Separating effects of competition, interference and predation in an experimental study system with small mammals

小型哺乳动物实验研究系统中竞争、干扰和捕食的分离效应

• 批准号: 60720601
• 负责人: Professorin Dr. Jana Eccard
• 金额: --
• 依托单位: Arbeitsgruppe Tierökologie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2008
• 资助国家: 德国
• 起止时间: 2007-12-31 至 2014-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/60720601?language=en
• 关键词: Separating; effects; competition; interference; predation

Interspecific territoriality, aggressiveness, behavioural disturbance and even predation are mechanisms of interference between species, and occur in a wide range of animal communities. Meanwhile, interference received relatively little empirical attention compared to the substantial body of research on indirect resource competition. I will investigate interference, competition and predation in species pairs composed by two vole or by a vole and a shrew species. While two vole species exploit and compete for the same food resources, a shrew and a vole species use different resources, but interfere aggressively in their common underground tunnel system. Additionally, shrews can prey on nestling voles and juveniles. Effects of interference with shrews on life history, on digging, on interactive, and spatial behaviour, and on stress hormone levels of voles will be studied in the laboratory and in outdoor enclosure experiments and will be compared to effects of exploitation competition among voles.

种间领地、攻击性、行为干扰甚至捕食是物种间干扰的机制，并发生在广泛的动物群落中。与此同时，与间接资源竞争的大量研究相比，干扰受到的实证关注相对较少。我将研究由两只田鼠或一只田鼠和一只鼩鼱组成的物种对中的干扰、竞争和捕食。虽然两种田鼠物种利用并竞争相同的食物资源，但鼩鼱和田鼠物种使用不同的资源，但会积极干扰它们共同的地下隧道系统。此外，鼩鼱还可以捕食雏田鼠和幼鼠。鼩鼱的干扰对田鼠的生活史、挖掘、互动和空间行为以及应激激素水平的影响将在实验室和室外围栏实验中进行研究，并将与田鼠之间的剥削竞争的影响进行比较。

项目成果

Does spatial learning ability of common voles (Microtus arvalis) and bank voles (Myodes glareolus) constrain foraging efficiency?

• DOI: 10.1007/s10071-010-0327-8
• 发表时间: 2010-11-01
• 期刊: ANIMAL COGNITION
• 影响因子: 2.7
• 作者: Haupt, Moritz;Eccard, Jana A.;Winter, York
• 通讯作者: Winter, York

From interference to predation: type and effects of direct interspecific interactions of small mammals

• DOI: 10.1007/s00265-011-1217-z
• 发表时间: 2011-11-01
• 期刊: BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY
• 影响因子: 2.3
• 作者: Liesenjohann, Monique;Liesenjohann, Thilo;Eccard, Jana A.
• 通讯作者: Eccard, Jana A.