Results 51 to 60 of about 6,875 (169)

Linking genomic variation to floral trait adaptation across species boundaries

open access: yesNew Phytologist, EarlyView.
Examples of floral trait divergences between sister species adapted to different pollination modes. Summary Flowers are highly diverse in shape, scent, and colour and may differ strikingly even among closely related species. Floral traits experience correlational selection favouring trait combinations that maximise plant reproduction, leading to ...
Samson Acoca‐Pidolle   +2 more
wiley   +1 more source

Take-off Mechanics in Hummingbirds (Trochilidae) [PDF]

open access: yes, 2004
Initiating flight is challenging, and considerable effort has focused on understanding the energetics and aerodynamics of take-off for both machines and animals.
Powers, Donald R   +2 more
core   +1 more source

Molecular Phylogenetics and the Diversification of Hummingbirds [PDF]

open access: yes, 2014
SummaryThe tempo of species diversification in large clades can reveal fundamental evolutionary mechanisms that operate on large temporal and spatial scales [1–4].
Remsen, J.V.   +6 more
core   +1 more source

Attract hummingbirds to your garden [2002]

open access: yes
Among the many birds attracted to gardens, hummingbirds can be the most appealing. Not only are these “garden jewels” fun to watch, hummingbirds play an important role in our environment by pollinating flowers and feeding on insects.
Allen, Nancy   +2 more
core   +6 more sources

Reproductive biology and nectar secretion dynamics of Penstemon gentianoides (Plantaginaceae): a perennial herb with a mixed pollination system? [PDF]

open access: yesPeerJ, 2017
Background In many plant species, pollination syndromes predict the most effective pollinator. However, other floral visitors may also offer effective pollination services and promote mixed pollination systems.
Lucía Salas-Arcos   +2 more
doaj   +2 more sources

Floral adaptation and modular trait evolution associated with a shift from bee to hummingbird pollination

open access: yesPlant Biology, EarlyView.
By comparing floral trait variation, integration and modularity in two sister species of Neotropical Costus with a pollination shift, we show that, despite pollination syndrome divergence, both species exhibit low floral variation and functional modularity, consistent with pollinator‐driven selection on traits mediating pollen transfer efficiency and ...
P. Juárez, K. M. Kay
wiley   +1 more source

Heterospecific pollen deposition among plants sharing hummingbird pollinators in the Brazilian Atlantic Forest

open access: yesRodriguésia
Hummingbirds 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

Hummingbirds and the plants they visit in the Tehuacán-Cuicatlán Biosphere Reserve, Mexico

open access: yesRevista Mexicana de Biodiversidad, 2011
We describe the relative abundance, plant species visited, and plant communities used by hummingbird species inhabiting the Tehuacán-Cuicatlán Biosphere Reserve, a semiarid area in South-central Mexico.
Raúl Ortiz-Pulido   +3 more
doaj   +1 more source

Mixed‐vertebrate pollination traits and pollinators of Haageocereus acranthus (Cactaceae) in a lomas desert ecosystem of coastal Peru

open access: yesPlant Biology, EarlyView.
In a lomas desert ecosystem of coastal Peru, the columnar cactus Haageocereus acranthus shows traits and interactions consistent with a mixed‐vertebrate pollination system (hummingbirds and bats), with no detectable differences between flower colour morphotypes in either traits or interactions.
B. Garcia‐Simpson   +3 more
wiley   +1 more source

Elementary GLOBE: Honing in on Hummingbirds [PDF]

open access: yes, 2008
In this activity, students will record a list of things they already know about hummingbirds and a list of things they would like to learn about hummingbirds. Then they will conduct research to find answers to their questions.

core  

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