BIOCOMPLEXITY -- INCUBATION ACTIVITY: Developing conceptual and mathematical approaches to model transport and transformation of elements through a geothermal landscape

生物复杂性——孵化活动：开发概念和数学方法来模拟元素通过地热景观的传输和转化

• 批准号: 0083880
• 负责人: Patricia JS Colberg
• 金额: $ 10万
• 依托单位: University of Wyoming
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-10-01 至 2003-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0083880&HistoricalAwards=false
• 关键词: BIOCOMPLEXITY; INCUBATION; ACTIVITY; Developing; conceptual

Colberg0083880It has long been hypothesized that interactions between biotic and abiotic processes at small scales affect the movement and fate of elements at large scales, yet, to date, this relationship has not been systematically explored in aquatic ecosystems. One of the major challenges of such work is to quantitatively integrate the biological and physicochemical controls at small scales (i.e., microbial communities) with those of larger scales (i.e., river networks), so that we can begin to address some of the unifying questions that characterize biocomplexity research.Rivers in Yellowstone National Park are ideal systems in which to examine the interactions of biotic and abiotic complexity. The Upper Madison River drainage, for example, is strongly influenced by geothermal activity that produces sharp spatial gradients involving temperature, redox potential, major ions, and trace elements. These physicochemical features, in turn, drive changes in mocrobial and metazoan diversity and functions. Unlike hot springs, which have been intensively studied in recent years, streams and rivers in this unique geothermal landscape remain much less examined. Because geothermal inputs are spatially variable along these rivers, the inputs and reactions of elements (e.g., irons, phosphorus, carbon, nitrogen) are also expected to exhibit spatial variability that will affect the distribution and composition of biological communities.The objectives of the proposed incubation activities are to: (1) develop new research interactions that will facilitate biocomplexity research along geothermal gradients in Yellowstone National Park; (2) develop a scientific database on the Upper Madison Basin; and (3) organize and sponsor two workshops for the project team and their students that will focus on mathematical modeling and linking biological community structure with ecosystem function, respectively.

Colberg 0083880长期以来，人们一直认为小尺度上的生物和非生物过程之间的相互作用会影响大尺度上元素的运动和归宿，然而，迄今为止，这种关系尚未在水生生态系统中得到系统的研究。 这种工作的主要挑战之一是在小规模（即，微生物群落）与较大规模的那些（即，河流网络），这样我们就可以开始解决一些表征生物复杂性研究的统一问题。黄石国家公园的河流是研究生物和非生物复杂性相互作用的理想系统。 例如，上麦迪逊河流域受到地热活动的强烈影响，地热活动产生了涉及温度、氧化还原电位、主要离子和微量元素的急剧空间梯度。 这些物理化学特征反过来又驱动了微生物和后生动物多样性和功能的变化。 与近年来被广泛研究的温泉不同，这一独特地热景观中的溪流和河流仍然很少被研究。 由于地热输入沿这些河流沿着是空间可变的，因此元素的输入和反应（例如，拟议的孵化活动的目标是：（1）发展新的研究互动，促进对黄石国家公园内沿着地热梯度的生物复杂性研究;（2）建立关于上麦迪逊盆地的科学数据库;（3）建立一个关于生物多样性的科学数据库。以及（3）为项目组及其学生组织和赞助两个研讨会，分别侧重于数学建模和将生物群落结构与生态系统功能联系起来。