Results 61 to 70 of about 2,397 (192)
Ecological Indicators, 2023 The magnitude of worldwide insect decline is hotly debated, with multiple examples of stable or increasing insect populations. In addition, time series data for tropical insects are scarce, notably in rainforests where insect diversity is poorly known ...
Yves Basset +9 more
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Sympatric Speciation: Perfume Preferences of Orchid Bee Lineages [PDF]
Current Biology, 2008 Female attraction to an environmentally derived mating signal released by male orchid bees may be tightly linked to shared olfactory preferences of both sexes. A change in perfume preference may have led to divergence of two morphologically distinct lineages.
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Is the “Centro de Endemismo Pernambuco” a biodiversity hotspot for orchid bees? [PDF]
Brazilian Journal of Biology, 2014 The orchid-bee faunas (Hymenoptera: Apidae: Euglossina) of the three largest forest remnants in the “Centro de Endemismo Pernambuco”, northeastern Brazil, namely Estação Ecológica de Murici (ESEC Murici), RPPN Frei Caneca, and a forest preserve belonging to Usina Serra Grande, in the states of Alagoas and Pernambuco, were surveyed using seventeen ...
Nemésio, A, Santos Junior, JE
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Journal of Applied Entomology, Volume 150, Issue 6, Page 716-727, July 2026.ABSTRACT Flies (Diptera) are important pollinators in global agriculture, yet little is known about how intraspecific trait variation influences their pollination performance. We compared morphological traits, foraging behaviour and pollination‐related performance metrics between laboratory‐reared (hereafter lab‐reared) and wild populations of ...
Abby E. Davis +8 more
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Darwin's bee-trap: The kinetics of Catasetum, a new world orchid [PDF]
Plant Signaling & Behavior, 2008 The orchid genera Catasetum employs a hair-trigger activated, pollen release mechanism, which forcibly attaches pollen sacs onto foraging insects in the New World tropics. This remarkable adaptation was studied extensively by Charles Darwin and he termed this rapid response "sensitiveness." Using high speed video cameras with a frame speed of 1000 fps,
Nicholson, Charles C. +3 more
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Sexual dimorphism and morphological integration in the orchid bee brain. [PDF]
Sci RepAbstract Sex-specific behaviours are common across animals and often associated with sexual dimorphism in the nervous system. Using micro-CT scanning we standardized sex-specific brain atlases and tested for sexual dimorphism in the brain of the orchid bee Euglossa dilemma, a species with marked sex differences in social behaviour, mating ...
Yamhure-Ramírez D +2 more
europepmc +5 more sources
The Wonders of Vanilla: Celebrating the 150th Anniversary of Synthetic Vanillin
ChemFoodChem, Volume 2, Issue 2, June 2026.The year 2024 marked the 150th anniversary of the first commercial production of vanillin, one of the world's most cherished flavor ingredients. This review traces vanilla's history from Mesoamerica to modern production methods, examines its composition, the discovery of vanillin and Haarmann's early synthesis compared to modern methods, and highlights
Elisabetta Brenna +2 more
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Composition of Orchid Scents Attracting Euglossine Bees
Botanica 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.
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Climate Resilience and Sustainability, Volume 5, Issue 1, June 2026.A spatial representation of the potential ‘adaptation effort’ that might be needed to maintain at least 75% of the species modelled in Biebrza National Park, Poland (white outline), at 1.5°C. The darker the green shading, the less adaptation would be needed.
Jeff Price +4 more
wiley +1 more source
Bioscience Journal, 2012 The Neotropical orchid bees have been the focus of several ecological studies in the last four decades, mainly due to the ease of attracting males of their species to synthetic baits that simulate floral fragrances.
André Nemésio
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