Studies in the Vegetational History of S. W. Spain. I. Modern Pollen Rain in the Donana National Park, Huelva

1985 ◽  
Vol 12 (3) ◽  
pp. 243 ◽  
Author(s):  
A. C. Stevenson
Keyword(s):  
National Park ◽  
Doñana National Park ◽  
Modern Pollen ◽  
Pollen Rain ◽  
History Of

scholarly journals Postglacial Fire Frequency and its Relation to Long-Term Vegetational and Climatic Changes in Yellowstone Park

1992 ◽  
Vol 16 ◽  
pp. 212-218
Author(s):  
Cathy Whitlock
Keyword(s):  
Fire Regime ◽  
Fire Frequency ◽  
Northern Rocky Mountains ◽  
Modern Pollen ◽  
Pollen Rain ◽  
History Of ◽  
Fossil Records ◽  
In Fire ◽  
The Relationship

The primary research objective has been to study the vegetational history of Yellowstone and its sensitivity to changes in climate and fire frequency. To establish a sequence of vegetational changes, a network of pollen records spanning the last 14,000 years has been studied from different types of vegetation within the Park. The relationship between modern pollen rain, modern vegetation and present­day climate in the northern Rocky Mountains has been the basis for interpreting past vegetation and climate from the fossil records. Changes in fire regime during the past 14,000 years have been inferred from sedimentary charcoal and other fire proxy in lake sediments. Calibration of the fire signal is based on a study that measures the input of charcoal into lakes following the 1988 fires in Yellowstone.

scholarly journals Modern pollen rain–vegetation relationships along a forest–steppe transect in the Golestan National Park, NE Iran

2009 ◽  
Vol 153 (3-4) ◽  
pp. 272-281 ◽  
Author(s):  
M. Djamali ◽  
J.-L. de Beaulieu ◽  
P. Campagne ◽  
V. Andrieu-Ponel ◽  
P. Ponel ◽  
...  
Keyword(s):  
National Park ◽  
Forest Steppe ◽  
Modern Pollen ◽  
Pollen Rain ◽  
Ne Iran

Modern Pollen Rain and Vegetational History of the Malaspina Glacier District, Alaska

1986 ◽  
Vol 25 (1) ◽  
pp. 100-120 ◽  
Author(s):  
Dorothy M. Peteet
Keyword(s):  
Gulf Of Alaska ◽  
Tsuga Heterophylla ◽  
Picea Sitchensis ◽  
Plant Succession ◽  
Coastal Forest ◽  
Modern Pollen ◽  
Pollen Rain ◽  
History Of ◽  
Climatic Cooling ◽  
Coastal Meadow

Seventy surface pollen samples from coastal forest, coastal meadow, muskeg, tree line, and alpine tundra communities form a basis for interpreting fossil pollen assemblages in the Malaspina Glacier district, Alaska. Poflen and macrofossil analyses of three radiocarbon-dated fossil sections from Icy Cape indicate that vegetational changes resulting from plant succession can be distinguished from those of migrational and climatic origin. Vegetation of the early Holocene xerothermic interval (10,000–7600 yr B.P.) was dominated by Alnus communities. Wetter conditions ensued, enabling generative muskeg surfaces to develop and first Picea sitchensis, then Tsuga heterophylla to expand from areas southeastward. Climatic cooling in more recent millennia (3500 yr B.P. to the present) is indicated by the appearance and persistent growth of Tsuga mertensiana and Selaginella selaginoides along this portion of the Gulf of Alaska coastline.

From Competition to Cooperation: A History of Canada–US National Park Relations

2019 ◽  
Author(s):  
Terence Young ◽  
Alan MacEachern ◽  
Lary Dilsaver
Keyword(s):  
National Parks ◽  
National Park ◽  
The United States ◽  
The Us ◽  
Park Service ◽  
Settler Societies ◽  
History Of ◽  
Relationship Of ◽  
Flow Of Information ◽  
The Relationship

This essay explores the evolving international relationship of the two national park agencies that in 1968 began to offer joint training classes for protected-area managers from around the world. Within the British settler societies that dominated nineteenth century park-making, the United States’ National Park Service (NPS) and Canada’s National Parks Branch were the most closely linked and most frequently cooperative. Contrary to campfire myths and nationalist narratives, however, the relationship was not a one-way flow of information and motivation from the US to Canada. Indeed, the latter boasted a park bureaucracy before the NPS was established. The relationship of the two nations’ park leaders in the half century leading up to 1968 demonstrates the complexity of defining the influences on park management and its diffusion from one country to another.

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