| Autor: |
Su L; School of Resources and Environmental Engineering, Anhui University, Hefei 230601, China., Lu L; School of Resources and Environmental Engineering, Anhui University, Hefei 230601, China., Si M; School of Resources and Environmental Engineering, Anhui University, Hefei 230601, China., Ding J; Jiangsu Academy of Forestry, Nanjing 211153, China., Li C; School of Resources and Environmental Engineering, Anhui University, Hefei 230601, China.; Anhui Province Key Laboratory of Wetland Ecosystem Protection and Restoration, Anhui University, Hefei 230601, China. |
| Jazyk: |
angličtina |
| Zdroj: |
Animals : an open access journal from MDPI [Animals (Basel)] 2024 May 17; Vol. 14 (10). Date of Electronic Publication: 2024 May 17. |
| DOI: |
10.3390/ani14101486 |
| Abstrakt: |
Personality is widely observed in animals and has important ecological and evolutionary implications. In addition to being heritable, personality traits are also influenced by the environment. Population density commonly affects animal behavior, but the way in which it shapes animal personality remains largely unknown. In this study, we reared juvenile crayfish at different population densities and measured their personality traits (shyness, exploration, and aggression) after reaching sexual maturity. Our results showed repeatability for each behavior in all treatments, except for the shyness of females at medium density. There was a negative correlation between shyness and exploration in each treatment, and aggression and exploration were positively correlated in medium- and high-density females. These indicate the presence of a behavior syndrome. On average, the crayfish raised at higher population densities were less shy, more exploratory, and more aggressive. We found no behavioral differences between the sexes in crayfish. These results suggested that population density may affect the average values of behavioral traits rather than the occurrence of personality traits. Our study highlights the importance of considering population density as a factor influencing personality traits in animals and, therefore, might help us to understand animal personality development. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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