Results 51 to 60 of about 5,856 (211)

No evidence of a decoy effect in bees: Rewardless flowers do not increase bumblebees' preference for neighbouring flowers

Ecological Entomology, EarlyView.
Many plants retain nectarless flowers; we tested whether these act as “decoys” for bees by making neighbouring rewarding flowers seem more valuable—a cognitive bias known as the decoy effect. The presence of decoy flowers did not shift bumblebee preferences between two equally rewarding inflorescences, and bees quickly learned to avoid these nectarless
Mélissa Armand, Leonhard Herrnberger, Clara Jung, Tomer J. Czaczkes   +3 more
wiley   +1 more source

Ecologia da polinização da amoreira-preta (Rubus sp.) (Rosaceae) em Timbó, SC, Sul do Brasil [PDF]

, 2007
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias. Programa de Pós-Graduação em Recursos Genéticos VegetaisEstudou-se a ecologia da polinização da amoreira-preta (Rubus sp.), da família Rosaceae, por meio de ...
Mello Júnior, Leônidas João de
core  

Diet breadth shapes gut microbiota in the invasive hornet Vespa velutina

Insect Conservation and Diversity, EarlyView.
Dietary and microbial profiles of V. velutina larvae are dominated by Apidae and Firmicutes, respectively. DNA metabarcoding of larval meconium and gut samples reveals a significant positive correlation between prey richness and bacterial diversity in the invasive hornet V. velutina. Multiple significant correlations exist between dietary and microbial
Cayetano Herrera, Iris Alemany, Mar Leza, José A. Jurado‐Rivera   +3 more
wiley   +1 more source

Intergenerational reproductive parasitism in a stingless bee [PDF]

Molecular Ecology, 2009
Insect colonies have been traditionally regarded as closed societies comprised of completely sterile workers ruled over by a single once-mated queen. However, over the past 15 years, microsatellite studies of parentage have revealed that this perception is far from the truth (Beekman & Oldroyd 2008). First, we learned that honey bee queens are far more
Benjamin P, Oldroyd, Madeleine, Beekman
openaire   +2 more sources

Comparative toxicity of fipronil, malathion, and thiamethoxam on the stingless bee Tetragonisca fiebrigi (Schwarz, 1938)

Acta Scientiarum: Biological Sciences, 2022
Stingless bees are important pollinators for various plant crops. We investigated the susceptibility of Tetragonisca fiebrigi to sublethal concentrations of insecticides fipronil, malathion, and thiamethoxam (administered through contact and ingestion ...
Ana Lúcia Paz Barateiro Stuchi, Daiani Rodrigues Moreira, Douglas Galhardo, Simone Aparecida dos Santos, Ludimilla Ronqui, Liriana Belizario Cantagalli, Denise Alves Lopes, Adriana Aparecida Sinópolis-Gigliolli, Vagner de Alencar Arnaut de Toledo, Maria Claudia Colla Ruvolo-Takasusuki   +9 more
doaj   +1 more source

Projected Climate‐Suitable Area for Apis mellifera (Apidae) and Its Spatial Overlap With a Mining Tailings Footprint in South‐East Brazil

Journal of Applied Entomology, EarlyView.
ABSTRACT Climate change and environmental disasters can jointly impact species distributions and ecosystem stability, including pollinators and the resources they rely on. We used occurrence and climate data to predict the distribution of Apis mellifera in the Doce River Basin, south‐east Brazil, under baseline and future scenarios (2050).
Flávio Mariano Machado Mota, Débora Lima‐Santos, Walisson Kenedy‐Siqueira, Kamilla Ingred Castelan Vieira, Geraldo Wilson Fernandes   +4 more
wiley   +1 more source

Bees at War: Interspecific Battles and Nest Usurpation in Stingless Bees [PDF]

The American Naturalist, 2014
We provide the first evidence for interspecific warfare in bees, a spectacular natural phenomenon that involves a series of aerial battles and leads to thousands of fatalities from both attacking and defending colonies. Molecular analysis of fights at a hive of the Australian stingless bee Tetragonula carbonaria revealed that the attack was launched by
Cunningham, J.P., Hereward, J., Heard, T.A., De Barro, P.J. & West, S.A.   +8 more
openaire   +5 more sources

Tropical Bee Assemblage Diversity Decreases With Elevation While Body Size Increases

Biotropica, Volume 58, Issue 4, July 2026.
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, Harold Pulido‐Guarín, Daniel Nossa‐Suárez, Gabriella Hoffmann, Ruben D. Martín‐Rojas, Lucia Aguilar‐Benavides, Margarita M. López‐Uribe   +6 more
wiley   +1 more source

Areas of natural occurrence of melipona scutellaris Latreille, 1811(Hymenoptera: Apidae) in the state of Bahia, Brazil. [PDF]

, 2012
The bee Melipona scutellaris is considered the reared meliponine species with the largest distribution in the North and Northeast regions of Brazil, with records from the state of Rio Grande do Norte down to the state of Bahia. Considering the importance
Souza, Bruno A., SANTOS, W. S., SOUZA, B. A., Carvalho, Carlos A.L., Santos, Wyratan S., Rogério M.O. Alves, ALVES, R. M. O., CARVALHO, C. A. L., Alves, Rogério M.O., Carlos A.L. Carvalho, Bruno A. Souza, Wyratan S. Santos   +11 more
core   +1 more source

The diversity of honey bee and entrance characteristics of stingless bees nests at a meliponiculture in Batu Gadang, West Sumatra [PDF]

BIO Web of Conferences
Honey bees, consist of true honey bee bees and stingless bees, are common in Indonesia. This study aimed to do the inventory on honey bee species as well as to study the entrance characteristics of stingless bee nests that exist at the meliponiculture in
Sari Melda Yunita, Herwina Henny, Tan Suat Cheng, Mairawita Mairawita, Janra Muhammad Nazri, Jasmi Jasmi   +5 more
doaj   +1 more source