The Effects of Invasive Epibionts on Crab-Mussel Communities: A Theoretical Approach to Understand Mussel Population Decline
Document Type
Article
Publication Date
2020
Abstract
Blue mussels (Mytilus edulis) are important keystone species that have been declining in the Gulf of Maine. This could be attributed to a variety of complex factors such as indirect effects due to invasion by epibionts, which remains unexplored mathematically. Based on classical optimal foraging theory (OFT) and anti-fouling defense mechanisms of mussels, we derive an ODE model for crab-mussel interactions in the presence of an invasive epibiont, Didemnum vexillum. The dynamical analysis leads to results on stability, global boundedness and bifurcations of the model. Next, via optimal control methods, we predict various ecological outcomes. Our results have key implications for preserving mussel populations in the advent of invasion by non-native epibionts. In particular, they help us understand the changing population dynamics of local predator-prey communities, due to indirect effects that epibionts confer.
DOI
https://doi.org/10.1142/S0218339020500060
Recommended Citation
Lyu, J., Auker, L. A., Priyadarshi, A., & Rarshad, R. D. (2020). The effects of invasive epibionts on crab-mussel communities: A theoretical approach to understand mussel population decline. Journal of Biological Systems, 28(1), 1-33. https://doi.org/10.1142/S0218339020500060 Please note that the Recommended Citation may not be appropriate for your discipline. For help with other citation styles, please visit http://libguides.misericordia.edu/citationguide.