Invasibility of a coastal strip in NE Spain by alien plants

Sobrino, E.; Sanz‐Elorza, Mario; Dana, Elías D.; González-Moreno, Alberto

doi:10.1111/j.1654-1103.2002.tb02085.x

Cited by 64 publications

(7 citation statements)

References 18 publications

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“…In this study, we used an extensive field survey of non-native plants along ~500 km of the Southwestern coast of Spain to examine the invasion degree in plant communities with different histories of landscape alteration. In the last 50 years, Spanish coastal areas have been exposed to an intense process of urbanization linked to a substantial increase in plant invasions (Sobrino et al 2009;Basnou et al 2015). Therefore, this study area is an ideal case to study the effect of landscape alteration on the dynamics of biological invasions.…”

Section: Introductionmentioning

confidence: 99%

The effects of landscape history and time-lags on plant invasion in Mediterranean coastal habitats

et al. 2016

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Human-driven landscape changes may promote plant invasions by increasing propagule pressure and providing favourable conditions for non-native species to establish and spread. The increase in invasion levels might not be immediate but rather exhibit a time-lag (i.e. invasion debt). Moreover, the relationship between invasion and landscape history (i.e. changes in landscape composition) might be extremely complex as it might also include extinction debts of invasive species currently in regression. In order to understand the effect of landscape history on plant invasion, we studied the invasion level in coastal plant communities affected by intense human-driven landscape alteration in the last 50 years. We identified all non-native plant species within 809 grid cells (250x250 m) along ~500 km of the Spanish SW coast. We tested the association of (1) non-native richness conditional on the overall presence of non-natives (at least one species), and (2) the occurrence of the most frequent non-native species, with the percentage of human land-cover categories in 1956, 1991 and 2007 using a multimodel inference approach. We used these models to project future invasion patterns in the region. We found non-native richness to be more associated with land-cover variables in 1956 than in 2007, suggesting the existence of an invasion debt, but not for the overall presence of non-natives. For most frequent species, the effects of past landscape alteration depended on the introduction pathway and the region of origin. Species used in agriculture were more related to past cropland area, while most of the species used in gardening or forestry showed higher affinity for recently altered areas. These results highlight the relevance of the species' introduction history and landscape history in assessing future long-term invasion trends.

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Section: Introductionmentioning

confidence: 99%

The effects of landscape history and time-lags on plant invasion in Mediterranean coastal habitats

et al. 2016

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“…Sand dune habitats are a particularly suitable object for observation because vegetation and habitat changes on coasts are often drastic and fast [47]. Recently, studies on the presence and importance of alien species in coastal ecosystems have increased significantly [48][49][50][51][52][53][54][55][56][57][58][59], but, unfortunately, these are not the only risk factors for the fate of psammophytic vegetation. 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.…”

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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“…In the summer of 2004 the systematic prospecting for alien plants in the southern coast of Tarragona was completed (Sobrino & al., 2002). The area is particularly rich in Cactaceae, as we already showed in a previous paper (Sanz-Elorza & al., 2004).…”

Section: Introductionmentioning

confidence: 99%

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Sanz‐Elorza¹,

Sánchez²,

Vesperinas³

2006

Anal. Jard. Bot. Madr.

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During the floristic work carried out in 2004 in the Baix Camp region of Tarragona (NE Spain) we found four new species of alien naturalised Cactaceae. Of these, three are reported for the second time from Europe and the other is new to Catalonia region. Southern Catalonia, with eleven species of Cactaceae, harbours the highest diversity of the family in Europe. Our results demonstrate that this diversity is even higher than previously believed. The introduction of these exotic taxa is, once again, due to the development of gardening based exclusively on foreign elements, to the unscrupulous and uncontrolled dumping of their remains in the natural environment, and to the existence of a favourable climate.Keywords: alien plants, Cactaceae, Catalonia, exotic, invaders, Spain, xenophyte. ResumenDurante la campaña de prospección florística llevada a cabo en 2004 por la comarca del Baix Camp (Tarragona, NE de España) hemos encontrado cuatro especies de cactáceas alóctonas naturalizadas. De ellas, tres se citan por segunda vez de Europa y la otra es nueva para Cataluña. Nuestros resultados aumentan aún más la diversidad de cactáceas del sur de Cataluña que, con once especies, es la mayor de toda Europa. La introducción de estos táxones exóticos que ahora damos a conocer se debe, una vez más, al desarrollo de una jardinería basada casi exclusivamente en elementos foráneos, en el vertido desaprensivo e incontrolado de sus restos en el medio natural y en la existencia de una climatología muy favorable.

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Invasibility of a coastal strip in NE Spain by alien plants

Cited by 64 publications

References 18 publications

The effects of landscape history and time-lags on plant invasion in Mediterranean coastal habitats

The effects of landscape history and time-lags on plant invasion in Mediterranean coastal habitats

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

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