Results 31 to 40 of about 345 (159)
Studies on the expression of genes in different contexts are essential to our understanding of the functioning of organisms and their adaptations to the environment.
Samuel Boff +5 more
doaj +1 more source
Large-range movements of neotropical orchid bees observed via radio telemetry.
Neotropical orchid bees (Euglossini) are often cited as classic examples of trapline-foragers with potentially extensive foraging ranges. If long-distance movements are habitual, rare plants in widely scattered locations may benefit from euglossine ...
Martin Wikelski +7 more
doaj +1 more source
More About Euglossine Bees in Amazonian Forest Fragments
Male euglossine bees were captured monthly for one year in modified McPhail traps baited with cineole, methyl salicylate, and skatole. The traps were operated 90 km north of Manaus, Brazil in continuous terra firme forest and forest fragments of 1, 10, and 100 ha. Of the 16 species of euglossine bees captured, Euglossa chalybeata and Eg.
Becker, Peter +2 more
openaire +1 more source
Orchid bee (Hymenoptera: Apidae) community from a gallery forest in the Brazilian Cerrado
The orchid bees are a very important group of pollinators distributed in the Neotropics. Although a lot of studies concerning male euglossine bees have been done in this region, few works have so far been carried out in the Cerrado biome. This manuscript
Francinaldo S Silva
doaj +2 more sources
On egg eclosion and larval development in euglossine bees
ABSTRACT This study explores egg eclosion and larval biology of orchid bees (Apidae: Euglossini) in light of existing knowledge from studies dealing with a group of tribes within the Apidae referred to as corbiculate bees. It reports that Eulaema (Apeulaema) polychroma (Mocsary) has five larval instars, and its first instar exists only briefly in that ...
openaire +4 more sources
Várzea floodplain forests are important ecosystems of the Amazon basin. Our goal was to verify whether orchid bee males have stratum preference in a forest with a dynamic understory.
Patricia dos Santos Vilhena
doaj +1 more source
POLLINATION OF DALECHAMPIA MAGNOLIIFOLIA (EUPHORBIACEAE) BY MALE EUGLOSSINE BEES
Flowers of Dalechampia magnoliifolia in eastern Peru were pollinated primarily by male Eulaema meriana and E. cingulata, which collected fragrance from the secretory gland borne in the staminate cymule. The fragrance contains carvone oxide, benzyl acetate, limonene, α‐pinene, myrcine, β‐pinene/camphene, and carvone. Trigona cf.
Armbruster, W. Scott +3 more
openaire +1 more source
Hummingbird pollination is a hallmark of American plant diversity and has long been thought to evolve in tropical mountains due to declining bee activity. Using sister species of Costus specialized on bees (C. kuntzei) and hummingbirds (C. wilsonii), we show that this shift is not driven by reduced bee visitation with elevation, but by greater ...
Pedro Juárez +7 more
wiley +1 more source
A study was conducted in an early second-growth forest aiming at knowing the richness, relative abundance, seasonal distribution, and hourly frequency of euglossine bees, and their association with scent baits.
F. S. SILVA, J. M. M. REBÊLO
doaj +1 more source
Evolution of Seed Dispersal Modes in the Orchidaceae: Has the Vanilla Mystery Been Solved?
Orchid seeds are predominantly wind-dispersed, often developed within dry, dehiscent fruits that typically release millions of dust-like seeds into the air.
Adam P. Karremans +4 more
doaj +1 more source

