Size Selective Predation and its Effects on Zooplankton Populations

Authors

  • Alex Jemelian University of Washington Seattle
  • Daniel Schindler University of Washington

DOI:

https://doi.org/10.47611/jsr.v12i2.1918

Keywords:

lakes, zooplankton, limnology, fish, British Columbia, Lake Washington, lake, size selective predation, predation, size selection, daphnia

Abstract

Many lakes around the world have plankton communities that are structured by an ecological phenomenon known as size selective predation. Size selective predation is a form of predation that selects for prey of a specific desired size by the predator. Size selective predation can have an effect on both size distribution of the prey population as well as the composition of zooplankton taxa in a lake ecosystem. The overarching question being asked in this experiment is how the different zooplankton populations are affected under conditions where they are subjected to size selective predation. Within our study, we assessed the effects of size selective predation in two lakes in British Columbia, and reproduced the natural phenomenon in the lab using live zooplankton and their predators to simulate interactions in the natural world.

Downloads

Download data is not yet available.

Metrics

Metrics Loading ...

Author Biography

Daniel Schindler, University of Washington

Associate Professor, Aquatic and Fishery Sciences, and Biology, University of Washington, Seattle

References or Bibliography

Brooks, J.L., & S.I. Dodson. (1965). Predation, body size, and competition of plankton. Science 150:28-35.

City of Seattle. (n.d.). Seattle’s Aquatic Environments. Seattle.gov. Retrieved December 16, 2022, from https://www.seattle.gov

Detmer, T. M., McCutchan, J. H., & Lewis, W. M. (2016). Predator driven changes in prey size distribution stabilize secondary production in lacustrine food webs. Limnology and Oceanography, 62(2), 592–605. https://doi.org/10.1002/lno.10446

Dodson, S.I. (1974). Adaptive change in plankton morphology in response to size-selective predation: A new hypothesis of cyclomorphosis. Limnology and Oceanography, 19(5), 721–729. https://doi.org/10.4319/lo.1974.19.5.0721

Dodson, S.I. (1974). Zooplankton competition and predation: An experimental test of the size-efficiency hypothesis. Ecology 55:605-613.

Gelinas, M., Pinel-Alloul, B., & Slusarczyk, M. (2007). Alternative antipredator responses of two coexisting daphnia species to negative size selection by Yoy Perch. Journal of Plankton Research, 29(9), 775–789. https://doi.org/10.1093/plankt/fbm059

Published

05-31-2023

How to Cite

Jemelian, A., & Schindler, D. (2023). Size Selective Predation and its Effects on Zooplankton Populations. Journal of Student Research, 12(2). https://doi.org/10.47611/jsr.v12i2.1918

Issue

Section

Research Projects