He, Shuiqing (2021) Does animal personality affect the passage success in fishway? Master's Colloquium, Ecology and Evolution.
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Abstract
Animal personalities, defined as behavioral differences among individuals that are consistent through time and across contexts, are found in a variety of taxa. Personality differences can lead to biases in wildlife sampling and the evidence for personality-related sampling bias is accumulating among many taxa. To assess the importance of personality-related sampling bias in applied conservation studies, my colloquium focused on the use of fishways. Fishways alleviate the detrimental effects of barriers on the environment and fish species. Here, I investigated if and how personality affects the passage success in fishway. 3 out of 4 case studies indicated that the personality can induce the passage bias and that bolder and explorer individuals are more prone to have a higher fishway passing rate. Assuming that this result is convincing, it can be implied that 1) part of the populations may be forced to unfavorable habitats; 2) the population size can thus decrease especially to anadromous species 3) the personality block from the barriers might cause the depletion of the genetic variation. To alleviate the effect from personality to fishway passage success, some actions can be taken, 1) raising the attraction of the fishways like some ecoducts; 2) comparing what types of fishway might be easier for fish to pass; 3) including individual personality into the evaluation of such anthropogenic barriers.
| Item Type: | Thesis (Master's Colloquium) |
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| Supervisor name: | Nicolaus, M. |
| Degree programme: | Ecology and Evolution |
| Thesis type: | Master's Colloquium |
| Language: | English |
| Date Deposited: | 17 Dec 2021 13:39 |
| Last Modified: | 17 Dec 2021 13:39 |
| URI: | https://fse.studenttheses.ub.rug.nl/id/eprint/26379 |
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