Results 31 to 40 of about 43,272 (223)

Más hallazgos contra el consenso eco-alarmista

open access: yesEcología Austral, 2023
Como complemento de un artículo previo (Grau 2022), presento cinco grupos de hallazgos que desafían posturas bastante establecidas en la comunidad de ecólogos y ambientalistas.
H. Ricardo Grau
doaj   +1 more source

The Process and Outcome of the Africanization of Honey Bees in Mexico: Lessons and Future Directions

open access: yesFrontiers in Ecology and Evolution, 2020
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

Mieles y ceras valencianas. Explotación y comercio de recursos naturales desde El Maestrat y Els Ports de Morella durante los siglos XIV y XV

open access: yesAnales de la Universidad de Alicante. Historia Medieval, 2021
En las comarcas del Maestrat y Els Ports de Morella (norte del reino de Valencia), durante la Edad Media el sector apícola permitió un mejor aprovechamiento de los recursos naturales de la zona.
Joaquín Aparici Marti
doaj   +1 more source

Managed honey bee colony losses in Canada, China, Europe, Israel and Turkey, for the winters of 2008-9 and 1009-10 [PDF]

open access: yes, 2012
In 2008 the COLOSS network was formed by honey bee experts from Europe and the USA. The primary objectives set by this scientific network were to explain and to prevent large scale losses of honey bee (Apis mellifera) colonies.
Andonov, Sreten   +34 more
core   +1 more source

ABEJAS EN SISTEMAS AGRÍCOLAS: REVISIÓN DE LA DIVERSIDAD TAXONÓMICA Y FUNCIONAL, Y PERSPECTIVAS DE INVESTIGACIÓN

open access: yesActa Biológica Colombiana, 2021
Las abejas son insectos de gran importancia ecológica ya que son responsables de procesos como la polinización en ambientes naturales y agrícolas, contribuyendo a la salud y resiliencia de los ecosistemas.
Andrés F. MORALES-ALBA   +2 more
doaj   +1 more source

Prevalence of allergic sensitization to bee, mosquito and red ant in children with allergic disease

open access: yesRevista Alergia México, 2015
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

A new species of Ptiloglossa from Mexico, with new records of Ptiloglossa cyaniventris from Panama and Costa Rica (Hymenoptera: Colletidae) [PDF]

open access: yes, 2014
A new bee species of the genus Ptiloglossa Smith (Colletidae: Diphaglossinae: Caupolicanini) is described and figured from Jalisco, Mexico, while new records are provided for Ptiloglossa cyaniventris Friese from Panama and a single locality in Costa Rica.
Ayala, Ricardo, Engel, Michael S.
core   +2 more sources

EUGLOSSINI BEES (HYMENOPTERA: APIDAE) IN SANTA RITA, PANAMA

open access: yesTecnociencia, 2023
Santa Rita is a town located in the province of Colón, Panama. This area is threatened by various human activities that not only threaten the landscape and its vegetation, but also the integrity of the pollinators that live there.
Janitce A. Harwood   +2 more
doaj  

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

Mujeres mayas, abejas mayas [PDF]

open access: yesGeoGraphos. Revista Digital para Estudiantes de Geografía y Ciencias Sociales, 2016
O cultivo de abelhas sem ferrão (meliponas) tem sido praticado na Península de Yucatán (México) desde os tempos antigos, como indicado por várias evidência arqueológica e documental. Debe-se ressaltar que na maior parte da vasta literatura histórica que aborda o tema, nao há nenhuma menção a mulheres como participantes dessa prática; talvez porque ...
openaire   +2 more sources

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