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454 results for “Alien species”
Figure 1 in First DNA barcoding of a new alien species Glycaspis brimblecombei Moore, 1964 (Hemiptera: Aphalaridae) in Croatia with a distribution note
Figure 1. Distribution of species Glycaspis brimblecombei. A. Spread of the species G. brimblecombei. The coloration of the lines shows the spread of the species in the temporal scale (excluding localities for which the year of occurrence of the species is not known), B. and C. Location of sampling – Botanical Garden of the Institute for Marine and Coastal Research on the island of Lokrum.
Figure 3 in First DNA barcoding of a new alien species Glycaspis brimblecombei Moore, 1964 (Hemiptera: Aphalaridae) in Croatia with a distribution note
Figure 3. Developmental stages of Glycaspis brimblecombei: A. lerps, nymphs and egg cluster, B. adult (scale: 1 mm).
Figure 2. Alien spionid polychaetes from Sukhum Bay, Black Sea. A in First occurrence of the invasive alien species Streblospio gynobranchiata (Rice & Levin, 1998) and Polydora cornuta Bosc, 1802 (Polychaeta: Spionidae) on the coast of Abkhazia (Sukhum Bay, Black Sea)
Figure 2. Alien spionid polychaetes from Sukhum Bay, Black Sea. A – general view of Streblospio gynobranchiata (female, length 6.35 mm), B,C – Polydora cornuta morphology (fifth chaetiger): major spines with tooth (at) and companion chaetae (bc). Scale bars: 10 μm.
Linked collectors and determiners for: The Afrotropical Miomantis caffra Saussure 1871 and M. paykullii Stal 1871: first records of alien mantid species in Portugal and Europe, with an updated checklist of Mantodea in Portugal (Insecta: Mantodea).
Natural history specimen data linked to collectors and determiners held within, "The Afrotropical Miomantis caffra Saussure 1871 and M. paykullii Stal 1871: first records of alien mantid species in Portugal and Europe, with an updated checklist of Mantodea in Portugal (Insecta: Mantodea)". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/d3210a10-1449-4e51-a9c0-0cff2fafdd6e">https://bionomia.net/dataset/d3210a10-1449-4e51-a9c0-0cff2fafdd6e</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/d3210a10-1449-4e51-a9c0-0cff2fafdd6e">https://gbif.org/dataset/d3210a10-1449-4e51-a9c0-0cff2fafdd6e</a>. Formatted as a Frictionless Data package.
Linked collectors and determiners for: NU: KwaZulu-Natal Invasive Alien Species (1821-2011).
Natural history specimen data linked to collectors and determiners held within, "NU: KwaZulu-Natal Invasive Alien Species (1821-2011)". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/b79aa9e2-e14b-40df-98d6-10b98a618064">https://bionomia.net/dataset/b79aa9e2-e14b-40df-98d6-10b98a618064</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/b79aa9e2-e14b-40df-98d6-10b98a618064">https://gbif.org/dataset/b79aa9e2-e14b-40df-98d6-10b98a618064</a>. Formatted as a Frictionless Data package.
Linked collectors and determiners for: Invasive Alien plant species of Malawi.
Natural history specimen data linked to collectors and determiners held within, "Invasive Alien plant species of Malawi". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/6183f1f7-0513-4587-bee6-cad11e23002d">https://bionomia.net/dataset/6183f1f7-0513-4587-bee6-cad11e23002d</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/6183f1f7-0513-4587-bee6-cad11e23002d">https://gbif.org/dataset/6183f1f7-0513-4587-bee6-cad11e23002d</a>. Formatted as a Frictionless Data package.
Linked collectors and determiners for: Alien plant species of the Middle Volga Region (South-East of the European part of Russia).
Natural history specimen data linked to collectors and determiners held within, "Alien plant species of the Middle Volga Region (South-East of the European part of Russia)". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/0777230d-c252-4f99-9c16-cc63c09dfd52">https://bionomia.net/dataset/0777230d-c252-4f99-9c16-cc63c09dfd52</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/0777230d-c252-4f99-9c16-cc63c09dfd52">https://gbif.org/dataset/0777230d-c252-4f99-9c16-cc63c09dfd52</a>. Formatted as a Frictionless Data package.
FIG. 3. — Urocaridella pulchella n in New records of alien decapods (Crustacea) from the Mediterranean coast of Turkey, with a description of a new palaemonid species
FIG. 3. — Urocaridella pulchella n. sp., Güvercin Ada, 1 ♂ holotype cl 5.7 mm: A, carapace, lateral aspect and detail of upper margin, (scale bar of the latter: 1 mm); B, abdomen, lateral aspect; C, first and second pereopods; D, chela of first pereopod. Scale bars:
FIG. 2. — A, B, Urocaridella pulchella n in New records of alien decapods (Crustacea) from the Mediterranean coast of Turkey, with a description of a new palaemonid species
FIG. 2. — A, B, Urocaridella pulchella n. sp.; A, Güvercin Ada, Kaş, 12 m depth, rocky bottom, night dive, VIII.2003; B, Kaş, 10-15 m depth, rocky bottom, night dive, XI.2003; C, Melicertus hathor (Burkenroad, 1959), Tatlisu Limani, 4 m depth, sand, night dive, IX.2002; D, Metapenaeopsis aegyptia Galil, 1990, Fakdere, Kaş, 4 m depth, Posidonia meadow, night dive, IX.2002; E, Carupa tenuipes Dana, 1851, Dalyan, Muğla, 8 m depth, in a cave, night dive, 30.X.1996; F, Charybdis (Charybdis) hellerii (A. Milne-Edwards, 1867), Tekirova, 7 m depth, rocky bottom, night dive, VIII.2001.
Table S1 - Economic Costs of Protecting Islands from Invasive Alien Species
<p>Dataset analysed in relation to the paper 'Economic Costs of Protecting Islands from Invasive Alien Species' published in Conservation Biology in 2022</p>
Fig. 4 in Two Asian freshwater snails newly introduced into South Africa and an analysis of alien species reported to date
Fig. 4. Gyraulus chinensis from Amatikulu. Live specimens (4A–B, photos: H. Madsen) and specimen preserved in 70 % ethanol (4C, photo: N. Miranda). The shell of the specimen in 4B shows patches of erosion. Note the pigmented mantle in both live and preserved specimens.
Fig 3 in Two Asian freshwater snails newly introduced into South Africa and an analysis of alien species reported to date
Fig 3. (A) Tree based on 533 nucleotides of the cytochrome c oxidase subunit I mtDNA of lymnaeid samples, with the outgroup Planorbis corneus. (B) Tree based on 360 nucleotides of the mt 16S rDNA of lymnaeid samples, with the outgroup Stagnicola elodes. Numbers on branches represent Bayesian posterior probabilities percentages, neighbour-joining and maximum parsimony bootstrap values, respectively. Only values greater than 50 % are shown; * indicates support of <50 % for distance analysis. Figures adapted from Nadasan (2011). RRA – lymnaeid samples from Amatikulu, South Africa; LND – lymnaeid samples from Durban, South Africa.
Figure 1 in On the occurrence of the Synodontis eupterus (Mochokidae) in the Adriatic drainage system of Croatia: a case of an introduced aquarium species and suggestions for alien species detection measures
Figure 1. – Synodontis eupterus (from Mala Neretva River) (TL = 193 mm) (catalogue number SE-IOR 8112017).
Data from: Pathways of introduction of alien species in Norway
Open the record for dataset details and reuse information.
Traits data of naturalized and non-naturalized alien species of four Indonesian Botanic Gardens
Open the record for dataset details and reuse information.
Data from: The stronger, the better – trait hierarchy is driving alien species interaction
Multiple invaders commonly co-occur in native ecosystems and in some cases have been shown to facilitate each other thus exacerbating impacts on native species, while in other cases one invader may reduce the impact of another due to competition. We therefore aimed at identifying mechanisms driving alien species interactions. We conducted a common garden experiment investigating all pairwise combinations of 20 alien annual plant species in Germany. We first tested whether competition or facilitation occurred more often. Secondly, we determined whether individual traits, hierarchical or absolute trait distances, multivariate trait or phylogenetic distance explained alien plant interactions best. Thirdly, we assessed whether accounting for trait plasticity explains plant performance better than species-level trait averages. While the magnitude of interspecific competition compared to intraspecific competition was on average larger across the 190 alien species combinations, interspecific facilitation still occurred in 24% of cases. Interactions could be better explained by hierarchical trait distances which reflect competitive ability, compared to phylogenetic and multivariate trait distance (reflecting niche differences). This finding supports criticisms about the applicability of testing limiting similarity versus environmental filtering and the community phylogenetic approach. Specifically, when growing taller and having a lower specific leaf area than the co-occurring alien neighbour, biomass and seed number of individuals in mixture increased compared to growing alone. Effects of seed mass, root:shoot ratio and flowering time depended on the performance measure. In contrast to recent suggestions, accounting for trait plasticity did not necessarily explain plant performance better than models using species-level trait averages. These results advance our fundamental understanding of trait-interaction relationships, strengthening recent findings on the importance of competitive hierarchy in shaping interactions and community structure. In particular, applying these concepts to the novel case of alien-alien interactions, is crucial given the continuing accumulation of alien species around the globe.
Data from: Ecological impact assessments of alien species in Norway
<ol> <li>Due to globalisation, trade and transport, the spread of alien species is increasing dramatically. Some alien species become ecologically harmful by threatening native biota. This can lead to irreversible changes in local biodiversity and ecosystem functioning, and, ultimately, to biotic homogenisation.</li> <li>We risk-assessed all alien plants, animals, fungi and algae, within certain delimitations, that are known to reproduce in Norway. Mainland Norway and the Arctic archipelago of Svalbard plus Jan Mayen were treated as separate assessment areas. Assessments followed the Generic Ecological Impact Assessment of Alien Species (GEIAA) protocol, which uses a fully quantitative set of criteria.</li> <li>A total of 1519 species were risk-assessed, of which 1183 were species reproducing in mainland Norway. Among these, 9% were assessed to have a severe impact, 7% high impact, 7% potentially high impact, and 49% low impact, whereas 29% had no known impact. In Svalbard, 16 alien species were reproducing, one of which with a severe impact.</li> <li>The impact assessments also covered 319 so-called door-knockers, i.e. species that are likely to establish in Norway within 50 years, and 12 regionally alien species. Of the door-knockers, 8% and 10% were assessed to have a severe and high impact, respectively.</li> <li>The impact category of most species was driven by negative interactions with native species, transformation of threatened ecosystems, or genetic contamination. The proportion of alien species with high or severe impact varied significantly across the different pathways of introduction, taxonomic groups, time of introduction and the environments colonised, but not across continents of origin.</li> <li>Given the large number of alien species reproducing in Norway and the preponderance of species with low impact, it is neither realistic nor necessary to eradicate all of them. Our results can guide management authorities in two ways. First, the use of quantitative assessment criteria facilitates the prioritisation of management resources across species. Second, the background information collected for each species, such as introduction pathways, area of occupancy and ecosystems affected, helps designing appropriate management measures.</li> </ol>
Data from: Climate oscillation and alien species invasion influences oceanic seabird distribution
Spatial and temporal distribution of seabird transiting and foraging at sea is an important consideration for marine conservation planning. Using at-sea observations of seabirds (n = 317), collected during the breeding season from 2012 to 2016, we built boosted regression tree (BRT) models to identify relationships between numerically dominant seabird species (red-footed booby, brown noddy, white tern and wedge-tailed shearwater), geomorphology, oceanographic variability, and climate oscillation in the Chagos Archipelago. We documented positive relationships between red-footed booby and wedge-tailed shearwater abundance with the strength in the Indian Ocean Dipole, as represented by the Dipole Mode Index (6.7% and 23.7% contribution respectively). The abundance of red-footed boobies, brown noddies and white terns declined abruptly with greater distance to island (17.6%, 34.1% and 41.1% contribution respectively). We further quantified the effects of proximity to rat-free and rat-invaded islands on seabird distribution at sea, and identify breaking point distribution thresholds. We identified areas of increased abundance at sea and habitat use-age under a scenario where rats are eradicated from invaded nearby islands and recolonised by seabirds. Following rat eradication, abundance at sea of red-footed booby, brown noddy, and white terns increased by 14%, 17% and 3% respectively, with no important increase detected for shearwaters. Our results have implication for seabird conservation and island restoration. Climate oscillations may cause shifts in seabird distribution, possibly through changes in regional productivity and prey distribution. Invasive species eradications and subsequent island recolonization can lead to greater access for seabirds to areas at-sea, due to increased foraging or transiting through, potentially leading to distribution gains and increased competition. Our approach predicting distribution after successful eradications enables anticipatory threat-mitigation in these areas, minimising competition between colonies and thereby maximising the risk of success and the conservation impact of eradication programmes.
Data from: Plant-soil feedback contributes to predicting plant invasiveness of 68 alien plant species differing in invasive status
<p>Understanding what species characteristics allow some alien plants to become invasive while others fail is critical to our understanding of community assembly processes. While many characteristics have been shown to predict plant invasiveness, the importance of plant-soil feedback (PSF) in invasions has been difficult to assess since individual studies include only a few species and use disparate methodology. We studied PSF of 68 invasive and non-invasive alien species in a single two-phase common garden experiment, and compared the relative importance of PSF, residence time, phylogenetic novelty and plant traits for plant invasiveness. Additionally, we explored relationships between PSF, residence time and phylogenetic novelty. PSF for seedling establishment, but not for biomass, was a significant predictor of invasive status, with invasive species having more positive PSF than non-invasive species. Its explanatory power was, however, much lower than that of specific leaf area, height, and residence time. Phylogenetically novel species experienced less negative PSF than species with native congeners, suggesting they benefit more from enemy release. PSF of non-invasive species, contrary to that of invasive species, was becoming more negative with increasing residence time. We demonstrated that PSF for seedling establishment plays a role in predicting plant invasiveness and is a better predictor than more commonly studied PSF for plant biomass. Other species traits, such as specific leaf area, however, predict plant invasiveness much better than the PSF.</p>
IPBES Invasive Alien Species Assessment in Linked Open Data format
<p>This dataset contains the Thematic Assessment Report on Invasive Alien Species and their Control of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services in linked open data format.</p> <p>The structure of the file follows the IPBES ontology version 06: <a href="https://github.com/IPBES-Data/IPBES_Ontology">https://github.com/IPBES-Data/IPBES_Ontology</a></p> <p>The report is published in 2023 and consists of 6 chapters and a Summary for Policy Makers. For more information about the report, see: <a href="https://www.ipbes.net/ias" rel="nofollow">https://www.ipbes.net/ias</a></p> <p>For any questions and enquiries, please contact the IPBES Data and Knowledge Unit <a href="mailto:aidin.niamir@senckenberg.de">aidin.niamir@senckenberg.de</a></p>
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.