Habitat filter, priority efect and ecological engineering (feedbacks) of dominant species in post-fire succession

火后演替中优势种的栖息地过滤、优先效应和生态工程(反馈)

基本信息

  • 批准号:
    46483-2009
  • 负责人:
  • 金额:
    $ 1.75万
  • 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

Logging and fire in the nutrient poor black spruce-Kalmia forest of eastern Canada often leads to extensive ericaceous heath formation, which interferes with conifer regeneration. Not enough is known about the duration and dynamics of the ericaceous heath. Some suggest it lasts for several years to several decades others suggest alternate stable states based on tree ring and paleocological evidence. This understanding is critical in sustainable forest management and conservation. Failure or delay in conifer regeneration translates into loss of forest productivity and transformation of multi-layered forest to simplified low growing heathland. Limited areas of Kalmia heath in the US is reported to harbor disproportionately large number of rare species. Kalmia heath as a habitat for rare species has not been tested in Canada. The long-term goal of my research program is to understand the habitat and plant community response to forest disturbance particularly the interactions between the dominant understory and canopy species. I frame my applied research questions into contemporary broader ecological concepts. In the next five years I shall concentrate on four short-term objectives: 1) to test the biophysical property of post-fire seedbed and their habitat filtering thresholds, 2) to determine if post-fire Kalmia heath has distinct growth phases with characteristic species composition including rare plants, 3) to determine the population biology of Kalmia and longevity of Kalmia heath, and 4) to test plant-soil feedback effects of Kalmia and even-aged black spruce on community structure. This research will discover the significance of seedbed filter and priority effect on secondary succession in the boreal forest with ericaceous understory. It will create new knowledge on longevity of Kalmia heath which has significant land management implications in eastern Canada.
在加拿大东部营养贫乏的黑云杉-卡尔米亚森林中,伐木和火灾往往会导致广泛的杜鹃花石南的形成,这干扰了针叶树的再生。对杜鹃花石南的持续时间和动态了解得还不够。有些人认为它会持续几年到几十年,另一些人则认为基于树木年轮和古生物学证据的交替稳定状态。这种认识对于可持续森林管理和养护至关重要。针叶树更新的失败或延迟转化为森林生产力的损失和多层森林转化为简单的低生长石楠地。据报道,美国Kalmia Heath的有限区域拥有不成比例的大量稀有物种。卡尔米亚石南作为稀有物种的栖息地尚未在加拿大进行过测试。我的研究计划的长期目标是了解栖息地和植物群落对森林干扰的反应,特别是优势林下和冠层物种之间的相互作用。我将我的应用研究问题纳入当代更广泛的生态概念。在未来五年,我会集中致力达致四个短期目标:1)测试火后苗床的生物物理特性和它们的生境过滤阈值; 2)确定火后Kalmia石楠是否具有明显的生长阶段和包括稀有植物在内的特征物种组成; 3)确定Kalmia石楠的种群生物学和Kalmia石楠的寿命;(4)测定卡米亚和同龄黑云杉对群落结构的植物-土壤反馈效应。本研究将揭示杜鹃花科植物在北方针叶林次生演替中的滤床作用和优先效应的意义。它将创造新的知识,长寿的卡尔米亚石南,有显着的土地管理影响在加拿大东部。

项目成果

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Mallik, Azim其他文献

Intraspecific trait variation as a mechanism of coexistence of congeneric blueberry (Vaccinium) species after forest harvesting
  • DOI:
    10.1016/j.foreco.2023.121205
  • 发表时间:
    2023-08-14
  • 期刊:
  • 影响因子:
    3.7
  • 作者:
    St Martin, Philippe;Mallik, Azim
  • 通讯作者:
    Mallik, Azim
Control of Panama Disease of Banana by Rotating and Intercropping with Chinese Chive (Allium Tuberosum Rottler): Role of Plant Volatiles
与韭菜轮作和间作防治香蕉巴拿马病:植物挥发物的作用
  • DOI:
    10.1007/s10886-013-0243-x
  • 发表时间:
    2013-02-01
  • 期刊:
  • 影响因子:
    2.3
  • 作者:
    Zhang, Hui;Mallik, Azim;Zeng, Ren Sen
  • 通讯作者:
    Zeng, Ren Sen

Mallik, Azim的其他文献

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{{ truncateString('Mallik, Azim', 18)}}的其他基金

Functional ecology of alternate states of black spruce-Kalmia communities: species traits, niche differentiation and plant-soil feedback
黑云杉-Kalmia群落交替状态的功能生态学:物种特征、生态位分化和植物-土壤反馈
  • 批准号:
    DDG-2020-00024
  • 财政年份:
    2022
  • 资助金额:
    $ 1.75万
  • 项目类别:
    Discovery Development Grant
Functional ecology of alternate states of black spruce-Kalmia communities: species traits, niche differentiation and plant-soil feedback
黑云杉-Kalmia群落交替状态的功能生态学:物种特征、生态位分化和植物-土壤反馈
  • 批准号:
    DDG-2020-00024
  • 财政年份:
    2021
  • 资助金额:
    $ 1.75万
  • 项目类别:
    Discovery Development Grant
Functional ecology of alternate states of black spruce-Kalmia communities: species traits, niche differentiation and plant-soil feedback
黑云杉-Kalmia群落交替状态的功能生态学:物种特征、生态位分化和植物-土壤反馈
  • 批准号:
    DDG-2020-00024
  • 财政年份:
    2020
  • 资助金额:
    $ 1.75万
  • 项目类别:
    Discovery Development Grant
Post-fire habitat conditions as drivers of progressive and retrogressive succession: seedbed filter, species traits and feedback of dominant plants
火后栖息地条件作为进步和倒退演替的驱动因素:苗床过滤、物种特征和优势植物的反馈
  • 批准号:
    RGPIN-2014-06239
  • 财政年份:
    2019
  • 资助金额:
    $ 1.75万
  • 项目类别:
    Discovery Grants Program - Individual
GIS model for riparian forest management in Ontario emulating post-fire residual forest patterns**
安大略省河岸森林管理 GIS 模型模拟火灾后残留森林模式**
  • 批准号:
    536369-2018
  • 财政年份:
    2018
  • 资助金额:
    $ 1.75万
  • 项目类别:
    Engage Grants Program
Post-fire habitat conditions as drivers of progressive and retrogressive succession: seedbed filter, species traits and feedback of dominant plants
火后栖息地条件作为进步和倒退演替的驱动因素:苗床过滤、物种特征和优势植物的反馈
  • 批准号:
    RGPIN-2014-06239
  • 财政年份:
    2017
  • 资助金额:
    $ 1.75万
  • 项目类别:
    Discovery Grants Program - Individual
Post-fire habitat conditions as drivers of progressive and retrogressive succession: seedbed filter, species traits and feedback of dominant plants
火后栖息地条件作为进步和倒退演替的驱动因素:苗床过滤、物种特征和优势植物的反馈
  • 批准号:
    RGPIN-2014-06239
  • 财政年份:
    2016
  • 资助金额:
    $ 1.75万
  • 项目类别:
    Discovery Grants Program - Individual
Post-fire habitat conditions as drivers of progressive and retrogressive succession: seedbed filter, species traits and feedback of dominant plants
火后栖息地条件作为进步和倒退演替的驱动因素:苗床过滤、物种特征和优势植物的反馈
  • 批准号:
    RGPIN-2014-06239
  • 财政年份:
    2015
  • 资助金额:
    $ 1.75万
  • 项目类别:
    Discovery Grants Program - Individual
Post-fire habitat conditions as drivers of progressive and retrogressive succession: seedbed filter, species traits and feedback of dominant plants
火后栖息地条件作为进步和倒退演替的驱动因素:苗床过滤、物种特征和优势植物的反馈
  • 批准号:
    RGPIN-2014-06239
  • 财政年份:
    2014
  • 资助金额:
    $ 1.75万
  • 项目类别:
    Discovery Grants Program - Individual
Habitat filter, priority efect and ecological engineering (feedbacks) of dominant species in post-fire succession
火后演替中优势种的栖息地过滤、优先效应和生态工程(反馈)
  • 批准号:
    46483-2009
  • 财政年份:
    2013
  • 资助金额:
    $ 1.75万
  • 项目类别:
    Discovery Grants Program - Individual

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Habitat filter, priority efect and ecological engineering (feedbacks) of dominant species in post-fire succession
火后演替中优势种的栖息地过滤、优先效应和生态工程(反馈)
  • 批准号:
    46483-2009
  • 财政年份:
    2013
  • 资助金额:
    $ 1.75万
  • 项目类别:
    Discovery Grants Program - Individual
Habitat filter, priority efect and ecological engineering (feedbacks) of dominant species in post-fire succession
火后演替中优势种的栖息地过滤、优先效应和生态工程(反馈)
  • 批准号:
    46483-2009
  • 财政年份:
    2012
  • 资助金额:
    $ 1.75万
  • 项目类别:
    Discovery Grants Program - Individual
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