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1,346 results for “rare species”
FIGURE 6 in The red-listed species Thamnurgus rossicus in East Europe is a synonym of the rare Central European species, T. petzi (Curculionidae: Scolytinae)
FIGURE 6. Phylogenetic trees resulting from three separate parsimony analyses of COI, EF1α and CAD nucleotides. Bootstrap support values are given on the nodes. Branch lengths are drawn to scale for each data set.
FIGURE 7 in The red-listed species Thamnurgus rossicus in East Europe is a synonym of the rare Central European species, T. petzi (Curculionidae: Scolytinae)
FIGURE 7. Host plants attacked by T. petzi. A, Aconitum napellus, with arrow pointing at entrance hole. Note the necrotic pattern along the stem, which reflects the length and direction of the egg tunnel. B, entrance hole at the base of leaf petiole in Delphinium cuneatum.
Figs. 2–9. Microlinus perobanus, male. 2 in First Record and a New Species of the Rare Xantholinini GenusMicrolinusCasey (Coleoptera: Staphylinidae: Staphylininae) in Brazil
Figs. 2–9. Microlinus perobanus, male. 2) Antenna; 3) Labrum, dorsal view; 4) Mandibles, dorsal view; 5) Maxilla, dorsal view; 6) Labium, ventral view; 7) Protibia and protarsus, external view; 8) Tergite VIII, dorsal view; 9) Sternite VIII, ventral view. Scale bars = 2) 0.5 mm; 3) 0.125 mm; 4–9) 0.25 mm.
Figs. 10–15. Microlinus perobanus. 10 in First Record and a New Species of the Rare Xantholinini GenusMicrolinusCasey (Coleoptera: Staphylinidae: Staphylininae) in Brazil
Figs. 10–15. Microlinus perobanus. 10) Male tergites IX and X, dorsal view; 11) Male sternite IX, ventral view; 12) Aedeagus, ventral view; 13) Female tergite VIII, dorsal view; 14) Female tergites IX and X, dorsal view, anterior margin of tergite X with dashed line; 15) Female sternite IX, ventral view. All scale bars = 0.25 mm, except 12) 0.5 mm.
FIGURE 2 in Spiranthes bightensis (Orchidaceae), a New and Rare Cryptic Hybrid Species Endemic to the U. S. Mid-Atlantic Coast
FIGURE 2. Morphospace visualization based on two foliar and four floral characters (Table 1): S. bightensis (n = 19, closed circles), S. cernua (n = 16, open circles), S. odorata (n = 10, triangles).
FIGURE 5 in Spiranthes bightensis (Orchidaceae), a New and Rare Cryptic Hybrid Species Endemic to the U. S. Mid-Atlantic Coast
FIGURE 5. Distribution map of S. bightensis, highlighting population loss over time. A. Collections made pre-1890's–present (the hypothesized original distribution of S. bightensis). B. 1900–present. C. 1950–present. D. 2000–present. Prepared by Elizabeth Gjieli, NYBG GIS Lab.
FIGURE 3 in Spiranthes bightensis (Orchidaceae), a New and Rare Cryptic Hybrid Species Endemic to the U. S. Mid-Atlantic Coast
FIGURE 3. Line drawing of S. bightensis. A. Habit and leaf detail. B. Inflorescence. C. Inflorescence detail. D. Floral bract and flower. E–M. Dissected flower. E. Dorsal sepal. F. Dorsal petal. G. Lateral sepal. H. Labellum, flattened. I. Labellum and column in natural position. J. Column, profile view. K. Column, ventral and dorsal view. L. Anther. M. Pollinia. Drawn from Austin s.n. barcode 01392822 (NY) and Pace 608 (NY) by Bobbi Angell.
FIGURE 1 in Spiranthes bightensis (Orchidaceae), a New and Rare Cryptic Hybrid Species Endemic to the U. S. Mid-Atlantic Coast
FIGURE 1. Phylogenetic networks from NeighborNet analysis of the S. cernua species complex plus S. odorata; the position of species is indicated by ovals. A. Combined nuclear dataset (nrITS, ACO, Xdh); inset focuses on the relationships between S. cernua s.s. and S. bightensis, denoting the position of individual samples. B. Combined chloroplast dataset (matK, ndhJ, trnL intron, trnS-fM, ycf1 3'); inset focuses on the relationships between S. cernua s.s. and S. bightensis, denoting the position of individual samples (all samples are S. cernua s.s. unless otherwise indicated).
Figure 3 in Ateuchus fedescobari - a new dung beetle (Coleoptera: Scarabaeinae) species from Colombia, and redescription of the rare A. punctatissimus (Génier, 2010) from Brazil
Figure 3. Ateuchus (Lobidion) fedescobari sp. nov. female paratype. (a) habitus; (b) ventral view; (c) head frontal view; (d) pronotal microsculpturation and posterior 'U'-shaped punctuation.
Figure 4 in Ateuchus fedescobari - a new dung beetle (Coleoptera: Scarabaeinae) species from Colombia, and redescription of the rare A. punctatissimus (Génier, 2010) from Brazil
Figure 4. Known distribution of Ateuchus (Lobidion) punctatissimus (Génier) (red triangle) and Ateuchus (Lobidion) fedescobari sp. nov. (pink circle).
Figure 1 in Ateuchus fedescobari - a new dung beetle (Coleoptera: Scarabaeinae) species from Colombia, and redescription of the rare A. punctatissimus (Génier, 2010) from Brazil
Figure 1. Ateuchus (Lobidion) punctatissimus male. (a) habitus; (b) ventral view; (c) head frontal view; (d) elytra and pseudoepipleura lateral view; (e) aedeagus lateral view; (f) aedeagus dorsal view; (g) internal sac of the aedeagus; (h) endophallus.
FIGURE 1 in Ludwigia irregularis (Onagraceae) a rare new species from southern Brazil, and typification of the morphologically similar L. myrtifolia
FIGURE 1. Field photographs of Ludwigia irregularis. A. Flower with five petals. B. Flower with four petals. C. Leaf blade (abaxial surface). D. Leaf blade (adaxial surface). E. Immature fruit, showing the bracteoles near the apex of pedicel. F. Habit.
FIGURE 3 in Ludwigia irregularis (Onagraceae) a rare new species from southern Brazil, and typification of the morphologically similar L. myrtifolia
FIGURE 3. Lectotype of Ludwigia myrtifolia (A.F.C.P. de Saint-Hilaire B1-1532 P barcode P01819487). Copyright: Muséum National d'Histoire Naturelle.
FIGURE 5 in Ditiola haasii (Basidiomycota, Dacrymycetaceae)-taxonomy and ecology of a rare species from Central Europe
FIGURE 5. Maximum likelihood schematic phylogenetic tree based on the nrLSU dataset of Shirouzu et al. (2020). Numbers at branches indicate bs/pp values (indicated in the main tree only when bs ≥ 50% and pp ≥ 0.75). D1–D8 notation of subclades in Dacrymycetaceae follows Zamora & Ekman (2020) for convenience. The subtree shown at the top left is a detail of the relevant part of the main tree (enclosed by a red dotted rectangle). The two newly generated sequences from the studied specimens in PRM herbarium are indicated in bold red. The previously published Ditiola haasii sequence AF291314 (Weiβ & Oberwinkler 2001) is based on a collection from the holotype locality (see Discussion, part Taxonomy).
FIGURE 6 in Ditiola haasii (Basidiomycota, Dacrymycetaceae)-taxonomy and ecology of a rare species from Central Europe
FIGURE 6. Boubínský prales virgin forest, Czech Republic. Typical habitat of D. haasii. Photo J. Holec.
FIGURE 4. Ditiola haasii, micromorphological characters. A in Ditiola haasii (Basidiomycota, Dacrymycetaceae)-taxonomy and ecology of a rare species from Central Europe
FIGURE 4. Ditiola haasii, micromorphological characters. A: Terminal cells of cortical hyphae. B: Three-septate mature basidiospores. C: Basidiospores with different degrees of septation and microconidia. D–F: Basidia in different degrees of development. A–B and D: PRM 944647; C, E–F: PRM 922888. Scale bars: 10 µm. Photos J.C. Zamora.
FIGURE 3 in Ditiola haasii (Basidiomycota, Dacrymycetaceae)-taxonomy and ecology of a rare species from Central Europe
FIGURE 3. Ditiola haasii, slightly aberrant basidiomata, Boubínský prales, PRM 922888. For details see Collections studied. Photo J. Holec.
FIGURE 1 in Ditiola haasii (Basidiomycota, Dacrymycetaceae)-taxonomy and ecology of a rare species from Central Europe
FIGURE 1. Ditiola haasii, Boubínský prales, PRM 944647. For details see Collections studied. Photo J. Holec.
Data from: The demographic history of micro-endemics: Have rare species always been rare?
<p>Extinction has increased as human activities impact ecosystems. Conservation assessments for the IUCN red list are a fundamental tool in aiding the prevention of further extinction, yet, relatively few species have been thoroughly assessed. To increase the efficiency of assessments, novel approaches are needed to highlight threatened species that are currently data deficient. Many Madagascan plant species currently have extremely narrow ranges, but this may not have always been the case. To assess this, we used high-throughput DNA sequencing for 2-5 individuals of each species - reflecting the paucity of samples available for rare species. We estimated effective population size (<em>N</em><sub><em>e</em></sub>) for each species and compared this to census population <em>(N</em><sub><em>c</em></sub>) sizes when known. In each case, <em>N</em><sub><em>e</em></sub> was an order of magnitude larger than <em>N</em><sub><em>c</em></sub> – a signature of rapid, recent population decline. We then estimated the demographic history of each species, tracking changes in <em>N</em><sub><em>e</em></sub> over time. Five out of ten species displayed significant population declines towards the present (68–90% decreases). Our results for palm trees indicate that it is possible to predict extinction risk, particularly in the most threatened species. We performed simulations to show that our approach has the power to detect population decline during the Anthropocene, but performs less well when less data is used. Similar declines to those in palms were observed in data deficient species or those assessed as of least concern. These analyses reveal that Madagascar's narrow endemics were not always rare, having experienced rapid decline in their recent history. Our approach offers the opportunity to target species in need of conservation assessment with little prior information, particularly in regions where human modification of the environment has been rapid.</p>
FIGURE 2 in Two rare species of Danielsseniinae (Copepoda: Harpacticoida: Pseudotachidiidae) from the Kara and East Siberian Seas, with description of their previously unknown sexes
FIGURE 2. Mucrosenia kendalli Gee & Huys, 1994, male: A, first two segments of antennule; B, third segment of antennule; C, fourth segment of antennule; D, fifth segment of antennule; E, sixth segment of antennule; F, P2; G, P5; H, P6.
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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.