Results 51 to 60 of about 16,645 (235)
Hummingbirds arrest their kidneys at night: diel variation in glomerular filtration rate in Selasphorus platycercus [PDF]
, 2004 © The Company of Biologists Ltd 2004Small nectarivorous vertebrates face a quandary. When feeding, they must eliminate prodigious quantities of water; however, when they are not feeding, they are susceptible to dehydration.
Hartman Bakken, B. +3 more
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FXTAS and the Spectrum of FMR1 Premutation‐Associated Phenotypes in Latin America: A Scoping Review
Movement Disorders Clinical Practice, EarlyView.Abstract Background Fragile X–associated tremor/ataxia syndrome (FXTAS) is a late‐onset neurodegenerative disorder caused by FMR1 premutation expansions (55–200 CGG repeats). Although well described in populations of predominantly European ancestry, FXTAS remains poorly characterized in Latin America due to limited awareness, restricted access to ...
Amy Schmidmajer +6 more
wiley +1 more source
Acta Botânica Brasílica, 2011 Reproductive biology, including phenology, flower biology, pollination, and the reproductive system in the bromeliad Aechmea distichantha were studied in an Araucaria forest in the state of Paraná.
Gilson João Scrok +1 more
doaj +1 more source
Acta Botânica Brasílica, 2021 Intraspecific floral variations may affect the degree of generalization and efficacy of pollinators, with consequences for plant reproductive success.
Alessandra Ribeiro Pinto +3 more
doaj +1 more source
The physiology and biomechanics of avian flight at high altitude [PDF]
, 2006 Many birds fly at high altitude, either during long-distance flights or by virtue of residence in high-elevation habitats. Among the many environmental features that vary systematically with altitude, five have significant consequences for avian flight ...
Altshuler, Douglas L., Dudley, Robert
core
Generalist‐pollinated Arabis alpina exhibits floral scent variation at multiple scales
Nordic Journal of Botany, EarlyView.Plants that depend on animals for reproduction often use complex floral traits to attract pollinators. Floral scent is recognized as part of the pollinator attraction module and can be shaped by plant‐pollinator interactions. In recent decades, research has started to reveal the dynamic properties of floral scent, identifying patterns of spatial and ...
Hanna Thosteman +5 more
wiley +1 more source
Acta Botânica Brasílica, 2010 Distyly is a floral polymorphism more common among the Rubiaceae than in any other angiosperm group. Palicourea rigida is a typically distylous species of the Rubiaceae widely distributed in the Brazilian Cerrados.
Adriana de Oliveira Machado +4 more
doaj +1 more source
Teleological Essentialism: Generalized [PDF]
, 2020 Natural/social kind essentialism is the view that natural kind categories, both living and non-living natural kinds, as well as social kinds (e.g., race, gender), are essentialized. On this view, artifactual kinds are not essentialized.
Keil F. C. +5 more
core +1 more source
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Niche partitioning is often considered an important mechanism promoting species co‐occurrence in species‐rich communities. As species richness increases, niche partitioning may lead to different niche structures, including increased packing of species niches when the ...
Bryan G. Rojas +3 more
wiley +1 more source
RodriguésiaHummingbirds are the most important group of pollinating birds in the Neotropics and tend to use, concomitantly, more than one plant species as food source. Pollen may be mixed on hummingbirds' body due to the visits to different plant species; therefore,
Lorena Coutinho Nery da Fonseca +4 more
doaj +1 more source