scholarly journals Landscape-Level Dynamics of Grassland-Forest Transitions in British Columbia

2004 ◽  
Vol 57 (1) ◽  
pp. 66 ◽  
Author(s):  
Yuguang Bai ◽  
Klaas Broersma ◽  
Don Thompson ◽  
Timothy J. Ross
Keyword(s):  
British Columbia ◽  
Forest Transitions ◽  
Landscape Level

scholarly journals Landscape-level dynamics of grassland-forest transitions in British Columbia

2011 ◽  
Vol 57 (1) ◽  
Author(s):  
Yuguang Bai ◽  
Klaas Broersma ◽  
Don Thompson ◽  
Timothy Ross
Keyword(s):  
British Columbia ◽  
Forest Transitions ◽  
Landscape Level

scholarly journals Landscape-level dynamics of grassland-forest transitions in British Columbia

2004 ◽  
Vol 57 (1) ◽  
pp. 66-75 ◽  
Author(s):  
YUGUANG BAI ◽  
KLAAS BROERSMA ◽  
DON THOMPSON ◽  
TIMOTHY J. ROSS
Keyword(s):  
British Columbia ◽  
Forest Transitions ◽  
Landscape Level

scholarly journals A landscape-level analysis of yellow-cedar decline in coastal British Columbia

2011 ◽  
Vol 41 (8) ◽  
pp. 1638-1648 ◽  
Author(s):  
Claire E. Wooton ◽  
Brian Klinkenberg
Keyword(s):  
British Columbia ◽  
Logistic Model ◽  
Predictive Accuracy ◽  
Site Factors ◽  
Dramatic Decline ◽  
Show Evidence ◽  
Elevation Model ◽  
Coastal British Columbia ◽  
Level Analysis ◽  
Landscape Level

Yellow-cedar (Chamaecyparis nootkatensis D. Don (Spach)) is currently undergoing a dramatic decline in western North America. Recent research suggests that site factors combined with a shift in climate have predisposed yellow-cedar trees to decline. We conducted the first landscape-level analysis of the decline in coastal British Columbia to assess relations between the decline and topographic variables. We used lasso-penalized logistic regression to model yellow-cedar decline presence and absence with topographic variables derived from a digital elevation model. Model results indicated that low elevation sites close to the coast, which are more exposed and have more variation in elevation, are more likely to show evidence of decline. The logistic model fit the data well (Nagelkerke R2 = 0.846) and had high predictive accuracy (AUC = 0.98). The topographic variables identified by the model influence degree of soil saturation, temperatures, and snowpack presence in a forest stand, supporting the proposed associations in the current decline hypothesis. The analysis also highlighted the utility of the lasso logistic model for selecting significant variables and mapping areas at high risk for decline. Knowledge of the determinants of the spatial pattern of decline will improve predictability and provide critical information for conservation and management of yellow-cedar.

Landscape level analysis of mountain pine beetle in British Columbia, Canada: spatiotemporal development and spatial synchrony within the present outbreak

Ecography ◽  
2006 ◽  
Vol 29 (3) ◽  
pp. 427-441 ◽  
Author(s):  
Brian H. Aukema ◽  
Allan L. Carroll ◽  
Jun Zhu ◽  
Kenneth F. Raffa ◽  
Theodore A. Sickley ◽  
...  
Keyword(s):  
British Columbia ◽  
Mountain Pine Beetle ◽  
Spatial Synchrony ◽  
Mountain Pine ◽  
Pine Beetle ◽  
Level Analysis ◽  
Landscape Level

scholarly journals Landscape-level analysis of mountain goat population connectivity in Washington and southern British Columbia

2015 ◽  
Vol 16 (5) ◽  
pp. 1195-1207 ◽  
Author(s):  
Leslie C. Parks ◽  
David O. Wallin ◽  
Samuel A. Cushman ◽  
Brad H. McRae
Keyword(s):  
British Columbia ◽  
Population Connectivity ◽  
Goat Population ◽  
Mountain Goat ◽  
Level Analysis ◽  
Landscape Level

scholarly journals An ecological rationale for sustainable forest management concepts at Riverside Forest Products, southcentral British Columbia

2004 ◽  
Vol 80 (3) ◽  
pp. 341-348 ◽  
Author(s):  
Robert G D'Eon ◽  
Daryll Hebert ◽  
Stephen L Viszlai
Keyword(s):  
British Columbia ◽  
Forest Management ◽  
Sustainable Forest Management ◽  
Ecological Theory ◽  
Forest Products ◽  
Ecological Indicators ◽  
Management Approach ◽  
Management Concepts ◽  
Landscape Level ◽  
Forest Managers

Riverside Forest Products (Kelowna, British Columbia) has embraced a sustainable forest management approach for the management of one its forest tenures—Tree Farm License 49. This document discusses the rationale behind many of the concepts within this approach in the context of current ecological theory. We focus specifically on the following concepts: (1) forest retention, (2) ecosystem representation, (3) ecological contributions from unharvested forests, (4) zoning and the TRIAD approach, (5) stand-level habitat elements and landscape-level features, and (6) ecological indicators. This document provides an example of the application of current ecological theory within a commercial forestry operation in Canada and is thus broadly applicable to foresters, forest managers, and researchers in most jurisdictions. Key words: British Columbia, criteria and indicators, ecological representation, forest retention, sustainable forest management, Riverside Forest Products, TRIAD

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