Results 11 to 20 of about 33,960 (162)

Spatiotemporal Variations in Nectar Robbing and Its Effects on Reproduction in Salvia castanea Diels (Lamiaceae) [PDF]

open access: yesPlants
Nectar robbing typically reduces nectar availability to pollinators, damages flower structure, and/or induces secondary robbing. Consequently, it may reduce pollen deposition and seed set, increase pollination efficiency and outcrossing, and/or not ...
Han-Wen Xiao, Yan-Bo Huang
doaj   +3 more sources

Mutualism and Antagonism in a Post‐Extinction Hawaiian Bird–Lobelioid Pollination System [PDF]

open access: yesEcology and Evolution
Extinction of specialized pollinators can alter the balance between mutualism and antagonism in plant–animal interactions, yet the mechanistic consequences of partner loss remain poorly resolved. We examined plant–bird interactions among three endangered
Samuel B. Case   +9 more
doaj   +3 more sources

Floral visitors of sesame (Sesamum indicum L.): Elucidating their nectar-robbing behaviour and impacts on the plant reproduction. [PDF]

open access: yesPLoS ONE
Nectar robbing is common in angiosperms, especially in long tubular flowers or flowers with spurs that keep nectar out of reach of visitors. However, the robbing behaviour of bees is less understood.
Ujjwal Layek   +3 more
doaj   +3 more sources

Nectar Robbery by Native and Invasive Bumblebees Reduces Floral Rewards but Not Seed Production in Desfontainia fulgens [PDF]

open access: yesEcology and Evolution
Nectar robbery is common in hummingbird‐pollinated plants and is often assumed to reduce plant reproductive success by depleting floral rewards and disrupting pollination.
Carlos E. Valdivia, José I. Orellana
doaj   +3 more sources

A Decrease in the Staminode-Mediated Visitor Screening Mechanism in Response to Nectar Robbers Positively Affects Reproduction in Delphinium caeruleum Jacq. ex Camb. (Ranunculaceae) [PDF]

open access: yesBiology, 2022
Nectar-robbing insects, which are frequently described as cheaters in plant–pollinator mutualisms, may affect plant reproductive fitness by obtaining nectar rewards without providing pollination services.
Qinzheng Hou   +5 more
doaj   +2 more sources

Nectar robbing by the invasive bumblebee Bombus terrestris (Apidae) changes the behavior of native flower visitors of Fuchsia magellanica Lam. (Onagraceae) but not seed set [PDF]

open access: yesPeerJ
Mutualisms between plants and pollinators may be threatened by nectar robbers, as these animals typically consume nectar without providing the essential pollination service.
Carlos E. Valdivia   +2 more
doaj   +3 more sources

SECONDARY NECTAR ROBBING BY A VOLCANO HUMMINGBIRD (SELASPHORUS FLAMMULA)

open access: yesOrnitología Neotropical, 2023
Secondary nectar robbing is poorly studied in hummingbirds. Here, we provide an updated list of hummingbird species reported to be secondary nectar robbers and give the first detailed account of secondary nectar robbing by a Volcano Hummingbird (Selasphorus flammula) that obtained nectar through holes made by a Slaty Flowerpiercer (Diglossa plumbea) in
Jeff Marks   +2 more
openaire   +2 more sources

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
core   +4 more sources

Impact of Striped-Squirrel Nectar-Robbing Behaviour on Gender Fitness in Alpinia roxburghii Sweet (Zingiberaceae). [PDF]

open access: yesPLoS ONE, 2015
Nectar-robbing has the potential to strongly affect male and female reproductive fitness of plants. One example of nectar theft is that shown by striped-squirrels (Tamiops swinhoei) on a number of ginger species, including Alpinia roxburghii and A ...
Xiaobao Deng   +4 more
doaj   +2 more sources

Morphological specialisation for primary nectar robbing in a pollen specialist mining bee (Hymenoptera, Andrenidae) [PDF]

open access: yesJournal of Hymenoptera Research, 2023
The European mining bee species Andrena lathyri (Andrenidae) is a narrow specialist of flowers of Lathyrus and Vicia (Fabaceae), from which both females and males gain nectar by primary nectar robbing.
Andreas Müller, Paul Westrich
doaj   +4 more sources

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