Displaying 41 - 50 of 130
Carcaillet, Bergman, Delorme, Hornberg, Zackrisson
Knowledge of past fire regimes is crucial for understanding the changes in fire frequency that are likely to occur during the coming decades as a result of global warming and land-use change. This is a key issue for the sustainable management of…
Type: Document
Year: 2007
Gassaway
The inability to distinguish between human-caused and lightning ignitions in fire-history studies has led to three major problems: 1) a basic assumption that all pre-Euro-American settlement fire regimes are ''natural'' unless findings are aberrant…
Type: Document
Year: 2007
Letnic, Dickman
We collated an environmental history for a 8580 km2 study area in the Simpson Desert, Australia. Quantitative and qualitative data on climate, land-use, fire history and ecosystem dynamics were used to construct a chronology of processes threatening…
Type: Document
Year: 2006
Hornberg, Bohlin, Hellberg, Bergman, Zackrisson, Olofsson, Wallin, Påsse
The oldest early Mesolithic settlements found so far (i.e. 8600 B.P.) in the interior of northern Sweden, in the province of Norrbotten, have been discovered through the application of a model simulating glacio-isostatic land uplift. The objective…
Type: Document
Year: 2006
Blackford, Innes, Hatton, Caseldine
Black Ridge Brook is an upland peat site in a high rainfall area of SW England. Pollen evidence has shown that it was once wooded, with Betula and Corylus dominant, before periods of change to more open ground and the spread of mire vegetation.…
Type: Document
Year: 2006
Mills
From the text ... 'We saw how fire suppression efforts often did more damage than the fire itself -- as we also questioned the high costs of aggressive fire suppression.... Wven some members of the wildland fire management community found it…
Type: Document
Year: 2006
Gerlach, Baumewerd-Schmidt, van den Borg, Eckmeier, Schmidt
In Early Holocene, Chernozems were assumed to have covered the entire loess landscape of the Lower Rhine basin -- today mirrored by the distribution of Luvic Phaeozems. These Luvic Phaeozems have characteristic dark brown (Bht) horizons accumulating…
Type: Document
Year: 2006
Ruffner
Evidence for historical fire across the eastern deciduous biome spans several fields, including paleoecology, fire scar analysis, witness tree studies, historical documents and ethnographic sources. In this paper I provide an overview of many of…
Type: Document
Year: 2006
Franz, Quitmyer
Specimens of fossil gopher tortoises (Gopherus) were collected from five late Pliocene, two early Pleistocene, five middle Pleistocene, and 52 late Pleistocene sites in 18 counties in Florida, one county in Georgia, three in South Carolina, and one…
Type: Document
Year: 2005
Gillson, Willis
Too often, wilderness conservation ignores a temporal perspective greater than the past 50 years, yet a long-term perspective (centuries to millennia) reveals the dynamic nature of many ecosystems. Analysis of fossil pollen, charcoal and stable…
Type: Document
Year: 2004