Results 41 to 50 of about 2,929 (187)

Biting the hand that feeds you: wedge-billed hummingbird is a nectar robber of a sicklebill-adapted Andean bellflower [PDF]

open access: yesActa Amazonica, 2018
I report on nectar robbing behavior of the wedge-billed hummingbird, Schistes geoffroyi (Trochilidae) on the Andean bellflower, Centropogon granulosus (Campanulaceae). Many species of Centropogon are characterized by an abruptly curved corolla tube which
Mannfred M.A. BOEHM
doaj   +1 more source

Measures of cross-pollination and yield production of faba bean (Vicia faba L.) in response to heat stress and insect pollination treatments [PDF]

open access: yes, 2017
Datasets relating to two experiments measuring cross-pollination and yield production of faba bean (Vicia faba L, cultivar Wizard) in response to heat stress and insect pollination treatments.
Bishop, Jacob
core   +1 more source

Geographic variation in resistance to nectar robbing and consequences for pollination [PDF]

open access: yesAmerican Journal of Botany, 2016
PREMISE OF THE STUDY:Floral evolution is frequently ascribed to selection by pollinators, but may also be shaped by antagonists. However, remarkably few studies have examined geographic mosaics in resistance to floral antagonists or the consequences for other floral interactions.METHODS:Gelsemium sempervirens experiences frequent nectar robbing in ...
Lynn S, Adler   +2 more
openaire   +2 more sources

Social Learning: Nectar Robbing Spreads Socially in Bumble Bees [PDF]

open access: yesCurrent Biology, 2008
Social transmission of learned behaviour is well documented in vertebrates but much less so among invertebrates. New research shows that nectar robbing can spread socially among bumble bees, even in the absence of nectar-robbing models.
openaire   +2 more sources

Nectar robbing rather than pollinator availability constrains reproduction of a bee‐flowered plant at high elevations

open access: yesEcosphere, 2022
Abiotic factors are generally assumed to determine whether species can exist at the extreme ends of environmental gradients, for example, at high elevations, whereas the role of biotic interactions is less clear. On temperate mountains, insect‐pollinated
Patrick L. Kohl   +1 more
doaj   +1 more source

Landscape composition modifies pollinator densities, foraging behavior and yield formation in faba beans

open access: yesBasic and Applied Ecology, 2022
Wildlife-friendly management practices promote pollinators and pollination services in agricultural landscapes. Wild bee densities are driven by landscape composition, as they benefit from an increased availability of nesting and foraging resources at ...
Nicole Beyer   +2 more
doaj   +1 more source

Gloss, colour and grip: multifunctional epidermal cell shapes in bee- and bird-pollinated flowers. [PDF]

open access: yesPLoS ONE, 2014
Flowers bear the function of filters supporting the attraction of pollinators as well as the deterrence of floral antagonists. The effect of epidermal cell shape on the visual display and tactile properties of flowers has been evaluated only recently. In
Sarah Papiorek   +2 more
doaj   +1 more source

Social learning drives handedness in nectar-robbing bumblebees

open access: yesBehavioral Ecology and Sociobiology, 2013
Bumblebees have been found to observe and copy the behaviour of others with regard to floral choices, particularly when investigating novel flower types. They can also learn to make nectar-robbing holes in flowers as a result of encountering them. Here, we investigate handedness in nectar-robbing bumblebees feeding on Rhinanthus minor, a flower that ...
Goulson, Dave   +4 more
openaire   +2 more sources

Cheaters among pollinators: Nectar robbing and thieving vary spatiotemporally with floral traits in Afrotropical forests

open access: yesEcosphere, 2023
Nectar robbers and thieves are common antagonists in plant–pollinator communities, where they deplete nectar without pollinating flowers, substantially affecting plant reproduction.
Sailee P. Sakhalkar   +5 more
doaj   +1 more source

THE EFFECTS OF NECTAR ROBBING ON PLANTEPRODUCTION AND EVOLUTION [PDF]

open access: yesChinese Journal of Plant Ecology, 2006
The relationship between plant and pollinator is considered as a mutualism because plant benefits from the pollinator's transport of male gametes. Nectar robbers are frequently described as cheaters in the plant-pollinator mutualism, because it is assumed that they obtain a reward (nectar) without providing a service (pollination).
ZHANG Yan_Wen, WANG Yong, GUO You_Hao
openaire   +1 more source

Home - About - Disclaimer - Privacy