Kleptoparasitism of the sea otter (Enhydra lutris) and Steller sea lion (Eumetopias jubatus) by the glaucous-winged gull (Larus glaucescens) at Seward, Alaska

Herbert, Shelton S.; Hayes, Floyd E.; Hellie, Mychal E.

doi:10.1007/s00300-019-02559-4

Cited by 2 publications

(2 citation statements)

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“…Some interactions such as kleptoparasitism are clearly negative for the disturber (e.g. Brockmann & Barnard, 1979; Herbert et al., 2019; Wrege et al., 2005), while the dynamics of other interactions remain uncertain (Brager, 1998; Ridoux, 1987). The majority of studies we reviewed did not have a clear distinction as to whether interactions are positive or negative, and further research should work to expand our understanding of those interactions.…”

Section: Discussionmentioning

confidence: 99%

Following the feeder: A global synthesis of disturbance‐based foraging associations of birds

Dominguez,

Hauber,

Tarwater

et al. 2023

Journal of Animal Ecology

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Species interactions link animal behaviour to community structure and macroecological patterns of biodiversity. One common type of trophic species interaction is disturbance foraging—the act of obtaining food at a disturbance created by another organism. Disturbance foraging is widespread across the animal kingdom, especially among birds, yet previous research has been largely anecdotal and we still lack a synthetic understanding of how this behaviour varies geographically, phylogenetically and ecologically. To address these gaps, we conducted a comprehensive literature review to test focal hypotheses about disturbance foraging behaviour in birds. We found that avian disturbance foraging was geographically ubiquitous, occurring in both aquatic and terrestrial habitats across six continents and four oceans. Consistent with predictions based on established species diversity gradients in different habitat types, the majority of terrestrial observations occurred at tropical latitudes, whereas aquatic observations took place most frequently in temperate marine waters. Although disturbance foraging was widespread across the avian phylogeny, contrary to our prediction, the behaviour was also conserved phylogenetically (Pagel's λ = 0.7) and clustered within suboscine landbirds in terrestrial environments and seabirds in aquatic environments. Similarly, although disturbers were taxonomically diverse as we predicted, interactions were unexpectedly dominated by swarm‐raiding ants in terrestrial environments and cetaceans in aquatic environments. Diet and body mass were also important predictors of disturbance foraging associations: Responders followed disturbers with similar diets and larger body sizes. Overall, our hypothesis‐testing framework provides insight into the importance of geography, phylogeny and ecology as predictors of disturbance foraging behaviour. We anticipate that this comprehensive assessment of disturbance foraging will serve to generate additional hypotheses and spark future research and management considerations about this fascinating but poorly studied suite of species interactions, especially as biotic interactions face unprecedented risks in our rapidly changing world.

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Section: Discussionmentioning

confidence: 99%

Following the feeder: A global synthesis of disturbance‐based foraging associations of birds

Dominguez,

Hauber,

Tarwater

et al. 2023

Journal of Animal Ecology

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“…Scavenging dead prey from a predator or another scavenger may be passive (beneficial for the perpetrator, neutral for the host) or result from kleptoparasitism, in which dead food is stolen from a host (beneficial for the perpetrator, costly for the host; Brockmann and Barnard 1979, Focardi et al 2017. Herbert et al (2019) pointed out that there is a continuum from passively scavenging dropped prey to aggressively coercing a victim to relinquish food. They suggested that the behavior switches from scavenging to kleptoparasitism when a victim takes evasive maneuvers to defend its food.…”

Section: Featured Photo Sanderling Scavenging Crab Fragments From a Foraging Western Gullmentioning

confidence: 99%

Sanderling Scavenging Crab Fragments from a Foraging Western Gull

Hayes¹,

Khanzode²

2020

WBirds

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Kleptoparasitism of the sea otter (Enhydra lutris) and Steller sea lion (Eumetopias jubatus) by the glaucous-winged gull (Larus glaucescens) at Seward, Alaska

Cited by 2 publications

References 24 publications

Following the feeder: A global synthesis of disturbance‐based foraging associations of birds

Following the feeder: A global synthesis of disturbance‐based foraging associations of birds

Sanderling Scavenging Crab Fragments from a Foraging Western Gull

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