Results 21 to 30 of about 9,095 (137)

Exotic and predatory: a spider (Araneae: Salticidae) that preys on native stingless bees (Hymenoptera: Meliponini) in Brazil

Revista Chilena de Entomología, 2023
Pollination is a fundamental ecosystem service for the natural balance. Bees are the main biological agents for carrying out this service. It is known that the excessive simplification process of the landscape through anthropic action hinders the ...
Tércio Silva Melo, Antônio Domingos Brescovit, Favízia Freitas de Oliveira   +2 more
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Genetic variation in Turkish honeybees Apis mellifera anatoliaca, A. m. caucasica, A. m. meda (Hymenoptera: Apidae) inferred from RFLP analysis of three mtDNA regions (16S rDNA-COI-ND5)

European Journal of Entomology, 2012
In this study, the genetic structure of Turkish honey bee (Apis mellifera L.) populations, mainly obtained from the Central Anatolian region, were investigated at three different mitochondrial regions.
Fulya ÖZDIL, Ibrahim AYTEKIN, Fatma ILHAN, Saim BOZTEPE   +3 more
doaj   +1 more source

Sperm viability in the male accessory testes and female spermathecae of the bumblebee Bombus terrestris (Hymenoptera: Apidae)

European Journal of Entomology, 2008
In many species sperm competition selects for large ejaculates while females eliminate or disable a high percentage of the spermatozoa in their storage organs in order to control paternity.
Michael GREEFF, Paul SCHMID-HEMPEL
doaj   +1 more source

Bumblebee (Hymenoptera: Apidae) sample storage for a posteriori molecular studies: Interactions between sample storage and DNA-extraction techniques

European Journal of Entomology, 2013
A global decline in pollinator abundance and diversity has demanded increased research attention to the ecology and genetics of bumblebees. However, as progressively more restrictions are placed on sampling for insects, researchers are increasingly ...
António S. MOREIRA, Finbarr G. HORGAN, Tomás E. MURRAY, Thomais KAKOULI-DUARTE   +3 more
doaj   +1 more source

Pollen resources partitioning of stingless bees (Hymenoptera: Apidae) from the southern Atlantic forest

Acta Scientiarum: Biological Sciences, 2020
Meliponinae eusocial bees are among the most important pollinators in the Neotropics and their beekeeping has been growing as both recreational and economic activity. Information on the pollen preferences and niche overlap among species coexisting in the
Carina da Silva Rodrigues, Debora Cristina Ferasso, Altemir José Mossi, Geraldo Ceni Coelho   +3 more
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List of bee species (Hymenoptera, Apoidea) of Lviv city (Ukraine). Part I. Families Andrenidae Latreille, 1802 and Apidae Latreille, 1802

Біологічні студії, 2020
Background. The article presents the results of the research on bees (Hymenoptera, Apoidea) that occur in the city of Lviv. Bees are effective and important pollinators of many wild and agricultural angiosperm plants.
I. P. Skyrpan, S. R. Pytel
doaj   +1 more source

Distribution and pollination services of wild bees and hoverflies along an altitudinal gradient in mountain hay meadows

Ecology and Evolution, 2021
Extensively managed and flower‐rich mountain hay meadows, hotspots of Europe's biodiversity, are subject to environmental and climatic gradients linked to altitude.
Kevin Baumann, Julia Keune, Volkmar Wolters, Frank Jauker   +3 more
doaj   +1 more source

A survey of the bees (Hymenoptera: Apoidea) from Isfahan Province, Iran [PDF]

Journal of Insect Biodiversity and Systematics, 2019
In this survey, 154 bee species of Apoidea superfamily, from the western part of the Isfahan province, Iran were recorded, of which 29 species are new for the fauna of Iran.
Razieh Khodarahmi Ghahnavieh, Alireza Monfared   +1 more
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Bee pollination effects on yield and chemical composition of West Indian gherkin fruits (Cucumis anguria L., Cucurbitaceae) in the Brazilian semi-arid region [PDF]

Brazilian Journal of Biology
Animal pollination plays a key role in global agricultural production and especially of monoecious crops, which are essentially dependent on pollinators.
I. C. S. Magalhães, C. S. de Souza-Neto, G. T. de Souza, G. J. Baronio, C. C. de Castro   +4 more
doaj   +1 more source

L'activité de butinage des Apoides sauvages (Hymenoptera Apoidea) sur les fleurs de maïs à Yaounde (Cameroon) et réflexions sur la pollinisation des graminées tropicales [PDF]

Biotechnologie, Agronomie, Société et Environnement, 2002
The gatering activity of wild bees (Hymenoptera Apoidea) on flowers of maize at Yaound (Cameroon) and further considerations on pollination of the tropical Gramineae.
Tchuenguem-Fohouo F.N., Messi J., Pauly A.   +2 more
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