Groot, Hilbert, HJ de (2022) A deep dive into seascapes of fear: how perceived predation risk alters spatial distribution of aquatic animals and its consequences. Master's Thesis / Essay, Ecology and Evolution.
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Abstract
Predation is a strong selective force in nature, and prey thus require an adaptive behavioral response. One way by which prey may defend themselves from predation is through movement, both on large scale (such as migrations) and small scale (such as within habitat use). The resulting non-random distribution of individuals, populations and communities may have ecological consequences. These consequences are not well-understood, especially for aquatic systems. In aquatic systems, anti-predator responses are varied, and dependent on a variety of factors. I found that aquatic organisms may alter their migratory timing, routes and propensity when under risk of predation. However, some other species did not show such a response, possibly due to a lack of reliable predation risk. On a smaller scale, organisms responded by moving within and between habitats on various scales. These movements may be dependent on alarm cues, predator species and individual differences. The ecological consequences of these movements may be vast, but research remains surprisingly limited. Perhaps we could increase our understanding of aquatic anti-predator behavior and its consequences by comparing aquatic and terrestrial systems.
| Item Type: | Thesis (Master's Thesis / Essay) |
|---|---|
| Supervisor name: | Nicolaus, M. |
| Degree programme: | Ecology and Evolution |
| Thesis type: | Master's Thesis / Essay |
| Language: | English |
| Date Deposited: | 16 Feb 2022 09:13 |
| Last Modified: | 16 Feb 2022 09:13 |
| URI: | https://fse.studenttheses.ub.rug.nl/id/eprint/26592 |
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