Use of Prey Hotspots by an Avian Predator: Purposeful Unpredictability?

@article{RothII2006UseOP,
  title={Use of Prey Hotspots by an Avian Predator: Purposeful Unpredictability?},
  author={Timothy C. Roth II and Steven L. Lima},
  journal={The American Naturalist},
  year={2006},
  volume={169},
  pages={264 - 273}
}
The use of space by predators in relation to their prey is a poorly understood aspect of predator‐prey interactions. Classic theory suggests that predators should focus their efforts on areas of abundant prey, that is, prey hotspots, whereas game‐theoretical models of predator and prey movement suggest that the distribution of predators should match that of their prey’s resources. If, however, prey are spatially anchored to one location and these prey have particularly strong antipredator… 
Where and when to hunt? Decomposing predation success of an ambush carnivore.
TLDR
The integrated spatiotemporal analysis revealed that an interaction between time of day and habitat influences kill probability, suggesting that trade-offs in the temporal and spatial components of predation drive the probability ofpredation events.
The predatory behavior of wintering Accipiter hawks: temporal patterns in activity of predators and prey
TLDR
The lack of early morning hunting by sharp-shinned hawks may reflect the high risk of owl-induced predation experienced by these hawks, and this realization presents an alternative to energetics as an explanation for the early morning peak in small bird activity during the winter.
Dragonfly larvae and tadpole frog space use games in varied light conditions
TLDR
It is found that predators were not more abundant in high-resource (HR) patches, and they thus did not force prey toward being uniformly distributed, which suggests that predator distributions, and indirectly prey distributions, are affected by the risk of intraguild predation.
A theory of the use of information by enemies in the predator-prey space race
TLDR
This work combined a simulation model with a genetic algorithm to discover how predators and prey behaving optimally should use information in environments with different levels of heterogeneity in prey forage distribution and prey vulnerability, supporting the ‘shell-game’ hypothesis.
Human Activity Helps Prey Win the Predator-Prey Space Race
TLDR
The hypothesis that high-human activity was displacing predators and thus indirectly creating spatial refuge for prey species, helping prey win the “space race” is tested and it is urged to carefully consider the trait-mediated indirect effects of humans, in addition to direct effects, when assessing human impacts on wildlife and ecosystems.
The Effect of Feeder Hotspots on the Predictability and Home Range Use of a Small Bird in Winter
TLDR
The movement patterns of a small bird in winter are examined to better understand how these birds might respond to the trade-off of unpredictable movements for predator avoidance with the foraging benefits of visiting large, predictable food sources.
Timing of attacks by a predator at a prey hotspot
  • G. Beauchamp
  • Psychology
    Behavioral Ecology and Sociobiology
  • 2015
TLDR
This work investigates a potential case between a predator, the peregrine falcon, and a prey species, the semipalmated sandpiper, during fall staging by sandpipers, and provides evidence in support of two predictions, suggesting that falcons and sandpipes are engaged in a war of attrition.
Intense or Spatially Heterogeneous Predation Can Select against Prey Dispersal
TLDR
A spatially explicit, individual-based predator-prey model and its mathematical approximation are analyzed to investigate the evolution of prey dispersal and show the balance between the level of competition and predation pressure an individual is expected to experience determines whether prey should disperse or stay close to their parents and siblings.
Local prey vulnerability increases with multiple attacks by a predator
TLDR
The data demonstrate that when some individual prey are constrained in their ability to feed on alternative, safer foraging sites, their vulnerability to predation increases as predator attacks accumulate, although those, presumably better quality individuals that leave the immediate risky area will have lower vulnerability, so that the mean vulnerability across the entire population may not have changed substantially.
Predator-specific landscapes of fear and resource distribution: effects on spatial range use.
TLDR
Results from a mixed regressive-spatial regressive analysis demonstrate that ranging behavior can indeed be largely interpreted as an adaptive response to perceived risk of predation by some (but not all) predators and the spatial availability of resources.
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 57 REFERENCES
Predator hunting behaviour and prey vulnerability
TLDR
The testing of the hypothesis that sparrowhawks hunt redshanks, a typical generalist predator, primarily on the basis of their vulnerability rather than their abundance means the management of prey populations may sometimes be achieved best by manipulating prey vulnerability, rather than by culling their predators.
Predators feeding on behaviourally responsive prey: some implications for classical models of optimal diet choice
TLDR
This work incorporated anti-predator vigilance into two classical models of diet choice by predators in which predators encounter two types of prey either simultaneously or sequentially, causing predators to adopt a more generalized diet than one might predict on the basis of classical theory.
PREDATOR AND PREY HABITAT SELECTION GAMES: THE EFFECTS OF HOW PREY BALANCE FORAGING AND PREDATION RISK
TLDR
Genetic algorithms are used to examine how the distributional outcome of the game between predators and prey depends on how prey balance the costs of predation risk and the benefits of foraging success, and construct two prey fitness functions.
Predator-prey shell games: large-scale movement and its implications for decision-making by prey
TLDR
This work suggests that prey movement is part of a predator-prey “shell game”, in which predators attempt to learn prey location, and the prey attempt to be unpredictable in space, and investigates this shell game using an individual-based model.
Habitat selection by predators and prey in communities with asymmetrical intraguild predation
TLDR
A game theoretic model of habitat use by predators and prey under conditions of asymmetrical intraguild predation stresses the importance of indirect interactions in structuring habitat use in communities and the need to view habitat selection in a community context.
Determinants of predation risk in small wintering birds: the hawk’s perspective
TLDR
The first description of the predatory behavior of wintering sharp-shinned hawks (Accipiter striatus) is presented, focusing on their selection of prey and attack strategies, and basic prey behavior is related to the risk of death during an attack.
The Ecology of Fear: Optimal Foraging, Game Theory, and Trophic Interactions
TLDR
This work extends foraging theory to consider a predator-prey game of stealth and fear and then embeds this game into the modeling of predator- prey population dynamics, which identifies the endpoints of a continuum of N-driven (population size) versus μ- driven (fear) systems.
Does an opportunistic predator preferentially attack nonvigilant prey?
TLDR
This work tested whether an opportunistically hunting predator, the sparrowhawk, Accipiter nisus, preferentially attacked vigilant or feeding prey models presented in pairs and found that sparrowhawks attacked vigilant and feeding mounts at similar frequencies.
Spatial Heterogeneity, Indirect Interactions, and the Coexistence of Prey Species
  • R. Holt
  • Environmental Science
    The American Naturalist
  • 1984
TLDR
The potential role of spatial heterogeneity in promoting the coexistence of prey species is explored with both analytical and graphical models and several examples from field studies suggest that habitat partitioning and the movement behavior of both predators and prey are important factors affecting coexistence in prey communities.
...
1
2
3
4
5
...