Results 31 to 40 of about 871 (161)

Effects in rats of bee-wax alcohols (D-002) on ulcerative colitis induced by dextran sulfate and ethanol

open access: yesRevista Peruana de Medicina Experimental y Salud Pública, 2017
Objectives. To investigate the effects of D-002, a mixture of 6 high molecular weight primary aliphatic alcohols, obtained from beeswax (Apis mellifera), on severe inflammatory ulcerative colitis (UC) induced by Dextran sulfate (DSS) and ethanol in rats (
Vivian Molina-Cuevas   +8 more
doaj   +1 more source

Flujo de genes entre frijol común y silvestre en Costa Rica

open access: yesAgronomía Mesoamericana, 2009
Con el objetivo de analizar el flujo de genes entre frijol común silvestre y cultivado, se determinó el porcentaje de alogamiaia en condiciones naturales de crecimieiento del frijol silvestre y en estación expeperimental.
Néstor Felipe Chaves-Barrantes   +2 more
doaj   +1 more source

Abejas y otros insectos polinizadores frente al uso indiscriminado de neonicotinoides y fipronil en Colombia. Comentarios a la sentencia del 12 de diciembre de 2019 del Tribunal Administrativo de Cundinamarca

open access: yesDerecho Animal, 2021
La muerte masiva de abejas y otros insectos polinizadores por el uso indiscriminado de las moléculas clotianidina, tiametoxam, imidacloprid y fipronil en Colombia llevó a su protección mediante decisión judicial, situación que constituye un importante ...
Luis Domingo Gómez Maldonado
doaj   +1 more source

Taxonomic and functional diversity of urban bees of the world

open access: yesConservation Biology, EarlyView.
Abstract Bees play a pivotal role in terrestrial environments. Urbanization can affect these organisms and the ecosystem services they provide. However, knowledge of the global diversity of urban bees is limited. Thus, we summarized data on urban bee species identities and occurrences; compared distributions of all bees with those found in urban ...
João C. F. Cardoso   +10 more
wiley   +1 more source

Exopolysaccharide‐Based Microencapsulation of Plant Growth‐Promoting Bacillus Strains Improves Germination, Growth, and Yield of Chilean Common Bean Cultivars

open access: yesLegume Science, Volume 8, Issue 1, March 2026.
ABSTRACT Microbial biostimulants offer sustainable alternatives to chemical fertilizers in legume cultivation by enhancing seed germination, nutrient uptake, and stress resilience, while maintaining the yield. However, their practical application is often limited by weak shelf life and reduced viability under environmental conditions. In this study, we
Cynthia Meza   +4 more
wiley   +1 more source

When honeybees come to town: Critical aspects of urban beekeeping and opportunities for regulation

open access: yesPeople and Nature, Volume 8, Issue 3, Page 528-540, March 2026.
Abstract Urban areas are increasingly valued for their role in conserving wild pollinators. Honeybees are often regarded as ambassador species for pollinator conservation, and beekeeping is frequently perceived as a pro‐biodiversity activity, which has become highly popular in urban areas.
Joan Casanelles‐Abella   +5 more
wiley   +1 more source

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

Fluctuación de los niveles de infección de Nosema spp. en abejas melíferas bajo condiciones tropicales de Mérida, Yucatán

open access: yesRevista Mexicana de Ciencias Pecuarias
La nosemosis es una enfermedad de las abejas adultas, causada por el microsporidio Nosema spp., que afecta el intestino medio de las abejas. Los altos niveles de infección de una colonia pueden ocasionar reducción de la población, bajo rendimiento de ...
Luis A. Medina-Medina   +3 more
doaj   +1 more source

Abejas de Costa Rica

open access: yes, 2021
Universidad Nacional, Costa ...
Hanson, Paul   +7 more
openaire   +3 more sources

Distinct Intra‐ and Interspecific Foraging Patterns of Stingless Bee Species as a Conservation Tool

open access: yesBiotropica, Volume 57, Issue 5, September 2025.
In this study, we examined the foraging patterns of three rescued stingless bee species in the Bolivian Yungas using melissopalynology and plant–pollinator network analysis. We found distinct floral foraging patterns both within and among three stingless bee species in the Bolivian Yungas, suggesting niche partitioning at multiple levels.
Sissi Lozada‐Gobilard   +4 more
wiley   +1 more source

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