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454 results for “Alien species”
Figure 2 in New records of alien and potentially invasive grass (Poaceae) species for southern Africa
Figure 2. Agrostis capillaris global distribution map, with country- or regional-level shading, taken and modified from POWO (2020).
Figure 5 in New records of alien and potentially invasive grass (Poaceae) species for southern Africa
Figure 5. Jarava plumosa; A, whole plant; B, inflorescence close-up; C, floret. Image A of R.J. Soreng et al. ZA-30 (US), B and C of R.J. Soreng et al. ZA-30 (PRE).
Figure 4 in New records of alien and potentially invasive grass (Poaceae) species for southern Africa
Figure 4. Festuca rubra global distribution map, with country- or regional-level shading, taken and modified from POWO (2020).
Figure 3 in New records of alien and potentially invasive grass (Poaceae) species for southern Africa
Figure 3. Festuca rubra; A, whole plant; B, lateral-tending rhizome covered in cataphylls; C, leaf sheath and junction with blade of a tiller showing strigose hairs; D, spikelet; E, base of palea with lemma removed to reveal the ovary and stamens; F, close-up of glabrous ovary apex. Images A and B of S.P. Sylvester et al. 3455 (US), C–F of S.P. Sylvester et al. 3455 (PRE).
Fig. 2 in Short Communication New records and ecological data on the alien species Colasposoma dauricum and Luperomorpha xanthodera (Coleoptera: Chrysomelidae) in Italy
Fig. 2 - Images of the species considered in this study. / Immagini delle specie considerate in questo studio. A-C) Colasposoma dauricum; A) dorsal view / vista dorsale. B) frontal view / vista frontale. C) lateral view / vista laterale. D-F) Luperomorpha xanthodera; D) dorsal view / vista dorsale. E) frontal view / vista frontale. F) lateral view / vista laterale.
Fig. 1 in Short Communication New records and ecological data on the alien species Colasposoma dauricum and Luperomorpha xanthodera (Coleoptera: Chrysomelidae) in Italy
Fig. 1 - Records of Colasposoma dauricum in Italy: localities from Montagna et al. (2016) in dark blue, and the new record in light blue. Records of Luperomorpha xanthodera in Italy: in red, the localities from Del Bene & Conti (2009) and Farina (2011), and in yellow the new records. / Segnalazioni di Colasposoma dauricum in Italia: in blu scuro, le località da Montagna et al. (2016) e, in azzurro, il nuovo dato. Segnalazioni di Luperomorpha xanthodera in Italia: in rosso, le località da Del Bene & Conti (2009) e Farina (2011) e, in giallo, i nuovi dati.
Fig. 1 in Alien hitchhiker insect species detected from the international vessels entering into Korea in 2021
Fig. 1. Body photos on detected individuals of the alien hitchhiking insect species from the international vessels. A. Chondracris rosea (Acrididae, Orthoptera); B. Mecopoda elongata (Tettigoniidae, ditto); C. Epidaus famulus (Reduviidae, Hemiptera); D. Poecilocoris druraei (Scutelleridae, ditto); E, F. Neochauliodes meridionalis (Corydalidae, Megaloptera); G. Calathus fuscipes (Carabidae, Coleoptera); H. Odontolabis cuvera (Lucanidae, ditto); I. Eriopis chilensis (Coccinellidae, ditto); J. Sagra femorata (Chrysomelidae, ditto); K. Anoplophora horsfieldii (Cerambycidae, ditto); L. Cryptocheilus australis (Pompilidae, Hymenoptera); M. Atta colombica (Formicidae, ditto); N. Eucera nigrescens (Apidae, ditto); O. Palpita quadristigmalis (Crambidae, Lepidoptera).
Fig. 2 in Alien hitchhiker insect species detected from the international vessels entering into Korea in 2021
Fig. 2. Body photos on detected individuals of the alien hitchhiking insect species from the international vessels. A. Arippara disticha (Pyralidae, Lepidoptera); B, C. Blenina donans (Nolidae, ditto); D. Gadirtha fusca (Nolidae, ditto); E. Chloroclystis pyrrholopha (Geomet- ridae, ditto); F. Achaea serva (Erebidae, ditto); G. Anomis combinans (Erebidae, ditto); H. Eudocima procus (Erebidae, ditto); I. Laspeyria subrosea (Erebidae, ditto); J. Mimophisma delunaris (Erebidae, ditto); K, L. Euhampsonia serratifera (Notodontidae, ditto); M. Dendrolimus punctatus (Lasiocampidae, ditto); N. Clanis stenosema (Sphingidae, ditto).
Mandible morphology as a tool to investigate origin, adaptation and stress in invasive alien species. First insights into Callosciurus erythraeus in Europe
<p>When an alien species is introduced in a new area, the number of founding individuals affects the severity of the population bottleneck, hence the new population may be distinctively different, both genetically and phenotypically, from the parent population from which it is derived. In this study we investigated the variation in shape and size of the mandible among and within three populations of the invasive Pallas’s squirrel, a tree squirrel native to SE Asia and introduced in Italy, Belgium and France. Significant differences in both size and shape of the mandible were found among all population pairs, with France being the most distinct. French squirrels showed a larger and slender mandible with a broad angular process, a restricted condyle, and a backward-oriented coronoid process. The Italian and the Belgian population differ at a lesser extent, the Italian squirrels having a lower coronoid process, a broader angular apophysis, and a restricted condyle. s. Size explained 15% of the total shape variation, but the orientation of allometric trajectories did not reveal any significant difference among populations. French squirrels showed the highest fluctuating asymmetry (both size and shape) of the right versus the left mandible, the Italians the highest directional asymmetry. Results are discussed in terms of different selective pressures in the invaded areas related to functionally mastication, and possible factors affecting fluctuating and directional asymmetry. The hypothesis of the classic mandibular two-module organization of rodent mandible (alveolar region vs ascending ramus) was confirmed both before and after correcting for size.</p>
Figure 7. A in Genetic characterization of the raccoon dog (Nyctereutes procyonoides), an alien species in the Baltic region
Figure 7. A median joining network based on mtDNA sequences of N. procyonoides. The circles represent haplotypes, with size proportional to relative frequencies. The network branches linking the cycles indicate one mutation step; two or more mutations are represented by slashes crossed with the network branches.
Figure 6. A in Genetic characterization of the raccoon dog (Nyctereutes procyonoides), an alien species in the Baltic region
Figure 6. A geographical distribution of the mtDNA control region haplotypes in Europe. Pie charts show the proportions of haplotypes.
Figure 5. A in Genetic characterization of the raccoon dog (Nyctereutes procyonoides), an alien species in the Baltic region
Figure 5. A Bayesian phylogenetic tree constructed from haplotypes of N. procyonoides, based on the complete sequences of the mitochondrial control region. Numbers above the branches show the Bayesian posterior probabilities. Lithuanian haplotypes were marked with solid triangles. I and II indicate the number of the haplogroup.
Figure 4. A in Genetic characterization of the raccoon dog (Nyctereutes procyonoides), an alien species in the Baltic region
Figure 4. A maximum parsimony tree constructed from haplotypes of N. procyonoides, based on the mtDNA control region. Numbers above the branches show the bootstrap values. Lithuanian haplotypes were marked with solid triangles. I and II indicate the number of the haplogroup.
Figure 2. A in Genetic characterization of the raccoon dog (Nyctereutes procyonoides), an alien species in the Baltic region
Figure 2. A maximum likelihood tree constructed from haplotypes of N. procyonoides, based on the mtDNA control region. Numbers above the branches show the bootstrap values. Lithuanian haplotypes were marked with solid triangles. I, II, and III indicate the number of the haplogroup.
Figure 1. A in Genetic characterization of the raccoon dog (Nyctereutes procyonoides), an alien species in the Baltic region
Figure 1. A map showing: (a) the distribution of raccoon dog N. procyonoides in Europe (Kauhala and Kowalczyk, 2011), and (b) the sampling localities of the present study (triangles). (b) Introduction sites are marked by circles (according to Bobrov et al., 2008). The distribution of mtDNA haplotypes belonging to haplogroup II are marked in outlined triangles.
Figure 2 in An alien species or another perspective to the freshwater gobies puzzle: a new finding in Lake Prespa
Figure 2. Economidichthys pygmaeus from Lake Prespa (a), and the perianal organ of one of the specimens (b).
Figure 1 in An alien species or another perspective to the freshwater gobies puzzle: a new finding in Lake Prespa
Figure 1. Distribution of Economidichthys sp. in western Greece (a) the location of Lake Prespa, and the sampling sites (b).
Figure 1 in Leptoglossus occidentalis (Heteroptera: Coreidae) and Harmonia axyridis (Coleoptera: Coccinellidae), two new invasive alien species for insect fauna of Macedonia
Figure 1. The finding sites of Leptoglossus occidentalis Heidemann (triangle) and Harmonia axyridis (Pallas) (point) in Macedonia.
Figure 2 in Leptoglossus occidentalis (Heteroptera: Coreidae) and Harmonia axyridis (Coleoptera: Coccinellidae), two new invasive alien species for insect fauna of Macedonia
Figure 2. The western conifer seed bug, Leptoglossus occidentalis Heidemann found on Pinus nigra at Prilep Lake.
Figure 4 in First DNA barcoding of a new alien species Glycaspis brimblecombei Moore, 1964 (Hemiptera: Aphalaridae) in Croatia with a distribution note
Figure 4. Neighbor-joining phylogenetic tree constructed by sequences of the mtCOI-3P of Glycaspis brimblecombei Lokrum, Croatia of Glycaspis species from BOLD and GenBank databases, based on Kimura-2-parameter distance model. Numbers at nodes are NJ bootstrap support values calculated from 2000 bootstrap replicates.
ScienceDex guides
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
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.