Vegetation development in coastal foredunes in relation to methods of establishing marram grass (Ammophila arenaria)

1997 ◽  
Vol 3 (1) ◽  
pp. 179-190
Author(s):  
D. Laan ◽  
O. F. R. Tongeren ◽  
W. H. Putten ◽  
G. Veenbaas
Keyword(s):  
Ammophila Arenaria ◽  
Vegetation Development ◽  
Marram Grass ◽  
Coastal Foredunes

Vegetation development in coastal foredunes in relation to methods of establishing marram grass (Ammophila arenaria)

1997 ◽  
Vol 3 (2) ◽  
pp. 179-190 ◽  
Author(s):  
D. van der Laan ◽  
O. F. R. van Tongeren ◽  
W. H. van der Putten ◽  
G. Veenbaas
Keyword(s):  
Ammophila Arenaria ◽  
Vegetation Development ◽  
Marram Grass ◽  
Coastal Foredunes

Competition between endoparasitic nematodes and effect on biomass of Ammophila arenaria (marram grass) as affected by timing of inoculation and plant age

Nematology ◽  
2005 ◽  
Vol 7 (2) ◽  
pp. 169-178 ◽  
Author(s):  
Wim van der Putten ◽  
Henk Duyts ◽  
E. Pernilla Brinkman
Keyword(s):  
Interspecific Competition ◽  
Intraspecific Competition ◽  
Plant Biomass ◽  
Nematode Species ◽  
Pratylenchus Penetrans ◽  
Agricultural Systems ◽  
Ammophila Arenaria ◽  
Marram Grass ◽  
Natural Dune ◽  
Dune Grass

AbstractWe studied the effects of intra- and interspecific competition on the abundance of endoparasitic nematodes and assessed the consequences for biomass production of the natural dune grass Ammophila arenaria. Pratylenchus penetrans was limited by intraspecific competition and it suppressed the abundance of Heterodera arenaria, whilst the interaction between H. arenaria and Meloidogyne maritima was neutral. Pratylenchus penetrans and H. arenaria reduced plant biomass, whereas M. maritima did not. Plant biomass was not differently affected by adding one or two nematode species. When added to older plants, numbers of H. arenaria and M. maritima were higher but numbers of P. penetrans were lower, resulting in less reduction of plant biomass. We discuss our results on this natural system with respect to patterns of interspecific nematode competition observed in agricultural systems.

scholarly journals Coastal foredune evolution: the relative influence of vegetation and sand supply in the US Pacific Northwest

2015 ◽  
Vol 12 (106) ◽  
pp. 20150017 ◽  
Author(s):  
Phoebe L. Zarnetske ◽  
Peter Ruggiero ◽  
Eric W. Seabloom ◽  
Sally D. Hacker
Keyword(s):  
Ecosystem Services ◽  
Pacific Northwest ◽  
Shoreline Change ◽  
Coastal Protection ◽  
Ammophila Arenaria ◽  
Landscape Features ◽  
Sand Supply ◽  
The Us ◽  
Changing Patterns ◽  
Coastal Foredunes

Biophysical feedbacks between vegetation and sediment are important for forming and modifying landscape features and their ecosystem services. These feedbacks are especially important where landscape features differ in their provision of ecosystem services. For example, the shape of coastal foredunes, a product of both physical and biological forces, determines their ability to protect communities from rising seas and changing patterns of storminess. Here we assessed how sand supply and changes in vegetation over interannual (3 year) and decadal (21 year) scales influenced foredune shape along 100 km of coastline in the US Pacific Northwest. Across 21 years, vegetation switched from one congeneric non-native beachgrass to another ( Ammophila arenaria to A. breviligulata ) while sand supply rates were positive. At interannual timescales, sand supply rates explained the majority of change in foredune height (64–69%) and width (56–80%). However, at decadal scales, change in vegetation explained the majority of the change in foredune width (62–68%), whereas sand supply rates explained most of the change in foredune height (88–90%). In areas with lower shoreline change rates (±2 m yr −1 ), the change in vegetation explained the majority of decadal changes in foredune width (56–57%) and height (59–76%). Foredune shape directly impacts coastal protection, thus our findings are pertinent to coastal management given pressures of development and climate change.

Two distinct AFLP types in three populations of marram grass (Ammophila arenaria) in Wales

2008 ◽  
Vol 6 (3) ◽  
pp. 201-207 ◽  
Author(s):  
W. H. Gera Hol ◽  
Andre W. G. van der Wurff ◽  
Leif Skøt ◽  
Roger Cook
Keyword(s):  
Fragment Length Polymorphism ◽  
Assignment Test ◽  
Sampling Location ◽  
Ammophila Arenaria ◽  
Aflp Data ◽  
Plant Materials ◽  
Marram Grass ◽  
Outlier Loci

The genetic structure of marram grass populations at coastal and inland locations, 200 m apart, was investigated at three sites by means of amplified fragment length polymorphism (AFLP) DNA markers. We expected a genetic differentiation between coastal and inland populations and more genetic variation in the coastal areas as a result of different events of colonization by different plant materials. An assignment test showed that the sampledAmmophila arenariacould be assigned to two groups based on AFLP data. The spatial distribution of the two AFLP types ofA. arenariavaried with sampling location. In two of the three locations, mainly one type (1) was found in the newly formed dunes. This type did also occur further landward, but the second type (2) was preferentially found in inland populations. Genetic diversity was very low and of similar value in both coastal and inland populations. For each site, outlier loci with respect toFSTvalue were identified, which may be indicative of different selection pressures in coastal compared with inland clusters. However, no identical outlier loci were found at all three sites. Possible explanations for the observed difference in distribution of type 1 and 2 populations between coastal and inland sites are discussed.

Harmful soil organisms in coastal foredunes involved in degeneration of Ammophila arenaria and Calammophila baltica

1990 ◽  
Vol 68 (7) ◽  
pp. 1560-1568 ◽  
Author(s):  
W. H. Van der Putten ◽  
S. R. Troelstra
Keyword(s):  
Root Zone ◽  
Sand Dunes ◽  
Beach Sand ◽  
Parasitic Nematodes ◽  
Ammophila Arenaria ◽  
Soil Organisms ◽  
Marram Grass ◽  
Windblown Sand ◽  
Harmful Organisms ◽  
Mobile Dunes

The presence of harmful soil organisms in the root zone of Ammophila arenaria (marram grass) was examined by biotesting. For this investigation three locations along the sandy shoreline of The Netherlands were chosen: Voorne, Texel, and Schouwen. At all three locations harmful organisms were detected in sand from stable dunes, as well as in sand from mobile dunes (degenerated and vigorous A. arenaria, respectively). In beach sand, however, no harmful organisms occurred. Since A. arenaria shows vigorous growth only when it is buried regularly by windblown sand from the beach, it is concluded that this sand deposition enables the plants to escape from harmful soil organisms. Ammophila arenaria and Calammophila baltica (purple or hybrid marram grass) from the Voorne location were grown outdoors in containers filled with sand from the beach, the mobile dunes, and the stable dunes, and sterilized sand from the stable dunes. Biomass production of both species was highest in sterilized sand from the stable dune, followed by (in descending order) beach sand, sand from the mobile dune, and unsterilized sand from the stable dune. As compared with A. arenaria, however, growth of C. baltica was reduced less and without mortality of cuttings. Degree of growth reduction by harmful soil organisms could not be related to numbers of plant parasitic nematodes. Key words: Ammophila arenaria, Calammophila baltica, coastal sand dunes, succession, harmful soil organisms.

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