Results 41 to 50 of about 346 (156)

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

open access: yesNew Phytologist, Volume 251, Issue 4, Page 2237-2247, August 2026.
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

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

Euglossine bees mediate only limited long‐distance gene flow in a tropical vine [PDF]

open access: yesNew Phytologist, 2016
SummaryEuglossine bees (Apidae: Euglossini) have long been hypothesized to act as long‐distance pollinators of many low‐density tropical plants. We tested this hypothesis by the analysis of gene flow and genetic structure within and among populations of the euglossine bee‐pollinated vineDalechampia scandens.Using microsatellite markers, we assessed ...
Opedal, Øystein H.   +6 more
openaire   +4 more sources

The Interplay Between Thematic Resolution, Forest Cover, and Heterogeneity for Explaining Euglossini Bees Community in an Agricultural Landscape

open access: yesFrontiers in Ecology and Evolution, 2021
Human activities have modified the landscape composition. The changes in the landscape structure can be evaluated by metrics, which are influenced, among other factors, by the number of cover classes used for the landscape classification (thematic ...
Lázaro da Silva Carneiro   +5 more
doaj   +1 more source

Floral Handedness in Mormodes Orchids: Revisiting Charles Darwin's Observations

open access: yesBiotropica, Volume 57, Issue 6, November 2025.
In this study, we scrutinized floral enantiostyly in Mormodes orchids, a unique trait within Orchidaceae first observed by Charles Darwin. We hypothesize how intricate column twisting drives strategic pollinarium placement onto opposite sides of the thorax of male euglossine bees, enhancing cross‐pollination.
Arthur Domingos‐Melo   +2 more
wiley   +1 more source

Combining Distribution Models of Plants and Their Mutualists to Map Gaps in the Knowledge of Ecological Interactions

open access: yesDiversity and Distributions, Volume 31, Issue 10, October 2025.
ABSTRACT Aim The distribution of species relying on mutualistic partners for reproduction can be constrained by their partners' distribution. Nonetheless, biotic interactions are often overlooked when estimating the distributions of species (e.g., pollinators of a given plant and the proportion of them with their distribution modelled). In the Tropics,
Amanda Fricensaft Baracat   +3 more
wiley   +1 more source

Are there any agricultural effects on the capture rates of male euglossine bees (Apidae: Euglossini)?

open access: yesRevista de Biología Tropical, 2004
During 30 days male euglossine bees were bait-sampled at 12 sites, in the central Pacific coast of Colombia (ten days and four sites at each of three adjacent habitats: farmlands, highly disturbed forest and less disturbed forest) and 487 individuals ...
Juan Carlos Sandino
doaj   +2 more sources

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, 2002
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.
SILVA F. S., REBÊLO J. M. M.
doaj  

Observations on fragrance collection behaviour of euglossine bees (Hymenoptera, Apidae)

open access: yesRevista Brasileira de Entomologia, 2015
AbstractMale bees of the tribe Euglossini collect volatile chemicals secreted by orchids using dense patches of hair on the front tarsi. After collecting chemicals, the bee hovers while transferring these fragrances to invaginations on the hind tibiae. The fragrance collection and hovering behaviours are repeated multiple times.
openaire   +5 more sources

More than fruity scents: Pollination biology, scent, and spectral reflectance of Annonaceae species

open access: yesPlant Species Biology, Volume 40, Issue 5, Page 403-425, September 2025.
We characterised the floral visual and olfactory cues of numerous Annonaceae species and reported their pollinators. We further assessed the olfactory space of most Annonaceae species available in the literature. Abstract The family Annonaceae possesses a broad array of floral phenotypes and pollination specializations, and are important in the plant ...
Ming‐Fai Liu   +4 more
wiley   +1 more source

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