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New paradigms for the evolution of beneficial infections.
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Explaining Variation in the Effect of Floral Density on Pollinator Visitation
TLDR
This model assumes that pollinators distribute themselves between a focal patch of flowers and the surrounding environment so as to maximize foraging success and serves as a starting point for explaining an important facet of plant-pollinator mutualisms.
View on U Chicago Press
Explaining the Effects of Floral Density on Flower Visitor Species Composition
TLDR
A foraging model is presented that explores how flower visitors with diverse traits should distribute themselves across resource patches differing in floral density and is able to predict some key aspects of a previously observed effect of floral density on species composition of flower visitors to the yellowflower tarweed.
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Scale-dependent shifts in the species composition of flower visitors with changing floral density
TLDR
The scale-dependence of flower visitor responses to floral density and the interactions between site- and patch-scale effects of floral density observed in this study underscore the importance of improving the understanding of pollinators’ responses to flower density at population scales.
View on Springer
FLOBOTS: ROBOTIC FLOWERS FOR BEE BEHAVIOUR EXPERIMENTS.
TLDR
A design for inexpensive flowers that can refill themselves upon demand and that are easy enough to set up and clean that they can be used in arrays of 30 or more flowers is described.
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The value of information in floral cues: bumblebee learning of floral size cues
TLDR
The results suggest that although bees may benefit from floral cues that give information about rewards, plants offering these cues may not receive more flower visits than plants that do not.
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A benefit to providing information? Flower size cues, plant attractiveness, and plant visit length
TLDR
It was found that small flowers, although they added less to a plant’s attractiveness than large flowers, did increase a plant's attractiveness if present in sufficient number, and cues identifying unrewarding flowers could reduce rates of within-plant pollen movement, increasing the plant's fitness gains per flower visit.
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Intraspecific relationships between floral signals and rewards with implications for plant fitness
TLDR
The diversity of ways in which floral signals can be linked with floral rewards within plant species and the constraints and selective pressures on floral signal–reward relationships are described and promising research directions for addressing these considerable gaps in knowledge are identified.
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The effect of the dispersion of rewarding and rewardless flowers on visitation and constancy by bumblebees (Bombus impatiens)
TLDR
Bumblebees both encountered and visited rewardless flowers more often when they were mixed with rewarding species and the rate of switching was also higher under those conditions, which could result in higher rates of interspecific pollen transfer.
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Understanding the Effects of Floral Density on Flower Visitation Rates and Species Composition of Flower Visitors
TLDR
These studies fill a significant gap in the knowledge of pollinator responses to floral densities by developing testable hypotheses based on biologically reasonable assumptions to explain many previously-observed phenomena and laying the groundwork for understanding this important aspect of plant-pollinator mutualisms.
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