Results 61 to 70 of about 29,000 (204)

New perspectives in nectar evolution and ecology: simple alimentary reward or a complex multiorganism interaction?

open access: yesActa Agrobotanica, 2017
Floral and extra-floral nectars are secretions elaborated by specific organs (nectaries) that can be associated with plant reproductive structures (the so-called floral nectaries found only in angiosperms) or vegetative parts (extrafloral nectaries ...
Massimo Nepi
doaj   +1 more source

Influential factors in nectar composition and yield in Leptospermum scoparium : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Plant Science, Institute of Agriculture and the Environment, College of Sciences, Massey University, Palmerston North, New Zealand [PDF]

open access: yes, 2015
Material omitted from digital version of thesis: Nickless, E. M., Anderson, C. W. N., Hamilton, G., Stephens, J. M., & Wargent, J. (2016). Soil influences on plant growth, floral density and nectar yield in three cultivars of manuka (Leptospermum ...
Nickless, Elizabeth Mary
core  

Floral Rewards: Alternatives to Pollen and Nectar

open access: yesAnnals of the Missouri Botanical Garden, 1981
(Uploaded by Plazi for the Bat Literature Project) In angiospermsselectionhas led to the utilizationof numeroussubstancesotherthanpollenand nectar that help to insure repeatedvisitation by pollinatinganimals. Here, we group the various substancesinto nonnutritiveand nutritiverewardsand discuss withineach groupthe specifickinds that occur.
Simpson, Beryl B., Neff, John L.
openaire   +2 more sources

Bird pollination of Canary Island endemic plants [PDF]

open access: yes, 2008
The Canary Islands are home to a guild of endemic, threatened bird pollinated plants. Previous work has suggested that these plants evolved floral traits as adaptations to pollination by flower specialist sunbirds, but subsequently they appear to be ...
A Dafni   +54 more
core   +2 more sources

Mapping nectar-rich pollinator floral resources using airborne multispectral imagery

open access: yesJournal of Environmental Management, 2022
Wild pollinator numbers are known to be positively associated with amounts of flower-rich habitat at landscape level. Increasing floral resources can be particularly beneficial in relatively nectar-poor agricultural systems and having a baseline understanding of the temporal and spatial availability of resources can allow targeted habitat management ...
S.L. Barnsley, A.A. Lovett, L.V. Dicks
openaire   +4 more sources

Catching the thief: Nectar robbing behaviour by bumblebees on naturalised Fuchsia magellanica in Ireland

open access: yesJournal of Pollination Ecology, 2021
Fuchsia magellanica (Ongaraceae) is a plant with a traditionally ornithopholous pollination system, pollinated primarily by hummingbirds in its native range. As a naturalised alien plant in Ireland, F.
Dara Anne Stanley, Emmeline Cosnett
doaj   +1 more source

Genotype and environment effects on sunflower nectar and their relationships to crop pollination

open access: yesJournal of Pollination Ecology, 2023
Whether caused by genotype (G) or environment (E), floral trait variation has consequences for plants and their pollinators. Cultivated sunflower is a model system to explore floral trait variation; though sunflowers are bred to self-pollinate, benefits ...
Jarrad Prasifka   +2 more
doaj   +1 more source

Bumblebees gain fitness through learning [PDF]

open access: yes, 2007
Despite the widespread assumption that the learning abilities of animals are adapted to the particular environments in which they operate, the quantitative effects of learning performance on fitness remain virtually unknown. Here we evaluate the learning
Lars Chittka, Nigel E. Raine
core   +1 more source

Self-pollination by sliding pollen in Caulokaempferia coenobialis (Zingiberaceae) [PDF]

open access: yes, 2005
Caulokaempferia coenobialis (Zingiberaceae) forms dense populations on steep cliffs in shady, humid monsoon forests in south China. It produces few consecutively opening bright yellow flowers that are 3 cm long and oriented parallel to the ground.
Chen, Zhongyi   +3 more
core   +1 more source

Antioxidant activity and phenolic profile of selected organic and conventional honeys from Poland [PDF]

open access: yes, 2020
Honey is a natural food product hypothesized to have significant health-beneficial value. The results of recent studies indicate that the biological activity of honey can also be ascribed to phenolic compounds and their antioxidant activity.
Groth, Sabrina   +4 more
core   +1 more source

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