Scale-dependent topographic complexity underpins abundance and spatial distribution of ecosystem engineers on natural and artificial structures
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View abstract on PubMed
Summary
This summary is machine-generated.Coastal urbanization requires better artificial shorelines. Enhancing topographic complexity, like rugosity, on artificial structures can boost biodiversity by supporting ecosystem engineers, crucial for ecological sustainability.
Area Of Science
- Marine Ecology
- Coastal Engineering
- Biodiversity Research
Background
- Coastal urbanization pressures necessitate ecological improvements for artificial shorelines.
- Topographic complexity in natural habitats supports biodiversity; mimicking this on artificial structures is a potential solution.
- Ecosystem engineers' responses to topography are scale-dependent due to size and resource needs.
Purpose Of The Study
- To identify key topographic properties (rugosity, surface area, micro-surface orientations) influencing ecosystem engineers.
- To assess these properties across multiple spatial scales (1-500 mm) for fucoids and limpets.
- To evaluate biogenic rugosity created by barnacles at fine scales (1-20 mm).
Main Methods
- Conducted field surveys and 3D scanning on natural and artificial substrata.
- Quantified topographic variables including rugosity, surface area, and micro-surface orientations.
- Analyzed the distribution and abundance of ecosystem engineers (fucoids, limpets) in relation to topography.
Main Results
- Rugosity and topographic variables significantly impacted ecosystem engineer distribution and abundance.
- Natural substrata showed substantially higher rugosity (up to 67%) than artificial ones.
- Fucoids preferred high-rugosity, horizontal micro-surfaces; limpets (≥15 mm) occupied smoother areas. Barnacles created fine-scale rugosity (≤10 mm).
Conclusions
- Scale-dependent rugosity is a primary driver for fucoid habitat formation and limpet habitat selection.
- Findings highlight the importance of mimicking ecologically relevant topography for coastal infrastructure.
- This research offers insights for eco-engineering strategies to enhance biodiversity on artificial shorelines.
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