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- W2044888359 abstract "Feeding fronts are a striking pattern of spatial distribution observed in both marine and terrestrial ecological systems. These fronts not only determine the abundance and distribution of prey populations, but on a broader scale they may also affect the structure and dynamics of entire communities. Several mechanisms leading to the formation of feeding fronts have been proposed, and chemotaxis has been suggested as an important component. Here we develop two mathematical models that show front formation can occur with simple kinesis (and without chemotaxis) in two marine invertebrates with different feeding habits: a microphagous sea star ( Oreaster reticulatus ) that feeds on sediments and an herbivorous sea urchin ( Strongylocentrotus droebachiensis ) that grazes kelp beds. We utilize a large body of detailed empirical information on movement pattern, foraging behavior, and front dynamics for each species to develop, parameterize, and evaluate our models. We found that our model predictions for the rate of advance of a front and its relationship to the density of consumers at the front were in close agreement with independently collected, empirical observations in both systems. This work shows that simple local interactions between mobile consumers and a stationary resource can result in large‐scale heterogeneous patterns of abundance of both species." @default.
- W2044888359 created "2016-06-24" @default.
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- W2044888359 creator A5069583758 @default.
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- W2044888359 date "2008-11-01" @default.
- W2044888359 modified "2023-10-18" @default.
- W2044888359 title "FORMATION AND PROPAGATION OF FEEDING FRONTS IN BENTHIC MARINE INVERTEBRATES: A MODELING APPROACH" @default.
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- W2044888359 doi "https://doi.org/10.1890/07-0643.1" @default.
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