1. Unpublished Mediterranean records of marine alien and cryptogenic speciesStelios Katsanevakis, Dimitris Poursanidis, Domen Trkov, Lovrenc Lipej, Ana Fortič, Martina Orlando-Bonaca, Borut Mavrič, 2020, original scientific article Abstract: Good datasets of geo-referenced records of alien species are a prerequisite for assessing the spatio-temporal dynamics of biological invasions, their invasive potential, and the magnitude of their impacts. However, with the exception of first records on a country level or wider regions, observations of species presence tend to remain unpublished, buried in scattered repositories or in the personal databases of experts. Through an initiative to collect, harmonize and make such unpublished data for marine alien and cryptogenic species in the Mediterranean Sea available, a large dataset comprising 5376 records was created. It includes records of 239 alien or cryptogenic taxa (192 Animalia, 24 Plantae, 23 Chromista) from 19 countries surrounding the Mediterranean Sea. In terms of records, the most reported Phyla in descending order were Chordata, Mollusca, Chlorophyta, Arthropoda, and Rhodophyta. The most recorded species was Caulerpa cylindracea, followed by Siganus luridus, Magallana sp. (cf. gigas or angulata) and Pterois miles. The dataset includes records from 1972 to 2020, with the highest number of records observed in 2018. Among the records of the dataset, Dictyota acutiloba is a first record for the Mediterranean Sea. Nine first country records are also included: the alga Caulerpa taxifolia var. distichophylla, the cube boxfish Ostracion cubicus, and the cleaner shrimp Urocaridella pulchella from Israel; the sponge Paraleucilla magna from Libya and Slovenia; the lumpfish Cyclopterus lumpus from Cyprus; the bryozoan Celleporaria vermiformis and the polychaetes Prionospio depauperata and Notomastus aberans from Malta.
Keywords: non-native species, non-indigenous, distribution, citizen science, invasive alien species, geo-referenced records, Mediterranean Sea
Published in DiRROS: 22.07.2024; Views: 28; Downloads: 13
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2. Virome analysis of signal crayfish (Pacifastacus leniusculus) along its invasion range reveals diverse and divergent RNA virusesKatarina Bačnik, Denis Kutnjak, Silvija Černi, Ana Bielen, Sandra Hudina, 2021, original scientific article Abstract: Crayfish are a keystone species of freshwater ecosystems and a successful invasive species. However, their pathogens, including viruses, remain understudied. The aim of this study was to analyze the virome of the invasive signal crayfish (Pacifastacus leniusculus) and to elucidate the potential differences in viral composition and abundance along its invasion range in the Korana River, Croatia. By the high-throughput sequencing of ribosomal RNA, depleted total RNA isolated from the crayfish hepatopancreas, and subsequent sequence data analysis, we identified novel and divergent RNA viruses, including signal crayfish-associated reo-like, hepe-like, toti-like, and picorna-like viruses, phylogenetically related to viruses previously associated with crustacean hosts. The patterns of reads abundance and calculated nucleotide diversities of the detected viral sequences varied along the invasion range. This could indicate the possible influence of different factors and processes on signal crayfish virome composition: e.g., the differences in signal crayfish population density, the non-random dispersal of host individuals from the core to the invasion fronts, and the transfer of viruses from the native co-occurring and phylogenetically related crayfish species. The study reveals a high, previously undiscovered diversity of divergent RNA viruses associated with signal crayfish, and sets foundations for understanding the potential risk of virus transmissions as a result of this invader’s dispersal.
Keywords: signal crayfish virome, RNA viruses, invasive alien species, invasion range, high-throughput sequencing
Published in DiRROS: 19.07.2024; Views: 52; Downloads: 24
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3. New alien Mediterranean biodiversity records (August 2022)Francesco Tiralongo, Okan Akyol, Sara A. A. Al-Mabruk, Pietro Battaglia, Damla Beton, Banu Bitls, John Joseph Borg, Marc Bouchoucha, Melih Ertan Çinar, Fabio Crocetta, Branko Dragičević, Jakov Dulčić, Athanasios Evangelopoulos, Julian Evans, Ana Fortič, Robin P. M. Gauff, Constantinos Georgiadis, Mehmet Gökoğlu, Daniele Grech, Tamar Guy-Haim, Mehmet Fatih Huseyinoglu, Domen Trkov, 2022, original scientific article Abstract: In this Collective Article on alien and cryptogenic diversity in the Mediterranean Sea we report a total of 19 species belonging to nine Phyla and coming from nine countries. Several of these records concern fish species, and of particular interest are the first records of: Terapon puta for Italian waters; Pteragopus trispilus from Malta; Plotosus lineatus from Cyprus; and the northernmost Mediterranean record of Lagocephalus sceleratus. The northernmost Mediterranean record was also reported for the sea urchin Diadema setosum. The portunid crab Thalamita poissonii was recorded for the first time in Libya. The copepod Pseudodiaptomus marinus was recorded for the first time in the Marmara Sea. The polychaete Branchiomma luctuosum was recorded for the first time from the Mediterranean coast of France. The alien anemone Diadumene lineata was recorded for the first time from Slovenia. The macroalgae Sargassum furcatum was recorded for the first time from Italy. The new Mediterranean records here reported help tracing abundance and distribution of alien and cryptic species in the Mediterranean Sea.
Keywords: alien diversity, cryptogenic diversity, new species, Mediterranean Sea
Published in DiRROS: 17.07.2024; Views: 71; Downloads: 45
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4. Stakeholders' views on the global guidelines for the sustainableuse of non-native treesAna Novoa, Giovanni Vimercati, Giuseppe Brundu, David M. Richardson, Urs Schaffner, Antonio Brunori, Thomas Campagnaro, Susan Canavan, Laura Celesti-Grapow, Michele de Sá Dechoum, Marjana Westergren, 2024, original scientific article Abstract: 1. A large number of non-native trees (NNTs) have been introduced globally andwidely planted, contributing significantly to the world's economy. Although someof these species present a limited risk of spreading beyond their planting sites, agrowing number of NNTs are spreading and becoming invasive leading to diversenegative impacts on biodiversity, ecosystem functions and human well- being. Tohelp minimize the negative impacts and maximize the economic benefits of NNTs,Brundu et al. developed eight guidelines for the sustainable use of NNTs glob-ally—the Global Guidelines for the Use of NNTs (GG-NNTs).2. Here, we used an online survey to assess perceptions of key stakeholders to-wards NNTs, and explore their knowledge of and compliance with the GG-NNTs.3. Our results show that stakeholders are generally aware that NNTs can providebenefits and cause negative impacts, often simultaneously and they consider thattheir organization complies with existing regulations and voluntary agreementsconcerning NNTs. However, they are not aware of or do not apply most of theeight recommendations included in the GG-NNTs.4. We conclude that effectively managing invasions linked to NNTs requires bothmore communication efforts using an array of channels for improving stakeholderawareness and implementation of simple measures to reduce NNT impacts (e.g. via GG-NNTs), and a deeper understanding of the barriers and reluctance ofstakeholders to manage NNT invasions.
Keywords: agroforestry, alien species, forestry, invasion risk, online survey, ornamental trees, perceptions, stakeholder engagement, sustainability, tree invasions
Published in DiRROS: 21.06.2024; Views: 131; Downloads: 64
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5. Citizen science is a vital partnership for invasive alien species management and researchMichael J.O. Pocock, Tim Adriaens, Sandro Bertolino, René Eschen, Franz Essl, Philip E. Hulme, Jonathan M. Jeschke, Helen E. Roy, Heliana Teixeira, Maarten De Groot, 2023, original scientific article Abstract: Invasive alien species (IAS) adversely impact biodiversity, ecosystem functions and socio-economics. Citizen science can be an effective tool for IAS surveillance, management and research, providing large datasets over wide spatial extents and long time periods, with public participants generating knowledge that supports action. We demonstrate how citizen science has contributed knowledge across the biological invasion process, especially for early detection and distribution mapping. However, we recommend that citizen science could be used more for assessing impacts and evaluating the success of IAS management. Citizen science does have limitations and we explore solutions to two key challenges: ensuring data accuracy and dealing with uneven spatial coverage of potential recorders (which limits the dataset’s ‘fit for purpose’). Greater co-development of citizen science with public stakeholders will help us better realise its potential across the biological invasion process and across ecosystems globally while meeting the needs of participants, local communities, scientists and decision-makers.
Keywords: biosecurity, community science, invasion continuum, invasive alien species, monitoring, volunteers
Published in DiRROS: 25.01.2024; Views: 420; Downloads: 237
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6. Use of an arboretum and DNA barcoding for the detection and identification of leaf-mining insects on alien woody plantsNatalia I. Kirichenko, Stanislav Gomboc, Barbara Piškur, Maarten De Groot, 2023, original scientific article Abstract: Arboreta serve as effective tools for identifying alien insect pests and novel trophic associations. In this study, we used an arboretum in Slovenia to survey woody plants and identify both alien and native leaf miners. The leaves and twigs of 50 woody plant species and their cultivars were examined for characteristic damage. We used an integrative approach that combined identification based on leaf mines and DNA barcoding of the larvae and pupae found in the mines. In total, 62 leaf-mining species were identified, including eight alien species, of which the heliozelid Coptodisca lucifluella (Clemens, 1860) and the agromyzid Cerodontha unisetiorbita Zlobin, 1992 were documented for Slovenia for the first time. Additionally, three presumably native Gracillariidae moths Phyllocnistis labyrinthella (Bjerkander, 1790), P. ramulicola Langmaid & Corley, 2007 and P. saligna (Zeller, 1839) represented the first record for Slovenia. Furthermore, we documented 23 novel-to-science trophic associations, 20 of which involved native insects and alien woody plants, primarily from Asia. This study highlights the importance of arboreta and botanical gardens for the interception of invasive alien insects and the early detection of trophic shifts of native insects to alien plants, which can aid in predicting their potential spread.
Keywords: botanical garden, sentinels, leaf miners, alien species, non-native trees, novel trophic associations, DNA barcoding, Slovenia
Published in DiRROS: 24.03.2023; Views: 701; Downloads: 312
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7. Where to search: the use of opportunistic data for the detection of an invasive forest pestMaarten De Groot, Nikica Ogris, Mark van der Meij, Michael J.O. Pocock, 2022, original scientific article Abstract: Early detection is important for the management of invasive alien species. In the last decade citizen science has become an important source of such data. Here, we used opportunistic records from the “LIFE ARTEMIS” citizen science project, in which people submitted records from places where they observed tree pests, to understand the distribution of a rapidly-spreading forest pest: the oak lace bug (Corythucha arcuata) in Slovenia. These citizen science records were not distributed randomly. We constructed a species distribution model for C. arcuata that accounted for the biased distribution of citizen science by using the records of other tree pests and diseases from the same project as pseudo-absences (so-called constrained pseudo-absences), and compared this to a model with pseudo-absences selected randomly from across Slovenia. We found that the constrained pseudo-absence model showed that C. arcuata was more likely to be found in east, in places with more oak trees and at lower elevations, and also closer to highways and railways, indicating introduction and dispersal by accidental human transport. The outputs from the model with random pseudo-absences were broadly similar, although estimates from this model tended to be higher and less precise, and some factors that were significant (proximity to minor roads and human settlements) were artefacts of recorder bias, showing the importance of taking the distribution of recording into account wherever possible. The finding that C. arcuata is more likely to be found near highways allows us to design advice for where future citizen science should be directed for efficient early detection.
Keywords: Oak lace bug, ecological modelling, citizen science, invasive alien species, early detection, Corythucha arcuata
Published in DiRROS: 08.09.2022; Views: 627; Downloads: 331
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8. Handbook for non native tree species in the urban spaceAjša Alagić, Aleksander Marinšek, Ana Dolenc, Andrey Krasovskiy, Anica Simčič, Anja M. Bindewald, Anja Müller-Meißner, Bénédicte Baxerres, Claudia Cocozza, Debojyoti Chakraborty, Janez Kermavnar, Lado Kutnar, Simon Zidar, Tina Trampuš, Živa Bobič Červek, 2022, dictionary, encyclopaedia, lexicon, manual, atlas, map Keywords: non-native tree species, Alps, invasive alien species, forest management, urbanspace, climate changes
Published in DiRROS: 12.08.2022; Views: 732; Downloads: 246
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9. Management of non-native tree species in forests of the Alpine spaceSonia Abluton, Ajša Alagić, Bénédicte Baxerres, Frédéric Berger, Anja M. Bindewald, Sylvain Bouquet, Martin Braun, Giuseppe Brundu, Patricia Detry, Freya-Isabel Georges, Janez Kermavnar, Lado Kutnar, Aleksander Marinšek, Anica Simčič, Simon Zidar, 2022, dictionary, encyclopaedia, lexicon, manual, atlas, map Keywords: non-native tree species, Alps, invasive alien species, forest management, climate changes
Published in DiRROS: 12.08.2022; Views: 777; Downloads: 248
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10. Identification handbook for non native tree species in the Alpine spaceAjša Alagić, Bénédicte Baxerres, Frédéric Berger, Anja M. Bindewald, Sylvain Bouquet, Giuseppe Brundu, Debojyoti Chakraborty, Patricia Detry, Freya-Isabel Georges, Quentin Guillory, Janez Kermavnar, Lado Kutnar, Katharina Lapin, Aleksander Marinšek, Eric Mermin, Anja Müller-Meißner, Janine Oettel, Anica Simčič, Simon Zidar, 2022, dictionary, encyclopaedia, lexicon, manual, atlas, map Keywords: non-native tree species, Alps, invasive alien species
Published in DiRROS: 12.08.2022; Views: 776; Downloads: 268
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