1. Modelling the propagation of invasive tree species: A coupled differential equation approach.
- Author
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Hughes, Elliott, Moyers-Gonzalez, Miguel, Murray, Rua, Wilson, Phillip L., and Sivaloganathan, Siv
- Subjects
INTRODUCED species ,DIFFERENTIAL equations ,FOREST biodiversity ,ECOSYSTEMS ,CRITICAL point (Thermodynamics) ,ECOLOGICAL models - Abstract
Invasive tree species pose a grave global threat to biodiversity, particularly impacting vulnerable grassland ecosystems. This paper presents a novel approach to simulate the invasion of ecosystems by these aggressive species. Our innovative coupled ODE-PDE model offers explicit invasion simulations, a significant leap beyond traditional integro-difference matrix models. With robust theoretical properties, including solution positivity, and drawing upon PDE theory, our model offers deeper insights into invasion behavior. Our model reveals that invasions undergo a prolonged quiescent phase before rapidly transitioning to a consistent rate of advancement after a critical point. This study not only sheds light on invasion dynamics but also charts a course for future exploration and potential model extensions. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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