Vegetation succession and lichen diversity on dry coastal calcium-poor dunes and the impact of management experiments

Ketner-Oostra, R.; Sýkora, K.V.

doi:10.1007/bf02730482

Cited by 9 publications

(25 citation statements)

References 13 publications

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“…Research examining the process‐response morphodynamics of dune systems to dynamic restoration efforts is emerging but data collection is primarily ecological, focusing on soil and vegetation changes (Van Boxel et al . ; Ketner‐Oostra and Sykora, ; Grootjans et al ., , etc.). Isolated studies of geomorphic and/or sediment budget responses exist but have focused primarily on the expansion of active sand surfaces with only indirect or qualitative measures of aeolian activity and landscape change (e.g., Arens et al ., , ; Wondergem, ; Arens and Geelen, ).…”

Section: Introductionmentioning

confidence: 99%

Monitoring considerations for a dynamic dune restoration project: Pacific Rim National Park Reserve, British Columbia, Canada.

Darke

Eamer

Beaugrand

et al. 2013

Earth Surf Processes Landf

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Historically, management of coastal dune systems has often involved artificial stabilization of active sand surfaces in order for coastal areas to be more easily controlled and modified for human benefit. In North America, the introduction of invasive grasses, namely European and American beach (marram) grasses (Ammophila spp.) has been one of the most successful strategies used for stabilizing active coastal dune sands. Recent research has demonstrated, however, that stabilization of coastal dunes often leads to reduced landform complexity and resilience, as well as declines in species diversity. More ‘dynamic’ restoration efforts have emerged over the past 20 years that encourage dune mobility and aeolian activity in order to provide a more resilient biogeomorphic system. In North America, there is generally little research relating restoration methods and outcomes to geomorphic responses despite the fundamental importance of sedimentary processes and dune morphodynamics in broader ecosystem function. This paper aims to better situate dynamic dune restoration within current geomorphic understanding. A brief review of key terms and concepts used in the emerging field of dynamic dune restoration is provided and expanded upon with respect to geomorphologic considerations. A case study of a recent dynamic restoration effort in Pacific Rim National Park Reserve, British Columbia, Canada is provide to demonstrate how these concepts are applied. Introduction of European marram at this site, coupled with a warming climate and increased precipitation in recent decades at this site, is thought to be associated with a rapid decline in aeolian activity, system stabilization and accelerated ecological succession. Preliminary results on the response of the dune system to mechanical removal of Ammophila are presented to provide the foundation for a research framework to guide the broader restoration project. Recommendations for improving treatment methodologies and monitoring protocols are provided to aid future restoration projects of this nature. Copyright © 2013 John Wiley & Sons, Ltd.

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Section: Introductionmentioning

confidence: 99%

Monitoring considerations for a dynamic dune restoration project: Pacific Rim National Park Reserve, British Columbia, Canada.

Darke

Eamer

Beaugrand

et al. 2013

Earth Surf Processes Landf

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“…Species richness decreased in the beach community (from 21-24 to 16-18 species per combined plot) in response to anthropogenic disturbances, such as travelling by cars through the area, and natural processes (herb layer damage in storms). Species composition also indicated acidification of soil, a process documented in other dune systems (Sival et al, 1997;Ketner-Oostra and Sykora, 2000;Sykora et al, 2004).…”

Section: Discussionmentioning

confidence: 75%

Temporal species turnover and plant community changes across different habitats in the Lake Engure Nature Park, Latvia

Rūsiņa

Gavrilova

Roze

et al. 2014

Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences.

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“…Between 1966 and 1990, both slopes of RD developed from a lichen-rich Violo-Corynephoretum into grassland dominated by tall graminoids. The upper part of the western slope changed into a dwarf-shrub heath with Empetrum nigrum (Ketner-Oostra & Sýkora 2000). In the bottom zone of that slope, the aero-hygrophytic Cladina portentosa remained partly unburned between the tall graminoids, probably due to higher availability of capillary water (Westhoff 1947).…”

Section: Discussionmentioning

confidence: 99%

“…A wildfire in moss-dominated inland sand dunes (Spergulo-Corynephoretum) at The Veluwe (The Netherlands) was monitored for possible lichen recolonization with permanent plots from 1995-2000(Ketner-Oostra 2002. Campylopus introflexus reappeared in flat and undulating dunes.…”

Section: Fire As a Management Tool To Regain Lichen Diversitymentioning

confidence: 99%

Restoration of lichen diversity in grass‐dominated vegetation of coastal dunes after wildfire

Ketner-Oostra¹,

Peijl²,

Sýkora

2006

J Vegetation Science

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Question: Can lichen diversity of an earlier succession stage be restored in dune grassland after fire in a region with high nitrogen deposition? Location: Calcium‐poor coastal dunes in the Wadden district, The Netherlands. Methods: We sampled dune grassland by using a large continuous transect of 4 m × 4 m blocks on both a south slope and a west slope. The sampling was conducted in the lichen‐rich Violo‐Corynephoretum in 1966, in the vegetation dominated by tall graminoids in 1990 and in the recovering vegetation for eight years after a wildfire in 1993. Vegetation succession in the blocks is visualised in stacked bar graphs and ordination diagrams (DC A). In 1966 relevés were made within the blocks, and from 1990 until 2001 permanent quadrats were studied. Results: Between 1966 and 1990 the lichen‐rich open grassland became dominated by tall graminoids and developed partly into a dwarf‐shrub heath, resulting in a severe loss of lichen diversity. After the fire a lush vegetation of tall graminoids with an abundant moss cover developed. In 2001 the vegetation was still very different from the lichen‐rich vegetation in 1966. Conclusions: Fire alone will not change dunes dominated by tall graminoids into open lichen‐rich grasslands in an area with high aerial nitrogen deposition. After fire, additional intervention is recommended, such as large‐scale clearing of the burned vegetation and actively promoting deposition of sand, either blown in from foredunes, from re‐activated blow‐outs or artificially brought to the site.

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Vegetation succession and lichen diversity on dry coastal calcium-poor dunes and the impact of management experiments

Cited by 9 publications

References 13 publications

Monitoring considerations for a dynamic dune restoration project: Pacific Rim National Park Reserve, British Columbia, Canada.

Monitoring considerations for a dynamic dune restoration project: Pacific Rim National Park Reserve, British Columbia, Canada.

Temporal species turnover and plant community changes across different habitats in the Lake Engure Nature Park, Latvia

Restoration of lichen diversity in grass‐dominated vegetation of coastal dunes after wildfire

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