Results 41 to 50 of about 3,677 (183)
Atividades de vôo de operárias de Melipona seminigra: abelhas sem ferrão da Amazônia
Atividades externas de voo estao associadas a coleta de nectar, polen, resina e barro e transporte de lixo para fora da colonia. Informaçoes sobre esse trabalho das abelhas sem ferrao sao importantes para atender a programas de manejo de polinizadores ...
Gislene Almeida Carvalho-Zilse +3 more
doaj
Agricultural cover was positively associated with fluctuating asymmetry in Trypoxylon opacum, suggesting a possible increase in developmental instability in intensively managed landscapes. Wing size was positively related to forest cover and negatively related to agricultural cover, indicating that forested landscapes may promote larger body size ...
Luana Vieira Carlin dos Santos +3 more
wiley +1 more source
Para avaliar o efeito do comportamento de três espécies de abelhas na polinização e produção de morangos, flores primárias dos cultivares Oso Grande (OS) e Sweet Charlie (SC) foram expostas a diferentes tratamentos de polinização: OS - uma e quatro ...
Kátia Sampaio Malagodi-Braga +1 more
doaj
Objetivou-se com esta pesquisa analisar a própolis produzida por abelhas Apis mellifera L. no Estado da Paraíba, colhida pelo método de tela plástica, determinando-se a composição físico-química e a atividade antimicrobiana conforme o período de colheita
Rosilene Agra da Silva +5 more
doaj +1 more source
This research approaches the interaction between frugivorous fish and the flooded forests in the central Amazon. We evaluated the fruit consumption by fish and the seed dispersal potential along the flood gradient. We tested the hypothesis that the role of fish as seed dispersers varies between low várzea (LV) and high várzea (HV) forests.
Gilvan Costa +6 more
wiley +1 more source
Analysis of the insurrectional process know as “Ronco da Abelha”, which took place in northeastern Brazil in 1851/1852. In this rebellion, social and political factors were associated: opposition to the conservative Ministry by remaining groups of the “Revolução Praieira” (1848/50), and revolt of small farmers and day workers against the powerful ...
openaire +2 more sources
The ability of plants to attract pollinators is context‐dependent, influenced by floral traits, abundance, and resources from the plant community. Indirect interactions through shared pollinators, from competition to facilitation, may lead to varied reproductive outputs in plants, and the mechanisms behind these interactions remain to be fully ...
Marsal D. De Amorim +6 more
wiley +1 more source
Drone congregations in Meliponini: what do they tell us?
At some point during their life, meliponine males leave their nests and form congregations which can be made up of tens up to several hundreds of individuals.
Marilda Cortopassi-Laurino
doaj
Cooperative human signals to honeyguides form local dialects
Abstract Human language enables the exchange of complex information and precise instructions for collaborative planning and action. It rapidly evolves through social learning, generating diverse cultural communication signals used not only with other humans, but also with domesticated animals bred or trained to respond.
Jessica E. M. van der Wal +5 more
wiley +1 more source
É registrada pela primeira vez a ocorrência de Eufriesea laniventris no Amazonas. No ano 2000, foram coletados seis exemplares na região de Manaus (2º 36' S e 60º 02' W) atraídos pelas substâncias odoríferas 1,8 cineol e salicilato de metila.The first ...
Eliana Fernandez Storti +2 more
doaj +1 more source

