Results 161 to 170 of about 89,687 (290)

Synergistic effect of honeybees and wild floral visitors in promoting sweet cherry fruit set in central Chile

open access: yesBiological Research
Background Recent evidence highlights the key role of wild insects as pollinators in agroecosystems, enhancing fruit set in crops such as sweet cherry (Prunus avium). In Chile, the contribution of wild insects to crop yield remains poorly understood, and
Camila B. García   +6 more
doaj   +1 more source

The Welsh dark bee (Apis mellifera mellifera) is not extinct

open access: yes, 2019
Due to past and present imports of Apis mellifera ligustica (Italian bees), Apis mellifera carnica (Carniolan bees) and the English Buckfast bee (a hybrid strain) across its entire natural range, Apis mellifera mellifera is now threatened with extinction by genetic pollution through hybridization. Whilst the status of remnant A. m.
Elen, Dylan   +4 more
openaire   +1 more source

Comparação dos níveis de introgressão da linhagem C na abelha negra (Apis mellifera mellifera) estimados usando microsatélites e SNPs seleccionados pelo critério de proximidade

open access: yes, 2014
Na Europa estão presentes duas linhagens de Apis mellifera: linhagem C na parte central e oriental e M na ocidental. A linhagem C agrupa cerca de 10 subespécies, entre as quais se encontram as duas mais utilizadas pela apicultura à escala mundial: a A. m.
Jara, Laura   +5 more
core  

Colony‐level pollen collection reflects visitation of managed bumble bees (Bombus impatiens) in strawberry fields and surrounding landscapes without reducing pollen limitation

open access: yesAgricultural and Forest Entomology, Volume 28, Issue 4, Page 636-647, November 2026.
We extracted pollen from colony beeswax to quantify season‐long, colony‐level resource use and tested how managed Bombus impatiens visitation and Rosaceae pollen collection relate to landscape context and strawberry pollination. Increased managed bumble bee visitation was not influenced by surrounding landcover, did not reduce pollen limitation and ...
Leeah I. Richardson   +6 more
wiley   +1 more source

Spatial and seasonal patterns of potential orchard pollinators across a Lake Ontario gradient

open access: yesAgricultural and Forest Entomology, Volume 28, Issue 4, Page 658-663, November 2026.
Potential pollinator captures varied by season, trap height and distance from Lake Ontario, indicating that flower visitors were not evenly distributed during apple bloom. Several common bee genera, including Lasioglossum, Agapostemon, Andrena and Apis, overlapped more closely with apple bloom than the dominant retained fly genus, Toxomerus.
Joe Armstrong   +2 more
wiley   +1 more source

Apis mellifera LINNAEUS 1758

open access: yes, 2011
Apis mellifera LINNAEUS 1758 In verschiedenen Unterarten oder Rassen ursprünglich über die Westpaläarktis und Äthiopis verbreitet, in den USA im Jahr 1622 in Newport eingeführt. Die Ausbreitung in Nordamerika ist bei RUTTNER (2003: 47) instruktiv dargestellt.
openaire   +2 more sources

Flower Visitation, Floral Traits, and Reproduction of Nicotiana glauca (Solanaceae) in an Urban Landscape

open access: yesBiotropica, Volume 58, Issue 6, November 2026.
Across a heterogeneous urban landscape in the high tropical Andes, Nicotiana glauca showed strong spatial and temporal variation in floral traits and visitor assemblages, with hummingbirds acting as the only legitimate visitors and bees as nectar robbers.
Francisco Maldonado Vargas   +2 more
wiley   +1 more source

Diseases of Honeybee (Apis mellifera)

open access: yes
Honeybees, important pollinators crucial for ecosystem health, are susceptible to a range of bacterial, fungal, and viral diseases that pose significant threats to their colonies. Bacterial diseases include American Foulbrood (AFB) caused by Paenibacillus larvae and European Foulbrood (EFB) caused by Melissococcus plutonius. AFB results in the death of
Muhammad Asif Aziz, Shah Alam
openaire   +1 more source

Abelha apis mellifera - 2

open access: yes
A imagem traz a abelha da espécie denominada Apis mellifera, vista lateralmente em uma florComponente Curricular::Ensino Fundamental::Séries Finais::Meio ...
Webbee
core  

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