This paper presents an approach for the automatic extraction of roads from digital aerial imagery. The approach makes use of several versions of the aerial image having different resolutions. Roads are modeled as a network of intersections and links between these intersections. For d ifferent so-called „global contexts" , i .e. , rural, forest, and urban area, the model describes relations betw...

We assessed the impacts of picnic areas on birds within adjacent eucalypt forests in the Brisbane region, Australia. Within he picnic areas there was an assemblage of relatively large, aggressive birds, including several generalist predators (Torresian row, grey and pied butcherbirds, Australian magpie) as well as the noisy miner, resembling that found in suburban areas within he study region. ...

Indigenous forest biome in South Africa is highly fragmented into patches of various sizes (most patches < 1 km). The utilization of timber and non-timber resources by poor rural communities living around protected forest patches produces subtle changes in the forest canopy which can be hardly detected on a timely manner using traditional field surveys. The aims of this study were to assess: (i...

On Pacific islands non-native rats and mongooses threaten many native species. In Fiji we compared visitation rates of rats and mongooses at bait stations and measured biomass of leaf-litter invertebrates to assess the relative predation pressure from these species in forest areas at different distances from the forest edge. Forest areas over 5 km from the forest edge had significantly fewer ba...

The forest products industry is a major component of Mississippi’s economic base. The need for a county-level forest inventory and the availability of decision support tools for locating forest product mills are of primary importance in attracting and sustaining the industry. The objective of this paper is to describe the pilot study, currently under development, for an integrated decision supp...

Several studies suggest that, on a large scale, relief conditions influence the Atlantic Forest cover. The aim of this work was to explore these relationships on a local scale, in Caucaia do Alto, on the Ibiúna Plateau. Within an area of about 78 km(2), the distribution of forest cover, divided into two successional stages, was associated with relief attribute data (slope, slope orientation and...

Northbound roads from Ankara, the capital of Turkey pass through immensely wide plains containing almost no trees. There is a small hill above Tuney village located at the right side of the road 80 km north of Ankara, and it is conspicuous by a small forest. How did this forest survive until today? This is a curious question for everybody interested in nature. This study aims to review and anal...