Long-term changes (1982–2010) in the bryodiversity of Spanish beech forests assessed by means of Ellenberg indicator values of temperature, nitrogen, light and pH

Delgado, Verónica; Ederra, A.

doi:10.1016/j.biocon.2012.06.022

Cited by 14 publications

(25 citation statements)

References 28 publications

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“…In the context of N deposition, other studies have documented ‘eutrophication’ of vegetation, involving a shift in composition toward more N‐demanding species (Thimonier et al. ; Gilliam ; Delgado & Ederra ) and a decrease in species richness and evenness (Bobbink et al. ; Armitage et al.…”

Section: Introductionmentioning

confidence: 99%

“…Using data on species’ ecological affinities (Diekmann ) such as Ellenberg indices (Ellenberg ), we can formulate a priori predictions about how communities should have changed over time under different hypotheses (e.g. a strong influence of warming or nutrient deposition) (Diekmann ; Delgado & Ederra ), and then test these predictions (Hédl et al. ).…”

Section: Introductionmentioning

confidence: 99%

“…; Lalanne et al. , ), likely due to the paucity of historical data available for bryophytes (Gignac ; Molau & Alatalo ; but see Delgado & Ederra ). We thus have extremely limited knowledge of how these different components of the plant community compare in terms of the nature and magnitude of long‐term responses to environmental change.…”

Section: Introductionmentioning

confidence: 99%

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Long‐term community change: bryophytes are more responsive than vascular plants to nitrogen deposition and warming

Becker‐Scarpitta

Bardat

Lalanne

et al. 2017

J Vegetation Science

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Aims Many studies of vegetation change over multiple decades have focused on vascular plants, but very few on bryophytes, despite the importance of bryophytes for overall plant biodiversity and ecosystem functioning. Using a repeated survey of vascular plants and bryophytes in a forest ecosystem, we tested predictions of the hypotheses that: (1) vegetation change has been driven by N deposition and climate warming, and (2) bryophytes are more responsive to environmental change than vascular plants. Location Lowland temperate forest, northwest France. Methods In forest plots initially surveyed in 1976, we re‐surveyed both vascular plants and bryophytes in 2009 and 2012, respectively. We analysed changes in α‐diversity, β‐diversity, and species composition, and we used community‐weighted mean values of species affinities for temperature, light, pH, soil moisture and N to assess the temporal responses potentially caused by warming, N deposition, or possibly a changing light regime. Results We observed significantly increased species richness of bryophytes and decreased richness of vascular plants. Community affinities to N, pH and temperature increased significantly for bryophytes, but not for vascular plants, although the change over time in N affinities for vascular plants was qualitatively in the predicted direction. Bryophytes showed a higher magnitude of temporal community change than vascular plants, both in terms of overall species composition and environmental affinities, indicating a higher responsiveness of bryophytes to environmental change. Conclusion Overall, the result of more marked temporal community change for bryophytes suggests that the many studies of changes in vascular plant communities over time might underestimate the sensitivity of the broader plant community (including cryptogams) to environmental change.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Long‐term community change: bryophytes are more responsive than vascular plants to nitrogen deposition and warming

Becker‐Scarpitta

Bardat

Lalanne

et al. 2017

J Vegetation Science

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“…The samples collected during these studies are kept in the University of Navarra′s PAMP Herbarium. On the other hand, Delgado & Ederra () re‐studied the bryoflora 30 years later in nine of the beech forests to establish whether the bryoflora had changed and if these changes could be related to environmental variations.…”

Section: Methodsmentioning

confidence: 99%

Nitrogen and carbon contents and δ¹⁵N and δ¹³C signatures in six bryophyte species: assessment of long‐term deposition changes (1980–2010) in Spanish beech forests

Delgado

Ederra

Santamaría

2013

Global Change Biology

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In this study we used recent (2010) and herbarium material (1980) of six bryophyte species to assess long-term atmospheric deposition in natural forested areas in northern Spain. For this purpose, tissue nitrogen and carbon content, as well as δ(13) C and δ(15) N signatures of samples of Hypnum cupressiforme, Polytrichastrum formosum, Leucobryum juniperoideum, Rhytidiadelphus loreus, Homalothecium lutescens and Diplophyllum albicans were analysed and comparisons made between years and species. In addition, the usefulness of each of the six species was evaluated. The range of values observed was similar to that in other studies carried out in rural areas. Significantly lower values were found in 2010 for N (H. cupressiforme), δ(15) N (R. loreus and D. albicans), C (R. loreus) and δ(13) C (all except L. juniperoideum). Our natural areas are thus now less influenced by atmospheric pollutants than they were, most probably due to changes in some traditional local activities. Differences were observed between species for all the four parameters studied, so different species must not be analysed together. Finally, R. loreus and H. lutescens seem to be good bioindicators, sensitive even with a few samples, although further studies are needed to corroborate their usefulness.

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“…However, testing the reliability of floristic indicator values for temperature is of great relevance, as they can be used in diachronic studies to assess the impact of climate change at plant community scale (Renetzeder et al . ; Delgado & Ederra ; Świerkosz, Reczyńska & Pech ). The high spatial resolution potentially offered by indicator values of plant communities (e.g.…”

Section: Introductionmentioning

confidence: 99%

Tree ring ecological signal is consistent with floristic composition and plant indicator values in Mediterranean Fagus sylvatica forests

et al. 2015

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Summary We compared the multivariate patterns of tree ring chronologies with those of floristic composition (and of its associated Ellenberg indicator values – EIVs) across the whole elevation gradient of Fagus sylvatica forests in Central Italy (from 300 to 1900 m a.s.l.). Both data sets were also compared with bioclimatic parameters obtained from reconstructed, site‐representative meteorological data. Procrustes analysis showed that the patterns of tree ring chronologies and floristic assemblages were significantly correlated. The two main bio‐climatic belts obtained from tree ring analysis showed significantly different floristic composition and significantly different distribution of EIVs. Constrained ordination with meteorological data as covariates showed that in both data sets, most of the variation was explained by mean summer temperature, while precipitation parameters had only minor explanatory power. Ellenberg indicator values for temperature showed a strong correlation with mean summer temperature obtained from the meteorological data. EIVs for continentality were weakly correlated with annual temperature range. No correlation emerged between the EIVs for moisture and the precipitation parameters. Constrained ordination of the tree ring data set with the floras' mean EIVs as covariates found that the most explanatory variables were the EIVs for temperature followed by the EIVs for light. This latter finding is probably a consequence of temperature control (via summer drought) on canopy Leaf Area Index. Synthesis. Ecological classification of beech forest stands through either tree ring chronologies or floristic composition yields very similar results. Both bio‐indication methods point to the predominant role of growing‐season temperatures in controlling patterns and processes of forest ecosystems across wide elevation gradients. Thus, similarities in tree ring chronologies of the past between sites could be used to infer analogies in past floristic assemblages. Moreover, temperature indicator values obtained from floras show excellent accordance with meteorological data, allowing reliable usage of diachronic floristic data for climate change monitoring at detailed spatial scale.

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Long-term changes (1982–2010) in the bryodiversity of Spanish beech forests assessed by means of Ellenberg indicator values of temperature, nitrogen, light and pH

Cited by 14 publications

References 28 publications

Long‐term community change: bryophytes are more responsive than vascular plants to nitrogen deposition and warming

Long‐term community change: bryophytes are more responsive than vascular plants to nitrogen deposition and warming

Nitrogen and carbon contents and δ¹⁵N and δ¹³C signatures in six bryophyte species: assessment of long‐term deposition changes (1980–2010) in Spanish beech forests

Tree ring ecological signal is consistent with floristic composition and plant indicator values in Mediterranean Fagus sylvatica forests

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Long-term changes (1982–2010) in the bryodiversity of Spanish beech forests assessed by means of Ellenberg indicator values of temperature, nitrogen, light and pH

Cited by 14 publications

References 28 publications

Long‐term community change: bryophytes are more responsive than vascular plants to nitrogen deposition and warming

Long‐term community change: bryophytes are more responsive than vascular plants to nitrogen deposition and warming

Nitrogen and carbon contents and δ15N and δ13C signatures in six bryophyte species: assessment of long‐term deposition changes (1980–2010) in Spanish beech forests

Tree ring ecological signal is consistent with floristic composition and plant indicator values in Mediterranean Fagus sylvatica forests

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Nitrogen and carbon contents and δ¹⁵N and δ¹³C signatures in six bryophyte species: assessment of long‐term deposition changes (1980–2010) in Spanish beech forests