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The Landscape Ecology of Invasive Spread
- Kimberly A. With
- Environmental Science
- 1 October 2002
Abstract: Although habitat loss, fragmentation, and invasive species collectively pose the greatest threats to biodiversity, little theoretical or empirical research has addressed the effects of…
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 critical…
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.
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,…
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.
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.
Dispersal success on spatially structured landscapes: when do spatial pattern and dispersal behavior really matter?
landscapemetrics : an open‐source R tool to calculate landscape metrics
- M. Hesselbarth, Marco Sciaini, Kimberly A. With, K. Wiegand, J. Nowosad
- Computer Science, Environmental ScienceEcography
- 1 October 2019
The usage and advantages of landscapemetrics are demonstrated by analysing the influence of different sampling schemes on the estimation of landscape metrics, and the many advantages of the package are demonstrated, especially its easy integration into large workflows.
THRESHOLD EFFECTS OF LANDSCAPE STRUCTURE ON BIOLOGICAL CONTROL IN AGROECOSYSTEMS
- Kimberly A. With, D. Pavuk, Jennifer L. Worchuck, R. Oates, Jamie L. Fisher
- Environmental Science
- 1 February 2002
The potential of predators to control pest populations in fragmented landscapes may ultimately reflect the extent to which thresholds in landscape structure interfere with the aggregative response of predators.