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343 results for “invasive aliens”
Fig. 1 in Native Bugseed Species Corispermum Intermedium Schweigg And Alien Corispermum Pallasii Steven In Coastal Habitats Of Latvia - New Knowledges Of Distribution And Invasions
Fig. 1. Locations of transects in coastal habitats in the whole seashore of Latvia (Explanation of transects numbers see Table 1).
Fig. 3 in Native Bugseed Species Corispermum Intermedium Schweigg And Alien Corispermum Pallasii Steven In Coastal Habitats Of Latvia - New Knowledges Of Distribution And Invasions
Fig. 3. Distribution of Corispermum intermedium Schweigg (left) and C. pallasiii Steven (right) in Latvia (1st row – localities known till 1940; 2nd row – localities known 1940 – 1990; 3rd row - localities known or verified since 1990).
Figure 6 in New records of alien and potentially invasive grass (Poaceae) species for southern Africa
Figure 6. Jarava plumosa global distribution map, with country- or regional-level shading, taken and modified from POWO (2020).
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. A in Drought-associated absence of alien invasive anchorworm, Lernaea cyprinacea (Copepoda: Lernaeidae), is related to changes in fish health
Fig. 2. A) Lernaea cyprinacea infecting Oreochromis mossambicus. B) O. mossambicus skin damage from L. cyprinacea infection, before drought. C) Uninfected O. mossambicus, during drought.
Fig. 3 in Drought-associated absence of alien invasive anchorworm, Lernaea cyprinacea (Copepoda: Lernaeidae), is related to changes in fish health
Fig. 3. Mean ± 1 s.d. condition factor, somatic indices, and health assessment index values from raw data for Lernaea cyprinacea infected and uninfected Oreochromis mossambicus. All infected fish were collected prior to drought in 2013 and indicated in dark gray. All uninfected fish were collected during drought in 2016 and indicated in light gray. GCF = gutted condition factor, HSI = hepatosomatic index, SSI = spleenosomatic index, and GSI = gonadosomatic index. The mean value of each variable is reported above the corresponding bar.
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 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 5 in Motivations and contributions of volunteer groups in the management of invasive alien plants in South Africa's Western Cape province
Figure 5. Challenges (n = 56) faced by individual volunteers in the management of invasive alien plant management in Western Cape, South Africa.
Figure 4 in Motivations and contributions of volunteer groups in the management of invasive alien plants in South Africa's Western Cape province
Figure 4. Reasons for initial engagement (n = 71) in volunteering and the current motivations (n = 86) for volunteers to be involved in the management of invasive alien plant species in Western Cape, South Africa.
Figure 2 in Motivations and contributions of volunteer groups in the management of invasive alien plants in South Africa's Western Cape province
Figure 2. Motivations (n = 35) for forming volunteer groups that remove alien invasive plants in Western Cape, South Africa.
Figure 1 in Motivations and contributions of volunteer groups in the management of invasive alien plants in South Africa's Western Cape province
Figure 1. Identified volunteer groups (52) in Western Cape of South Africa. Groups that participated in the survey (26) are indicated by circles that also show group sizes (individual members per group). Groups that did not participate in the survey are indicated by blue circles. The green area on the map represents the fynbos biome.
Figure 3 in Motivations and contributions of volunteer groups in the management of invasive alien plants in South Africa's Western Cape province
Figure 3. Challenges (n = 26) faced by volunteering by groups in the management of invasive alien plants in Western Cape, South Africa.
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: DAYO: Invasive Alien Reptiles in the Philippines.
Natural history specimen data linked to collectors and determiners held within, "DAYO: Invasive Alien Reptiles in the Philippines". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/e8f929c6-25f2-46dd-bab1-7968b4d624f5">https://bionomia.net/dataset/e8f929c6-25f2-46dd-bab1-7968b4d624f5</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/e8f929c6-25f2-46dd-bab1-7968b4d624f5">https://gbif.org/dataset/e8f929c6-25f2-46dd-bab1-7968b4d624f5</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.
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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.