Simulated climate change provokes rapid genetic change in the Mediterranean shrub <i>Fumana thymifolia</i>

Jump, Alistair S.; Peñuelas, Josep; Rico, Laura; Ramallo, Elisenda; Estiarte, Marc; Martı́nez-Izquierdo, José Antonio; Lloret, Francisco

doi:10.1111/j.1365-2486.2007.01521.x

Cited by 81 publications

(85 citation statements)

References 51 publications

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“…Similar local population differentiation in Fumana thymifolia (Jump et al 2009) may have enabled this species to undergo rapid genetic change in response to experimental drought and temperature manipulations (Jump et al 2008). If true, it suggests that fine-scale substrate heterogeneity is of profound significance for the response of grassland communities to climate change, as Fridley et al (2011) further showed that many species in this system respond to changes in microsite water availability and temperature by shifting their abundance along the soil depth gradient.…”

Section: F U N C T I O N a L V A R I A T I O N W I T H R E S P E C T mentioning

confidence: 88%

“…Moisture stress is considered to be the primary driver of fine-scale adaptive differentiation in several conifer species (Jump & Peñuelas 2005), and drought has led to the rapid evolution of drought avoidance strategy in the annual plant Brassica rapa (Franks 2011). Further, significant local (<500 m 2 ) population differentiation has been reported in Fumana thymifolia (Jump et al 2009), which may have contributed to the ability of this species to undergo rapid genetic change following 5 years of experimental drought and temperature manipulations (Jump et al 2008).…”

Section: Introductionmentioning

confidence: 99%

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Intraspecific functional differentiation suggests local adaptation to long‐term climate change in a calcareous grassland

2013

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Summary1. Populations of the common perennial herb Plantago lanceolata L. have been exposed to nearly two decades of summer drought at the Buxton Climate Change Experiment (BCCIL), a controlled manipulation of climate factors in a species-rich limestone grassland in northern England. 2. We used a common garden approach to test for evidence of selection for different suites of functional traits in P. lanceolata populations exposed to chronic summer drought and across a soil depth gradient. 3. The main axis of functional variation reflected a trade-off between reproductive and vegetative allocation, consistent with drought avoidance and competitive strategies, respectively. Avoidance strategies were more prominent in droughted populations, whereas competitive strategies were more prominent in populations from control treatments. Treatment differences were more pronounced in shallower soils. Deeper soils in both control and drought treatments promoted functional differentiation associated with competitive strategies, suggesting that selective pressures imposed by different climate treatments are modified by fine-scale edaphic heterogeneity. 4. Synthesis. Results suggest that population-level shifts can be a mechanism of resistance to local climate-induced extinction. Trait differentiation with respect to fine-scale variation in soil depth suggests that edaphic heterogeneity fosters high local genetic diversity, which provides a range of local phenotypes upon which drought-based selection may act.

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Section: F U N C T I O N a L V A R I A T I O N W I T H R E S P E C T mentioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Intraspecific functional differentiation suggests local adaptation to long‐term climate change in a calcareous grassland

2013

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“…Climate manipulation experiments have demonstrated that some plant populations may be able to adapt to higher temperatures (Jump et al 2008), although whether this is sufficient to ensure population survival is unknown. Adaptive capacity is likely to be low in unique and isolated locations such as in the Stirling Range (Pittock 2003).While gene flow will aid adaptation to warming climates in relatively contiguous populations, for isolated populations this would be more limited and may lead to reduced levels of climate-related genetic variation rendering them less able to adapt to any further changes (Jump & Peñuelas 2005).…”

Section: Geographic Range and Germination Nichementioning

confidence: 99%

Seed-based approach for identifying flora at risk from climate warming

Cochrane¹,

Daws

Hay

2010

Austral Ecology

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In obligate seeding species, the germination niche is crucial for colonization and population survival. It is a high-risk phase in a plant's life cycle, and is directly regulated by temperature. Seeds germinate over a range of temperatures within which there is an optimum temperature, with thresholds above and below which no germination occurs. We suggest that abrupt changes in temperature associated with a warming climate may cause a disconnect between temperatures seeds experience and temperatures over which germination is able to occur, rendering obligate seeding species vulnerable to decline and extinction. Using a bidirectional temperature gradient system, we examined the thermal constraints in the germination niche of some geographically restricted species from the low altitude mountains of the Stirling Range, southern Western Australia, including seedlots from lowland populations of four of these species. We demonstrated that high temperatures are not a limiting factor for germination in some restricted species, signifying a lack of relationship between geographic range size and breadth of the germination niche. In contrast, we identified other restricted species, in particular Sphenotoma drummondii, as being at risk of recruitment failure as a consequence of warming: seeds of this species showed a strong negative relationship between percentage germination and increasing temperature above a relatively low optimum constant temperature (13°C). We found some ecotypic differences in the temperature profiles between seeds collected from montane or lowland populations of Andersonia echinocephala, and while specific populations may become more restricted, they are perhaps at less risk of extinction from climate warming.This seed-based approach for identifying extinction risk will contribute tangibly to efforts to predict plant responses to environmental change and will assist in prioritizing species for management actions, directing limited resources towards further investigations and can supplement bioclimatic modelling.

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“…Various techniques of molecular biology have been applied to natural forest populations. Field studies of altitudinal gradients in the Montseny Mountains [27][28][29] and field experiments with warming and drought manipulation in the Garraf Mountains in typical Mediterranean shrubland [30] have demonstrated that species acclimate and adapt (evolve) quickly to climate change. The frequency of alleles of genes associated with these responses to the climate have been quantified in populations, and the role of epigenetic modifications in a fast-adaptive response has been determined.…”

Section: Responses At the Molecular Level And In The Use Of Chemical mentioning

confidence: 99%

Impacts of Global Change on Mediterranean Forests and Their Services

Peñuelas

Sardans

Filella

et al. 2017

Forests

Self Cite

121

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The increase in aridity, mainly by decreases in precipitation but also by higher temperatures, is likely the main threat to the diversity and survival of Mediterranean forests. Changes in land use, including the abandonment of extensive crop activities, mainly in mountains and remote areas, and the increases in human settlements and demand for more resources with the resulting fragmentation of the landscape, hinder the establishment of appropriate management tools to protect Mediterranean forests and their provision of services and biodiversity. Experiments and observations indicate that if changes in climate, land use and other components of global change, such as pollution and overexploitation of resources, continue, the resilience of many forests will likely be exceeded, altering their structure and function and changing, mostly decreasing, their capacity to continue to provide their current services. A consistent assessment of the impacts of the changes, however, remains elusive due to the difficulty of obtaining simultaneous and complete data for all scales of the impacts in the same forests, areas and regions. We review the impacts of climate change and other components of global change and their interactions on the terrestrial forests of Mediterranean regions, with special attention to their impacts on ecosystem services. Management tools for counteracting the negative effects of global change on Mediterranean ecosystem- services are finally discussed.

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Simulated climate change provokes rapid genetic change in the Mediterranean shrub Fumana thymifolia

Cited by 81 publications

References 51 publications

Intraspecific functional differentiation suggests local adaptation to long‐term climate change in a calcareous grassland

Intraspecific functional differentiation suggests local adaptation to long‐term climate change in a calcareous grassland

Seed-based approach for identifying flora at risk from climate warming

Impacts of Global Change on Mediterranean Forests and Their Services

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