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Population biology of invasive species.
Assessment of evolutionary processes may be key features in determining whether invasive species establish and spread and studies of genetic diversity and evolutionary changes should be useful for managing invasiveness. Expand
The Landscape Ecology of Invasive Spread
Although habitat loss, fragmentation, and invasive species collectively pose the greatest threats to biodiversity, little theoretical or empirical research has addressed the effects of landscapeExpand
Extinction Thresholds for Species in Fractal Landscapes
This work relaxed two assumptions about the distribution of habitat and the search for suitable habitat sites in a modeling approach that combines a metapopulation model with neutral landscape models of fractal habitat distributions, finding that dispersal success for suitable, unoccupied sites was higher on fractal landscapes for nearest-neighbor dispersers than for dispersers searching at random on random landscapes. Expand
Critical Thresholds in Species' Responses to Landscape Structure
Critical thresholds are transition ranges across which small changes in spatial pattern produce abrupt shifts in ecological responses. Habitat fragmentation provides a familiar example of a criticalExpand
Landscape connectivity and population distributions in heterogeneous environments
Assessment of the independent effects of habitat affinity and habitat carrying capacity on population distributions revealed that the differential interaction of species with landscape structure was the primary determinant of distributional patterns. Expand
Dispersal success on fractal landscapes: a consequence of lacunarity thresholds
Habitat fragmentation is expected to disrupt dispersal, and thus we explored how patch metrics of landscape structure, such as percolation thresholds used to define landscape connectivity,Expand
The Use and Misuse of Neutral Landscape Models in Ecology
The purpose of NLMs is to provide null models of landscape structure as a baseline for comparison with real landscape patterns, or for evaluating the effects of landscape structures on ecological processes, and their contribution to ecology is reviewed. Expand
Dispersal success on spatially structured landscapes: when do spatial pattern and dispersal behavior really matter?
Abstract Dispersal is a fundamental component of many spatial population models. Concerns over the need to incorporate detailed information on dispersal behavior in spatially explicit populationExpand
Using fractal analysis to assess how species perceive landscape structure
To develop a species-centered definition of ‘landscapes,’ I suggest using a fractal analysis of movement patterns to identify the scales at which organisms are interacting with the patch structure ofExpand
Remaining large grasslands may not be sufficient to prevent grassland bird declines
Abstract Grassland birds are in steep decline throughout many regions of the world. In North America, even some common species have declined by >50% over the last few decades. Declines in grasslandExpand