Small populations are more prone to extinction if the dispersal among them is not adequately maintained by ecological connections. The degree of isolation between populations could be evaluated measuring their genetic distance, which depends on the respective geographic (isolation by distance, IBD) and/or ecological (isolation by resistance, IBR) distances. The aim of this study was to assess t...

A distributed simulation framework is presented to enable natural resource managers to take advantage of both Geographic Information System (GIS) functionality and computationally intensive ecological modeling. Based on one of the newest products from a major vendor of GIS software (ESRI’s ArcGIS engine), a user interface was developed to manipulate and visualize digital maps and spatially expl...

Metapopulations are models of ecological systems, describing the interactions and the behavior of populations that live in fragmented habitats. In this paper, we present a model of metapopulations based on the multivolume simulation algorithm tau-DPP, a stochastic class of membrane systems, that we utilize to investigate the influence that different habitat topologies can have on the local and ...

Reducing fragmentation and increasing interior area of habitat patches are major goals of restoration programs. Most strategies to correct these issues are qualitative based on visual interpretation, rather than quantitative based on the spatial characteristics of patches. To circumvent this, we developed an approach that integrates domain knowledge into an objective and geometric analysis of t...

ABSTRACT: The significant advances of hardware manufacturing technology have boosted the deployment of Wireless Sensor Networks (WSNs).The WSN are used in many applications in military, ecological, and health-related areas. These applications often include the monitoring of sensitive information such as enemy movement on the battlefield or the location of personnel in a building. Security is th...

A distributed simulation framework is presented to enable natural resource managers to take advantage of both Geographic Information System (GIS) functionality and computationally intensive ecological modeling. Based on one of the newest products from a major vendor of GIS software (ESRI’s ArcGIS engine), a user interface was developed to manipulate and visualize digital maps and spatially expl...