Results 111 to 120 of about 531 (145)
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CONSEQUENCES OF NECTAR ROBBING FOR REALIZED MALE FUNCTION IN A HUMMINGBIRD-POLLINATED PLANT
Ecology, 2000The effects of nectar robbers on plants and their mutualistic pollinators are poorly understood due, in part, to the paucity of studies examining male reproductive success in nectar-robbed plants. Here we measured the effects of a nectar-robbing bumblebee, Bombus occidentalis, on realized male reproductive success (seeds sired) in a hummingbird ...
Rebecca Irwin, Alison Brody
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Corolla stickiness prevents nectar robbing in Erica
Journal of Plant Research, 2021Floral stickiness is a rare trait with unknown function, but it is common in the mega-diverse Cape genus Erica (Ericaceae). This study investigated the role of stickiness measured as adhesive strength in Erica as protection against nectar robbing and its correlation with floral traits.
Sam McCarren +2 more
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Honeybees with extensive foraging experience rob nectar more frequently
The Science of Nature, 2021Not all flower-visiting animals act as pollinators; some visitors engage in foraging nectar without pollen transfer. The tendency to rob nectar is related to visitors' morphological traits and rewards per foraging effort, and drivers of this variation within visitor species are largely unknown.
Yuta Nagano, Tomoyuki Yokoi
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Nectar Robbing: Ecological and Evolutionary Perspectives
Annual Review of Ecology, Evolution, and Systematics, 2010Not all floral visitors attracted to flowers are pollinators. Instead, some visitors circumvent the floral opening, usually removing nectar without contacting the anthers and/or stigma. Here we review the evolutionary ecology of nectar robbing from both the plant and animal perspective.
Rebecca E. Irwin +3 more
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Patterns of nectar robbing on two manzanita species
2021CEC Research Volume 5, Issue ...
Dyste, Breana +3 more
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Variation in nectar robbing over time, space, and species
Oecologia, 2002Spatiotemporal variation in the interactions among plants and animals is widespread; yet our conceptual and empirical understanding of this variation is limited to a few types of visitors, mainly herbivores, pollinators, seed predators, and seed dispersers. Despite the ubiquity of nectar robbing and the strength of its effects on plant fitness, we know
Rebecca E, Irwin, Joan E, Maloof
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Impacts of nectar robbing on the foraging ecology of a territorial hummingbird
Behavioural Processes, 2018While the effects of nectar robbing on plants are relatively well-studied, its impacts from the perspective of the pollinators of robbed plants is not. Numerous studies do consider the impacts of robbing on pollinator visitation to robbed plants, but rarely do they focus on its scaled-up impacts on individual pollinator behavior.
Jenny A, Hazlehurst, Jordan O, Karubian
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Effects of nectar-robbing on plant reproduction and evolution
Frontiers of Biology in China, 2007The relationship between plant and pollinator is considered as the mutualism because plant benefits from the pollinator’s transport of male gametes and pollinator benefits from plant’s reward. Nectar robbers are frequently described as cheaters in the plant-pollinator mutualism, because it is assumed that they obtain a reward (nectar) without providing
Yanwen Zhang, Yong Wang, Youhao Guo
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Nectar robbing impacts pollinator behavior but not plant reproduction
Oikos, 2016Trait‐mediated indirect effects (TMIEs) refer to interactions in which the effect of one species on another is mediated by the behavior of a third species. A mechanistic approach that identifies the direction and impact of TMIEs can shed light on why different net outcomes are observed in the same general phenomena across systems ...
Jenny A. Hazlehurst, Jordan O. Karubian
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Consequences of nectar robbing for the fitness of a threatened plant species
Plant Ecology, 2008The effect of nectar robbing on plant fitness is poorly understood and restricted to a few plant species. Furthermore, the available studies generally evaluate the effects of nectar robbing on female fitness, disregarding the male component. Here we measured the effects of the nectar-robbing bumblebees on male (measured as pollen analogue flow distance)
Sílvia Castro +2 more
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