Results 31 to 40 of about 345 (159)

A Scientific Note of Housekeeping Genes for the Primitively Eusocial bee Euglossa viridissima Friese (Apidae: Euglossini)

open access: yesSociobiology, 2018
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.

open access: yesPLoS ONE, 2010
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

open access: yesBiotropica, 1991
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

open access: yesRevista de Biología Tropical, 2012
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

open access: yesAmerican Museum Novitates, 2018
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

Male Orchid Bees (Hymenoptera: Apidae: Euglossini) in Canopy and Understory of Amazon Várzea Floodplain Forest. I. Microclimatic, Seasonal and Faunal Aspects

open access: yesSociobiology, 2017
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

open access: yesAmerican Journal of Botany, 1989
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

Pollinator efficiency, rather than bee decline, explains a shift to hummingbird pollination in tropical montane forests

open access: yesNew Phytologist, EarlyView.
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

Population dynamics of Euglossinae bees (Hymenoptera, Apidae) in an early second-growth forest of Cajual Island, in the State of Maranhão, Brazil

open access: yesBrazilian Journal of Biology
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?

open access: yesHorticulturae, 2023
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

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