Multiscale ecology and dynamics of the forest-tundra ecotone

森林-苔原交错带的多尺度生态学和动力学

基本信息

  • 批准号:
    371427-2009
  • 负责人:
  • 金额:
    $ 1.38万
  • 依托单位:
  • 依托单位国家:
    加拿大
  • 项目类别:
    Discovery Grants Program - Individual
  • 财政年份:
    2010
  • 资助国家:
    加拿大
  • 起止时间:
    2010-01-01 至 2011-12-31
  • 项目状态:
    已结题

项目摘要

The transition from forest to tundra in arctic and alpine regions - referred to as the 'forest-tundra ecotone' and punctuated by the upper limit of tree growth, known as 'treeline' - is expected to advance significantly as climate warming continues, with serious implications for biodiversity and earth-system processes. Research on the ecological processes that influence its dynamics, as well as responses to past climate change, is critical for improving forecasts of landscape change and understanding its ecological consequences. This program integrates field ecology with geospatial analysis to study the forest-tundra of northwestern Canada at multiple spatial and temporal scales. Research over the next five years will endeavour to answer two thematic questions: (1) How has the forest-tundra responded to climatic change and variability in the past?, and (2) What are the suite of physical and biological variables that influence the establishment and growth of trees and shrubs across the ecotone and, importantly, how do they interact to influence treeline dynamics? Investigations will focus on the altitudinal ecotone of southwest Yukon and the latitudinal ecotone of central Northwest Territories with the ancillary goal of comparing the two types of transitions. Methods and techniques range from plant-level measures of growth and physiology within experimental treatments, community-level investigations of population dynamics and species interactions, and landscape-scale measures of spatial pattern and ecosystem processes using remote sensing and GIS. Interdisciplinary training of students is a significant component of the research program. At least five Master's students and two Ph.D. students will be supported during the grant period and at least two undergraduate students will be hired annually as field and lab assistants. Individual projects are likely to focus on a specific scale and will act as the foundation of student training. The most novel scientific contribution of the program will be the integration of these projects in a hierarchical fashion to elucidate the cross-scale pattern-process relationships that create and shape ecotones and influence their dynamics.
随着气候持续变暖,北极和高山地区从森林向苔原的转变(称为“森林-苔原生态交错带”)预计将显着推进,对生物多样性和地球系统过程产生严重影响。研究影响其动态的生态过程以及对过去气候变化的反应对于改进景观变化的预测和了解其生态后果至关重要。该计划将野外生态学与地理空间分析相结合,在多个空间和时间尺度上研究加拿大西北部的森林苔原。未来五年的研究将努力回答两个主题问题:(1)森林苔原如何应对过去的气候变化和变率?(2)影响整个生态交错带树木和灌木的建立和生长的物理和生物变量有哪些,更重要的是,它们如何相互作用以影响林线动态?调查将集中于育空地区西南部的纬度交错带和西北地区中部的纬度交错带,辅助目标是比较这两种类型的过渡。方法和技术包括实验处理中植物生长和生理学的测量、种群动态和物种相互作用的群落水平调查,以及利用遥感和地理信息系统对空间格局和生态系统过程进行景观尺度测量。学生的跨学科培训是研究计划的重要组成部分。至少五名硕士生和两名博士生。学生将在资助期间得到支持,每年至少聘用两名本科生作为现场和实验室助理。个别项目可能会专注于特定规模,并将作为学生培训的基础。该计划最新颖的科学贡献将以分层方式整合这些项目,以阐明创建和塑造生态交错带并影响其动态的跨尺度模式过程关系。

项目成果

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Danby, Ryan其他文献

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{{ truncateString('Danby, Ryan', 18)}}的其他基金

Multiscale ecology and dynamics of the forest-tundra ecotone
森林-苔原交错带的多尺度生态学和动力学
  • 批准号:
    371427-2009
  • 财政年份:
    2014
  • 资助金额:
    $ 1.38万
  • 项目类别:
    Discovery Grants Program - Individual
Ecological investigations at treeline in southwest Yukon and central Northwest Territories
育空地区西南部和西北地区中部林线的生态调查
  • 批准号:
    378038-2009
  • 财政年份:
    2014
  • 资助金额:
    $ 1.38万
  • 项目类别:
    Discovery Grants Program - Northern Research Supplement
Multiscale ecology and dynamics of the forest-tundra ecotone
森林-苔原交错带的多尺度生态学和动力学
  • 批准号:
    371427-2009
  • 财政年份:
    2012
  • 资助金额:
    $ 1.38万
  • 项目类别:
    Discovery Grants Program - Individual
Ecological investigations at treeline in southwest Yukon and central Northwest Territories
育空地区西南部和西北地区中部林线的生态调查
  • 批准号:
    378038-2009
  • 财政年份:
    2012
  • 资助金额:
    $ 1.38万
  • 项目类别:
    Discovery Grants Program - Northern Research Supplement
Ecological investigations at treeline in southwest Yukon and central Northwest Territories
育空地区西南部和西北地区中部林线的生态调查
  • 批准号:
    378038-2009
  • 财政年份:
    2011
  • 资助金额:
    $ 1.38万
  • 项目类别:
    Discovery Grants Program - Northern Research Supplement
Multiscale ecology and dynamics of the forest-tundra ecotone
森林-苔原交错带的多尺度生态学和动力学
  • 批准号:
    371427-2009
  • 财政年份:
    2011
  • 资助金额:
    $ 1.38万
  • 项目类别:
    Discovery Grants Program - Individual
Ecological investigations at treeline in southwest Yukon and central Northwest Territories
育空地区西南部和西北地区中部林线的生态调查
  • 批准号:
    378038-2009
  • 财政年份:
    2010
  • 资助金额:
    $ 1.38万
  • 项目类别:
    Discovery Grants Program - Northern Research Supplement
Multiscale ecology and dynamics of the forest-tundra ecotone
森林-苔原交错带的多尺度生态学和动力学
  • 批准号:
    371427-2009
  • 财政年份:
    2009
  • 资助金额:
    $ 1.38万
  • 项目类别:
    Discovery Grants Program - Individual
Ecological investigations at treeline in southwest Yukon and central Northwest Territories
育空地区西南部和西北地区中部林线的生态调查
  • 批准号:
    378038-2009
  • 财政年份:
    2009
  • 资助金额:
    $ 1.38万
  • 项目类别:
    Discovery Grants Program - Northern Research Supplement

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