Related Experiment Video
Updated: Jul 1, 2025
06:48
The HoneyComb Paradigm for Research on Collective Human Behavior
Published on: January 19, 2019
9.3K
Anthropogenic noise limits resource distribution without changing social hierarchies
1School of Biological and Marine Sciences, University of Plymouth, Plymouth PL4 8AA, UK; School of Environmental and Natural Sciences, Bangor University, LL57 2TH, UK.
The Science of the Total Environment
|February 29, 2024
Summary
Anthropogenic noise pollution impacts marine ecosystems. Ship noise reduced the number of hermit crabs benefiting from new shell resources, disrupting group resource distribution.
Area of Science:
- Marine Ecology
- Behavioral Ecology
- Environmental Toxicology
Background:
- Anthropogenic noise is a pervasive global pollutant impacting marine environments.
- While individual behavioral responses to noise are documented, population-level effects on resource distribution remain understudied.
- Understanding these cascades is crucial for assessing impacts on survival and fitness.
Purpose of the Study:
- To investigate how anthropogenic noise affects resource distribution, social hierarchies, and individual benefits within hermit crab populations.
- To test if noise alters the vacancy chain dynamics of gastropod shells, a critical resource for hermit crabs.
Main Methods:
- Controlled laboratory experiments using hermit crabs and gastropod shells as model resources.
- Playback of ship noise and ambient control sounds to assess effects on resource distribution.
- Application of vacancy chain theory to analyze resource acquisition and abandonment cascades.
Main Results:
- Under ambient sound, new shells created a cascade of resource acquisitions benefiting multiple individuals via a size-based hierarchy.
- Anthropogenic ship noise significantly reduced the number of individuals benefiting from new shell resources.
- The size-based hierarchy among hermit crabs was maintained under both sound conditions, evident in consistent chain structures.
Conclusions:
- Anthropogenic noise disrupts the cascading benefits of resource availability in hermit crab groups.
- Noise pollution can negatively impact population-level resource distribution and potentially individual fitness.
- Hermit crabs serve as a valuable model for understanding the broader ecological consequences of underwater noise.
More Related Videos
06:16An Experimental Approach to Investigating Effects of Artificial Light at Night on Free-Ranging Animals: Implementation, Results, and Directions for Future Research
Published on: February 2, 2022
2.4K
08:16Experimental Protocol for Manipulating Plant-induced Soil Heterogeneity
Published on: March 13, 2014
18.8K
Related Concept Videos
02:26Ecological Disturbance
17.1K
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.
17.1K
01:50Threats to Biodiversity
22.3K
There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
22.3K
01:41Social Traps
22.3K
Social traps are negative situations where people get caught in a direction or relationship that later proves to be unpleasant, with no easy way to back out of or avoid. The concept was orignally introduced by John Platt who applied psychology to Garrett Hardin's "Tragedy of the Commons", where in New England herd owners could let their cattle graze in the common ground. This situation seems like a good idea, but an individual could have an advantage. If they owned...
22.3K
02:31Habitat Fragmentation
17.5K
Habitat fragmentation describes the division of a more extensive, continuous habitat into smaller, discontinuous areas. Human activities such as land conversion, as well as slower geological processes leading to changes in the physical environment, are the two leading causes of habitat fragmentation. The fragmentation process typically follows the same steps: perforation, dissection, fragmentation, shrinkage, and attrition.
17.5K
02:30Naturalistic Observations
15.4K
If you want to understand how behavior occurs, one of the best ways to gain information is to simply observe the behavior in its natural context. However, people might change their behavior in unexpected ways if they know they are being observed. How do researchers obtain accurate information when people tend to hide their natural behavior? As an example, imagine that your professor asks everyone in your class to raise their hand if they always wash their hands after using the restroom. Chances...
15.4K
00:53Sound Intensity Level
4.2K
Humans perceive sound by hearing. The human ear helps sound waves reach the brain, which then interprets the waves and creates the perception of hearing. The loudness of the environment in which a person is located determines whether they can distinguish between different sound sources.
The human ear can perceive an extensive range of sound intensity, necessitating the use of the logarithmic scale to define a physical quantity—the intensity level. It is a ratio of two intensities and...
The human ear can perceive an extensive range of sound intensity, necessitating the use of the logarithmic scale to define a physical quantity—the intensity level. It is a ratio of two intensities and...
4.2K