Mixed stands reduce Abies alba tree-ring sensitivity to summer drought in the Vosges mountains, western Europe

Lebourgeois, François; Gómez, Noel Rivera; Pinto, Paulina E.; Mérian, Pierre

doi:10.1016/j.foreco.2013.04.003

Cited by 222 publications

(172 citation statements)

References 78 publications

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“…These observations are consistent with other studies in which tree species diversity was found to reduce drought stress (8,9). Higher water availability in more diverse stands suggests niche partitioning and/or facilitation processes among the interacting species.…”

Section: Discussionsupporting

confidence: 92%

“…The rare case studies published thus far have shown contrasting results. Two reported that species in more diverse ecosystems could be more resistant to drought stress (8,9), whereas another suggested that enhanced biodiversity could trigger higher exposure to drought (10). Improving our understanding of how species diversity influences the resistance of terrestrial ecosystems to a fluctuating climate is crucial.…”

mentioning

confidence: 99%

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Tree diversity does not always improve resistance of forest ecosystems to drought

Grossiord

Granier

Ratcliffe

et al. 2014

Proc. Natl. Acad. Sci. U.S.A.

249

226

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Climate models predict an increase in the intensity and frequency of drought episodes in the Northern Hemisphere. Among terrestrial ecosystems, forests will be profoundly impacted by drier climatic conditions, with drastic consequences for the functions and services they supply. Simultaneously, biodiversity is known to support a wide range of forest ecosystem functions and services. However, whether biodiversity also improves the resistance of these ecosystems to drought remains unclear. We compared soil drought exposure levels in a total of 160 forest stands within five major forest types across Europe along a gradient of tree species diversity. We assessed soil drought exposure in each forest stand by calculating the stand-level increase in carbon isotope composition of late wood from a wet to a dry year (Δδ 13 C S ). Δδ 13 C S exhibited a negative linear relationship with tree species diversity in two forest types, suggesting that species interactions in these forests diminished the drought exposure of the ecosystem. However, the other three forest types were unaffected by tree species diversity. We conclude that higher diversity enhances resistance to drought events only in drought-prone environments. Managing forest ecosystems for high tree species diversity does not necessarily assure improved adaptability to the more severe and frequent drought events predicted for the future.climate change | ecology | species interaction | carbon isotope composition | FundivEUROPE

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Section: Discussionsupporting

confidence: 92%

mentioning

confidence: 99%

Tree diversity does not always improve resistance of forest ecosystems to drought

Grossiord

Granier

Ratcliffe

et al. 2014

Proc. Natl. Acad. Sci. U.S.A.

249

226

View full text Add to dashboard Cite

show abstract

“…This follows the general principles of the stress gradient hypothesis in which facilitative interactions between different tree species in a mixed stand is expected more in harsher environments and that competitive interactions are more prevalent in more benign site conditions [6][7][8][9]. Studies have indicated that tree species growing in mixed stands can benefit via reduced sensitivity to climatic stress including drought stress [10][11][12][13][14][15].…”

Section: Introductionsupporting

confidence: 55%

“…were more productive than their monospecific counterparts on sites with low productivity in France [15]. This stress gradient hypothesis also applies to mixed stands of silver fir in France [10], mixed stands of European beech in Germany [11], and mixtures of Douglas-fir (Pseudotsuga menziessi (Mirb.) Franco) in Germany [12].…”

Section: Discussionmentioning

confidence: 88%

Climatic Sensitivity of a Mixed Forest Association of White Spruce and Trembling Aspen at Their Southern Range Limit

Chhin

Wang

2016

Forests

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Climatic sensitivity of white spruce (Picea glauca (Moench) Voss) was examined growing in association with trembling aspen (Populus tremuloides Michx.) at their southern limit of distribution in a transitional ecotone between the southern boreal forest and northern prairie region. The study was carried out in the Spruce Woods Provincial Park (SWPP) located in southwestern Manitoba, Canada. The dry regional climate restricted trembling aspen growth during the growing season via moisture deficiency and temperature induced drought stress. Warm, mild winters also negatively affected radial growth of trembling aspen. Growth of white spruce was moderated by conditions within the aspen stands as radial growth patterns showed low variability from year to year, a low common growth signal, and a stronger response to temperature than to precipitation. Nonetheless, the dry regional climate still restricted growth of white spruce during the growing season via temperature induced drought stress. The findings of the study for white spruce support the stress gradient hypothesis in which facilitative interactions between tree species are expected under harsher environmental conditions.

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“…Niche partitioning has also been reported to occur due to morphological or temporal separations among species in soil-water resource acquisition under drought stress. Such differential acquisition strategies can partially reduce competition for soil moisture and stabilize carbon uptake [105]. Differential drought sensitivity of codominant trees may also relax competitive interactions between species, allowing compensatory growth of the lesssensitive species to occur that offsets growth reductions of the other species, as was observed within mixed stands of deciduous forest [76].…”

Section: Scaling Community Responses To Ecosystem Productivitymentioning

confidence: 99%

Integrating plant ecological responses to climate extremes from individual to ecosystem levels

Felton

Smith

2017

Phil. Trans. R. Soc. B

101

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Climate extremes will elicit responses from the individual to the ecosystem level. However, only recently have ecologists begun to synthetically assess responses to climate extremes across multiple levels of ecological organization. We review the literature to examine how plant responses vary and interact across levels of organization, focusing on how individual, population and community responses may inform ecosystem-level responses in herbaceous and forest plant communities. We report a high degree of variability at the individual level, and a consequential inconsistency in the translation of individual or population responses to directional changes in community- or ecosystem-level processes. The scaling of individual or population responses to community or ecosystem responses is often predicated upon the functional identity of the species in the community, in particular, the dominant species. Furthermore, the reported stability in plant community composition and functioning with respect to extremes is often driven by processes that operate at the community level, such as species niche partitioning and compensatory responses during or after the event. Future research efforts would benefit from assessing ecological responses across multiple levels of organization, as this will provide both a holistic and mechanistic understanding of ecosystem responses to increasing climatic variability. This article is part of the themed issue ‘Behavioural, ecological and evolutionary responses to extreme climatic events’.

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Mixed stands reduce Abies alba tree-ring sensitivity to summer drought in the Vosges mountains, western Europe

Cited by 222 publications

References 78 publications

Tree diversity does not always improve resistance of forest ecosystems to drought

Tree diversity does not always improve resistance of forest ecosystems to drought

Climatic Sensitivity of a Mixed Forest Association of White Spruce and Trembling Aspen at Their Southern Range Limit

Integrating plant ecological responses to climate extremes from individual to ecosystem levels

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