Syntaxonomy of the <i>Robinia pseudoacacia</i> communities in the central peri-adriatic sector of the Italian peninsula

Allegrezza, Marina; Montecchiari, Silvia; Ottaviani, Cecilia; Pelliccia, Veronica; Tesei, Giulio

doi:10.1080/11263504.2019.1610108

Cited by 11 publications

(12 citation statements)

References 24 publications

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“…The results show that A. altissima forests host a pool of species that diverge from the target species of the compared native forests. In opposition to a recent study on other alien forest species [ 31 ], we found a lack of species linked to nutrient-rich conditions. The species richness of the tree and shrub layers seems to not determine a significant differentiation of the two coenoses.…”

Section: Discussioncontrasting

confidence: 99%

Ailanthus altissima Forests Determine a Shift in Herbaceous Layer Richness: A Paired Comparison with Hardwood Native Forests in Sub-Mediterranean Europe

Montecchiari

Tesei

Allegrezza

2020

Plants

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Ailanthus altissima is an invasive alien species (IAS) present throughout Europe and included in the list of alien species of Union concern. In sub-Mediterranean areas of central Italy, there is a lack of knowledge about this invasive species and its interactions with the native forest ecosystems. We aim to find what are the main differences in vegetation structure and floristic diversity between A. altissima forests and native forests through the assessment of the principal ecological parameters that differ between the forest types. We performed 38 phytosociological relevés and sampling of ecological parameters in A. altissima forest communities and neighboring native forests. We analyzed how species richness, diversity, life forms, life strategies, structural characteristics, and ecological parameters changed in A. altissima forests compared with native ones. We found that in A. altissima forests, there is a shift in herbaceous layer richness, with a higher presence of annual ruderal herbs and the absence of herbaceous species linked to the forest environment. The ecological parameters that diverge from the native forests were total nitrogen, total carbon, and C/N ratio. A. altissima forest communities could threaten the biodiversity of the native forest ecosystems in the sub-Mediterranean landscape, favoring ruderal species and inhibiting the presence of typical forest species.

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Section: Discussioncontrasting

confidence: 99%

Ailanthus altissima Forests Determine a Shift in Herbaceous Layer Richness: A Paired Comparison with Hardwood Native Forests in Sub-Mediterranean Europe

Montecchiari

Tesei

Allegrezza

2020

Plants

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“…In the dominated tree and shrub layer are frequent forest species of the Querco-Fagetea class such as Hedera helix, Acer campestre, Quercus pubescens, Fraxinus ornus and pre-forest and shrub species of the Rhamno-Prunetea class such as Rubus ulmifolius, Clematis vitalba, Ulmus minor. Those species indicate that the potential native vegetation for the territory occupied by the A. altissima forest of the Asparago acutifolii-Ailanthetum altissimae is the Mediterranean and sub-Mediterranean oak forests of the Carpinion orientalis alliance, re- I II II II II II II II I I I II II II II II II II I I I II II II II II II II and thermophilous communities on dry soils in poorly anthropized contexts (Allegrezza et al 2019).…”

Section: Resultsmentioning

confidence: 98%

“…The characteristic species of the order Chelidonio-Robinetalia pseudoacaciae and Robinietea class except for A. altissima (Robinietea class) are present locally and with low coverage values especially in the xerophilous aspects similarly to what happens for the thermophilous communities of the association Rubio peregrinae-Robinietum pseudoacaciae(Allegrezza et al 2019). However, as highlighted inAllegrezza et al (2019), the Lauro nobilis-Robinion pseudoacaciae alliance includes, in addition to the typically nitrophilous aspects on soils rich in organic matter, also xerophilousTable 1. Mediterranean and sub-Mediterranean A. altissima forest communities belong to the alliance Lauro nobilis-Robinion pseudoacaciae.…”

mentioning

confidence: 95%

“…It includes "seral forest-clearing and anthropogenic successional scrub and thickets on nutrient-rich soils of temperate Europe" (Mucina et al 2016) but it includes also thermophilus and xerophilous communities such as those of the Euphorbio cyparissiae-Robinietalia order defined as "tortuous and xerophilous Black Locust stands of thermophilus habitats" and on poor soils" (Vitkova and Kolbek 2010). Recently in Allegrezza et al (2019) was described the Lauro nobilis-Robinion pseudoacaciae alliance for the peri-Adriatic sector of Central Italy, that brings together forest and pre-forest coenoses dominated by R. pseudoacacia that include forests communities dominated by other invasive alien tree species that have developed in the Mediterranean macroclimate territories of central and southern Italy that also extend into the temperate macroclimate of the sub-Mediterranean variant. Currently, in literature, there is only one A. altissima syntaxon, described for est-Romania by Sîrbu & Oprea (2010) called Balloto nigrae-Ailanthetum altissimae.…”

Section: Introductionmentioning

confidence: 99%

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First syntaxonomical contribution to the invasive Ailanthus altissima (Mill.) Swingle forest communities at its southern limit in Europe

Montecchiari¹,

Allegrezza²,

Pelliccia³

et al. 2020

Plant Sociology

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Ailanthus altissima (tree of heaven), an invasive alien tree native to China, has become invasive all over the world and in Italy is present in all the administrative regions where it can form dense forest communities. Although there are several ecological studies on this species there is a lack of floristic-vegetational data for southern-Europe. The study presents the results of a floristic vegetational study on A. altissima forest communities of central Italy that aims to highlight the possible floristic-vegetational autonomy of these coenoses. The results have allowed the characterization of A. altissima coenoses at the ecological, biogeographic, syntaxonomic and landscape levels. These represent first A. altissima syntaxa described for the Italian peninsula and for southern-Europe. We propose two new sub-Mediterranean and Mediterranean associations comprised in the recently described alliance Lauro nobilis-Robinion pseudoaciae, in the Chelidonio-Robinietalia order and the Robinietea class: Asparago acutifolii-Ailanthetum altissimae: forest community with stratified structure and high canopy density on the warmer slopes of the hills in dry soil conditions and low anthropic disturbance and Aro italici-Ailanthetum altissimae: paucispecific forest communities with a monolayered structure typically found in agricultural, and peri-urban areas on pelitic, alluvial silty-sandy substrates, in conditions of edaphic humidity and high anthropogenic disturbance. The comparison with literature data highlights the autonomy of these associations of the sub-Mediterranean and Mediterranean alliance Lauro nobilis-Robinion pseudoacaciae alliance from the Balloto nigrae-Ailanthetum altissimae association of the Central and SE-European Balloto nigrae-Robinion pseudoacaciae alliance.

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“…With notable exceptions (e.g. Jurko 1964;Hadač and Sofron 1980;Vítková and Kolbek 2010;Sîrbu and Oprea 2011;Allegrezza et al 2019), the large majority of vegetation studies, especially outside Europe, are still mostly focused on natural and semi-natural phytocoenoses with few or no aliens (Chytrý et al 2009;Pyšek and Chytrý 2014).…”

Section: Introductionmentioning

confidence: 99%

A first checklist of the alien-dominated vegetation in Italy

Viciani¹,

Vidali²,

Gigante³

et al. 2020

Plant Sociology

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This study provides a first step toward the knowledge of the alien-dominated and co-dominated plant communities present in Italy. The first ever checklist of the alien phytocoenoses described or reported in literature for the Italian territory has been compiled, produced by data-mining in national and local thematic literature. The resulting vegetation-type draft-list has been checked in the light of the most recent syntaxonomic documentation and updated with regards to syntaxonomy and nomenclature, with special reference to the frame proposed in the Italian Vegetation Prodrome. The list includes 27 vascular and one bryophyte vegetation classes, hosting 194 low rank alien-dominated syntaxa. The different vegetation types detected for each syntaxonomic class and macro-vegetation group, defined by physiognomical and ecological attributes, are discussed.

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Syntaxonomy of the Robinia pseudoacacia communities in the central peri-adriatic sector of the Italian peninsula

Cited by 11 publications

References 24 publications

Ailanthus altissima Forests Determine a Shift in Herbaceous Layer Richness: A Paired Comparison with Hardwood Native Forests in Sub-Mediterranean Europe

Ailanthus altissima Forests Determine a Shift in Herbaceous Layer Richness: A Paired Comparison with Hardwood Native Forests in Sub-Mediterranean Europe

First syntaxonomical contribution to the invasive Ailanthus altissima (Mill.) Swingle forest communities at its southern limit in Europe

A first checklist of the alien-dominated vegetation in Italy

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