Correia da ROCHA-FILHO
doaj   +1 more source

Primer registro de la abeja colectora de óleo Centris (Odontoxys) melanochlaena Smith, 1874 (Hymenoptera, Apidae) en Nicaragua

open access: yesRevista Peruana de Biología, 2023
Se presenta el primer reporte de la abeja colectora de óleo Centris (Odontoxys) melanochlaena Smith, 1874 en Nicaragua. Esta especie se distribuye en varios países de Centroamérica y México, siendo este el primer reporte en el occidente de Nicaragua ...
Conrado Ronaldo Quiroz-Medina   +1 more
doaj  

Ecological and seasonal patterns in the diversity of a species-rich bee assemblage (Hymenoptera: Apoidea: Apiformes)

open access: yesEuropean Journal of Entomology, 2005
Meaningful ecological studies on insect communities require sampling protocols that take into consideration temporal fluctuations in abundance and species composition. Bees with their specific requirements for nutrition and nesting are good indicators of
Sabine OERTLI   +2 more
doaj   +1 more source

Cocoon morphology of Bicyrtes variegatus (Oliver, 1789) (Hymenoptera: Crabronidae), with notes on habitat and biological interactions

open access: yesRevista Chilena de Entomología, 2021
A morphological study on the cocoon of Bicyrtes variegatus (Oliver, 1789) is presented based on specimens collected in Center-West Brazil. Notes on nesting habitat is provided.
Sandor Christiano Buys   +1 more
doaj   +1 more source

Diversity and Evolution of pogo and Tc1/mariner Transposons in the Apoidea Genomes

open access: yesBiology, 2021
Bees (Apoidea), the largest and most crucial radiation of pollinators, play a vital role in the ecosystem balance. Transposons are widely distributed in nature and are important drivers of species diversity.
Yibing Liu   +7 more
doaj   +1 more source

Contribution to Bee Fauna (Hymenoptera: Apoidea: Anthophila) of Poland. VI. The Genus Andrena Fabricius, 1775. PART 2

open access: yesJournal of Apicultural Science, 2018
The paper presents new records of the following six very rare or scarcely recorded species of short-tongued bees of the genus Andrena Fabricius, 1775 in Poland: A. (Simandrena) congruens Schmiedeknecht, 1883; A.
Wiśniowski Bogdan   +3 more
doaj   +1 more source

Are Botanical Biopesticides Safe for Bees (Hymenoptera, Apoidea)?

open access: yesInsects, 2023
The recent global decline in insect populations is of particular concern for pollinators. Wild and managed bees (Hymenoptera, Apoidea) are of primary environmental and economic importance because of their role in pollinating cultivated and wild plants, and synthetic pesticides are among the major factors contributing to their decline.
Roberto Catania   +5 more
openaire   +5 more sources

Forest edges buffer effects of agricultural management on bee–plant interaction networks

open access: yesEcological Entomology, EarlyView.
Agricultural management effects: Organic and conventional crop margins host similar bee and plant species, but network structure differs: organic farms exhibit higher interaction diversity, conventional farms higher connectance. Role of forest edges: Native forest edges stabilize bee–plant networks by providing continuous floral resources and suitable ...
Samantha Marx de Castro   +6 more
wiley   +1 more source

Influence of elevation, climate, snowmelt and floral abundance on body size of solitary bees

open access: yesEcological Entomology, EarlyView.
We measured body size in bee species from a 10‐year specimen collection from Colorado sub‐alpine meadows (2450–3450 m) and tested effects of elevation and annual snowmelt, climate and floral abundance. 2 out of 4 bee species collected across a broad elevation range showed a decline in body size with higher elevations; the other two showed no effect ...
Lachlan C. Jones   +5 more
wiley   +1 more source

Catálogo de los Megachilidae del Mediterráneo occidental (Hymenoptera, Apoidea). I. Osmiini

open access: yesGraellsia, 2006
El catálogo objeto de este trabajo es una primera entrega de una serie de tres que los autores han realizado sobre la familia Megachilidae en el área mediterránea occidental, como base de la revisión que se está llevando a cabo sobre los megaquílidos ...
C. Ornosa   +2 more
doaj   +1 more source

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