Related Experiment Video
Updated: Jun 23, 2026
09:38
Single-throughput Complementary High-resolution Analytical Techniques for Characterizing Complex Natural Organic Matter Mixtures
Published on: January 7, 2019
Detecting change in the composition of multispecies community
1Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543, USA.
Biometrics
|May 2, 2009
Summary
This study presents a new method for analyzing community composition trends in time series data. The approach refines existing techniques for extracting ecological trends from complex multispecies datasets.
Area of Science:
- Ecology
- Time Series Analysis
- Data Science
Background:
- Understanding ecological dynamics requires analyzing changes in multispecies community composition over time.
- Traditional time series methods may not fully capture the complexities of ecological community data.
Purpose of the Study:
- To develop and describe a modified approach for extracting trends from multispecies community time series.
- To demonstrate the applicability of the new method using real-world ecological data.
Main Methods:
- Modification of an existing trend extraction method for multiple time series.
- Application of the modified method to analyze ecological composition data.
Main Results:
- Successful extraction of trends from multispecies community composition data.
- Demonstration of the method's utility in ecological time series analysis.
Conclusions:
- The modified approach provides a robust tool for identifying ecological trends in community composition.
- The method is effective for analyzing complex ecological systems, such as the Northwest Atlantic ecosystem.
Related Concept Videos
01:19Methods to Assess Microbial Communities
Microbial communities, comprising bacteria, archaea, and eukaryotic microorganisms, inhabit diverse ecosystems and play crucial roles in environmental and biological processes. Their diversity is defined by three main parameters: species richness (the number of distinct species), species abundance (the relative quantity of each species), and species evenness (how uniformly individual species are distributed in various locations). These factors together shape the structure and ecological balance...
02:26Ecological Disturbance
An ecological disturbance is a temporary disruption in the environment resulting from abiotic, biotic, or anthropogenic factors, causing a pronounced change in an ecosystem. The impact of an ecological disturbance, which can depend on its intensity, frequency, and spatial distribution, plays a significant role in shaping the species diversity within the ecosystem.Ecological disturbances can be caused by an event as small as the trampling of underbrush to an incident as wide-ranging as a forest...
01:17Microbial Biosensors
Microbial biosensors are analytical devices that utilize living microbes to detect specific substances through measurable signals. These devices consist of two main components: biosensing organisms and signal-transducing elements. Biosensing organisms, such as Escherichia coli or Saccharomyces cerevisiae, are typically housed in multiwell plates connected to transducers, enabling rapid, real-time detection of target analytes.Signal Generation MechanismWhen a target analyte—such as...
01:30Methods to Assess Microbial Populations
Assessing microbial populations is crucial for understanding microbial roles in health, ecology, and industry. Various complementary techniques—both culture-based and molecular—enable detailed analysis of microbial abundance, diversity, and function.Viable Plate CountThe viable plate count is a traditional culture-based method used to estimate the number of living microbes in a sample. After serial dilution, the sample is spread onto nutrient agar plates. Each viable cell forms a visible...