Results 31 to 40 of about 2,397 (192)

Intrafloral Color Modularity in a Bee-Pollinated Orchid [PDF]

open access: yesFrontiers in Plant Science, 2020
Flower color has been studied in different ecological levels of organization, from individuals to communities. However, it is unclear how color is structured at the intrafloral level. In bee-pollinated flowers, the unidirectional gradient in color purity and pollen mimicry are two common processes to explain intrafloral color patterns. Considering that
João Marcelo Robazzi Bignelli Valente Aguiar   +6 more
openaire   +3 more sources

The antiquity and evolutionary history of social behavior in bees. [PDF]

open access: yesPLoS ONE, 2011
A long-standing controversy in bee social evolution concerns whether highly eusocial behavior has evolved once or twice within the corbiculate Apidae. Corbiculate bees include the highly eusocial honey bees and stingless bees, the primitively eusocial ...
Sophie Cardinal, Bryan N Danforth
doaj   +1 more source

Distribution patterns of orchid bees in xeric and mesic habitats on a tropical mountaintop

open access: yesInsect Conservation and Diversity, 2023
Most studies evaluating insect communities along climatic gradients in mountain regions have overlooked the relevance of the contrasting effects of xeric and mesic habitats on species distribution and richness. Mesic zones in xeric ecosystems can provide
Catarina Dias De Freitas   +5 more
semanticscholar   +1 more source

FIRST RECORD OF EUFRIESEA BARE GONZÁLEZ & GAIANI AND NOTES ON THE DISTRIBUTION OF THREE SPECIES OF ORCHID BEES PERTAINING TO THE GENUS EUGLOSSA LATREILLE (APIDAE: EUGLOSSINI) IN COLOMBIA

open access: yesRevista de la Academia Colombiana de Ciencias Exactas Físicas y Naturales, 2023
Knowledge on the geographical distribution of orchid bee species in Colombia and most of the Neotropics depends on monitoring and sample methodologies implemented and facilities to access diverse natural regions.
A. Parra-H, G. Nates-Parra
semanticscholar   +1 more source

A contribution to the knowledge of the orchid bee fauna of the Los Amigos Biological Station, Madre de Dios, Peru (Hymenoptera: Apidae: Euglossini) [PDF]

open access: yesCheck List, 2012
This study provides a list of orchid bees collected from the Los Amigos Biological Station, Madre de Dios, Peru. Specimens were captured by luring them to aromatic baits, eucalyptus oil and methyl salicylate, over a five day period in June, 2011. A total
Reed Niemack   +3 more
doaj   +3 more sources

The Nuclear and Mitochondrial Genomes of the Facultatively Eusocial Orchid Bee Euglossa dilemma

open access: yesG3: Genes, Genomes, Genetics, 2017
Bees provide indispensable pollination services to both agricultural crops and wild plant populations, and several species of bees have become important models for the study of learning and memory, plant–insect interactions, and social behavior.
Philipp Brand   +5 more
doaj   +1 more source

Orchid bees respond to landscape composition differently depending on the multiscale approach

open access: yesLandscape Ecology, 2022
Multiscale approaches are essential for understanding ecological processes and detecting the scale of effect. However, nested multiscale approaches retain the effect of the landscape attributes from the smaller spatial scales into the larger ones.
Lázaro da Silva Carneiro   +5 more
semanticscholar   +1 more source

Seasonal stability and species specificity of environmentally acquired chemical mating signals in orchid bees

open access: yesbioRxiv, 2022
Traits that mediate reproductive isolation between species, such as those involved in mate choice and/or recognition, are predicted to experience stabilizing selection towards the species mean.
Kathy Darragh   +2 more
semanticscholar   +1 more source

The Orchid Bee Communities in different phytophysiognomies in the Atlantic Forest: from lowland to montane rainforests

open access: yesSociobiology, 2017
To investigate species composition, diversity, richness, and monthly abundance of orchid bees in different types of dense rainforest, placed in different altitudes, the orchid bees were collected for 11 months in three vegetation types: dense montane ...
Willian Moura Aguiar   +3 more
doaj   +1 more source

Suction feeding in orchid bees (Apidae: Euglossini) [PDF]

open access: yesProceedings of the Royal Society of London. Series B: Biological Sciences, 2004
Energy flux during nectar feeding is maximized at an intermediate sugar concentration, the value of which depends on the morphology of the feeding apparatus and the modality of fluid feeding. Biomechanical models predict that a shift from capillary-based lapping to suction feeding will lead to a decrease in this optimal sugar concentration.
openaire   +3 more sources

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