Natural and Null Food Webs: A Critical Investigation of Biological and Methodological Explanations for Food Web Structure
Natural and Null Food Webs: A Critical Investigation of Biological and Methodological Explanations for Food Web Structure
批准号:
9905446
负责人:
Neo Martinez
金额:
$3.5万
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
1999
资助国家:
美国
项目状态:
已结题
起止时间:
1999-05-01 至 2000-04-30
中文摘要
9905446 Martinez食物网理论正在经历一个范例的转变,从食物网中的尺度不变模式到恒定的连接性和尺度依赖的模式。这项博士后启蒙资助将通过严格和系统地将经验观察到的食物网模式与无效和机械模型产生的模式进行比较,澄清目前尚未确定的这种转变的生物学意义。正如生态学丰富的历史所表明的那样,这种比较对于评估这样一种说法至关重要,即稳健的食物网模式表明了制约生态系统结构和功能的强大生物过程。由于缺乏比较,食物网图案是方法论人工制品的假设需要在对这些图案的生物学基础进行大量研究之前进行系统研究。以前比较天然和零食物网的相对较少的工作表明,生物过程是导致广泛的陆地、水生和海洋生态系统中连接值相对较低的原因。为了描绘这种和其他食物网模式的过程,候选的生物机制将被形式化成构建食物网的计算机模型。以这种方式构建的网将与经验观察到的食物网进行比较。这种比较将表明模拟的机制是否值得进一步的分析和实验研究,作为食物网模式的潜在来源。
英文摘要
9905446MartinezFood-web theory is undergoing a paradigmatic shift from scale-invariant patterns in food webs to constant connectance and scale-dependent patterns. This postdoctoral starter grant will clarify the currently undetermined biological significance of the shift by rigorously and systematically comparing empirically observed food web patterns with patterns generated by null and mechanistic models. As a rich history in ecology has shown, such comparisons are critical to evaluating the claim that robust food web patterns are indicative of powerful biological processes that constrain the structure and function of ecological systems. Lacking the comparisons, the hypothesis that food web patterns are methodological artifacts needs to be systematically studied before much work on the biological basis for the patterns is warranted. The relatively small amount of previous work comparing natural and null food webs suggests that biological processes are responsible for the relatively low value of connectance in a wide range of terrestrial, aquatic and marine ecological systems. In an attempt to delineate the processes responsible for this and other food web patterns, candidate biological mechanisms will be formalized into computer models that construct food webs. Webs constructed in this manner will be compared against empirically observed food webs. This comparison will indicate whether the simulated mechanisms deserve further analytical and experimental investigation as potential sources of food web patterns.
期刊论文(0)
专著(0)
科研奖励(0)
会议论文
OPUS: Synthesizing Ecology with Ecological Networks
-
批准号:1754207
-
项目类别:Standard Grant
-
资助金额:$16.91万
-
财政年份:2018
-
负责人:Neo Martinez
-
依托单位:
OPUS: Synthesizing Ecology with Ecological Networks
-
批准号:1934817
-
项目类别:Standard Grant
-
资助金额:$14.78万
-
财政年份:2018
-
负责人:Neo Martinez
-
依托单位:
CNH: Socio-Ecosystem Dynamics of Human-Natural Networks on Model Islands
-
批准号:1642894
-
项目类别:Standard Grant
-
资助金额:$71.83万
-
财政年份:2015
-
负责人:Neo Martinez
-
依托单位:
CNH: Socio-Ecosystem Dynamics of Human-Natural Networks on Model Islands
-
批准号:1313830
-
项目类别:Standard Grant
-
资助金额:$130.0万
-
财政年份:2013
-
负责人:Neo Martinez
-
依托单位:
Webs on the Web: Internet Database, Analysis, and Visualization of Ecological Networks
-
批准号:0342332
-
项目类别:Continuing Grant
-
资助金额:$144.38万
-
财政年份:2003
-
负责人:Neo Martinez
-
依托单位:
Webs on the Web: Internet Database, Analysis, and Visualization of Ecological Networks
-
批准号:0234980
-
项目类别:Continuing Grant
-
资助金额:$144.38万
-
财政年份:2003
-
负责人:Neo Martinez
-
依托单位:
BIOCOMPLEXITY-- INCUBATION ACTIVITY: Scaling of Network Complexity with Diversity in Food Webs
-
批准号:0083929
-
项目类别:Standard Grant
-
资助金额:$10.0万
-
财政年份:2000
-
负责人:Neo Martinez
-
依托单位:
Instructional Environmental Science Computer Lab
-
批准号:9950461
-
项目类别:Standard Grant
-
资助金额:$6.0万
-
财政年份:1999
-
负责人:Neo Martinez
-
依托单位:
This is a Minority Postdoctoral Research Fellowship Award.
-
批准号:9207426
-
项目类别:Fellowship Award
-
资助金额:$10.5万
-
财政年份:1993
-
负责人:Neo Martinez
-
依托单位:
Ecological Food Web Studies
-
批准号:9120696
-
项目类别:Standard Grant
-
资助金额:$0.3万
-
财政年份:1991
-
负责人:Neo Martinez
-
依托单位:
国内基金
海外基金
登录
查看更多内容
动脉粥样硬化炎症中CD4+CD28+/CD28null T细胞表型转化的关键分子机制
-
批准号:
-
项目类别:省市级项目
-
资助金额:--
-
批准年份:2025
-
负责人:徐仁德
-
依托单位:
IL-6/IL-6R介导M2巨噬细胞-胶质瘤细胞
交互作用揭示PTEN-null胶质瘤化疗增敏
新策略
-
批准号:
-
项目类别:省市级项目
-
资助金额:10.0万元
-
批准年份:2025
-
负责人:倪向荣
-
依托单位:
急性冠脉综合征易损斑块的新机制:CD4+CD28null T 细胞免疫衰老
-
批准号:
-
项目类别:省市级项目
-
资助金额:--
-
批准年份:2024
-
负责人:
-
依托单位:
CD4+CD28null T细胞Kv1.3通道调控DNA甲基化参与急性冠脉综合征斑块不稳定性的作用及其机制
-
批准号:
-
项目类别:省市级项目
-
资助金额:--
-
批准年份:2020
-
负责人:
-
依托单位:
新型EGFRvIII抑制剂对EGFRvIII+/PTEN null神经胶质瘤的抗肿瘤作用及机制研究
-
批准号:81402950
-
项目类别:青年科学基金项目
-
资助金额:23.0万元
-
批准年份:2014
-
负责人:何昆燕
-
依托单位:
Kv1.3与KCa3.1钾通道介导CD4+CD28+/CD28null T细胞免疫表型转化在动脉粥样硬化中的作用
-
批准号:81300208
-
项目类别:青年科学基金项目
-
资助金额:23.0万元
-
批准年份:2013
-
负责人:徐仁德
-
依托单位:
通过人工合成类肽阻断CTLA-4恢复慢性乙型病毒性肝炎CD4+CD28null T细胞功能的研究
-
批准号:81070331
-
项目类别:面上项目
-
资助金额:32.0万元
-
批准年份:2010
-
负责人:柏健鹰
-
依托单位: