Results 1 to 10 of about 228 (118)

Ornithophily in the trumpet creeper ( Campsis radicans ) [PDF]

open access: yesEcology and Evolution
The diversification of hummingbirds (Trochilidae) has shaped the pollination strategies and floral trait evolution in at least 68 families of flowering plants in the Western Hemisphere.

exaly   +8 more sources

Ornithophily in the subtribe Maxillariinae (Orchidaceae) proven with a case study of Ornithidium fulgens in Guatemala [PDF]

open access: yesScientific Reports, 2022
Ornithophily has been long speculated to occur in the subtribe Maxillariinae (Orchidaceae), relying either solely on micromorphological analyses or scarce field observations of undefined species. In Guatemala we were able to observe regular visits of the
Monika M Lipinska   +2 more
exaly   +5 more sources

Mixed Bat‐Hummingbird Pollination Assures Reproductive Success in a Highly Variable Upper Montane Species [PDF]

open access: yesEcology and Evolution
Callianthe sellowiana is a high‐altitude species endemic to the Atlantic Forest that exhibits floral traits overlapping between ornithophily (hummingbird pollination) and chiropterophily (bat pollination), with highly variable flower color and shape and ...
Isis Paglia   +2 more
doaj   +3 more sources

Nectar secretion in a dry habitat: structure of the nectary in two endangered Mexican species of Barkeria (Orchidaceae) [PDF]

open access: yesPeerJ, 2021
Barkeria scandens and B. whartoniana are endangered, endemic taxa from Mexico. They are epiphytes adapted to dry habitats. Since these plants are xerophytic, their flowers were investigated for structural adaptations to nectar secretion.
Małgorzata Stpiczyńska   +2 more
doaj   +3 more sources

Flora of Ferruginous Outcrops Under Climate Change: A Study in the Cangas of Carajás (Eastern Amazon) [PDF]

open access: yesFrontiers in Plant Science, 2021
Climate change has impacted biodiversity, affecting species and altering their geographical distribution. Besides understanding the impact in the species, it has been advocated that answering if different traits will be differently impacted could allow ...
Tereza Cristina Giannini   +15 more
doaj   +2 more sources

Quantitative classification of Camellia japonica and Camellia rusticana (Theaceae) based on leaf and flower morphology [PDF]

open access: yesPlant Diversity, 2021
In Japan, Camellia japonica and Camellia rusticana are naturally distributed. Despite differences in their habitats and morphologies, they have been classified by various researchers as either varieties, subspecies, or species.
Harue Abe   +2 more
doaj   +2 more sources

Historical development of ornithophily in the western North American flora. [PDF]

open access: yesProceedings of the National Academy of Sciences of the United States of America, 1994
The 129 ornithophilous plant species in western North America have floristic affinities with one or the other of four geofloras: the Arcto-Tertiary flora (101 species), Madro-Tertiary flora (19 species), Madrean-Tethyan flora (8 species), and Neotropical flora (1 species).
Verne Grant, Grant V
exaly   +3 more sources

THE GIANT LOBELIAS: PACHYCAULY, BIOGEOGRAPHY, ORNITHOPHILY AND CONTINENTAL DRIFT [PDF]

open access: yesNew Phytologist, 1975
SUMMARYRecent revisions of the Asian, Jamaican and African species of pachycaul lobelias raise a number of evolutionary and biogeographical problems. Discussion of the apparent forest pachycaul ancestry of the African species is applied to problems of biogeography, pollination and Continental Drift. The available facts are accommodated in an hypothesis,
D J Mabberley
exaly   +2 more sources

Ornithophily in the Rhamnaceae: The pollination of the Chilean endemic Colletia ulicina

open access: yesFlora: Morphology, Distribution, Functional Ecology of Plants, 2005
Abstract Colletia ulicina , an endemic species from the central region of Chile, displays red, tubular, scented, nectariferous flowers at the tip of its branches. Observations at two sites during two consecutive years indicate that the hummingbird Sephanoides sephaniodes (Trochilidae) visits the flowers on a regular basis.
Diego Medan
exaly   +3 more sources

THE POLLINATION OF MARCGRAVIA: A CLASSICAL CASE OF ORNITHOPHILY?

open access: yesAmerican Journal of Botany, 1922
Since the publication of Darwin's investigations upon the pollination of orchids, many biologists have tended to assume that flowers which are visited by insects and birds are pollinated by these animals, and that aberrant types of floral organization are adaptations to insure cross-pollination.
exaly   +6 more sources

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