Disturbance In Dry Coastal Dunes Promotes Diversity Of Plants And Arthropods

Ane Kirstine Brunbjerg, Gorm Pilgaard Jørgensen, Kristian Mandsberg Nielsen, Morten Lauge Pedersen, Jens-Christian Svenning, Rasmus Ejrnæs

Research output: Contribution to journalConference article in JournalResearchpeer-review

23 Citations (Scopus)

Abstract

Naturally disturbed coastal dunes have become strongly reduced during the last century due to the cessation of grazing by domestic herbivores, dune stabilization initiatives, and increasing nitrogen deposition, all promoting encroachment by grasses, shrubs and woody plants. We assessed the effects of three disturbance types (burning, trampling and blowouts) on plant and arthropod species richness and composition in dry coastal dunes in Jutland, Denmark. Environmental variables, plant presence–absence and arthropod abundance were measured in 150 1 × 2 m plots along transects in blowouts, burned areas, trampled paths and their paired controls. We used Nonmetric Multidimensional Scaling (NMDS) ordination to assess differences in species composition of disturbed areas and controls. Ordination scores were used as response variables in Linear Mixed Effect (LME) models to test for the effects of disturbances on plant and arthropod composition. Indicator species analysis revealed plant and arthropod species indicative for different disturbances. Plant and arthropod species richness and the number of annual plant species generally increased with disturbance, and plant and arthropod richness and composition responded differently to different disturbances. Arthropod communities were more diverse in disturbed plots and hosted species often found in early successional habitats of potential conservation value. Disturbance promoted β-diversity, but affected plants more than arthropods, likely because of the difference in colonization potential. A combination of disturbances maximized diversity, suggesting that re-installment of a diverse disturbance regime should be considered in dune management.
Original languageEnglish
JournalBiological Conservation
Volume182
Pages (from-to)243–253
Number of pages11
ISSN0006-3207
DOIs
Publication statusPublished - 2015

Fingerprint

dunes
arthropod
dune
arthropods
disturbance
species diversity
ordination
Denmark
species richness
arthropod communities
annual plant
trampling
woody plant
woody plants
indicator species
herbivore
stabilization
shrub
herbivores
colonization

Keywords

  • β-diversity
  • Blowout
  • Burning
  • Conservation
  • Indicator species analyses
  • Trampling

Cite this

Brunbjerg, A. K., Jørgensen, G. P., Nielsen, K. M., Pedersen, M. L., Svenning, J-C., & Ejrnæs, R. (2015). Disturbance In Dry Coastal Dunes Promotes Diversity Of Plants And Arthropods. Biological Conservation, 182, 243–253. https://doi.org/10.1016/j.biocon.2014.12.013
Brunbjerg, Ane Kirstine ; Jørgensen, Gorm Pilgaard ; Nielsen, Kristian Mandsberg ; Pedersen, Morten Lauge ; Svenning, Jens-Christian ; Ejrnæs, Rasmus. / Disturbance In Dry Coastal Dunes Promotes Diversity Of Plants And Arthropods. In: Biological Conservation. 2015 ; Vol. 182. pp. 243–253.
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abstract = "Naturally disturbed coastal dunes have become strongly reduced during the last century due to the cessation of grazing by domestic herbivores, dune stabilization initiatives, and increasing nitrogen deposition, all promoting encroachment by grasses, shrubs and woody plants. We assessed the effects of three disturbance types (burning, trampling and blowouts) on plant and arthropod species richness and composition in dry coastal dunes in Jutland, Denmark. Environmental variables, plant presence–absence and arthropod abundance were measured in 150 1 × 2 m plots along transects in blowouts, burned areas, trampled paths and their paired controls. We used Nonmetric Multidimensional Scaling (NMDS) ordination to assess differences in species composition of disturbed areas and controls. Ordination scores were used as response variables in Linear Mixed Effect (LME) models to test for the effects of disturbances on plant and arthropod composition. Indicator species analysis revealed plant and arthropod species indicative for different disturbances. Plant and arthropod species richness and the number of annual plant species generally increased with disturbance, and plant and arthropod richness and composition responded differently to different disturbances. Arthropod communities were more diverse in disturbed plots and hosted species often found in early successional habitats of potential conservation value. Disturbance promoted β-diversity, but affected plants more than arthropods, likely because of the difference in colonization potential. A combination of disturbances maximized diversity, suggesting that re-installment of a diverse disturbance regime should be considered in dune management.",
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Brunbjerg, AK, Jørgensen, GP, Nielsen, KM, Pedersen, ML, Svenning, J-C & Ejrnæs, R 2015, 'Disturbance In Dry Coastal Dunes Promotes Diversity Of Plants And Arthropods', Biological Conservation, vol. 182, pp. 243–253. https://doi.org/10.1016/j.biocon.2014.12.013

Disturbance In Dry Coastal Dunes Promotes Diversity Of Plants And Arthropods. / Brunbjerg, Ane Kirstine; Jørgensen, Gorm Pilgaard; Nielsen, Kristian Mandsberg; Pedersen, Morten Lauge; Svenning, Jens-Christian; Ejrnæs, Rasmus.

In: Biological Conservation, Vol. 182, 2015, p. 243–253.

Research output: Contribution to journalConference article in JournalResearchpeer-review

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AU - Brunbjerg, Ane Kirstine

AU - Jørgensen, Gorm Pilgaard

AU - Nielsen, Kristian Mandsberg

AU - Pedersen, Morten Lauge

AU - Svenning, Jens-Christian

AU - Ejrnæs, Rasmus

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N2 - Naturally disturbed coastal dunes have become strongly reduced during the last century due to the cessation of grazing by domestic herbivores, dune stabilization initiatives, and increasing nitrogen deposition, all promoting encroachment by grasses, shrubs and woody plants. We assessed the effects of three disturbance types (burning, trampling and blowouts) on plant and arthropod species richness and composition in dry coastal dunes in Jutland, Denmark. Environmental variables, plant presence–absence and arthropod abundance were measured in 150 1 × 2 m plots along transects in blowouts, burned areas, trampled paths and their paired controls. We used Nonmetric Multidimensional Scaling (NMDS) ordination to assess differences in species composition of disturbed areas and controls. Ordination scores were used as response variables in Linear Mixed Effect (LME) models to test for the effects of disturbances on plant and arthropod composition. Indicator species analysis revealed plant and arthropod species indicative for different disturbances. Plant and arthropod species richness and the number of annual plant species generally increased with disturbance, and plant and arthropod richness and composition responded differently to different disturbances. Arthropod communities were more diverse in disturbed plots and hosted species often found in early successional habitats of potential conservation value. Disturbance promoted β-diversity, but affected plants more than arthropods, likely because of the difference in colonization potential. A combination of disturbances maximized diversity, suggesting that re-installment of a diverse disturbance regime should be considered in dune management.

AB - Naturally disturbed coastal dunes have become strongly reduced during the last century due to the cessation of grazing by domestic herbivores, dune stabilization initiatives, and increasing nitrogen deposition, all promoting encroachment by grasses, shrubs and woody plants. We assessed the effects of three disturbance types (burning, trampling and blowouts) on plant and arthropod species richness and composition in dry coastal dunes in Jutland, Denmark. Environmental variables, plant presence–absence and arthropod abundance were measured in 150 1 × 2 m plots along transects in blowouts, burned areas, trampled paths and their paired controls. We used Nonmetric Multidimensional Scaling (NMDS) ordination to assess differences in species composition of disturbed areas and controls. Ordination scores were used as response variables in Linear Mixed Effect (LME) models to test for the effects of disturbances on plant and arthropod composition. Indicator species analysis revealed plant and arthropod species indicative for different disturbances. Plant and arthropod species richness and the number of annual plant species generally increased with disturbance, and plant and arthropod richness and composition responded differently to different disturbances. Arthropod communities were more diverse in disturbed plots and hosted species often found in early successional habitats of potential conservation value. Disturbance promoted β-diversity, but affected plants more than arthropods, likely because of the difference in colonization potential. A combination of disturbances maximized diversity, suggesting that re-installment of a diverse disturbance regime should be considered in dune management.

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KW - Indicator species analyses

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KW - Conservation

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KW - Trampling

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DO - 10.1016/j.biocon.2014.12.013

M3 - Conference article in Journal

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