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Consistent pattern of higher lability of leaves from high latitudes for both native Phragmites australis and exotic Spartina alterniflora

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Abstract
1. Global variation in litter decomposition rates is driven by climate, decomposer taxa and litter quality. Most large-scale studies of litter quality have made comparisons across species, rather than within a species sourced from different latitudes. Here, we aim to explore latitudinal variation in leaf litter decomposition rate and litter quality within a species. 2. We investigated whether the typical interspecific pattern of increased litter lability at higher latitudes also holds within plant species, by comparing leaf litter decomposition rates and litter traits from stands of native Phragmites australis and exotic Spartina alterniflora in Chinese coastal wetlands spanning 20 degrees of latitude using parallel greenhouse and field transplant experiments. 3. We found that leaf litter from high-latitude plants decomposed 46.6 +/- 5.1% faster than that from low-latitude conspecifics, with similar patterns in both plant species in both decomposition experiments. Higher lability of leaves from high latitudes was associated with lower levels of plant defensive compounds (phenolics and tannins) and higher levels of nutrients (Ca, Mg and Na). Litter from the exotic S. alterniflora decomposed faster than litter from the native P. australis, being consistent with lower defences and higher nutrient concentrations in S. alterniflora litter. 4. Our results show that individual species follow the same pattern of increasing litter lability at higher latitudes previously reported in cross-species geographical comparisons. Moreover, this pattern can develop rapidly (<4 decades) in an introduced species, raising the question of whether it is caused by phenotypic plasticity or adaptation.
Keywords
Ecology, Evolution, Behavior and Systematics, decomposition rate, exotic species, latitudinal gradients, litter traits, Phragmites australis, Spartina alterniflora, LITTER DECOMPOSITION RATES, LEAF-LITTER, PLANT INVASION, TERRESTRIAL ECOSYSTEMS, NITROGEN RELEASE, TROPICAL FORESTS, GLOBAL PATTERNS, YANGTZE-RIVER, RAIN-FOREST, TRAITS

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MLA
Zhang, Youzheng, et al. “Consistent Pattern of Higher Lability of Leaves from High Latitudes for Both Native Phragmites Australis and Exotic Spartina Alterniflora.” FUNCTIONAL ECOLOGY, 2021, doi:10.1111/1365-2435.13826.
APA
Zhang, Y., Pennings, S. C., Liu, Z., Li, B., & Wu, J. (2021). Consistent pattern of higher lability of leaves from high latitudes for both native Phragmites australis and exotic Spartina alterniflora. FUNCTIONAL ECOLOGY. https://doi.org/10.1111/1365-2435.13826
Chicago author-date
Zhang, Youzheng, Steven C. Pennings, Zixia Liu, Bo Li, and Jihua Wu. 2021. “Consistent Pattern of Higher Lability of Leaves from High Latitudes for Both Native Phragmites Australis and Exotic Spartina Alterniflora.” FUNCTIONAL ECOLOGY. https://doi.org/10.1111/1365-2435.13826.
Chicago author-date (all authors)
Zhang, Youzheng, Steven C. Pennings, Zixia Liu, Bo Li, and Jihua Wu. 2021. “Consistent Pattern of Higher Lability of Leaves from High Latitudes for Both Native Phragmites Australis and Exotic Spartina Alterniflora.” FUNCTIONAL ECOLOGY. doi:10.1111/1365-2435.13826.
Vancouver
1.
Zhang Y, Pennings SC, Liu Z, Li B, Wu J. Consistent pattern of higher lability of leaves from high latitudes for both native Phragmites australis and exotic Spartina alterniflora. FUNCTIONAL ECOLOGY. 2021;
IEEE
[1]
Y. Zhang, S. C. Pennings, Z. Liu, B. Li, and J. Wu, “Consistent pattern of higher lability of leaves from high latitudes for both native Phragmites australis and exotic Spartina alterniflora,” FUNCTIONAL ECOLOGY, 2021.
@article{8709313,
  abstract     = {{1. Global variation in litter decomposition rates is driven by climate, decomposer taxa and litter quality. Most large-scale studies of litter quality have made comparisons across species, rather than within a species sourced from different latitudes. Here, we aim to explore latitudinal variation in leaf litter decomposition rate and litter quality within a species.

2. We investigated whether the typical interspecific pattern of increased litter lability at higher latitudes also holds within plant species, by comparing leaf litter decomposition rates and litter traits from stands of native Phragmites australis and exotic Spartina alterniflora in Chinese coastal wetlands spanning 20 degrees of latitude using parallel greenhouse and field transplant experiments.

3. We found that leaf litter from high-latitude plants decomposed 46.6 +/- 5.1% faster than that from low-latitude conspecifics, with similar patterns in both plant species in both decomposition experiments. Higher lability of leaves from high latitudes was associated with lower levels of plant defensive compounds (phenolics and tannins) and higher levels of nutrients (Ca, Mg and Na). Litter from the exotic S. alterniflora decomposed faster than litter from the native P. australis, being consistent with lower defences and higher nutrient concentrations in S. alterniflora litter.

4. Our results show that individual species follow the same pattern of increasing litter lability at higher latitudes previously reported in cross-species geographical comparisons. Moreover, this pattern can develop rapidly (<4 decades) in an introduced species, raising the question of whether it is caused by phenotypic plasticity or adaptation.}},
  author       = {{Zhang, Youzheng and Pennings, Steven C. and Liu, Zixia and Li, Bo and Wu, Jihua}},
  issn         = {{0269-8463}},
  journal      = {{FUNCTIONAL ECOLOGY}},
  keywords     = {{Ecology,Evolution,Behavior and Systematics,decomposition rate,exotic species,latitudinal gradients,litter traits,Phragmites australis,Spartina alterniflora,LITTER DECOMPOSITION RATES,LEAF-LITTER,PLANT INVASION,TERRESTRIAL ECOSYSTEMS,NITROGEN RELEASE,TROPICAL FORESTS,GLOBAL PATTERNS,YANGTZE-RIVER,RAIN-FOREST,TRAITS}},
  language     = {{eng}},
  title        = {{Consistent pattern of higher lability of leaves from high latitudes for both native Phragmites australis and exotic Spartina alterniflora}},
  url          = {{http://dx.doi.org/10.1111/1365-2435.13826}},
  year         = {{2021}},
}

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