The use of pre-exposure prophylaxis (PrEP), where approved antivirals are administered to uninfected high-risk individuals, is universally regarded as a promising strategy to prevent susceptible high-risk individuals from acquiring HIV infection from their infected partners. A number of antiviral drugs (and their combinations) have been developed and are being used as prophylaxis against the...
The rescue effect is a well-known process in spatial ecology where immigration from a subsidizing subpopulation prevents a vulnerable subpopulation from going extinct. It has become a cornerstone of metapopulation theory and provides a conceptual basis for conservation management.
In this talk, we challenge the prevailing optimism surrounding dispersal. We uncover the phenomenon of the...
Modeling coral ecosystems in a theoretical framework typically focuses on tradeoffs between coral, algae, and grazing fish populations, highlighting its bistable dynamics; however, spatial understanding of this system is often suppressed. Analysis of models with spatial features is crucial, as degraded, patchy reef systems become more common, and the size, clustering, or overall connectivity...
It has become increasingly evident that evolution can take place in ecological time scales. One such example is that of evolution of dispersal during range expansion. As individuals with higher motility get to the leading edge faster, if these individuals benefit from low competition therein, they reproduce, and their offspring are then equally able to colonize unexplored regions. Over time,...
Tulips have captivated human interest for centuries, with their vibrant colors and unique shapes. Particularly striped tulips have been highly popular, leading to the โtulipomaniaโ in the Dutch Golden Age. But how do the tulips get their stripes? Maybe Turing can help?
Spatiotemporal population dynamics are often modeled using reactionโdiffusion equations, yet analytical insight into the role of movement and network structure remains limited. In this talk, we present a metapopulation framework based on coupled ordinary differential equations on networks, focusing on regimes where dispersal is faster than local growth. Using tools from matrix analysis and...
Tipping points refer to abrupt, substantial, and often irreversible transitions in dynamic systems that can be triggered by minor perturbations. Existing tipping mechanisms are usually classified by the nature of the trigger: bifurcation-induced tipping occurs when a parameter crosses a critical threshold, noise-induced tipping is caused by random perturbations, rate-induced tipping occurs...
Supported by the SMB Population Dynamics, Ecology and Evolution subgroup, this mini-symposium will bring together a diverse set of researchers developing and analyzing mathematical models that address timely questions in evolutionary dynamics, population biology, ecological systems, and related areas at their interfaces. This session aims to provide a collegial forum for presenting new...
