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7,159 results for “Species complex”
Topography drives microgeographic adaptations of closely-related species in two tropical tree species complexes
<p>Combining LiDAR-derived topography, tree inventories, and single nucleotide polymorphisms (SNPs) from gene capture experiments, we explored genome-wide population genetic structure, covariation of environmental variables, and genotype-environment association to assess microgeographic adaptations to topography within the species complexes <em>Symphonia</em> (Clusiaceae), and <em>Eschweilera</em> (Lecythidaceae) with three species per complex and 385 and 257 individuals genotyped, respectively.</p>
Molecular and Taxonomic Reevaluation of the Digitaria filiformis Complex (Poaceae) including a Globally Extinct, Single Site Endemic from New Hampshire, USA, and a New Species from Mexico
<p>We examine the <em>Digitaria filiformis </em>complex, to determine the proper taxonomic rank and rarity of each taxon. The taxonomy of the <em>D. filiformis </em>complex is highly debated and includes two widespread species, <em>D. filiformis </em>and <em>D. villosa</em>; a possibly extinct species endemic to a single-site in New Hampshire, <em>D. laeviglumis</em>; and a rare species of southern Florida and the West Indies, <em>D.</em><em> dolichophylla. </em>We conducted morphologic comparisons and molecular analysis of the four members of the <em>D. filiformis</em> complex, together with specimens from Mexico and Venezuela purportedly identified as <em>D. laeviglumis</em> (morphology only). Based on results of phylogenetic analyses of plastid and nuclear ITS sequences and morphologic comparisons, we recognize five species in the <em>D. filiformis </em>complex, including a newly described Mexican endemic <em>D. glabrifloris. </em>After field investigation we have moved the global rank of <em>D. laeviglumis </em>from globally historical (GH) to extinct (GX), as there is virtually no likelihood of rediscovery. <em>Digitaria</em><em> dolichophylla </em>is much rarer than previously recognized, moving from secure (T5) to imperiled with extinction (G2).</p>
Dataset: Baseline for the Northeast Atlantic (58 – 70° N) intertidal Mytilus species complex (Mytilus spp.) 2021-2022
<p><strong><span>Aim: </span></strong><span>Mussels (<em>Mytilus spp</em>.) are abundant in the North Atlantic, sessile, and sensitive to environmental change, and suitable as sentinels of environment and climate change of costal ecosystems. We aimed to determine the baseline for the Northeast Atlantic (58 – 70° N)<em> Mytilus</em> species complex, and to show the present distribution to surveys conducted 60 years ago. </span></p> <p><strong><span>Location:</span></strong><span> Northeast Atlantic </span></p> <p><strong><span>Methodology: </span></strong><span>Baseline was obtained by investigating a total of 509 stations in the intertidal zone, in four regions comprising the environmental gradient from head of fjord to coast, and distributed over the latitudinal gradient from 58 – 70° N. </span></p> <p><strong><span>Results:</span></strong><span> The baseline shows a range in continuous abundance of mussels from 12 to 36 %, patchy abundance from 26 to 57 % and no or very limited mussel abundance from 26 to 46 % between the four regions. The presence of mussels in the southeast and west region was visualized to previous surveys conducted 60 years ago. The data points to similar past and present presence of mussels in both regions, yet past major mussel fields in the inner section of region southeast was not detected in this study.</span></p> <p><strong><span>Main conclusions:</span></strong></p> <p><span>The baseline of <em>Mytilus spp.</em> in the Northeast Atlantic (58 – 70° N) is now available for future reference. The baseline, plotted to surveys conducted 60 years ago, points to awareness of the population situated in the southeast section of the investigated region. Continued monitoring and modelling are needed to clarify drivers of temporal and spatial variation in the mussel populations along the Northeastern Atlantic coast. </span></p>
Supporting data and codes for: A new biological species in the Mercurialis annua polyploid complex: functional divergence in inflorescence morphology, hybrid sterility and possible introgression
<p>This GitHub repository includes R codes and datasets for the paper: A new biological species in the Mercurialis annua polyploid complex: functional divergence in inflorescence morphology, hybrid sterility and possible introgression</p>
FIG. 15. — A, B in The high complexity of Micronetinae Hull, 1920 (Araneae, Linyphiidae) evidenced through ten new cave-dweller species from the Morocco
FIG. 15. — A, B, epigyne of Palliduphantes banderolatus Barrientos n. sp. in lateral (A) and ventral (B) views; C, male copulatory bulb of P. banderolatus Barrientos n. sp. retrolateral view; D-F, epigyne of Palliduphantes megascapus Barrientos n. sp. in lateral (D) and ventral (E and F) views.
FIG. 14. — A, B in The high complexity of Micronetinae Hull, 1920 (Araneae, Linyphiidae) evidenced through ten new cave-dweller species from the Morocco
FIG. 14. — A, B, Epigyne of Lepthyphantes imazigheni Barrientos n. sp. in lateral (A) and ventral (B) views; C, epigyne of Lepthyphantes leknizii Barrientos n. sp. in dorsal view; D, E, epigyne of Lepthyphantes lamellatus Barrientos n. sp. in lateral (D) and ventral (E) views; F, male copulatory bulb of Lepthyphantes lamellatus Barrientos n. sp. in retrolateral view; G, H, epigyne of Lepthyphantes sasi Barrientos n. sp. in lateral (G) and ventral (H) views; I, male copulatory bulb of Lepthyphantes sasi n. sp. in retrolateral view.
FIG. 4. — Lepthyphantes ensiferus Barrientos n in The high complexity of Micronetinae Hull, 1920 (Araneae, Linyphiidae) evidenced through ten new cave-dweller species from the Morocco
FIG. 4. — Lepthyphantes ensiferus Barrientos n. sp., genital organs: A, B, male copulatory bulb, retrolateral view (A), ventral view (B); C, schema of the embolic division; D, E, epigyne, ventral view (D), lateral view (E). Abbreviations: see Material and methods. Scale bar: 0.5 mm.
FIG. 13. — A, B in The high complexity of Micronetinae Hull, 1920 (Araneae, Linyphiidae) evidenced through ten new cave-dweller species from the Morocco
FIG. 13. — A, B, Epigyne of Lepthyphantes almoravidus Barrientos n. sp. in ventral (A) and lateral (B) views; C, D, epigyne of Lepthyphantes biospeleologorum Barrientos n. sp. in dorsal (C) and lateral (D) views; E, F, epigyne of Lepthyphantes fadriquei Barrientos n. sp. in lateral (E) and ventral (F) views; G, male copulatory bulb of L. fadriquei Barrientos n. sp. retrolateral views; H, I, epigyne of Lepthyphantes ensiferus Barrientos n. sp. in lateral (H) and dorsal (I) views; J, male copulatory bulb of Lepthyphantes ensiferus Barrientos n. sp. in retrolateral view.
FIG. 7. — Lepthyphantes lamellatus Barrientos n in The high complexity of Micronetinae Hull, 1920 (Araneae, Linyphiidae) evidenced through ten new cave-dweller species from the Morocco
FIG. 7. — Lepthyphantes lamellatus Barrientos n. sp., genital organs: A, B, male copulatory bulb, retrolateral view (A), ventral view (B); C, diagram of the embolic division; D, E, epigyne, ventral view (D), lateral view (E). Abbreviations: see Material and methods. Scale bar: 0.5 mm.
FIG. 12. — Palliduphantes megascapus Barrientos n in The high complexity of Micronetinae Hull, 1920 (Araneae, Linyphiidae) evidenced through ten new cave-dweller species from the Morocco
FIG. 12. — Palliduphantes megascapus Barrientos n. sp., genital organs; A, B, epigyne, retrolateral view (A); ventral view (B). Abbreviations: see Material and methods. Scale bar: 0.5 mm.
FIG. 5. — Lepthyphantes fadriquei Barrientos n in The high complexity of Micronetinae Hull, 1920 (Araneae, Linyphiidae) evidenced through ten new cave-dweller species from the Morocco
FIG. 5. — Lepthyphantes fadriquei Barrientos n. sp., genital organs; A, B, male copulatory bulb, retrolateral view (A), ventral view (B); C, schema of the embolic division; D, E, epigyne, ventral view (D); idem, lateral view (E). Abbreviations: see Material and methods. Scale bar: 0.5 mm.
FIG. 6. — Lepthyphantes imazigheni Barrientos n in The high complexity of Micronetinae Hull, 1920 (Araneae, Linyphiidae) evidenced through ten new cave-dweller species from the Morocco
FIG. 6. — Lepthyphantes imazigheni Barrientos n. sp., carapace and genital organs: A, carapace; B, C, epigyne, ventral view (B), lateral view (C). Abbreviations: see Material and methods. Scale bars: 0.5 mm.
FIG. 2. — Lepthyphantes almoravidus Barrientos n in The high complexity of Micronetinae Hull, 1920 (Araneae, Linyphiidae) evidenced through ten new cave-dweller species from the Morocco
FIG. 2. — Lepthyphantes almoravidus Barrientos n. sp., genital organs: epigyne, A, ventral view; B, lateral view. Abbreviations: see Material and methods. Scale bar: 0.5 mm.
FIG. 3. — Lepthyphantes biospeleologorum Barrientos n in The high complexity of Micronetinae Hull, 1920 (Araneae, Linyphiidae) evidenced through ten new cave-dweller species from the Morocco
FIG. 3. — Lepthyphantes biospeleologorum Barrientos n. sp., genital organs: A-C, epigyne: ventral view (A), posterior view (B), lateral view (C). Abbreviations: see Material and methods. Scale bar: 0.5 mm.
FIG. 9. — Lepthyphantes sasi Barrientos n in The high complexity of Micronetinae Hull, 1920 (Araneae, Linyphiidae) evidenced through ten new cave-dweller species from the Morocco
FIG. 9. — Lepthyphantes sasi Barrientos n. sp., genital organs: A, B, male copulatory bulb, retrolateral view (A), ventral view (B); C, schema of the embolic division; D, E, epigyne, ventral view (D), lateral view (E). Abbreviations: see Material and methods. Scale bar: 0.5 mm.
Fig. 1 in Resolving the Ophioderma longicauda (Echinodermata: Ophiuroidea) cryptic species complex: five sisters, three of them new
Fig. 1. Phylogenetic relationships and distribution of species of Ophioderma Müller & Troschel, 1840 in the Northeast and Tropical Atlantic Ocean and the Mediterranean Sea. A. Simplified phylogenetic relationships among species of Ophioderma described in this study, modified from Weber et al. (2019). Summary of reproductive strategy: S = broadcast spawner; B = brooder. Correspondence between species names, nuclear genetic clusters and COI mitochondrial lineages is summarized from Boissin et al. (2011) and Weber et al. (2019). C6 is tentatively assigned to O. zibrowii sp. nov. because it occurs far from the type locality and brooding species are expected to have low dispersal rates, leading to low gene flow between populations. B. Distribution of species of Ophioderma in the Northeast and Tropical Atlantic Ocean. C. Distribution of species of Ophioderma in the Mediterranean Sea.
Figs 26–32 in Review of the Anthelephila maindroni complex, and description of four new species from the Indian subcontinent (Coleoptera: Anthicidae)
Figs 26–32. Anthelephila strigosa (Heberdey, 1934), male, Hambantota (ZKDC): 26 – front leg; 27 – sternum VII; 28 – median process of sternum VII, laterally; 29 – tergum VII; 30 – prong of sternite VIII; 31 – tergite VIII; 32 – apical portion of tegmen. Scale (0.5 mm): A – Fig. 19; B – Figs 15, 16; C – Figs 14, 17. (0.2 mm): C – Figs 18, 20.
Figs 33–38. 33–36 in Review of the Anthelephila maindroni complex, and description of four new species from the Indian subcontinent (Coleoptera: Anthicidae)
Figs 33–38. 33–36 – habitus: 33 – Anthelephila feminea sp. nov. (holotype); 34 – A. maindroni (Pic, 1903), Pondicherry (NHMW); 35 – A. sahyadrica sp. nov. (holotype); 36 – A. semistrigosa sp. nov. (holotype). 37–38 – antenna of females: 37 – A. feminea sp. nov. (holotype); 38 – A. maindroni, Hambantota (ZKDC). Scale (0.5 mm): Figs 37, 38.
Figs 20–25 in Review of the Anthelephila maindroni complex, and description of four new species from the Indian subcontinent (Coleoptera: Anthicidae)
Figs 20–25. Anthelephila semistrigosa sp. nov., male, holotype: 20 – front leg; 21 – sternum VII; 22 – tergum VII; 23 – prong of sternite VIII; 24 – tergite VIII; 25 – apical portion of tegmen. Scale (0.5 mm): A – Fig. 12; B – Figs 20, 22; C – Figs 21. (0.2 mm): B – Figs 23, 25.
Figure 16. Anthocharis thoosa thoosa and A in A review of three species-level taxa of the Anthocharis sara complex (Lepidoptera: Pieridae: Pierinae: Anthocharidini)
Figure 16. Anthocharis thoosa thoosa and A. julia sulfuris contact zone in Huntington Canyon, Emery County, Utah.
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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.