相关实验视频

Updated: Jun 17, 2025

Author Spotlight: Unveiling Plankton Response to Climate Change Through Time-Series Data and Artistic Expression

Author Spotlight: Unveiling Plankton Response to Climate Change Through Time-Series Data and Artistic Expression

Published on: July 28, 2023

动物浮游生物的功能多样性作为淡水生态系统健康的生物指标,跨越土地使用梯度

Anna Maria Goździejewska¹, Ireneusz Cymes², Katarzyna Glińska-Lewczuk²

¹Department of Tourism, Recreation and Ecology, Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-719, Olsztyn, Poland. gozdzik@uwm.edu.pl.

Scientific reports

|August 8, 2024

概括

动物浮游生物群体表明淡水生态系统的健康状况. 土地利用变化,特别是强化农业,对动物浮游生物的多样性和在分捕获层面的功能产生负面影响.

科学领域:

生态生态学生态生态学
淡水生态学淡水生态
环境科学环境科学

背景情况:

动物浮游生物是淡水生态系统健康的重要指标.
土地利用和环境条件对水生生态系统有很大的影响.
了解动物浮游生物群落结构对于评估生态压力至关重要.

研究的目的:

分析动物浮游生物社区对河湖系统中各种土地使用类型 (自然,城市,农业) 的反应.
通过使用功能特征,研究环境条件,土地利用和动物浮游生物元社区结构之间的关系.
引入以分捕获量为基础的方法来评估生态系统健康.

主要方法:

使用分类学组和功能特征 (身体大小,养策略) 分析动物浮游生物群落.
应用部分最小平方回归 (PLS-R) 来将环境数据与动物浮游生物结构联系起来.
利用双向集群分析 (TWCA) 和指标物种分析 (ISA) 来识别社区模式和区域特定的种类.

主要成果:

自然河流区域显示出息地异质性和多样化的食.
城市地区导致功能同质化,有利于小微生物.
农业区最初支持各种大型过动物和动物,但农业的强化大大减少了动物浮游生物种群,生物质和生态系统功能.
土地覆盖面变化的影响在分捕获量尺度上比总捕获量尺度更为明显.

结论:

动物浮游生物群体是土地利用对淡水生态系统影响的敏感指标.
城市化导致功能均化,而强化农业严重降低了生态系统的功能.
部分捕捞水平分析对于准确评估土地覆盖面变化对水生生态系统的影响至关重要.

关键词:

捕捞区的捕捞区是一个捕捞区.社区特征社区特征洛特式生态系统洛特式生态系统部分最小平方回归.动物浮游生物组合矩阵.

更多相关视频

A Low-Cost Method of Measuring the In Situ Primary Productivity of Periphyton Communities of Lentic Waters

A Low-Cost Method of Measuring the In Situ Primary Productivity of Periphyton Communities of Lentic Waters

Published on: December 16, 2022

Modeling the Size Spectrum for Macroinvertebrates and Fishes in Stream Ecosystems

Modeling the Size Spectrum for Macroinvertebrates and Fishes in Stream Ecosystems

Published on: July 30, 2019

相关概念视频

What is Biodiversity?

What is Biodiversity?

Biodiversity describes the variety of living things at multiple organizational levels: genetic, species and ecosystem diversity. Species diversity includes all branches of the evolutionary tree from single-celled prokaryotic organisms, bacteria, and archaea, to the eukaryotic kingdoms: plants; animals; fungi; and protists. To date, there have been about 1.75 million species identified, and new species are discovered every week.

What is an Ecosystem?

What is an Ecosystem?

Primary Production

Primary Production

The total amount of energy acquired by primary producers in an ecosystem is called gross primary production (GPP). However, of this energy, producers use some for metabolic processes, and some is lost as heat, decreasing the amount of energy available to the next trophic level. The remaining usable amount of energy is called the net primary productivity (NPP). In terrestrial ecosystems, NPP is driven by climate, while light penetration and nutrient availability drive NPP in aquatic ecosystems.

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...