Spatially structured populations in patchy habitats show much variation in migration rate, from patchy populations in which individuals move repeatedly among habitat patches to classic metapopulations with infrequent migration among discrete populations. To establish a common framework for population dynamics in patchy habitats, we describe an individual-based model (IBM) involving a diffusion ...

First off, bottoms up to you for seeking out strategies to keep your drinking in check! To maintain your safety (and the safety of others), and to make sure you?re not ?that guy? or ?that gal? at a soirée with all your closest friends (you know, the one stuck in the bathroom sick all night), it?s helpful to know strategies for limiting or pacing your drinking. Depending on the type of social si...

The neotropical diamond weevil, Entimus imperialis, is marked by rows of brilliant spots on the overall black elytra. The spots are concave pits with intricate patterns of structural-coloured scales, consisting of large domains of three-dimensional photonic crystals that have a diamond-type structure. Reflectance spectra measured from individual scale domains perfectly match model spectra, calc...