Will interannual variability in sand grassland communities increase with climate change?

S. Bartha, G. Campetella, E. Ruprecht, A. Kun, J. Házi, A. Horváth, K. Virágh, Zs Molnár

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Decreasing diversity and plant cover, as well as increasing variability of these characteristics with increasing aridity are expected in grasslands due to climate change. These predictions were tested in perennial sand grasslands in Hungary. Two sites were chosen in different positions on an aridity gradient and two stands in each site were monitored for 9 years. Presence of plant species were recorded along 52 m long circular belt transects of 1040 units of 5 cm × 5 cm contiguous microquadrats. This sampling procedure - a version of line-intercept methods - enabled us to monitor diversity and total abundance in a sensitive, precise and non-destructive way. We found no trend but fluctuation in most community level attributes and in species composition. Contrary to fluctuations, between-site differences in diversity did not change and diversity remained lower in the more arid site during our 9-year-study. Compositional diversity performed better than species diversity because allowed us to detect vegetation changes that would have remained hidden if monitoring would be based only on the species richness. Comparing the magnitudes of fluctuations, five times higher relative interannual variability (CV%) was found for compositional diversity at the more arid site, while the relative temporal variability of total abundance and species richness did not show consistent patterns. We conclude that a 9 year-long study was too short to identify trends caused by the changing climate. However, the larger temporal variability of species combinations found in the more arid site suggests larger vulnerability and highlights the importance of non-linear dynamics during climate changes.

Original languageEnglish
Pages (from-to)13-21
Number of pages9
JournalCommunity Ecology
Volume9
Issue numberSUPPL. 1
DOIs
Publication statusPublished - 2008

Fingerprint

aridity
species richness
grasslands
grassland
climate change
sand
species diversity
dry environmental conditions
vulnerability
transect
monitoring
vegetation
sampling
climate
ground cover plants
prediction
Hungary
trend
attribute
plant species

Keywords

  • Aridity gradient
  • Biome transition zone
  • Climate scenario
  • Compositional diversity
  • Field test
  • KISKUN LTER
  • Monitoring
  • Resilience

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology

Cite this

Bartha, S., Campetella, G., Ruprecht, E., Kun, A., Házi, J., Horváth, A., ... Molnár, Z. (2008). Will interannual variability in sand grassland communities increase with climate change? Community Ecology, 9(SUPPL. 1), 13-21. https://doi.org/10.1556/ComEc.9.2008.S.4

Will interannual variability in sand grassland communities increase with climate change? / Bartha, S.; Campetella, G.; Ruprecht, E.; Kun, A.; Házi, J.; Horváth, A.; Virágh, K.; Molnár, Zs.

In: Community Ecology, Vol. 9, No. SUPPL. 1, 2008, p. 13-21.

Research output: Contribution to journalArticle

Bartha, S, Campetella, G, Ruprecht, E, Kun, A, Házi, J, Horváth, A, Virágh, K & Molnár, Z 2008, 'Will interannual variability in sand grassland communities increase with climate change?', Community Ecology, vol. 9, no. SUPPL. 1, pp. 13-21. https://doi.org/10.1556/ComEc.9.2008.S.4
Bartha, S. ; Campetella, G. ; Ruprecht, E. ; Kun, A. ; Házi, J. ; Horváth, A. ; Virágh, K. ; Molnár, Zs. / Will interannual variability in sand grassland communities increase with climate change?. In: Community Ecology. 2008 ; Vol. 9, No. SUPPL. 1. pp. 13-21.
@article{c4c8eec1220d4ef8b9f392a4b8818414,
title = "Will interannual variability in sand grassland communities increase with climate change?",
abstract = "Decreasing diversity and plant cover, as well as increasing variability of these characteristics with increasing aridity are expected in grasslands due to climate change. These predictions were tested in perennial sand grasslands in Hungary. Two sites were chosen in different positions on an aridity gradient and two stands in each site were monitored for 9 years. Presence of plant species were recorded along 52 m long circular belt transects of 1040 units of 5 cm × 5 cm contiguous microquadrats. This sampling procedure - a version of line-intercept methods - enabled us to monitor diversity and total abundance in a sensitive, precise and non-destructive way. We found no trend but fluctuation in most community level attributes and in species composition. Contrary to fluctuations, between-site differences in diversity did not change and diversity remained lower in the more arid site during our 9-year-study. Compositional diversity performed better than species diversity because allowed us to detect vegetation changes that would have remained hidden if monitoring would be based only on the species richness. Comparing the magnitudes of fluctuations, five times higher relative interannual variability (CV{\%}) was found for compositional diversity at the more arid site, while the relative temporal variability of total abundance and species richness did not show consistent patterns. We conclude that a 9 year-long study was too short to identify trends caused by the changing climate. However, the larger temporal variability of species combinations found in the more arid site suggests larger vulnerability and highlights the importance of non-linear dynamics during climate changes.",
keywords = "Aridity gradient, Biome transition zone, Climate scenario, Compositional diversity, Field test, KISKUN LTER, Monitoring, Resilience",
author = "S. Bartha and G. Campetella and E. Ruprecht and A. Kun and J. H{\'a}zi and A. Horv{\'a}th and K. Vir{\'a}gh and Zs Moln{\'a}r",
year = "2008",
doi = "10.1556/ComEc.9.2008.S.4",
language = "English",
volume = "9",
pages = "13--21",
journal = "Community Ecology",
issn = "1585-8553",
publisher = "Akademiai Kiado",
number = "SUPPL. 1",

}

TY - JOUR

T1 - Will interannual variability in sand grassland communities increase with climate change?

AU - Bartha, S.

AU - Campetella, G.

AU - Ruprecht, E.

AU - Kun, A.

AU - Házi, J.

AU - Horváth, A.

AU - Virágh, K.

AU - Molnár, Zs

PY - 2008

Y1 - 2008

N2 - Decreasing diversity and plant cover, as well as increasing variability of these characteristics with increasing aridity are expected in grasslands due to climate change. These predictions were tested in perennial sand grasslands in Hungary. Two sites were chosen in different positions on an aridity gradient and two stands in each site were monitored for 9 years. Presence of plant species were recorded along 52 m long circular belt transects of 1040 units of 5 cm × 5 cm contiguous microquadrats. This sampling procedure - a version of line-intercept methods - enabled us to monitor diversity and total abundance in a sensitive, precise and non-destructive way. We found no trend but fluctuation in most community level attributes and in species composition. Contrary to fluctuations, between-site differences in diversity did not change and diversity remained lower in the more arid site during our 9-year-study. Compositional diversity performed better than species diversity because allowed us to detect vegetation changes that would have remained hidden if monitoring would be based only on the species richness. Comparing the magnitudes of fluctuations, five times higher relative interannual variability (CV%) was found for compositional diversity at the more arid site, while the relative temporal variability of total abundance and species richness did not show consistent patterns. We conclude that a 9 year-long study was too short to identify trends caused by the changing climate. However, the larger temporal variability of species combinations found in the more arid site suggests larger vulnerability and highlights the importance of non-linear dynamics during climate changes.

AB - Decreasing diversity and plant cover, as well as increasing variability of these characteristics with increasing aridity are expected in grasslands due to climate change. These predictions were tested in perennial sand grasslands in Hungary. Two sites were chosen in different positions on an aridity gradient and two stands in each site were monitored for 9 years. Presence of plant species were recorded along 52 m long circular belt transects of 1040 units of 5 cm × 5 cm contiguous microquadrats. This sampling procedure - a version of line-intercept methods - enabled us to monitor diversity and total abundance in a sensitive, precise and non-destructive way. We found no trend but fluctuation in most community level attributes and in species composition. Contrary to fluctuations, between-site differences in diversity did not change and diversity remained lower in the more arid site during our 9-year-study. Compositional diversity performed better than species diversity because allowed us to detect vegetation changes that would have remained hidden if monitoring would be based only on the species richness. Comparing the magnitudes of fluctuations, five times higher relative interannual variability (CV%) was found for compositional diversity at the more arid site, while the relative temporal variability of total abundance and species richness did not show consistent patterns. We conclude that a 9 year-long study was too short to identify trends caused by the changing climate. However, the larger temporal variability of species combinations found in the more arid site suggests larger vulnerability and highlights the importance of non-linear dynamics during climate changes.

KW - Aridity gradient

KW - Biome transition zone

KW - Climate scenario

KW - Compositional diversity

KW - Field test

KW - KISKUN LTER

KW - Monitoring

KW - Resilience

UR - http://www.scopus.com/inward/record.url?scp=77952692612&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77952692612&partnerID=8YFLogxK

U2 - 10.1556/ComEc.9.2008.S.4

DO - 10.1556/ComEc.9.2008.S.4

M3 - Article

VL - 9

SP - 13

EP - 21

JO - Community Ecology

JF - Community Ecology

SN - 1585-8553

IS - SUPPL. 1

ER -