Journal
BULLETIN OF MATHEMATICAL BIOLOGY
Volume 81, Issue 7, Pages 2768-2782Publisher
SPRINGER
DOI: 10.1007/s11538-019-00629-6
Keywords
Ecological stoichiometry; Predator-prey model; Food quality; Seasonality; External load
Categories
Ask authors/readers for more resources
Recent discoveries in ecological stoichiometry have indicated that food quality in terms of the phosphorus/carbon (P/C) ratio affects consumers whether the imbalance involves insufficient or excess nutrients. This phenomenon is called the stoichiometric P/C knife-edge. In this study, we develop and analyze a producer-consumer model which captures this phenomenon. It assesses the effects of (external) nutrient (P) loading on consumer dynamics in an aquatic environment by mechanistically deriving and accounting for seasonal variation in nutrient loading. In the absence of seasonal effects, previous models suggest that the dynamics are Hopf bifurcation, saddle-node bifurcations, and limit cycles. However, seasonal effects can have major implications on the predicted solutions and enrich population dynamics. Bifurcation analyses demonstrate that seasonal forcing can cause both periodic and quasi-periodic solutions.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available