Results 31 to 40 of about 78,130 (182)

Orchid Bees (Hymenoptera: Apidae: Euglossini) in Seasonally Dry Tropical Forest (Caatinga) in Brazil

open access: yesSociobiology, 2018
Euglossini bees are important Neotropical pollinators, but there is a lack in the knowledge about this fauna in dry tropical environments. The aims of this study were to evaluate the richness and abundance of euglossine bees in two fragments of ...
Lazaro da Silva Carneiro   +3 more
doaj   +1 more source

A literature review of the pollination strategies and breeding systems in Oncidiinae orchids [PDF]

open access: yesActa Botânica Brasílica, 2019
Oncidiinae is an exclusively Neotropical orchid subtribe with about 1600 described species and an impressive array of vegetative and floral morphological adaptations.
Jonas B. Castro, Rodrigo B. Singer
doaj   +1 more source

Composition of Orchid Scents Attracting Euglossine Bees

open access: yesBotanica Acta, 1991
AbstractFragrance composition of flowers from 101 plant species, especially orchids, were analyzed. Several compounds, including allo‐aromadendrene, β‐bourbonene, α‐copaene, α‐cubebene, 1,2‐dimethoxybenzene, 1,3,5‐trimethoxybenzene, epoxygeranyl acetate, 7,11‐epoxymegastigma‐5(6)‐en‐9‐one, two γ‐lactones, germacradienol, germacrene D, humulene, methoxy‐
Gerlach, G., Schill, R.
openaire   +1 more source

Untangling the Complexity of Climate Change Effects on Plant Reproductive Traits and Pollinators: A Systematic Global Synthesis. [PDF]

open access: yesGlob Chang Biol
Climate change is shifting flowering and animal activity times across ecosystems, potentially increasing the risk of plant–pollinator mismatches. Flower production and plant reproductive success showed varied responses to climate change depending on the ecosystem, whereas nectar rewards declined and floral scents increased or changed under warming and ...
Martén-Rodríguez S   +20 more
europepmc   +2 more sources

Diversity and Temporal Variation in the Orchid Bee Community (Hymenoptera: Apidae) of a Remnant of a Neotropical Seasonal Semi-deciduous Forest

open access: yesSociobiology, 2015
Multiple biotic and abiotic variables control the composition, diversity, and temporal fluctuations of insect communities. In particular, the assembly of bee communities is strongly influenced by climatic factors as well as variation in food resource ...
Sidnei Mateus   +2 more
doaj   +1 more source

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

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

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

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

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