Results 31 to 40 of about 18,269 (172)
En Chimborazo, Ecuador, se evaluó tres tratamientos para el control de Varroasis (Varroa destructor) en abejas, T1: Ácido Fórmico (al 85%), T2: Ácido Oxálico (al 10% en jarabe de azúcar), T3: Timol (al 99% diluido en aceite de oliva), y un tratamiento ...
Byron Díaz-Monroy, Ph. D. +2 more
doaj +1 more source
Forest edges buffer effects of agricultural management on bee–plant interaction networks
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
Constant visitation rates across the flowering season masked major shifts in plant and flower visitor interaction structure, specialization, species roles and trait‐driven patterns shaping interaction intensity. Plants and flower visitors changed ecological roles over time, with native flower visitors playing key roles in maintaining network cohesion ...
Alba Costa +3 more
wiley +1 more source
Coinvasional disruptions to island pollinator networks
Abstract Biological invasions can adversely affect pollinator diversity by threatening the maintenance of animal‐pollinated plant communities. Although most studies have examined single invasive species, accelerating species introductions driven by global trade highlight the need to understand how multiple co‐occurring invaders jointly influence ...
Marta Quitián +5 more
wiley +1 more source
El fascinante mundo de las abejas y los productos de la colmena [PDF]
Conferencia organizada dentro de un taller en conmemoración del Día Mundial de las Abejas. Se hace una breve introducción sobre las abejas y la apicultura en España y el papel de las abejas como polinizadoras de los cultivos y zonas naturales para la ...
Gómez Ferreras, Carmen
core
The Process and Outcome of the Africanization of Honey Bees in Mexico: Lessons and Future Directions
The Africanization of honey bees (Apis mellifera L.) in the Americas is among the most extensive insect invasions in the world, with large-scale effects on the economy and ecology of a whole continent.
Ernesto Guzman-Novoa +9 more
doaj +1 more source
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
Structural Colour in Bees (Hymenoptera: Anthophila) Is Linked to Climate and Latitude
ABSTRACT Aim Environmental drivers frequently predict global patterns of colour diversity, but whether such patterns depend on the underlying colour mechanisms—pigments or microscopic structures—has scarcely been considered. Structural colour may have different functional properties that result in different associations with environmental variables ...
Patricia Henríquez‐Piskulich +6 more
wiley +1 more source
Prevalence of allergic sensitization to bee, mosquito and red ant in children with allergic disease
Background: The allergic sensitization to insects of the Hymenoptera and Culicidae order in pediatric population is studied with low frequency. Objective: To determine the prevalence of sensitization to bees, mosquito and fire ants in children with ...
Leobardo Francisco Flores-Ruiz +2 more
doaj +1 more source
Tropical Bee Assemblage Diversity Decreases With Elevation While Body Size Increases
Photos of bee specimens collected in the Colombian Andes across a nearly 3000 m elevational cline. They are arranged to illustrate both the decline in richness with elevation and the increase in community average body size with elevation. ABSTRACT Elevation gradients are powerful drivers of changes in species composition, richness, and functional ...
Nash E. Turley +6 more
wiley +1 more source

