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Author: Mary Lynn Reid
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 28
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Book Description
This report examines the distribution of mountain pine beetles with respect to stand composition at various scales in terms of both tree species and density. It further examines how the body condition of mountain pine beetles varies across the landscape, and suggests that these findings may explain some discrepancies in the evaluation of the success of management practices in Banff National Park.
Author: Mary Lynn Reid
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 28
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Book Description
This report examines the distribution of mountain pine beetles with respect to stand composition at various scales in terms of both tree species and density. It further examines how the body condition of mountain pine beetles varies across the landscape, and suggests that these findings may explain some discrepancies in the evaluation of the success of management practices in Banff National Park.
Author: Mary Lynn Reid
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 24
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Book Description
This study is part of a series of research papers that explore the biological, social, and economic aspects of British Columbia's mountain pine beetle epidemic. It summarizes the results of a study on the landscape variation in lodgepole pine constitutive defences, primarily measured as resin production, but also as phloem monoterpene concentration. The response of pioneer mountain pine beetles to those defences is reviewed, measured by experimentally placing beetles on trees and by attacks of free-flying beetles; effects of beetle quality (size, condition) on the beetles' responses are also examined. Finally, the results on the dispersal of mountain pine beetles through a mature lodgepole pine stand and a burned stand are presented.--Includes text from Government of Canada publications site and from document.
Author: Josie Hughes
Publisher:
ISBN: 9780662444404
Category : Arbres
Languages : en
Pages : 53
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Book Description
Despite ecological and management importance, little is known about the effect of forest landscape structure on the spread of mountain pine beetles (Dendroctonus ponderosae Hopkins). The general prediction from published literature is that forest fragmentation at some scale might slow the spread of infestations. However, mountain pine beetle dispersal ecology is complicated by requirement for attack en masse and a pheromone-based communication system that facilitates this aggregation process. One interesting possibility is that infestations might spread more slowly over habitat gaps across which beetles cannot communicate. To investigate this possibility, the authors developed an individual-based model of mountain pine beetle dispersal, aggregation and attack, and performed simulation experiments to explore the effects of habitat patch size, habitat compaction, communication distance, and flight behaviour on the spread rate and final extent of infestations.
Author:
Publisher:
ISBN:
Category : Forest management
Languages : en
Pages : 76
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Book Description
Author: J. M. Schmid
Publisher:
ISBN:
Category : Black Hills National Forest (S.D. and Wyo.)
Languages : en
Pages : 16
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Author: Walter E. Cole
Publisher:
ISBN:
Category : Insect pests
Languages : en
Pages : 64
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Book Description
Author: Walter E. Cole
Publisher:
ISBN:
Category : Lodgepole pine
Languages : en
Pages : 52
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Book Description
Author: Walter E. Cole
Publisher:
ISBN:
Category : Conifers
Languages : en
Pages : 636
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Book Description
Author: J. M. Schmid
Publisher:
ISBN:
Category : Mountain pine beetle
Languages : en
Pages : 4
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Book Description
Author: Arthur Lawrence Roe
Publisher:
ISBN:
Category : Lodgepole pine
Languages : en
Pages : 32
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Book Description
