US-Mexico Dissertation Enhancement: Changes in Community Structure and Ecosystem Processes in Response to Armored Catfish Invasion

美国-墨西哥论文增强:针对装甲鲶鱼入侵的群落结构和生态系统过程的变化

基本信息

项目摘要

Although invasive grazing organisms have been introduced throughout the globe, little is understood about the effects of exotic grazers on nutrient cycling and other key ecosystem processes. The major objectives of this doctoral dissertation enhancement project are to examine whether exotic armored catfish alter nutrient cycling and primary productivity, decrease food quality and quantity for native species, and reduce native biodiversity of invertebrates and fishes in invaded tropical ecosystems. Graduate student Krista Capps, under the mentorship of Dr. Alexander Flecker, will study the impacts of armored catfishes on rivers systems in the Grijalva-Usumacinta watershed, a biologically and culturally diverse region in southern Mexico. The research will be done in collaboration with Dr. Rocío Rodiles-Hernández of the Colegio de la Frontera Sur (ECOSUR) in San Cristobal de las Casas, Mexico. The products generated by this study will include: 1) an experimental framework to assess the effects of invasive grazing organisms, 2) an understanding of how exotic armored catfish retain and process nutrients, 3) biological and chemical surveys of armored catfish invasion sites, and 4) enhanced biodiversity knowledge of the Grijalva-Usumacinta watershed through the creation and enhancement of biological collections.The introduction of non-native species is one of the greatest threats to species diversity and ecosystem function throughout the world. This study will directly contribute to the general understanding of exotic grazing organisms and their effects on ecosystem health. Since armored catfish invasion has been linked to the collapse of freshwater fisheries in the Usumacinta watershed region, knowledge derived from this study will also have extensive management implications. The research team will collaborate with the Mexican National Institute of Anthropology and History to promote management of exotic armored catfish populations, and will enhance the biodiversity knowledge of freshwater organisms in and around Palenque National Park, a UNESCO World Heritage Site.
虽然入侵性食草生物已被引入到地球仪的各个角落,但人们对外来食草动物对养分循环和其他关键生态系统过程的影响知之甚少。 这个博士论文增强项目的主要目标是检查是否外来装甲鲶鱼改变营养循环和初级生产力,降低食物质量和数量的本地物种,并减少本地生物多样性的无脊椎动物和鱼类入侵热带生态系统。 在亚历山大弗莱克博士的指导下,研究生克里斯塔·卡普斯将研究盔甲鲶鱼对墨西哥南部生物和文化多样性地区格里哈尔瓦-乌苏马辛塔流域河流系统的影响。 这项研究将与墨西哥圣克里斯托瓦尔德拉斯卡萨斯的南部边境学院(ECOSUR)的Rocío Rodiles-Hernández博士合作完成。 本研究生成的产品将包括:1)评估入侵放牧生物影响的实验框架,2)了解外来装甲鲶鱼如何保留和处理营养物质,3)装甲鲶鱼入侵地点的生物和化学调查,4)通过建立和加强生物收藏,提高对Grijalva-Usumacinta流域生物多样性的认识。本地物种是全世界物种多样性和生态系统功能面临的最大威胁之一。 本研究将直接有助于了解外来放牧生物及其对生态系统健康的影响。 由于装甲鲶鱼入侵已与乌苏马辛塔流域淡水渔业的崩溃,从这项研究中获得的知识也将有广泛的管理意义。 该研究小组将与墨西哥国家人类学和历史研究所合作,促进对外来装甲鲶鱼种群的管理,并将提高对联合国教科文组织世界遗产国家公园帕伦克及其周围淡水生物的生物多样性知识。

项目成果

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Alexander Flecker其他文献

Alexander Flecker的其他文献

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{{ truncateString('Alexander Flecker', 18)}}的其他基金

Dissertation Research: Nitrogen to phosporus ratio as a driver of arsenic retention
论文研究:氮磷比作为砷保留的驱动因素
  • 批准号:
    1701839
  • 财政年份:
    2017
  • 资助金额:
    $ 1.39万
  • 项目类别:
    Standard Grant
DISSERTATION RESEARCH: Highly unsaturated fatty acid transfer from aquatic to terrestrial food webs
论文研究:高度不饱和脂肪酸从水生食物网转移到陆地食物网
  • 批准号:
    1500997
  • 财政年份:
    2015
  • 资助金额:
    $ 1.39万
  • 项目类别:
    Standard Grant
Collaborative Research: RAPID - Effects of an Extreme Disturbance Event on Genomic Variation and Community Organization of Stream Insects
合作研究:RAPID - 极端干扰事件对溪流昆虫基因组变异和群落组织的影响
  • 批准号:
    1434987
  • 财政年份:
    2014
  • 资助金额:
    $ 1.39万
  • 项目类别:
    Standard Grant
Dissertation Research: Assessing the role of rapid evolution in trait-mediated predator effects on communities and ecosystems
论文研究:评估快速进化在特征介导的捕食者对群落和生态系统的影响中的作用
  • 批准号:
    1310745
  • 财政年份:
    2013
  • 资助金额:
    $ 1.39万
  • 项目类别:
    Standard Grant
Dimensions: Collaborative Research: An Integrative Traits-Based Approach to Predicting Variation in Vulnerability of Tropical and Temperate Stream Biodiversity to Climate Change
维度:合作研究:基于综合性状的方法来预测热带和温带河流生物多样性对气候变化的脆弱性变化
  • 批准号:
    1045960
  • 财政年份:
    2011
  • 资助金额:
    $ 1.39万
  • 项目类别:
    Standard Grant
DISSERTATION RESEARCH: Ecological Role of Fish in Southwestern Streams
论文研究:西南河流中鱼类的生态作用
  • 批准号:
    0807413
  • 财政年份:
    2008
  • 资助金额:
    $ 1.39万
  • 项目类别:
    Standard Grant
DISSERTATION RESEARCH: Linking Hydrologic Disturbance and Stoichiometric Balance in Benthic Systems
论文研究:将水文扰动与底栖系统中的化学计量平衡联系起来
  • 批准号:
    0710031
  • 财政年份:
    2007
  • 资助金额:
    $ 1.39万
  • 项目类别:
    Standard Grant
Dissertation Enhancement Research: A Functional Trait Approach to Assessing Diversity in Tropical Fish Communities
论文增强研究:评估热带鱼类群落多样性的功能性状方法
  • 批准号:
    0321443
  • 财政年份:
    2003
  • 资助金额:
    $ 1.39万
  • 项目类别:
    Standard Grant
COLLABORATIVE RESEARCH: Migratory Fish as Material and Functional Linkages Across Tropical Andean Landscapes
合作研究:洄游鱼类作为热带安第斯景观的物质和功能联系
  • 批准号:
    0321471
  • 财政年份:
    2003
  • 资助金额:
    $ 1.39万
  • 项目类别:
    Standard Grant
Dissertation Research: Why Does N-Limitation Occur in Some Arctic Lakes? Understanding Controls of N-Fixation
论文研究:为什么一些北极湖泊会出现氮限制?
  • 批准号:
    0206173
  • 财政年份:
    2002
  • 资助金额:
    $ 1.39万
  • 项目类别:
    Standard Grant

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博士论文研究:古典和殖民时期的生计策略 墨西哥尤卡坦半岛塔卡博
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Doctoral Dissertation Improvement Grant: Evaluating Political Competition Between Chacoan- Style Great Houses in the Southern Cibola Region, West-Central New Mexico
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    $ 1.39万
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