Timing and magnitude of climatic extremes differentially elevate mortality but enhance recovery in a fish population

© 2021 John Wiley & Sons Ltd.

Bibliographische Detailangaben
Veröffentlicht in:Global change biology. - 1999. - 27(2021), 23 vom: 19. Dez., Seite 6117-6128
1. Verfasser: Chiu, Ming-Chih (VerfasserIn)
Weitere Verfasser: Chang, Shih-Hsun, Yen, Yu-Ting, Liao, Lin-Yan, Lin, Hsing-Juh
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:Global change biology
Schlagworte:Journal Article Taiwan disturbance regime hydrological extremes population persistence resilience resistance salmonids
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520 |a The countervailing effects of disturbances (e.g., high mortality and enhanced recovery) on population dynamics can occur through demographic processes under rapidly increasing climatic extremes. Across an extreme-event gradient, we mechanistically demonstrated how dramatic changes in streamflow have affected the population persistence of endangered salmon in monsoonal Taiwan over a three-decade period. Our modeling indicated that the dynamics of the age-structured population were attributed to demographic processes, in which extensive mortality was characterized as a function of climatic extremes and vulnerability in the young stage of fish. In the stochastic simulations, we found that the extensive mortality and high proportion of large fish resulted from extreme flooding, which caused high values of postimpact population recovery. Our empirical evidence suggests that the magnitudes and timing of disturbance can explain the population persistence when facing climatic extremes and thereby challenges the understanding of the mechanistic drivers of these countervailing phenomena under changing environmental conditions 
650 4 |a Journal Article 
650 4 |a Taiwan 
650 4 |a disturbance regime 
650 4 |a hydrological extremes 
650 4 |a population persistence 
650 4 |a resilience 
650 4 |a resistance 
650 4 |a salmonids 
700 1 |a Chang, Shih-Hsun  |e verfasserin  |4 aut 
700 1 |a Yen, Yu-Ting  |e verfasserin  |4 aut 
700 1 |a Liao, Lin-Yan  |e verfasserin  |4 aut 
700 1 |a Lin, Hsing-Juh  |e verfasserin  |4 aut 
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