Displaying 1 - 10 of 12
Hessburg, Agee
Fire was arguably the most important forest and rangeland disturbance process in the Inland Northwest United States for millennia. Prior to the Lewis and Clark expedition, fire regimes ranged from high severity with return intervals of one to five…
Type: Document
Year: 2003
Lagerås, Bartholin
[no description entered]
Type: Document
Year: 2003
Lepofsky, Heyerdahl, Lertzman, Schaepe, Mierendorf
The recent encroachment of woody species threatening many western North American meadows has been attributed to diverse factors. We used a suite of methods in Chittenden Meadow, southwestern British Columbia, Canada, to identify the human,…
Type: Document
Year: 2003
LeQuesne, Villagran, Villa
Here we present fossil pollen and charcoal concentrations results from two stratigraphic columns from Isla Mocha (38°19'-38°25'S; 73°57'-73°52'W), Laguna Hermosa (350 m.a.s.l.) and Laguna Huairavos ( 125 m.a.s.l.). These results suggest that the…
Type: Document
Year: 1999
Stowe
The South Carolina Department of Natural Resources (DNR) acquires land in the state to protect rare species and ecosystems, and significant cultural and archaeological sites. These lands -- called heritage preserves (HPs) -- also provide outstanding…
Type: Document
Year: 1999
Hardy, Keane, Harrington
From the text...'The term restoration relates to activities required to reduce hazards from wildland fires and improve federal forest and grassland health to a condition that can be maintained through periodic disturbance. Restoration and…
Type: Document
Year: 1999
Hornberg, Ostlund, Zackrisson, Bergman
1. In northern Fennoscandia a rare forest type, characterized by Cladina species and Picea abies, occurs on dry productive sites outside the range of permafrost but close to the Scandes mountains. 2. We determined the history of vegetation…
Type: Document
Year: 1999
Hornberg, Ostlund, Zackrisson, Bergman
In northern Fennoscandia a rare forest type, characterized by Cladina [Cladonia] spp. (lichens) and Picea abies, occurs on dry productive sites outside the range of permafrost but close to the Scandes mountains. The history of vegetation development…
Type: Document
Year: 1999
Harpole, Lyman
Many mammalian species found today in Washington state experienced a dynamic biogeographic history during the Holocene epoch (last 10,000 years).The elk (Cervus elaphus) was one of those species. Seventy archacological sites in Washington west of…
Type: Document
Year: 1999