How are herbivorous consumers limited by multiple resources simultaneously? - Development and definition of co-limitation types in a generally applicable theoretical framework

草食性消费者如何同时受到多种资源的限制？

• 批准号: 228727763
• 负责人: Dr. Erik Sperfeld
• 金额: --
• 依托单位: Fachgebiet IV 2.5 - Spurenanalytik, Fließ- und Stillgewässersimulation
• 依托单位国家: 德国
• 项目类别: Research Fellowships
• 财政年份: 2012
• 资助国家: 德国
• 起止时间: 2011-12-31 至 2014-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/228727763?language=en
• 关键词: How; herbivorous; consumers; limited; multiple

Recently, a growing number of studies have shown that the growth of organisms is not limited by only one resource at any one time. Co-limitation, i.e., the simultaneous limitation of an organism¿s growth by multiple resources, is an emerging topic in ecological research. As yet, theoretical concepts for co-limitation are mainly derived for primary producers (plants/algae). Several types of co-limitation, i.e., the way how organisms are co-limited, were proposed for plants and some of which can be probably applied to consumers as well. However, consumers differ fundamentally from plants in their various resource acquisition strategies, suggesting to the need for new co-limitation types. Additionally, the proposed co-limitation types for plants are inconsistently defined among studies. Therefore, a general framework is required in which the different types of co-limitation are clearly defined. The present project aims to develop a generally applicable theoretical framework for consumer co-limitation, in which the different types of co-limitation are clearly defined and explicitly described. The project will focus on herbivorous consumers as they are especially sensitive to constraints in resource quantity and quality. I will review existing theories in nutritional ecology and conduct a comprehensive literature survey on herbivore characteristics and food categories. This knowledge is essential to develop different types of co-limitation, which will be described (i) mathematically, (ii) graphically, (iii) with help of case studies, and linked to each other in a novel theoretical framework. This framework will improve the understanding of mechanisms behind consumer co-limitation and provide a basis for the development of hypotheses which can be tested empirically. Thus, the elaboration of the proposed framework is of crucial importance in the further development of research on co-limitation.

最近，越来越多的研究表明，有机体的生长不受一次资源的限制。共限制，即通过多种资源增长的生物体的同时限制，是生态学研究中的一个新主题。到目前为止，共同限制的理论概念主要是针对主要生产者（植物/藻类）得出的。提出了几种类型的共限制，即组织的共限制方式，是针对植物提出的，其中一些也可以应用于消费者。但是，在各种资源获取策略中，消费者从根本上与工厂不同，这表明需要新的共限定类型。此外，在研究中，拟议的植物共限定类型的定义不一致。因此，需要一个一般框架，其中明确定义了不同类型的共限定。本项目旨在为消费者共限定开发一个普遍适用的理论框架，在该框架中，清楚地定义和明确描述了不同类型的共限定类型。该项目将重点放在草食消费者上，因为它们对资源数量和质量的约束特别敏感。我将回顾营养生态学的现有理论，并就草食动物特征和食品类别进行全面的文献调查。这些知识对于开发不同类型的共限定至关重要，这将在数学上描述（i），（ii）在案例研究的帮助下（iii），并在新颖的理论框架中相互联系。该框架将提高对消费者共限定背后机制的理解，并为可以通过经验测试的假设的发展提供基础。这是对拟议框架的阐述对于进一步发展共限定的研究至关重要。

项目成果

Bridging factorial and gradient concepts of resource co-limitation: towards a general framework applied to consumers.

连接资源共同限制的阶乘和梯度概念：建立适用于消费者的通用框架

• DOI: 10.1111/ele.12554
• 发表时间: 2016
• 期刊: Ecology letters
• 影响因子: 8.8
• 作者: Sperfeld E;Raubenheimer D;Wacker A.
• 通讯作者: Wacker A.

Woodstoich III: Integrating tools of nutritional geometry and ecological stoichiometry to advance nutrient budgeting and the prediction of consumer‐driven nutrient recycling

• DOI: 10.1111/oik.03529
• 发表时间: 2016-11
• 期刊: Oikos
• 影响因子: 3.4
• 作者: Erik Sperfeld;Halvor M. Halvorson;M. Malishev;F. Clissold;Nicole D. Wagner