Ocean acidification may alter predator-prey relationships and weaken nonlethal interactions between gastropods and crabs

Lord, J. P. and Harper, E. M. and Barry, J. P. (2019) Ocean acidification may alter predator-prey relationships and weaken nonlethal interactions between gastropods and crabs. Marine Ecology Progress Series, 616. pp. 83-94. ISSN 0171-8630 DOI https://doi.org/10.3354/meps12921

[img] Text
m616p083.pdf - Published Version
Available under License Creative Commons Attribution.

Download (1MB)
Official URL: https://doi.org/10.3354/meps12921

Abstract

Predator–prey interactions often drive ecological patterns and are governed by factors including predator feeding rates, prey behavioral avoidance, and prey structural defenses. Invasive species can also play a large ecological role by disrupting food webs, driving local extinctions, and influencing evolutionary changes in prey defense mechanisms. This study documents a substantial reduction in the behavioral and morphological responses of multiple gastropod species (Nucella lapillus, N. ostrina, Urosalpinx cinerea) to an invasive predatory crab (green crab Carcinus maenas) under ocean acidification conditions. These results suggest that climate-related changes in ocean chemistry may diminish non-lethal effects of predators on prey responses including behavioral avoidance. While snails with varying shell mineralogies were similarly successful at deterring predation, those with primarily aragonitic shells were more susceptible to dissolution and erosion under high CO2 conditions. The varying susceptibility to predation among species with similar ecological roles could indicate that the impacts of invasive species like green crabs could be modulated by the ability of native and invasive prey to withstand ocean acidification conditions.

Item Type: Article
Subjects: 04 - Palaeobiology
Divisions: 04 - Palaeobiology
07 - Gold Open Access
Journal or Publication Title: Marine Ecology Progress Series
Volume: 616
Page Range: pp. 83-94
Identification Number: https://doi.org/10.3354/meps12921
Depositing User: Sarah Humbert
Date Deposited: 10 Mar 2020 18:12
Last Modified: 10 Mar 2020 18:12
URI: http://eprints.esc.cam.ac.uk/id/eprint/4660

Actions (login required)

View Item View Item

About cookies