Reconstructed Old-Growth Forest Stand Structure and Composition of Two Stands on the Olympic Peninsula, Washington State PDF Download
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Author: David H. Peter
Publisher: DIANE Publishing
ISBN: 1437927653
Category : Nature
Languages : en
Pages : 30
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Book Description
Author: David H. Peter
Publisher: DIANE Publishing
ISBN: 1437927653
Category : Nature
Languages : en
Pages : 30
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Book Description
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 220
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Author: Allen Banner
Publisher:
ISBN:
Category : Indigenous peoples
Languages : en
Pages : 78
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"The Great Bear Rainforest Order (GBRO), established January 2016, presents legal objectives for the protection of Old Forests and Red- and Blue-Listed Plant Communities (Listed Communities) within the timber harvesting land base of the Great Bear Rainforest. Although the direction on management and conservation of both Old Forest and Listed Communities is conceptually straightforward, practical field implementation is challenging due to the lack of explicit field assessment criteria. This guidance document provides an overview of key aspects of the GBRO with respect to Old Forest and Listed Communities, and interpretation of the text in the GBRO with reference to current ecological concepts. Additionally, the document discusses how the GBRO text relates to the B.C. Conservation Data Centre methods for assessing Red- and Blue-Listed Ecological Communities. A set of field keys is provided to facilitate consistent application of ecological concepts to meet the intent of the GBRO objectives for Old Forest and Sufficiently Established Listed Communities. The keys incorporate initial minimum criteria for certain ecological features, and an index that integrates a suite of old forest attributes (the Forest Attribute Score) based on features that reflect the complexity of these older coastal, forested ecosystems. Both keys require the field practitioner to determine stand age and occurrence of a Veteran Overstory Tree layer. To evaluate the requirement for protection of Listed Communities, the level of understory development must also be evaluated. Calculation of a Forest Attribute Score requires the assessment of six stand attributes: density of Veteran Overstory Trees, density of large snags, vertical canopy differentiation, understory shrub and herb cover, amount of coarse woody debris, and stand disturbance history."--Publisher's website
Author: Keith R. Shea
Publisher:
ISBN:
Category : Dwarf mistletoes
Languages : en
Pages : 8
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Author:
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Category : Animal ecology
Languages : en
Pages : 92
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Author:
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Category : Forest genetics
Languages : en
Pages : 600
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Author: Robert Van Pelt
Publisher: Global Forest Press
ISBN:
Category : Nature
Languages : en
Pages : 228
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Author: Daniel G. Gavin
Publisher: Springer
ISBN: 3319110144
Category : Science
Languages : en
Pages : 148
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Book Description
This study brings together decades of research on the modern natural environment of Washington's Olympic Peninsula, reviews past research on paleoenvironmental change since the Late Pleistocene, and finally presents paleoecological records of changing forest composition and fire over the last 14,000 years. The focus of this study is on the authors’ studies of five pollen records from the Olympic Peninsula. Maps and other data graphics are used extensively. Paleoecology can effectively address some of these challenges we face in understanding the biotic response to climate change and other agents of change in ecosystems. First, species responses to climate change are mediated by changing disturbance regimes. Second, biotic hotspots today suggest a long-term maintenance of diversity in an area, and researchers approach the maintenance of diversity from a wide range and angles (CITE). Mountain regions may maintain biodiversity through significant climate change in ‘refugia’: locations where components of diversity retreat to and expand from during periods of unfavorable climate (Keppel et al., 2012). Paleoecological studies can describe the context for which biodiversity persisted through time climate refugia. Third, the paleoecological approach is especially suited for long-lived organisms. For example, a tree species that may typically reach reproductive sizes only after 50 years and remain fertile for 300 years, will experience only 30 to 200 generations since colonizing a location after Holocene warming about 11,000 years ago. Thus, by summarizing community change through multiple generations and natural disturbance events, paleoecological studies can examine the resilience of ecosystems to disturbances in the past, showing how many ecosystems recover quickly while others may not (Willis et al., 2010).
Author: Thomas T. Veblen
Publisher:
ISBN:
Category : History
Languages : en
Pages : 204
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Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 718
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