Climates Past, Present, and Yet-to-Come Shape Climate Change Vulnerabilities

Nadeau, Christopher P.; Urban, Mark C.; Bridle, Jon R.

doi:10.1016/j.tree.2017.07.012

Cited by 127 publications

(150 citation statements)

References 101 publications

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“…In particular, the intertidal oysters have optimized phenotypic integration to achieve optimal fitness by constraining growth and by enhancing thermal tolerance and plasticity, and vice versa in subtidal oysters. The adaptive plasticity will buffer the intertidal populations from extinction and provide long time for evolutionary responses to environmental change (Nadeau et al, 2017). The plastic responses will efficiently predict the direction of subsequent evolutionary processes (Fischer et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

“…This indicates that the subtidal oysters are thermal sensitive because the high degree of plastic changes in the organisms under challenging conditions always requires more energy and material costs (DeWitt et al, 1998; Siljestam and Ostman, 2017). The results suggest that the populations from high temporospatial variable climate (especially temperature disturbance) will evolve high plasticity and be less vulnerable to increasing climate change (Nadeau et al, 2017). Our findings provide direct evidence for resource conservation, especially for oysters with low plasticity, in the context of exacerbated global warming.…”

Section: Discussionmentioning

confidence: 99%

“…Comparative transcriptional analysis can accurately quantify the ability of plasticity among populations dwelling in different environments (Fischer et al, 2016; Kenkel and Matz, 2016). The organisms inhabiting highly fluctuating environments alternatively enhance their evolutionary responses by typically evolving adaptive phenotypic plasticity (Scoville and Pfrender, 2010; Nadeau et al, 2017). Furthermore, molecular phenotypes can be efficiently used to identify the direction of plasticity and evolution (adaptive or non-adaptive, Fischer et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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Transcriptomics and Fitness Data Reveal Adaptive Plasticity of Thermal Tolerance in Oysters Inhabiting Different Tidal Zones

Wang

Song

et al. 2018

Front. Physiol.

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Fine-scale adaptive evolution is always constrained by strong gene flow at vertical level in marine organisms. Rapid environmental fluctuations and phenotypic plasticity through optimization of fitness-related traits in organisms play important roles in shaping intraspecific divergence. The coastal systems experience strong variations in multiple abiotic environmental factors, especially the temperature. We used a typical intertidal species, Pacific oyster (Crassostrea gigas), to investigate the interaction between plasticity and adaptive evolution. We collected intertidal and subtidal oysters from two ecological niches and carried out common garden experiments for one generation. We identified fine-scale vertical adaptive divergence between intertidal and subtidal F1 progeny at both sites, based on different hierarchical phenotypes, including morphological, physiological, and molecular traits. We further quantified the global plasticity to thermal stress through transcriptomic analysis. The intertidal oysters exhibited slow growth rate. However, they showed high survival and metabolic rates under heat stress, indicating vertically fine-scale phenotypic adaptive mechanisms and evolutionary trade-offs between growth and thermal tolerance. Transcriptomic analysis confirmed that the intertidal oysters have evolved high plasticity. The genes were classified into three types: evolutionarily divergent, concordantly plastic, and adaptive plastic genes. The evolved divergence between intertidal and subtidal oysters for these gene sets showed a significant positive correlation with plastic changes of subtidal populations in response to high temperature. Furthermore, the intertidal oysters exhibited delayed large-scale increase in expressional plasticity than that in subtidal counterparts. The same direction between plasticity and selection suggests that the oysters have evolved adaptive plasticity. This implies that adaptive plasticity facilitates the oyster to adapt to severe intertidal zones. The oysters exposed to strong environmental variability are thermal tolerant and have high adaptive potential to face the current global warming. Our findings will not only provide new insights into the significant role of plasticity in adaptive evolution that can be extended to other marine invertebrates, but also provide basic information for oyster resources conservation and reef reestablishment.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Transcriptomics and Fitness Data Reveal Adaptive Plasticity of Thermal Tolerance in Oysters Inhabiting Different Tidal Zones

Wang

Song

et al. 2018

Front. Physiol.

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“…2) Are impacts on the fauna consistent or divergent across elevations? A theoretical expectation is that organisms living in more heterogeneous environments should be more resilient to extremes of temporal variation [19,20]. We predicted that butterflies at montane sites would be robust relative to populations at lower elevations in landscapes that are both less spatially variable and already impacted by a history of human activity.…”

Section: Introductionmentioning

confidence: 99%

Impacts of a millennium drought on butterfly faunal dynamics

Forister

Fordyce

Nice

et al. 2018

Clim Chang Responses

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Background: Climate change is challenging plants and animals not only with increasing temperatures, but also with shortened intervals between extreme weather events. Relatively little is known about diverse assemblages of organisms responding to extreme weather, and even less is known about landscape and life history properties that might mitigate effects of extreme weather. Our aim was to address this knowledge gap using a multi-decadal dataset of 163 butterfly species that recently experienced a millennium-scale drought. To understand faunal dynamics in the context of the millennium drought, we investigated the behavior of phenology (including date of first flight), species richness and diversity indices through time at 10 study sites spanning an elevational gradient. Linear models were developed to understand the differential sensitivity of butterflies to climate at low and high elevations. Results: Dates of first flight advanced across the elevational gradient during the drought, leading to an overall expansion of the flight window at low elevations and a compression of the flight window in the mountains. The number of species observed per year increased at lower elevations but decreased at higher elevations, apparently as a consequence of extreme sensitivity to hot and dry conditions.

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“…Partly due to their ease of measurement, and partly due to anticipated climatic changes, these abiotic variables have been at the forefront of most research on contemporary and future range limits (Sexton et al 2009;Nadeau et al 2017). Partly due to their ease of measurement, and partly due to anticipated climatic changes, these abiotic variables have been at the forefront of most research on contemporary and future range limits (Sexton et al 2009;Nadeau et al 2017).…”

mentioning

confidence: 99%

Maladaptation beyond a geographic range limit driven by antagonistic and mutualistic biotic interactions across an abiotic gradient

Benning

Moeller

2019

Evolution

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Species’ geographic range limits often result from maladaptation to the novel environments beyond the range margin. However, we rarely know which aspects of the n‐dimensional environment are driving this maladaptation. Especially of interest is the influence of abiotic versus biotic factors in delimiting species’ distributions. We conducted a 2‐year reciprocal transplant experiment involving manipulations of the biotic environment to explore how spatiotemporal gradients in precipitation, fatal mammalian herbivory, and pollination affected lifetime fitness within and beyond the range of the California annual plant, Clarkia xantiana ssp. xantiana. In the first, drier year of the experiment, fitness outside the range edge was limited mainly by low precipitation, and there was some evidence for local adaptation within the range. In the second, wetter year, we did not observe abiotic limitations to plant fitness outside the range; instead biotic interactions, especially herbivory, limited fitness outside the range. Together, protection from herbivory and supplementation of pollen resulted in three‐ to sevenfold increases in lifetime fitness outside the range margin in the abiotically benign year. Overall, our work demonstrates the importance of biotic interactions, particularly as they interact with the abiotic environment, in determining fitness beyond geographic range boundaries.

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Climates Past, Present, and Yet-to-Come Shape Climate Change Vulnerabilities

Cited by 127 publications

References 101 publications

Transcriptomics and Fitness Data Reveal Adaptive Plasticity of Thermal Tolerance in Oysters Inhabiting Different Tidal Zones

Transcriptomics and Fitness Data Reveal Adaptive Plasticity of Thermal Tolerance in Oysters Inhabiting Different Tidal Zones

Impacts of a millennium drought on butterfly faunal dynamics

Maladaptation beyond a geographic range limit driven by antagonistic and mutualistic biotic interactions across an abiotic gradient

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