Displaying 1 - 10 of 10
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
Kay
From the Introduction ... 'Before ecosystem management can be implemented or ecological integrity preserved, long-term ecosystem states and processes must first be quantified. For as Aldo Leopold noted over 40 years ago, 'if we are serious about…
Type: Document
Year: 1995
Bray
From the text... 'The purpose of this report is to attempt to evaluate the evidence for widespread human manipulation of the environment in the Midwestern United States. The study will focus primarily on the states of Illinois, Indiana, Iowa,…
Type: Document
Year: 1995
Fiero
In 1989 the Long Mesa fire burned approximately 3000 acres in Mesa Verde National Park, Colorado The fire spread along the top of Long Mesa and the adjacent canyons covering an area containing approximately 200 known archeological sites. Because of…
Type: Document
Year: 1995
Fiero
In 1989 the Long Mesa fire burned approximately 3000 acres in Mesa Verde National Park, Colorado. The fire spread along the top of Long Mesa and the adjacent canyons covering an area containing approximately 200 known archeological sites. Because of…
Type: Document
Year: 1995