Projects per year
Abstract
The species composition of plant and animal assemblages across the globe has changed substantially over the past century. How do the dynamics of individual species cause this change? We classified species into seven unique categories of temporal dynamics based on the ordered sequence of presences and absences that each species contributes to an assemblage time series. We applied this framework to 14,434 species trajectories comprising 280 assemblages of temperate marine fishes surveyed annually for 20 or more years. Although 90% of the assemblages diverged in species composition from the baseline year, this compositional change was largely driven by only 8% of the species` trajectories. Quantifying the reorganization of assemblages based on species shared temporal dynamics should facilitate the task of monitoring and restoring biodiversity. We suggest ways in which our framework could provide informative measures of compositional change, as well as leverage future research on pattern and process in ecological systems.
Original language | English |
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Number of pages | 8 |
Journal | Global Change Biology |
Volume | Early View |
Early online date | 3 Nov 2021 |
DOIs | |
Publication status | E-pub ahead of print - 3 Nov 2021 |
Keywords
- Baseline
- Biodiversity
- Long-term monitoring
- Marine fish assemblages
- Species composition
- Temporal beta diversity
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Leverhulme Centre for Anthropocene Bio: Leverhulme Centre for Anthropocene Biodiversity
Dornelas, M. (PI)
1/05/19 → 30/04/29
Project: Standard
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Why are complex environments more diver: Why are complex environments more diverse
Dornelas, M. (PI)
1/10/20 → 30/09/23
Project: Standard
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Biodiversity change in the Athropocene: Darwin, Wallace, Bates and biodiversity change in the Athropocene
Magurran, A. (PI)
1/04/20 → 31/03/23
Project: Standard