相关实验视频

Updated: Jun 26, 2025

Collecting Marine Gnathiid Isopod Fish Parasites with Light Traps

Collecting Marine Gnathiid Isopod Fish Parasites with Light Traps

Published on: September 25, 2023

潮间虫在人工海岸防御结构上的相对掠食强度

Hannah H J Yeo¹, Jing Ying Yeo¹, Peter A Todd¹

¹Department of Biological Sciences National University of Singapore Singapore Singapore.

Ecology and evolution

|May 14, 2024

概括

海堤,常见的沿海结构,主机动的捕食者-猎物相互作用. 对新加坡海的研究显示,海 (Nerita undata) 的掠夺率很高,这表明这些人造息地是重要的食场.

科学领域:

海洋生态海洋生态学
城市生态学城市生态学
沿海生态系统的动态

背景情况:

海是越来越普遍的沿海基础设施,但它们对捕食者-猎物动态的生态影响仍然不太了解.
捕食者通过直接死亡和诱导猎物的行为变化来影响猎物种群,导致它们寻求庇护.

研究的目的:

调查潮间掠食者对海洋脚动物Nerita undata在新加坡海结构密度的影响.
在城市沿海环境中量化掠食率并识别影响Nerita undata种群的掠食者类型.

主要方法:

采用一种新的绑定方法来监测Nerita undata的死亡率和掠食证据 (状况).
在四个海地点进行了实地实验,以评估掠食风险.
3天后对状况的分析有助于识别压碎掠食者,主要是鱼类和其他掠食者,如掠食性牛.

主要成果:

在所有海地点都观察到Nerita的高捕食潜力 (22.5%-82.5%).
掠食风险在较低的海岸高度显著更高,并且影响牛的混合贝颜色更多.
食掠食者,主要是鱼类,是死亡的主要原因,掠食性牛也有所贡献.

结论:

海生态系统的捕食者与猎物的相互作用比以前认为的更为动态.
这些人造结构在城市沿海生态系统中充当了重要的息地和关键的食地.
了解这些相互作用对于管理城市化地区的沿海生物多样性至关重要.

关键词:

尼丽塔没有数据.掠食风险掠食风险掠食风险捕食者掠食者掠食者海墙的海墙是什么意思连接方式 tethering 城市生态学城市生态学

更多相关视频

A Fish-feeding Laboratory Bioassay to Assess the Antipredatory Activity of Secondary Metabolites from the Tissues of Marine Organisms

A Fish-feeding Laboratory Bioassay to Assess the Antipredatory Activity of Secondary Metabolites from the Tissues of Marine Organisms

Published on: January 11, 2015

Assessing Intertidal Populations of the Invasive European Green Crab

Assessing Intertidal Populations of the Invasive European Green Crab

Published on: September 16, 2020

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.

Keystone Species

Keystone Species

Measures of species biodiversity, such as richness (i.e., the number of species present) and evenness (i.e., their relative abundance), describe an ecological community’s structure. Many factors affect community structure, including abiotic factors (e.g., sunlight and nutrients), disturbances (e.g., fire or flood), species interactions (e.g., predation or competition), and chance events (e.g., foreign species invasion). Certain species—such as keystone species—also play a...

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.