A second update to the checklist of the vascular flora alien to Italy

Plant Biosystems - An International Journal Dealing with all Aspects of Plant Biology, Journal Year: 2024, Volume and Issue: 158(2), P. 297 - 340

Published: March 3, 2024

Critical and updated alien species inventories are crucial to properly manage contrast biological invasions. After 6 years, a second update the inventory of vascular flora Italy is presented. It provides details on occurrence at administrative regional level and, for first time, floristic data San Marino. The checklist includes 1782 taxa (1673 species, 28 subspecies, 69 hybrids 12 cultivar groups not attributable specific binomial), distributed in 786 genera 159 families; 2 lycophytes, 13 ferns fern allies, 37 gymnosperms 1730 angiosperms. Among these, 154 archaeophytes 1628 neophytes. currently established 899 (649 naturalized 250 invasive), while 796 casual aliens, 1 assessed, 38 have been confirmed recent times, 4 considered extinct or possibly country, 40 doubtfully occurring Italy, unknown distribution 110 reported by mistake be excluded national level. This allows establish an up-to-date number (10,023) constituting whole (either native alien) Italian flora.

Language: Английский

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Crop Wild Relatives (CWRs) Threatened and Endemic to Italy: Urgent Actions for Protection and Use

Biology, Journal Year: 2022, Volume and Issue: 11(2), P. 193 - 193

Published: Jan. 26, 2022

An updated overview of the 29 threatened crop wild relatives (CWRs) endemic to Italy is presented, namely: Arrhenatherum elatius subsp. nebrodense, Barbarea rupicola, Brassica baldensis, glabrescens, macrocarpa, rupestris hispida, rupestris, tardarae, Brassicatrichocarpa, tyrrhena, villosa bivonana, brevisiliqua, drepanensis, tineoi, villosa, Daucus broteroi, carota nebrodensis, Diplotaxis scaposa, Festuca centroapenninica, Lathyrus apenninus, odoratus, Malus crescimannoi, Phalaris arundinacea rotgesii, Vicia brulloi, consentina, giacominiana, ochroleuca ochroleuca, tenuifolia elegans. Data concerning geographical distribution, ecology (including plant communities and habitats Directive 92/43/EEC), genetics (chromosome number, breeding system, and/or existence gene pools), threat status at national international level (Red Lists), key properties, in situ ex conservation were analyzed shown. At present, most listed CWRs, 23 out 29, have no pool all, so they are CWRs only according taxon group not concept. In addition, there a serious lack data on banks, with 16 species identified as high priority (HP) while 22 taxa (A) for conservation. With aim their protection, conservation, valorization, specific urgent actions recommended.

Language: Английский

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New Alien Plant Taxa for Italy and Europe: An Update

Plants, Journal Year: 2024, Volume and Issue: 13(5), P. 620 - 620

Published: Feb. 24, 2024

Despite the wide amount of scientific contributions published on alien plant species, their diffusion dynamics, and interactions with native taxa, it is increasingly difficult to slow down spreading negative impact habitats. Last recent years, in fact, a sharp rise number new taxa introduced Italy Europe has been recorded. The aim this work investigate most Italian territory order verify whether alarming trend still underway. Specimen collections and/or observations plants have performed as many 12 regions. All collected specimens are stored public or private herbaria. Taxa identified according literature from countries origin investigated while nomenclature followed current international references. Updates 106 reported. In particular, among 117 records, 89 first 27 changes status there 1 extinction. Seven for flora reported, two which Europe. administrative regions highest records Calabria (48), Sardegna (17) Sicilia (15). Five surveyed time, considered invasive aliens territory. unfrequent original results provided by work, over simple importance data itself, proves how floristic investigation, today, represents one effective tools broadening knowledge about dynamics.

Language: Английский

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Prickly Pear (Opuntia spp.) as an Invasive Species and a Potential Fodder Resource for Ruminant Animals

Sustainability, Journal Year: 2022, Volume and Issue: 14(7), P. 3719 - 3719

Published: March 22, 2022

Worldwide, the invasiveness of Opuntia spp. and its impact on various ecosystem services has been recognised especially in semi-arid areas where rainfall is erratic. The environments are habitats plants which have adapted to be able grow severe hot dry regions. normally thrives conditions high temperatures, low rainfall, saline soils it can also adapt survive severely degraded a limited nutrients supply. Its positive includes value as livestock fodder. Opuntia’s adaptability harsh conditions, matter yield, palatability significant levels energy, well availability at cost during season, decreases use expensive supplements conventional diets many areas. There need understand importance this invasive species when incorporated animal diets. As part control measures, controlling spread may assist reducing abundance while same time providing consistent supply forage season. Information nutritive value, incorporating means must understood recognise species’ contribution an ecosystem.

Language: Английский

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Alien flora in Calabria (Southern Italy): an updated checklist

Biological Invasions, Journal Year: 2022, Volume and Issue: 24(8), P. 2323 - 2334

Published: May 11, 2022

Abstract An updated checklist of the Calabrian alien vascular flora is presented. By way field, bibliographic, and herbarium research, we recorded 382 taxa (representing almost 14% all regional flora), which 371 are angiosperms, nine gymnosperms, two ferns. In relation to state spread, majority species casual (207 taxa; 54%), followed by naturalized (127; 33%) invasive (48; 13%), these last include four on list Union Concern, sensu Regulation (EU) no. 1143/2014. The most represented families Asteraceae (39 taxa) Poaceae (39). Among genera, Amaranthus (nine taxa), Prunus , Euphorbia Oxalis (seven make up those with greatest number taxa. A total 21 were reported for first time, three them new European ( Camptosema rubicundum, Musa ×paradisiaca and, only continental Europe, Ipomoea hederacea ), Italian peninsula Pelargonium graveolens, Schinus terebinthifolia ) 16 Aeonium arboreum, Asparagus asparagoides, Aspidistra elatior, Bidens sulphurea, Catalpa bignonioides, Citrus ×aurantium, Crassula ovata, Cucurbita ficifolia, Dimorphotheca ecklonis, Graptopetalum paraguayense subsp. paraguayense, Kalanchoë laxiflora, Nicotiana tabacum, Phytolacca dioica Portulaca umbraticola, Talinum paniculatum, Tecomaria capensis ). terms residence status, there 291 neophytes (76%), 73 archaeophytes (19%), 18 aliens (5%); group (45 out 48) among Concerning life forms, abundant groups therophytes (30.1%, 115 phanerophytes (29.6%, 113 taxa). Regarding habitats, 72% occur in artificial (199 taxa, 52%) agricultural habitats (75 20%). native Americas (159; 41.6%), numerous also originated Asia (76; 19.9%) Africa (56; 14.7%). introduced ornamental purposes (55%). Over past decade, Calabria have increased from 190 current While this trend could be linked some extent increasing awareness problem intensity research over recent decades, it probably due introductions resulting globalization that relentlessly affects whole planet.

Language: Английский

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An Update on the Introduction of New Alien Plant Taxa for Italy and Europe

Published: Feb. 2, 2024

A single paragraph of about 200 words maximum. For research articles, abstracts should give a pertinent overview the work. We strongly encourage authors to use following style structured abstracts, but without headings: (1) Background: Place question addressed in broad context and highlight purpose study; (2) Methods: briefly describe main methods or treatments applied; (3) Results: summarize article’s findings; (4) Conclusions: indicate conclusions interpretations. The abstract be an objective representation article it must not contain results that are presented substantiated text exaggerate conclusions.

Language: Английский

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The invasion history of Elodea canadensis and E. nuttallii (Hydrocharitaceae) in Italy from herbarium accessions, field records and historical literature

Biological Invasions, Journal Year: 2022, Volume and Issue: 25(3), P. 827 - 846

Published: Nov. 3, 2022

Abstract We analysed the invasion history of two North American macrophytes ( Elodea canadensis and E. nuttallii ) in Italy, through an accurate census all available herbarium field records, dating between 1850 2019, a rich literature collection describing initial introduction naturalisation phase that supports results obtained by occurrence records. arrived Italy before 1866 had phases, 1890s 1920s 1990s 2000s; , probably 1970s, started invading 2000 is still ongoing. Botanical gardens fish farming played crucial role dispersal both species. The current range species centred northern with scattered occurrences central southern regions. River Po represents barrier to Mediterranean region strategic monitoring site prevent peninsula. study detects differences niches during habitat switch occurred after 1980 their expansion phases. For corresponds second round. Further research can clarify whether round due confusion recently introduced cryptic new genotype, post-introduction evolution, or just increased scientific interest biological invasions.

Language: Английский

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New Data on Native and Alien Vascular Flora of Sicily (Italy): New Findings and Updates

Plants, Journal Year: 2023, Volume and Issue: 12(9), P. 1743 - 1743

Published: April 23, 2023

In this paper, based on fieldwork and herbaria surveys, new data concerning the presence of 32 native alien vascular species for Sicily (Italy) are provided. Among species, occurrence following taxa is reported first time or confirmed after many decades non-observation: Aira multiculmis, Arum maculatum, Carex flacca subsp. flacca, Mentha longifolia, Oxybasis chenopodioides, Najas minor Xiphion junceum. Furthermore, we document three (Cornus mas, Juncus foliosus Limonium avei) that, despite being repeatedly observed in literature, inexplicably omitted by most recent authoritative checklists regarding flora Italy. Finally, fifteen to (including one Europe, i.e., Pyrus betulifolia) seven poorly documented allochthonous island, two them, a status change proposed. These records allow us better define European national distribution targeted offer insights Sicily.

Language: Английский

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The abundance of alien species is associated with the impact of Alternanthera brasiliana (L.) Kuntze on aboveground vegetation and soil seed bank in Ile-Ife, (Nigeria)

Plant Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 25, 2025

Language: Английский

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The Winner Takes It All: a single genotype of Kalanchoe ×houghtonii is a global invader

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 7, 2025

Abstract Background and Aims Invasive alien plant species pose a global challenge, their impact is amplified by globalisation the accelerating pace of climate change. In mild-climate regions, drought-tolerant invasive plants showing broad environmental tolerance have competitive advantage. One example Kalanchoe × houghtonii (Crassulaceae), popularly known as “mother millions”. It hybrid resulting from interploid cross between K. daigremontiana delagoensis , both native to Madagascar. propagated an ornamental plant, has emerged invader in less than century. Four morphotypes this been identified, with different ploidy levels varying capacities. Here we aim investigate genomic variability behind invasion success . Methods We sampled 57 accessions houghtonii, daigremontiana, closely related taxa, including old herbarium materials, all over world. analysed genome size, chromosome numbers, sequenced whole genome, complete plastome sequence each accession, studied diversity ribosomal RNA genes. also performed detailed phylogenomic study using nuclear BUSCO Key Results Our reveals genetic cytogenetic morphotypes, shows that single tetraploid genotype (morphotype A) dominates populations, emerging first reported clonal capable worldwide colonisation. Morphotype A striking uniformity, high phenotypic plasticity, extremely rates vegetative reproduction, representing “general-purpose genotype”. Conclusions The astonishing reproductive capacity, adaptability speed at which colonising new regions spread highlight importance understanding hybridisation polyploidy ecosystems. findings call for need risk assessments before developing hybrids breeding may exhibit characteristics.

Language: Английский

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