Road traffic and the loss of forests are both known to have negative effects on anurans. However, the relative importance of these two predictors is poorly understood because forest cover in the landscape is usually negatively correlated with the density of roads and traffic. To evaluate the independent effects of traffic and forest cover, we selected 36 ponds near Ottawa, Canada, at the center...

abstract recognition of effective factors on landslide occurrence and so high and low hazard region is one of the most important and necessary works for mitigation of landslide damages. in this study, from all of the effective factors on landslide occurrence, land use changes and road construction, into a parts of tadjan watershed with area about 708.08 square kilometers in south of sari, was s...

in this study, the effects of road salting on the quality of forest soils near the road were monitored in the Krkonoše Mountains (Czech republic). Physical, chemical properties and microbial parameters of soils were determined and the toxic potentials of soil water extracts were evaluated using the bacterial tests (Microtox and Pseudomonas putida growth inhibition test). increased concentration...

The detection of objects on a given road path by vehicles equipped with range measurement devices is important to many civilian and military applications such as obstacle avoidance in autonomous navigation systems. In this thesis, we develop a method to detect objects of a specific size lying on a road using an acquisition vehicle equipped with forward looking Light Detection And Range (LiDAR) ...

The principles outlined here apply as much to other types of regional analysis, and not just forestry, although forestry applications show many of the complexities of the general problem. The objective is first to map the forests in some valid fashion, then to predict their growth in the future, and finally to schedule harvesting that both preserves the regeneration rate of the whole forest, pr...

The detection of objects on a given road path by vehicles equipped with range measurement devices is important to many civilian and military applications such as obstacle avoidance in autonomous navigation systems. In this thesis, we develop a method to detect objects of a specific size lying on a road using an acquisition vehicle equipped with forward looking Light Detection And Range (LiDAR) ...

USDA Forest Service, Northern Research Station, 5985 Highway K, Rhinelander, WI, 54501 USA Department of Forest Ecosystems & Society, Oregon State University, 321 Richardson Hall, Corvallis, OR 97331, USA Direction de la recherche forestière, Ministère des Forêts, de la Faune et des Parcs du Québec, 2700 rue Einstein, Québec, G1P 3W8, Canada Rubenstein School of Environment and Natural Resource...

Asterisk indicates corresponding author (when not the first author). Locations indicated for first authors only. Mauricio Acuna, Cristian Palma, Wenbin Cui, David Martell *, Andres Weintraub Universidad de Chile, Santiago “Integrated timber harvest and fire management planning” Harvest planners often consider potential fire losses and timber production plans can influence fire management but mo...