Divergence of functional traits at early stages of development in Stipa tenacissima populations distributed along an environmental gradient of the Mediterranean

Krichen, Khouloud; Vilagrosa, Alberto; Chaïeb, Mohamed

doi:10.1007/s11258-019-00969-2

Cited by 7 publications

(7 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The provenance site had a significant effect in 49 location pairs out of 93, which proves the local adaptation of BLS. A similar divergence was obtained when functional traits (e.g., biomass) of populations were compared in a congeneric species: Stipa tenacissima (Krichen et al 2019; note: beak was not measured). BLS did not show a significant relationship with other seed traits in this study (TSW, germination, and emergence).…”

Section: Testing Seed Zones Using Seed Traitssupporting

confidence: 60%

Delineation of seed transfer zones based on ecological knowledge and testing based on seed traits from different provenance for ecological restoration use

González¹

2021

View full text Add to dashboard Cite

Section: Testing Seed Zones Using Seed Traitssupporting

confidence: 60%

Delineation of seed transfer zones based on ecological knowledge and testing based on seed traits from different provenance for ecological restoration use

González¹

2021

View full text Add to dashboard Cite

“…For Stipa species, Krichen, et al [30] found that below and above-ground functional traits in S. tenacissima seedlings showed an interesting relationship which reinforces the relevance of trait co-variations. These authors, [30], discovered that Stipa followed the 'optimal allocation theory' as a strategy of resource management. However, C. ciliaris maintained better leaf traits expression during stress.…”

Section: Discussionmentioning

confidence: 81%

“…Further, the reduction in above-ground biomass production under drought might be due to various factors such as decreased rate of photosynthesis [27], disturbed assimilate partitioning [28], or poor flag leaf development [29]. For Stipa species, Krichen, et al [30] found that below and above-ground functional traits in S. tenacissima seedlings showed an interesting relationship which reinforces the relevance of trait co-variations. These authors, [30], discovered that Stipa followed the 'optimal allocation theory' as a strategy of resource management.…”

Section: Discussionmentioning

confidence: 91%

“…Hence, the leaf traits, especially LDMC and SLA, reflect the plant resource utilization efficiency and show the integrated utilization ability of plants [49]. In this regard, Krichen, et al [30] found that SLA in Stipa tenacissima is related to plant productivity and plant development under mild environmental conditions which means low sclerophylly index and less resistance to drought.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Predicting Leaf Trait Variability as a Functional Descriptor of the Effect of Climate Change in Three Perennial Grasses

2019

Self Cite

View full text Add to dashboard Cite

Aims of the study: The most important trends of the current climate variability is the scarcity of rains that affects arid ecosystems. The aim of this study was to explore the variability of leaf functional traits by which grassland species survive and resist drought and to investigate the potential link between resource use efficiency and water scarcity resistance strategies of species. Methods: Three grasses (Cenchrus ciliaris (C4), Stipa parviflora and Stipa lagascae (C3)) were established in a randomized block consisting of eleven replications. The seedlings were kept under increasing levels of water stress. In addition to their functional leaf traits, the rate of water loss and dimensional shrinkage were also measured. Key Results: Thicker and denser leaves, with higher dry matter contents, low specific leaf area and great capacity of water retention are considered among the grasses’ strategies of dehydration avoidance. Significant differences between the means of the functional traits were obtained. Furthermore, strong correlations among leaf traits were also detected (Spearman’s r exceeding 0.8). Conclusions: The results provide evidence that the studied grasses respond differently to drought by exhibiting a range of interspecific functional strategies that may ameliorate the resilience of grassland species communities under extreme drought events.

show abstract

“…Nevertheless, for the long-term survival of Mediterranean species like cork oak, sufficient genetic diversity may also be required [28]. It is known that strong adaptive genetic differentiation can occur on small geographical scales (i.e., within populations) and might be more related to environmental than spatial distances [29]. Local adaptation is not always predominant in wild populations, especially in small ones [30], and using local populations does not ensure restoration success [31].…”

Section: Introductionmentioning

confidence: 99%

The Role of Population and Half-Sib Family on Driving Suitable Functional Traits for Quercus suber L. Forest Restoration

Morcillo

Moutahir

Cortina

et al. 2020

Forests

Self Cite

View full text Add to dashboard Cite

Research Highlights: Seedlings of different Quercus suber L. populations and half-sib families differ in their response to multiple stressors, which may have consequences on the future distribution of this Mediterranean species. Background and Objectives: Global change will likely increase the frequency and severity of drought in drylands. Plant species’ distributions will largely depend on their ability to respond to the combined effect of drought and other environmental stressors. Genetic diversity in morpho-functional traits are key components of this response. Yet, information on the response to multiple stresses is scarce for many iconic species. The present study assessed the variability in the response of populations and half-sib families of a Mediterranean acidophilous tree, cork oak, to drought and changes in soil conditions. Materials and Methods: We sampled acorns of half-sib families from two cork oak populations genetically introgressed with the alkaline-tolerant species Quercus ilex L., and from a non-introgressed cork oak population located in its core habitat. We germinated the acorns and subjected seedlings to contrasted levels of water availability and additions of calcium and magnesium carbonate, and assessed their morpho-physiological response. Results: Response to drought and soil chemistry composition differed between populations and families. For some traits, introgressed populations responded similarly to drought than the non-introgressed population. Conversely, the response to soil chemistry was not clearly related to introgression. When considering half-sib families within populations, the population effect diminished, which revealed the importance of intra-population variation. However, relevant traits for water scarcity adaptations, such as specific leaf area and root:shoot ratio, remained significantly different at the population level, which highlights the relevance of these traits for management. Conclusions: Our study shows that the adaptive management and restoration of cork oak forests should consider not only geographic provenances, but also half-sib lines within populations.

show abstract

Divergence of functional traits at early stages of development in Stipa tenacissima populations distributed along an environmental gradient of the Mediterranean

Cited by 7 publications

References 44 publications

Delineation of seed transfer zones based on ecological knowledge and testing based on seed traits from different provenance for ecological restoration use

Delineation of seed transfer zones based on ecological knowledge and testing based on seed traits from different provenance for ecological restoration use

Predicting Leaf Trait Variability as a Functional Descriptor of the Effect of Climate Change in Three Perennial Grasses

The Role of Population and Half-Sib Family on Driving Suitable Functional Traits for Quercus suber L. Forest Restoration

Contact Info

Product

Resources

About