Results 61 to 70 of about 1,518 (216)

Catching on to concatenation : evidence for prepollination intrasexual selection in plants [PDF]

open access: yes, 2013
[from introduction] Darwin (1871) proposed the mechanism of sexual selection to explain the extreme traits, secondary sex characters, seen primarily in male animals for either display or competition.
Peter, C I, Shuttleworth, A
core   +2 more sources

Revisiting ecological specialization: the case of plant–frugivore interactions

open access: yesOikos, Volume 2025, Issue 3, March 2025.
Understanding the extent to which organisms exhibit specialization when interacting with or relying on distinct aspects of their biotic and abiotic environment is a central tenet in ecology and evolution. Despite the relevance of the concept and theoretical advances, specialization has and continues to be ambiguously defined. Here we review the uses of
Tomás A. Carlo   +7 more
wiley   +1 more source

Nectar-foraging behavior of Euglossine bees (Hymenoptera: Apidae) in urban areas [PDF]

open access: yesApidologie, 2008
Euglossine bees have been described as long-distance pollinators because of their great flight capacities although flight capacity is not necessarily correlated to home range. Here we report the nectar-foraging behavior of two euglossine species (Euglossa cordata and Eulaema nigrita) in urban areas and the predictive power of wing wear as an age ...
Margarita María López-Uribe   +2 more
openaire   +1 more source

Aerial litter mimicry: A novel form of floral deception mediated by a monoterpene synthase

open access: yesJournal of Ecology, Volume 113, Issue 2, Page 302-321, February 2025.
We report the first pollination system in which a flower imitates aerial litter, which refers to the arboreal plant litter in a forest. Our findings demonstrated that Meiogyne heteropetala flower fooled the aerial litter specialist Loberus sharpi by mimicking aerial litter in size, colour and odour.
Ming‐Fai Liu   +6 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  

Seasonal changes in odour preferences by male euglossine bees (Hymenoptera: Apidae) and their ecological implications [PDF]

open access: yes, 2018
Orchid bees are an important group of specialized insect pollinators in the Neotropics. Male orchid bees are attracted by a wide range of aromatic substances often produced by flowers.
Abrahamczyk, Stefan   +2 more
core  

Non‐floral scent sources of orchid bees: Observations and significance

open access: yesBiotropica, Volume 57, Issue 1, January 2025.
We observed male euglossines collecting scent at 21 different non‐floral sources in Central and South America, strengthening the view that these sources play a central role in euglossine perfume biology. A Protium tree provided over 50% of the perfumes for Eufriesea corusca and was repeatedly revisited.
Jonas Henske   +2 more
wiley   +1 more source

Caracterização de tipos polínicos transportados por abelhas em sistemas agroflorestais com dendê (Elaeis guineensis Jacq. - Arecaceae). [PDF]

open access: yes, 2011
Diante da expansão econômica da dendeicultura no Brasil, a Embrapa Amazônia Oriental, em parceria com a empresa Natura, implementou Sistemas Agroflorestais (SAFs) nas zonas de ocorrência do dendê na localidade de Quatro-Bocas, Tomé-Açu/PA.
CARREIRA, L. M. M.   +4 more
core  

Pollination of Two Species of Dalechampia (Euphorbiaceae) in Mexico by Euglossine Bees

open access: yesBiotropica, 1979
The large genus Dalechampia, including over 100 species of great vegetative diversity, has a basically uniform pseudanthial inflorescence. Investigation of two sympatric species in Mexico has shown considerable divergence in pollination adaptations. In D.
Armbruster, W. Scott, Webster, Grady L.
openaire   +2 more sources

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