相关实验视频

Updated: Jul 21, 2025

Recording Behavioral Responses to Reflection in Crayfish

Recording Behavioral Responses to Reflection in Crayfish

Published on: May 14, 2010

捕食者素朴的鱼的食受到鱼类捕食者的线索的影响

Martin Musil¹, Marek Let¹, Sara Roje¹

¹Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Zátiší 728/II, 389 25, Vodňany, Czech Republic.

Scientific reports

|July 28, 2023

概括

大理石 (Procambarus virginalis) 在检测捕食者 (圆) 化学线索时减少食. 这种食抑制是相似的,无论捕食者是单独的还是与其他一起的,都会影响入侵生态.

科学领域:

生态生态学生态生态学
行为生态学行为生态学
侵入性物种生物学生物学

背景情况:

侵入性物种的食行为可能会因捕食者的存在而发生重大变化.
了解这些行为修改对于预测入侵种群对生态的影响至关重要.

研究的目的:

研究鱼类捕食者 (圆) 和同类的化学线索如何影响大理石 (Procambarus virginalis) 的食行为.
为了确定同物种的存在是否会改变大理石对捕食者的食反应.

主要方法:

使用容器进行实验设置,允许和其他生物之间进行化学,但不是视觉通信.
四个治疗组:对照 (空),同种,圆,和同种的圆.
通过测量水 (Asellus aquaticus) 作为猎物的消费量来量化食行为.

主要成果:

在暴露于单独或与同物种的圆鱼的化学线索时,大理石鱼显著减少了高达47%的猎物消耗.
在圆治疗和圆与同种类的鱼治疗之间的食减少没有显著差异.
与对照组相比,单独的特定化学线索并没有显著改变养行为.

结论:

来自鱼类捕食者的化学线索强烈抑制了大理石的食行为,无论是否存在同类.
这种捕食者诱导的食抑制是了解大理石在被入侵的淡水生态系统中的生态成功和影响的关键因素.
对捕食者-猎物动态的进一步研究对于管理像大理石这样的入侵物种至关重要.

更多相关视频

Membrane Potentials, Synaptic Responses, Neuronal Circuitry, Neuromodulation and Muscle Histology Using the Crayfish: Student Laboratory Exercises

Membrane Potentials, Synaptic Responses, Neuronal Circuitry, Neuromodulation and Muscle Histology Using the Crayfish: Student Laboratory Exercises

Published on: January 18, 2011

Recordings of Neural Circuit Activation in Freely Behaving Animals

Recordings of Neural Circuit Activation in Freely Behaving Animals

Published on: July 22, 2009

相关概念视频

Predator-Prey Interactions

Predator-Prey Interactions

Predators consume prey for energy. Predators that acquire prey and prey that avoid predation both increase their chances of survival and reproduction (i.e., fitness). Routine predator-prey interactions elicit mutual adaptations that improve predator offenses, such as claws, teeth, and speed, as well as prey defenses, including crypsis, aposematism, and mimicry. Thus, predator-prey interactions resemble an evolutionary arms race.

Fixed Action Patterns

Fixed Action Patterns

A fixed action pattern (FAP) is a specific, hard-wired sequence of behaviors that occurs in response to an external stimulus, called a sign stimulus. The behavior is “fixed” because it is essentially unchangeable—proceeding similarly across individuals of a species every time it occurs.

Instinctive Drift

Instinctive Drift

Instinctive drift refers to the tendency of animals to revert to their innate behaviors despite repeated reinforcement. Breland and Breland demonstrated this concept in an experiment with a raccoon. The raccoon was trained to pick up two coins and place them in a container in exchange for food. Initially, the raccoon learned to associate the coins with food, making them a conditioned stimulus or a substitute for food. However, over time, the raccoon became less willing to put the coins into the...