DISSERTATION RESEARCH: Complex Effects of Humans and Piscivores on Fish Assemblages in a Speciose Tropical River
论文研究:人类和食鱼动物对热带河流中鱼类群落的复杂影响
基本信息
- 批准号:0411978
- 负责人:
- 金额:$ 0.8万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2004
- 资助国家:美国
- 起止时间:2004-06-01 至 2005-05-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Much of the world's species diversity is located in tropical and sub-tropical ecosystems, and a better understanding of the ecology of these systems is necessary to help stem biodiversity loss and assess community- and ecosystem-level responses to anthropogenic impacts. In this study, we will examine how the interaction between two species, the peacock bass and piranha, may render the peacock bass more susceptible to commercial net fishing. We hypothesize that piranha restrict peacock bass to near-shore habitats, an area where they can be readily exploited by netters. In large-scale (~ca. 500m2) experimental areas, we will examine if peacock bass move into shallower water in the presence of piranha than they otherwise would. Further, we will examine if the behavioral response of peacock bass has cascading effects on lower trophic levels, that is, composition of prey fish assemblages are different when peacock bass are restricted to shallow water. Experimental manipulations will be combined with landscape-scale surveys to examine the distribution of peacock bass, piranha, and the dominant prey of these species. These data will be incorporated with extensive stomach content and isotope analyses, to provide detailed information of food web structure in a species-rich tropical river. By describing human impacts within a food web context, we endeavor to provide predictive power regarding a specific environmental problem, yet still allowing for generality that will broaden the theoretical foundations and applications of food web ecology.
世界上大部分物种多样性位于热带和亚热带生态系统中,有必要更好地了解这些系统的生态,以帮助遏制生物多样性的丧失,并评估社区和生态系统一级对人为影响的反应。在这项研究中,我们将研究两个物种之间的相互作用,孔雀鱼和食人鱼,可能会使孔雀鱼更容易受到商业网捕的影响。我们假设食人鱼将孔雀鱼限制在近岸栖息地,在那里它们很容易被网民利用。在大规模(约500平方米)的实验区,我们将研究孔雀鱼在有食人鱼存在的情况下是否会进入较浅的水域。此外,我们将研究孔雀鱼的行为反应是否对较低的营养水平具有级联效应,即当孔雀鱼被限制在浅水时,捕食鱼组合的组成不同。实验操作将与景观规模的调查相结合,以检查孔雀鱼、食人鱼和这些物种的主要猎物的分布。这些数据将与广泛的胃内容物和同位素分析相结合,以提供物种丰富的热带河流中食物网络结构的详细信息。通过描述食物网络背景下的人类影响,我们努力提供对特定环境问题的预测能力,但仍允许一般性,这将拓宽食物网络生态的理论基础和应用。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
数据更新时间:{{ journalArticles.updateTime }}
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
Kirk Winemiller其他文献
Kirk Winemiller的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('Kirk Winemiller', 18)}}的其他基金
Collaborative Research: Track 1, IRES sites: International Research Experience for Students in Freshwater Ecosystems at the Epicenter of Neotropical Biodiversity, Guiana Shield
合作研究:轨道 1,IRES 站点:圭亚那地盾新热带生物多样性中心淡水生态系统学生的国际研究经验
- 批准号:
2153453 - 财政年份:2022
- 资助金额:
$ 0.8万 - 项目类别:
Standard Grant
REU Site: Ecohydrology of Tropical Montane Forests -- Diversity in Science, Interdisciplinary Breadth, and Global Awareness
REU 网站:热带山地森林的生态水文学——科学多样性、跨学科广度和全球意识
- 批准号:
1659848 - 财政年份:2017
- 资助金额:
$ 0.8万 - 项目类别:
Standard Grant
DISSERTATION RESEARCH: Global patterns of fish functional diversity and trait convergence along species richness and environmental gradients
论文研究:鱼类功能多样性和性状趋同随物种丰富度和环境梯度的全球模式
- 批准号:
1601687 - 财政年份:2016
- 资助金额:
$ 0.8万 - 项目类别:
Standard Grant
Collaborative Research: Baseline Survey of the Lower Xingu River Rapids, Brazil: a Highly Diverse, Globally Unique, and Immediately Imperiled Ecosystem
合作研究:巴西辛古河下游急流的基线调查:一个高度多样化、全球独特且立即面临危险的生态系统
- 批准号:
1256090 - 财政年份:2013
- 资助金额:
$ 0.8万 - 项目类别:
Continuing Grant
DISSERTATION RESEARCH: Fish assemblage structure and functional trait diversity along a longitudinal fluvial gradient
论文研究:沿纵向河流梯度的鱼类组合结构和功能性状多样性
- 批准号:
0808523 - 财政年份:2008
- 资助金额:
$ 0.8万 - 项目类别:
Standard Grant
Adaptive Radiation and Evolutionary Convergence in Neotropical Cichlids
新热带慈鲷的适应性辐射和进化趋同
- 批准号:
0516831 - 财政年份:2005
- 资助金额:
$ 0.8万 - 项目类别:
Standard Grant
UMEB: Undergraduate Training in Ecological and Evolutionary Approaches to Complex Environmental Problems
UMEB:复杂环境问题的生态和进化方法本科培训
- 批准号:
0203992 - 财政年份:2002
- 资助金额:
$ 0.8万 - 项目类别:
Standard Grant
Dissertation Research: Evaluation of a Hypothetical Model of Local Community Assembly in a Temporally Dynamic, Species Rich Neotropical River
论文研究:对时间动态、物种丰富的新热带河流中当地社区集会假设模型的评估
- 批准号:
0107456 - 财政年份:2001
- 资助金额:
$ 0.8万 - 项目类别:
Standard Grant
Variable Effects of Nutrients, Productivity, Consumption and the Food Pulse on Floodplain River Ecosystems
养分、生产力、消费和食物脉动对洪泛区河流生态系统的可变影响
- 批准号:
0089834 - 财政年份:2001
- 资助金额:
$ 0.8万 - 项目类别:
Standard Grant
Symposium-Workshop on Fish Ecology in Latin America; May 27-June 2, 1993; Austin, Texas
拉丁美洲鱼类生态学研讨会-研讨会;
- 批准号:
9223931 - 财政年份:1993
- 资助金额:
$ 0.8万 - 项目类别:
Standard Grant
相似国自然基金
Research on Quantum Field Theory without a Lagrangian Description
- 批准号:24ZR1403900
- 批准年份:2024
- 资助金额:0.0 万元
- 项目类别:省市级项目
Cell Research
- 批准号:31224802
- 批准年份:2012
- 资助金额:24.0 万元
- 项目类别:专项基金项目
Cell Research
- 批准号:31024804
- 批准年份:2010
- 资助金额:24.0 万元
- 项目类别:专项基金项目
Cell Research (细胞研究)
- 批准号:30824808
- 批准年份:2008
- 资助金额:24.0 万元
- 项目类别:专项基金项目
Research on the Rapid Growth Mechanism of KDP Crystal
- 批准号:10774081
- 批准年份:2007
- 资助金额:45.0 万元
- 项目类别:面上项目
相似海外基金
Doctoral Dissertation Research: Patient-Led Research Practices in Complex Chronic Illness Communities
博士论文研究:复杂慢性疾病社区中患者主导的研究实践
- 批准号:
2116342 - 财政年份:2021
- 资助金额:
$ 0.8万 - 项目类别:
Standard Grant
Doctoral dissertation research: The encoding, maintenance and retrieval of complex linguistic representations in working memory
博士论文研究:工作记忆中复杂语言表征的编码、维护和检索
- 批准号:
2116952 - 财政年份:2021
- 资助金额:
$ 0.8万 - 项目类别:
Standard Grant
Doctoral Dissertation Research: Contextual and physiological correlates of complex behavioral strategies in primates
博士论文研究:灵长类动物复杂行为策略的背景和生理相关性
- 批准号:
1847848 - 财政年份:2019
- 资助金额:
$ 0.8万 - 项目类别:
Standard Grant
Doctoral Dissertation Research: The Interaction of Transitivity Alternations and Verbal Affix Stacking in a Morphologically Complex Language
博士论文研究:形态复杂语言中及物性交替与动词词缀堆叠的相互作用
- 批准号:
1918028 - 财政年份:2019
- 资助金额:
$ 0.8万 - 项目类别:
Standard Grant
Doctoral Dissertation Research Award: Characterization of Complex Forager Society
博士论文研究奖:复杂采集者社会的表征
- 批准号:
1838381 - 财政年份:2018
- 资助金额:
$ 0.8万 - 项目类别:
Standard Grant
Doctoral Dissertation Research: Documenting Tense, Aspect, Mood and Polarity in a Language with a Complex Verbal System
博士论文研究:记录具有复杂言语系统的语言的时态、体、语气和极性
- 批准号:
1830273 - 财政年份:2018
- 资助金额:
$ 0.8万 - 项目类别:
Standard Grant
DISSERTATION RESEARCH: Biotic interactions and the geographic range limit of Clarkia xantiana across a complex environmental gradient
论文研究:复杂环境梯度下的生物相互作用和 Clarkia xantiana 的地理范围限制
- 批准号:
1701072 - 财政年份:2017
- 资助金额:
$ 0.8万 - 项目类别:
Standard Grant
Doctoral Dissertation Research: The Ontogeny of Complex Tool Use in Great Apes
博士论文研究:类人猿复杂工具使用的个体发育
- 批准号:
1613596 - 财政年份:2016
- 资助金额:
$ 0.8万 - 项目类别:
Standard Grant
DISSERTATION RESEARCH: The Genomics of Hybrid Sterility & Speciation in the Anopheles gambiae Species Complex
论文研究:杂交不育的基因组学
- 批准号:
1601675 - 财政年份:2016
- 资助金额:
$ 0.8万 - 项目类别:
Standard Grant
DISSERTATION RESEARCH: Pulsed and Pressed: the Interactive Effects of Disturbance Intensity and Complex Chemical Exposure on the Productivity of Urban Stream Ecosystems
论文研究:脉冲和压力:扰动强度和复杂化学品暴露对城市河流生态系统生产力的交互影响
- 批准号:
1601579 - 财政年份:2016
- 资助金额:
$ 0.8万 - 项目类别:
Standard Grant