1. We describe analytical and simulation models of metapopulations consisting of local populations that obey a random walk between a reflecting upper boundary (population `ceiling') and an absorbing ...

1. The analysis of metapopulation systems is to a great extent based on presence/absence patterns. It is possible to extract the rates of extinction and colonization from these patterns making several ...

Centralized migration accelerates adaptation and drives parallel evolution, emphasizing the key influence of spatial organization on evolutionary dynamics across systems from pathogen transmission to ...

Sutirth Dey and Amitabh Joshi of Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore, India used laboratory metapopulations of fruitflies in the first experimental test of whether a ...

Understanding how populations fluctuate and interact over fragmented landscapes is central to modern ecology and conservation biology. Metapopulation systems, comprising spatially isolated ...

Heterogeneity is ubiquitous in real-world host populations, yet most theories assume homogeneity. Using a metapopulation model, we examine how host heterogeneities, such as uneven movement patterns ...

Forbes contributors publish independent expert analyses and insights. GrrlScientist writes about evolution, ecology, behavior and health. Genetic analysis of more than 90 butterfly museum specimens ...

JACKSON – In 1993, Chris Servheen affixed his signature to a plan for the recovery of grizzly bears – a plan that called for rebuilding the bears’ numbers in six geographically distinct populations.

There’s a bright side to everything, perhaps even mass die-offs of animals. If one population of a species goes rapidly and completely extinct – maybe thanks to a forest fire or hurricane – it may ...

Populations of fish in the ocean are notoriously variable, waxing and waning in often unpredictable ways. Knowing what drives changes in fish population sizes is important for managing fisheries and ...