quantifying urban landscape is fundamental for monitoring and assessing ecological and socioeconomic consequences of urbanization. expansion of roads is a significant factor driving urban landscape change. the aim of this research is quantifying impacts of roads on isfahan city landscape. to achieve this aim, land use map of isfahan was created in 6 classes: urban, green spaces, agricultural, b...

Effects of fragmentation on the ecology of organisms occupying dendritic ecological networks (DENs) have recently been described through both conceptual and mathematical models, but few hypotheses have been tested in complex, real-world ecosystems. Stream fishes provide a model system for assessing effects of fragmentation on the structure of communities occurring within DENs, including how fra...

Worldwide, more than 185,000 children under 18 years die from road traffic accidents annually (each four minutes a child death occurred due to road crashes); with most casualties from developing countries. 95% of road traffic fatalities among children occur in developing countries. Many more children are injured, often severely, and suffering from different disabilities. Road accidents cause ex...

Roads remove habitat, alter adjacent areas, and interrupt and redirect ecological flows. They subdivide wildlife populations, foster invasive species spread, change the hydrologic network, and increase human use of adjacent areas. At broad scales, these impacts cumulate and define landscape patterns. The goal of this study was to improve our understanding of the dynamics of road networks over t...

worldwide, more than 185,000 children under 18 years die from road traffic accidents annually (each four minutes a child death occurred due to road crashes); with most casualties from developing countries. 95% of road traffic fatalities among children occur in developing countries. many more children are injured, often severely, and suffering from different disabilities. road accidents cause ex...

This paper outlines land-use/landscape pattern changes and relationships between land-use change trajectories environmental variables in the Dong ethnic-minority village of Gaoyou southwestern China. In study, landscape metrics were applied to evaluate land use patterns using GeoEye-1 satellite imagery for 2009/2020 drone 2019, redundancy analysis (RDA) was clarify relationship variables. The 1...

Roads can have two important effects on populations that impact genetic variation: reduced gene flow and reduced abundance. Reduced gene flow (‘‘barrier effects’’) due to road avoidance behavior or road mortality can lead to reduced genetic diversity because genetic drift is enhanced in fragmented populations. Road mortality can also reduce population abundance (‘‘depletion effects’’) whenever ...