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Ocean Acidification: Predator-Prey Interactions of Intertidal Snails and Sea Stars

Author(s): Paige Punzalan

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Summary:
This lesson discusses ocean acidification, its causes, and the potential dangers that it may pose to aquatic ecosystems by analyzing the relationship between intertidal invertebrates. While focusing on the large issue of ocean acidification, this…

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This lesson discusses ocean acidification, its causes, and the potential dangers that it may pose to aquatic ecosystems by analyzing the relationship between intertidal invertebrates. While focusing on the large issue of ocean acidification, this lesson also provides an introduction to generalized linear models and data visualization using the R programming language while utilizing data from "Ocean acidification alters the response of intertidal snails to a key sea star predator" by Jellison et al. (2016).

Licensed under CC Attribution-ShareAlike 4.0 International according to these terms

Version 1.0 - published on 11 May 2022 doi:10.25334/8TN4-TE51 - cite this

Description

This QUBES lesson takes a look at the effects of lower pH on predator-prey interactions, precisely flight responses and interactions between intertidal invertebrates (snails and sea star predators) using the variables of pH, the proportion of time out of water as the flight response, and the presence or absence of predator cue. This lesson connects to the bigger picture of ocean acidification and dangers by discussing how changes in snail behavior could influence general trophic interactions and, consequently, ecosystem functioning. 

This lesson also contains introductory information on GLMs using the proportion and pH data provided from the focal paper. Students also learn how to visualize these variables in the R programming language.

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