Is penetration of non-psammophytes an underestimated threat to sand dunes? - a case study from western Pontic coast

Valcheva, Magdalena; Sopotlieva, Desislava; Meshinev, Tenyo; Apostolova, Iva

doi:10.1007/s11852-018-0656-3

Cited by 9 publications

(5 citation statements)

References 25 publications

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“…In coastal areas of Ukraine, Dubyna et al (2010) obtained a synanthropisation rate of 37.1% (20.9% apophytes, 16.2% alien), and Kolomiichuk & Maltseva (2014) 44% (24.5% apophytes, 19.5% alien). Valcheva et al (2019) recorded 27.1% of synanthropic species (17.4% weeds, 9.7% alien) on the Bulgarian coast.…”

Section: Discussionmentioning

confidence: 98%

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Synanthropisation of coastal vegetation in southern Spain

Enríquez‐de‐Salamanca

2022

Mediterr. Bot.

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Coastal dunes have high ecological value, but are often damaged or overexploited by beach tourism. The main problems for the vegetation of this ecosystem are the physical destruction and the synanthropisation, the latter due to the colonisation of both alien and apophyte species, favoured by human action. This study analyses the degree of synanthropisation of the vegetation of a stretch of coastline in southern Spain, by systematically surveying the flora present in six biotopes: beach, foredune, mid-dune, back-dune, creek and rocky area. The percentage of synanthropic species was 51%, of which 33% are apophytes, mainly ruderal species and weeds, and 18% are alien species, mostly from gardens adjacent to the coastal zone. The degree of synanthropisation varies by biotope, ranging from zero on the beach to 63% on the back-dune, with a marked increase from the beach inland. Richness and diversity is highest in biotopes with higher synanthropisation, but at the cost of lower naturalness. Measures need to be taken to protect coastal vegetation, both from destruction and synanthropisation.

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Section: Discussionmentioning

confidence: 98%

“…This index has been widely used, among others, in several studies on coastal vegetation (e.g. Dubyna et al 2010;Kolomiichuk & Maltseva 2014;Valcheva et al 2019).…”

Section: Discussionmentioning

confidence: 99%

Synanthropisation of coastal vegetation in southern Spain

Enríquez‐de‐Salamanca

2022

Mediterr. Bot.

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“…This was unexpected as other studies (e.g. Carboni et al, 2010;Valcheva et al, 2019) detected relatively few alien taxa in early successional stages, suggesting that pioneer dune communities were composed mainly of specialized halophytes and psammophytes adapted to harsh conditions, while neophytes are more usually generalists lacking these adaptations. The small number of both plant groups associated with these habitats may account, in part, for the low occurrences of non-native species.…”

Section: Discussionmentioning

confidence: 52%

Increasing status of non-native vascular plants in the Sefton Coast sand-dune system, north Merseyside, UK

Smith¹

2020

BIB

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Over 460 non-native (alien) taxa were recorded in a Sefton Coast sand-dune vascular plant inventory, their proportion in the flora increasing after 1999. Between 2005/06 and 2018, twice as many non-native as native plants were found. An analysis of occurrences of native and non-native taxa in six major habitat types found that a higher proportion of aliens was present in scrub/woodland and disturbed ground, while native plants had more occurrences in fixed dunes/dune grasslands, dune heath and wetlands. No differences between the two groups were detected for strandline/shingle and embryo/mobile dune habitats. Twenty-four non-native and 14 native taxa showed invasive characteristics in the duneland. The former included especially Hippophae rhamnoides and Rosa rugosa, both constituting major threats to sand-dune biodiversity. Particularly invasive native plants were Arrhenatherum elatius, Betula spp., Salix cinerea, and Ulex europaea. The main findings accord with studies elsewhere in Britain and Europe showing recent increases of neophytes in semi-natural habitats and that both non-native and native species can have invasive traits. The open habitats of coastal dunes seem to be particularly susceptible to plant invasions.

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“…Grass-and shrubland plants as a group had the strongest presence in all dune types, but again, grey dune vegetation was the most influenced. Grey dunes normally present a higher vegetation cover and higher species richness compared to other early successional dune habitats [62,85,86,89], as they often grow in an undulating landscape with variable exposure and slope, resulting in high variability of microhabitats [90]. The presence of grass-and shrubland species, common for the Koelerio-Corynephoretea canescentis and Festuco-Brometea vegetation classes, is typical for Black Sea coastal dune vegetation, especially for the dunes of northern alliances, such as Cynodonto-Teucrion polii and Scabiosion ucranicae, which have been linked with the lower sand salinity due to the general lower salinity of Black Sea water [74].…”

Section: Vegetation Characteristicsmentioning

confidence: 99%

“…The natural and anthropogenic-induced processes of sand dune stabilization, accompanied by accumulation of organic matter [60], might create favorable conditions for the penetration of not only alien but also native plant species with different habitat type preferences. Limited numbers of studies deal with this problem [24,[61][62][63], but we consider this issue important because the presence of non-psammophytes might cause changes in the structure and functions of coastal dune ecosystems.…”

Section: Introductionmentioning

confidence: 99%

Vegetation Characteristics and Recent Successional Trends of Sand Dune Habitats at the Bulgarian Black Sea Coast

Valcheva

Sopotlieva

Apostolova

et al. 2021

Coasts

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Coastal dunes are valuable and vulnerable habitats that require scientific exploration and understanding of their natural processes; therefore, the aims of this study were to determine the current vegetation characteristics of dune habitats along the Bulgarian Coast in terms of species richness and cover of typical psammophytes and different non-psammophytic plant groups, and to analyze how they respond to certain environmental drivers. Data were collected from 12 dune systems. The research was focused on embryonic, white and grey dunes. The field work was conducted throughout July and August 2017. The vegetation was sampled at 154 phytosociological plots (5 m × 5 m). To understand how the vegetation responds to different drivers, we tested the correlation of defined species group richness and cover in relation to (1) the soil pH and EC values, (2) the distance from inland to the sea and (3) the range of different categories of land cover in the surrounding area. In order to track temporal vegetation changes, we compared the cover of defined species groups between 2003 and 2017. We registered a total number of 269 vascular plants, 12 bryophytes and 5 lichens. The strongest presence in all dune types, both in species richness and cover, was the group of grass- and shrubland plants. Weeds and ruderal plants had significant coverage in grey dunes, while the richness and cover of forest and alien plants were negligible among the studied dune habitats. The comparison of data between 2003 and 2017 revealed a substantial decline in the cover of psammophytes. We observed a clear pattern regarding the share of species richness of psammophytes and non-psammophytes among different locations. We detected that grey dunes were the most affected by the penetration of non-psammophytes.

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Is penetration of non-psammophytes an underestimated threat to sand dunes? - a case study from western Pontic coast

Cited by 9 publications

References 25 publications

Synanthropisation of coastal vegetation in southern Spain

Synanthropisation of coastal vegetation in southern Spain

Increasing status of non-native vascular plants in the Sefton Coast sand-dune system, north Merseyside, UK

Vegetation Characteristics and Recent Successional Trends of Sand Dune Habitats at the Bulgarian Black Sea Coast

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