Results 61 to 70 of about 2,354,617 (272)

Avian pollinators and the pollination syndromes of selected Mountain Fynbos plants

open access: yesSouth African Journal of Botany, 1984
The flowering phenology of Erica and proteaceous plants and the abundance of nectarivorous birds were monitored in Mountain Fynbos in the Jonkershoek State Forest, South Africa. Species tended to flower for short periods in summer at high altitudes, or for longer periods in autumn and winter at low altitudes.
Rebelo, A.G.   +2 more
openaire   +1 more source

PSYCHOPHILOUS AND MELITTOPHILOUS POLLINATION SYNDROME IN Tridax procumbens L. (ASTERACEAE)

open access: yesTAPROBANICA, 2013
ridax procumbens exhibits explosive flowering during June–September while sporadic flowering at other times. In the capitula, the florets are of two types, nectarless female ray florets and nectariferous bisexual disc florets.
P. Varalakshmi, A. Raju
semanticscholar   +1 more source

Development of Artificial Intelligence for Quantitative Assessment of Nasal Inflammatory Cytology in Chronic Rhinitis by Whole‐Slide Images

open access: yesInternational Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background Chronic rhinitis (CR) is currently recognized as a syndrome that manifests in different phenotypes. We aimed to establish an artificial intelligence system (quantitative assessment of nasal inflammatory cytology, QANIC) on the basis of whole‐slide images (WSIs) to enable quantitative assessment of nasal inflammatory cells.
Xu Zhang   +9 more
wiley   +1 more source

Animal‐mediated seed dispersal: A review of study methods

open access: yesApplications in Plant Sciences, EarlyView.
Abstract By dispersing seeds, animals provide ecological functions critical for the ecology, evolution, and conservation of plants. We review quantitative and empirical approaches and emerging technologies to quantify processes and patterns of animal‐mediated seed dispersal (zoochory) across its phases: from predispersal to postdispersal.
Noelle G. Beckman   +10 more
wiley   +1 more source

Generalization versus specialization in pollination systems: visitors, thieves, and pollinators of Hypoestes aristata (Acanthaceae).

open access: yesPLoS ONE, 2013
Many recent studies have suggested that the majority of animal-pollinated plants have a higher diversity of pollinators than that expected according to their pollination syndrome.
Eliška Padyšáková   +3 more
doaj   +1 more source

Radial or bilateral? The molecular basis of floral symmetry. [PDF]

open access: yes, 2020
In the plant kingdom, the flower is one of the most relevant evolutionary novelties. Floral symmetry has evolved multiple times from the ancestral condition of radial to bilateral symmetry.
ACETO, SERENA   +2 more
core   +1 more source

The spread of non‐native species

open access: yesBiological Reviews, EarlyView.
ABSTRACT The global redistribution of species through human agency is one of the defining ecological signatures of the Anthropocene, with biological invasions reshaping biodiversity patterns, ecosystem processes and services, and species interactions globally.
Phillip J. Haubrock   +16 more
wiley   +1 more source

Gradual pollen presentation in Vaccinium corymbosum ‘Bluecrop’: an adaptive mechanism to improve pollination efficiency and outcrossing [PDF]

open access: yesPeerJ
Gradual pollen presentation is a plant reproductive mechanism to improve pollination efficiency and accuracy and promote outcrossing. Vaccinium corymbosum ‘Bluecrop’ has a typical gradual pollen presentation mechanism.
Chunzhi Zhou   +4 more
doaj   +2 more sources

Co-expression clustering across flower development identifies modules for diverse floral forms in Achimenes (Gesneriaceae) [PDF]

open access: yesPeerJ, 2020
Background Genetic pathways involved with flower color and shape are thought to play an important role in the development of flowers associated with different pollination syndromes, such as those associated with bee, butterfly, or hummingbird pollination.
Wade R. Roberts, Eric H. Roalson
doaj   +2 more sources

Pequenas plantas, grandes estratégias : adaptações e sobrevivência no Cerrado [PDF]

open access: yes, 2016
Tese (doutorado)—Universidade de Brasília, Instituto de Ciências Biológicas, Programa de Pós-Graduação em Ecologia, 2016.A abundância e diversidade de ervas/subarbutos em formações savânicas chamam a atenção de qualquer observador mais atento.
Giroldo, Aelton Biasi
core   +1 more source

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