Journal of Ecosystems and Management最新文献_第8页

Expected Effects of Climate Change on Forest Disturbance Regimes in British Columbia 气候变化对不列颠哥伦比亚省森林干扰制度的预期影响

Journal of Ecosystems and Management Pub Date : 2012-03-27 DOI: 10.22230/jem.2012v13n1a152

Sean R. Haughian, P. Burton, S. Taylor, C. Curry

{"title":"Expected Effects of Climate Change on Forest Disturbance Regimes in British Columbia","authors":"Sean R. Haughian, P. Burton, S. Taylor, C. Curry","doi":"10.22230/jem.2012v13n1a152","DOIUrl":"https://doi.org/10.22230/jem.2012v13n1a152","url":null,"abstract":"Projections for forest disturbance and damage under a changing climate in British Columbia are summarized, with the objective of collating regionally specific expectations so that land managers can take pro-active steps to avoid or adapt to the changes expected. While some projections are based on extrapolations of recent multi-decadal trends, most are based on global climate models (GCMs) that must make assumptions about the range of CO2 emissions and the status of atmospheric greenhouse gas emissions over the next century. Regardless of emission scenarios, it is universally expected that British Columbia will experience warmer air temperatures, coupled with more precipitation in some regions and less in others. Forest fires are expected to be more frequent and more intense in the southern half of the province and in the Taiga Plains, but less important in other portions of the province. Forest insects and fungal pathogens are expected to more fully occupy the current range of their host tree species and expand ranges northward and to higher elevations along with their hosts. More frequent and detrimental pest outbreaks are expected in some regions when several years of favourable weather align. Wind damage, floods, and landslides can be expected to increase on terrain where they are already a risk factor. For many agents of tree mortality, expected changes in disturbance regime amount to an expansion or shifting of the seasonal window of activity, sometimes with different trends projected for different seasons and different regions of the province. The prediction of future forest disturbance regimes is in its infancy, requiring a much more concerted effort in compiling both empirical and simulated data, but managers may wish to adjust plans accordingly where there is largely a consensus among current and projected trends. ","PeriodicalId":129797,"journal":{"name":"Journal of Ecosystems and Management","volume":"112 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113999741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 49

Raising the Bar: Recognizing the Intricacies of Cultural and Ecological Knowledge (CEK) in Natural Resource Management 提高标准:认识自然资源管理中文化和生态知识(CEK)的复杂性

Journal of Ecosystems and Management Pub Date : 2012-02-14 DOI: 10.22230/jem.2011v12n3a48

D. Orcherton

{"title":"Raising the Bar: Recognizing the Intricacies of Cultural and Ecological Knowledge (CEK) in Natural Resource Management","authors":"D. Orcherton","doi":"10.22230/jem.2011v12n3a48","DOIUrl":"https://doi.org/10.22230/jem.2011v12n3a48","url":null,"abstract":"In these rather tumultuous social and economic times, Aboriginal groups and natural resource practitioners often express the real need to look more closely at the importance and complexities of cultural ecological knowledge (CEK). To understand these intricacies and apply these principles on the ground, some theoretical constructs and practical examples need to be highlighted. Such constructs and examples can help explain the divergent world views of Indigenous knowledge and Western science within natural resource management. The objective of this article is to synthesize current literature and contemporary thought on the importance and complexities of cultural ecological knowledge (CEK) in natural resource management. In addition, it examines practical examples of the differences and similarities between Indigenous knowledge and Western science. The scope of this article is the breadth of understanding of Indigenous peoples and non-Indigenous Western scientists the world over, with the intended audience being natural resource managers, scientists/academics, and traditional knowledge practitioners. The author takes the position that natural resource managers should create social legitimacy processes through collaborative learning and systems-thinking approaches. These processes can often be validated through transfer of oral and written “ways of knowing,” even when there are divergent world views. Success relies on designing clear objectives and outcomes when incorporating cultural/ecological knowledge in resource management as well as implementing systematic and culturally sensitive heritage assessments and characterizing cultural pluralism. Finally, there is a need for managers to incorporate CEK and to facilitate legislative, political, and ethical processes that help create social and cultural legitimacy in natural resource management.","PeriodicalId":129797,"journal":{"name":"Journal of Ecosystems and Management","volume":"486 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122170127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Stumpage and Tenure Issues Affecting Wildland Urban Interface Fuel Treatments in British Columbia 影响不列颠哥伦比亚省荒地城市界面燃料处理的树桩和使用权问题

Journal of Ecosystems and Management Pub Date : 2012-02-06 DOI: 10.22230/jem.2011v12n3a175

Tom Hobby

引用次数: 0

Growth and Yield of Interior Spruce: Filling In the Blanks 室内云杉的生长和产量：填补空白

Journal of Ecosystems and Management Pub Date : 2012-02-06 DOI: 10.22230/jem.2011v12n3a182

Oscar García

引用次数: 1

Ecological Restoration in Lillooet 利鲁伊特的生态恢复

Journal of Ecosystems and Management Pub Date : 2012-02-06 DOI: 10.22230/jem.2011v12n3a183

D. Gayton

引用次数: 0

Eco-health, Ecosystems, and Watersheds Workshop, Merritt BC, October 19 & 20, 2011 生态健康、生态系统和流域研讨会，不列颠哥伦比亚省梅里特，2011 年 10 月 19 日和 20 日

Journal of Ecosystems and Management Pub Date : 2012-01-19 DOI: 10.22230/jem.2011v12n3a181

E. Simmons

引用次数: 0

British Columbia Ecological Services Initiative 不列颠哥伦比亚省生态服务倡议

Journal of Ecosystems and Management Pub Date : 2012-01-09 DOI: 10.22230/jem.2011v12n3a163

Joey Chopra, Tegan Adams, David J. Zehnder

引用次数: 2

Carbon Management in British Columbia’s Forests: An Update on Opportunities and Challenges 不列颠哥伦比亚省森林的碳管理:机遇与挑战的最新进展

Journal of Ecosystems and Management Pub Date : 2011-12-29 DOI: 10.22230/jem.2011v12n3a157

M. Greig, G. Bull

{"title":"Carbon Management in British Columbia’s Forests: An Update on Opportunities and Challenges","authors":"M. Greig, G. Bull","doi":"10.22230/jem.2011v12n3a157","DOIUrl":"https://doi.org/10.22230/jem.2011v12n3a157","url":null,"abstract":"Forest carbon management is rapidly evolving in British Columbia. The province is perhaps the most active jurisdiction on this front in Canada as it seeks to meet the requirements of its new suite of greenhouse gas legislation, regulations, and policies that influence the management of forest carbon.This report provides an update since 2008 on British Columbia's position on managing for greenhouse gas emissions, with a focus on the role of forests. Essentially, it is an update of Carbon Management in British Columbia's Forests: Opportunities and Challenges, published as FORREX Series No. 24 (Greig and Bull 2008).This report includesa summary of legislative changes since late 2007;a review of the evolving institutional and market rules needed for the further development of a carbon offset market, which would include forests;some recent advances in forest carbon management in the province; andimportant opportunities and challenges that lay ahead.Forest carbon management policy and practices will continue to evolve. Forest carbon is now a recognized forest value, at both the carbon offset project level and the sustainable forest management landscape level. Although many pieces of forest carbon management are in place, more work is required to realize the full potential. It is clear that British Columbia's vast forests represent a significant opportunity to manage greenhouse gas emissions and mitigate climate change.","PeriodicalId":129797,"journal":{"name":"Journal of Ecosystems and Management","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122324526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Assisted Migration: Adapting Forest Management to a Changing Climate 协助迁移:使森林管理适应气候变化

Journal of Ecosystems and Management Pub Date : 2011-11-22 DOI: 10.22230/jem.2011v12n3a91

Susan M. Leech, P. L. Almuedo, G. O'neill

{"title":"Assisted Migration: Adapting Forest Management to a Changing Climate","authors":"Susan M. Leech, P. L. Almuedo, G. O'neill","doi":"10.22230/jem.2011v12n3a91","DOIUrl":"https://doi.org/10.22230/jem.2011v12n3a91","url":null,"abstract":"Forestry practitioners are increasingly interested in how to adapt practices to accommodate predicted changes in climate. One forest management option involves helping tree species and seed sources (populations) track the movement of their climates through “assisted migration”: the purposeful movement of species to facilitate or mimic natural population or range expansion. In this paper, we discuss assisted migration as a climate change adaptation strategy within forest management. Substantial evidence suggests that most tree species will not be able to adapt through natural selection or migrate naturally at rates sufficient to keep pace with climate change, leaving forests susceptible to forest health risks and reduced productivity. We argue that assisted migration is a prudent, proactive, inexpensive strategy that exploits finely tuned plant-climate adaptations wrought through millennia of natural selection to help maintain forest resilience, health and productivity in a changing climate. Seed migration distances being considered in operational forestry in British Columbia are much shorter than migration distances being contemplated in many conservation biology efforts and are informed by decades of field provenance testing. Further,only migrations between similar biogeoclimatic units are under discussion. These factors reduce considerably the risk of ecological disturbance associated with assisted migration. To facilitate the discussion of assisted migration, we present three forms of assisted migration, and discuss how assisted migration is being considered internationally, nationally, and provincially. Finally, we summarize policy and research needs and provide links to other resources for further reading.","PeriodicalId":129797,"journal":{"name":"Journal of Ecosystems and Management","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129912352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 43

Effects of Cattle Grazing on Birds in Interior Douglas-Fir (Pseudotsuga Menziesii) Forests of British Columbia 牛放牧对不列颠哥伦比亚省道格拉斯冷杉林内鸟类的影响

Journal of Ecosystems and Management Pub Date : 2011-11-18 DOI: 10.22230/jem.2011v12n3a82

Ivy B. J. Whitehorne, M. Harrison, N. Mahony, Pat Robinson, A. Newbury, D. Green

{"title":"Effects of Cattle Grazing on Birds in Interior Douglas-Fir (Pseudotsuga Menziesii) Forests of British Columbia","authors":"Ivy B. J. Whitehorne, M. Harrison, N. Mahony, Pat Robinson, A. Newbury, D. Green","doi":"10.22230/jem.2011v12n3a82","DOIUrl":"https://doi.org/10.22230/jem.2011v12n3a82","url":null,"abstract":"Livestock grazing is a dominant land use across North America and although the effects of grazing on birds have been studied in grassland, shrubland, and riparian habitats, studies of the effects in forests are rare. We investigated the effects of cattle grazing in forests on vegetation, the relationships between vegetation characteristics and the abundance of foraging and nesting guilds of birds, and the overall effects of grazing on the bird community in the Interior Douglas-fir (Pseudotsuga menziesii) biogeoclimatic zone of British Columbia. Cattle grazing was associated with reduction in ground vegetation height and grass cover, and increases in the number of shrubs and saplings. Bark insectivores, foliage insectivores, cavity nesters, and shrub/tree nesters all responded positively to sapling density. However, this translated into few overall effects of cattle grazing on birds, with only bark insectivores exhibiting greater abundance on grazed areas. Grazed areas also had fewer aerial insectivores but the mechanism driving this remains unclear. Current forest grazing practices at our study sites appear to have few negative effects on bird abundance and diversity, with the possible exception of aerial insectivores. Study of additional sites is required to assess if forest grazing exerts similar effects throughout the Interior Douglas-fir forest. Furthermore, study of the effects of forest grazing on productivity and survival of birds is needed.","PeriodicalId":129797,"journal":{"name":"Journal of Ecosystems and Management","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130772220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5