Population variation in early development can determine ecological resilience in response to environmental change
| Autor: | Stefania Catara, Jon R. Bridle, Greg M. Walter, Antonia Cristaudo |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
0301 basic medicine Mediterranean climate environmental sensitivity Environmental change Physiology Range (biology) Climate Change Climate change Germination Plant Science Biology 01 natural sciences genotype‐by‐environment interactions 03 medical and health sciences Ecological resilience Precipitation genotype-by-environment interactions germination success Full Paper Phenology Ecology Research ecological resilience Temperature seed ecology Full Papers Plant Dormancy Cold Temperature Mediterranean ecosystems climate change intraspecific variation 030104 developmental biology Seeds 010606 plant biology & botany |
| Zdroj: | The New Phytologist Walter, G M, Catara, S, Bridle, J R & Cristaudo, A 2020, ' Population variation in early development can determine ecological resilience in response to environmental change ', New Phytologist . https://doi.org/10.1111/nph.16453 |
| ISSN: | 1469-8137 0028-646X |
| DOI: | 10.1111/nph.16453 |
| Popis: | As climate change transforms seasonal patterns of temperature and precipitation, germination success at marginal temperatures will become critical for the long‐term persistence of many plant species and communities. If populations vary in their environmental sensitivity to marginal temperatures across a species’ geographical range, populations that respond better to future environmental extremes are likely to be critical for maintaining ecological resilience of the species.Using seeds from 2–6 populations for each of nine species of Mediterranean plants, we characterised patterns of among‐population variation in environmental sensitivity by quantifying genotype‐by‐environment interactions (G×E) for germination success at temperature extremes, and under two light regimes representing conditions below and above the soil surface.For eight of nine species tested at hot and cold marginal temperatures, we observed substantial among‐population variation in environmental sensitivity for germination success, and this often depended on the light treatment. Importantly, different populations often performed best at different environmental extremes.Our results demonstrate that ongoing changes in temperature regime will affect the phenology, fitness, and demography of different populations within the same species differently. We show that quantifying patterns of G×E for multiple populations, and understanding how such patterns arise, can test mechanisms that promote ecological resilience. |
| Databáze: | OpenAIRE |
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