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378 results for “widespread species”
Data from: Lecanora layana (Lecanoraceae), a new sorediate species widespread in temperate eastern North America
Lecanora layana is described as new to science based on collections from throughout temperate eastern North America. The species is sorediate and both morphologically and chemically similar to L. nothocaesiella, differing in the production of stictic acid in addition to atranorin and zeorin. As apothecia are unknown in L. layana, the hypothesized generic placement and relationship with L. nothocaesiella were confirmed with molecular phylogenetic analyses of mtSSU sequence data.
Data from: Environmental factors influence both abundance and genetic diversity in a widespread bird species
Genetic diversity is one of the key evolutionary variables that correlate with population size, being of critical importance for population viability and the persistence of species. Genetic diversity can also have important ecological consequences within populations, and in turn, ecological factors may drive patterns of genetic diversity. However, the relationship between the genetic diversity of a population and how this interacts with ecological processes has so far only been investigated in a few studies. Here, we investigate the link between ecological factors, local population size, and allelic diversity, using a field study of a common bird species, the house sparrow (Passer domesticus). We studied sparrows outside the breeding season in a confined small valley dominated by dispersed farms and small-scale agriculture in southern France. Population surveys at 36 locations revealed that sparrows were more abundant in locations with high food availability. We then captured and genotyped 891 house sparrows at 10 microsatellite loci from a subset of these locations (N = 12). Population genetic analyses revealed weak genetic structure, where each locality represented a distinct substructure within the study area. We found that food availability was the main factor among others tested to influence the genetic structure between locations. These results suggest that ecological factors can have strong impacts on both population size per se and intrapopulation genetic variation even at a small scale. On a more general level, our data indicate that a patchy environment and low dispersal rate can result in fine-scale patterns of genetic diversity. Given the importance of genetic diversity for population viability, combining ecological and genetic data can help to identify factors limiting population size and determine the conservation potential of populations.
FIGURE 2. PCA diagrams for the first two factors, F1 and F2 in Common but new: Bartramia rosamrosiae, a "new" widespread species of apple mosses (Bartramiales, Bryophytina) from the Mediterranean and western North America
FIGURE 2. PCA diagrams for the first two factors, F1 and F2, with the variance explained by each. Italicized numbers correspond to the characters in Table 1. A: Bartramia (Anacolia) laevisphaera; M: Bartramia rosamrosiae sp. nov.; S: Bartramia stricta.
FIGURE 5 in Common but new: Bartramia rosamrosiae, a "new" widespread species of apple mosses (Bartramiales, Bryophytina) from the Mediterranean and western North America
FIGURE 5. Comparison of: A. Bartramia laevisphaera, B. B. stricta, C. B. rosamrosiae sp. nov.. First row: Cortex cells (scale bar 20 µm). Second row: Central strand illustrating the proportional differences (scale bar 100 µm). Third row: Leaf shape (scale bar A3 = 2 mm; B3–C3 = 1 mm) & distal margin (scale bar 50 µm). Last row): Cross section at leaf base (scale bar A4/B4 = 100 µm; C4 = 50 µm).
FIGURE 1 in Common but new: Bartramia rosamrosiae, a "new" widespread species of apple mosses (Bartramiales, Bryophytina) from the Mediterranean and western North America
FIGURE 1. Maximum likelihood tree based on the combined trnS-F and ITS matrix. Likelihood bootstrap percentages are depicted above (bold) the branch followed by posterior probabilities. Support values from the analyses including indel coding are depicted below the branches: with MPBSsic formatted in italics and PPsic underlined.
FIGURE 6 in Common but new: Bartramia rosamrosiae, a "new" widespread species of apple mosses (Bartramiales, Bryophytina) from the Mediterranean and western North America
FIGURE 6. Distribution of the species of Bartramia sect. Strictidium: Cross = B. breutelii; Triangles = B. rosamrosiae sp. nov.; Stars = B. (Anacolia) laevisphaera; Squares = B. stricta.
FIGURE 4 in Common but new: Bartramia rosamrosiae, a "new" widespread species of apple mosses (Bartramiales, Bryophytina) from the Mediterranean and western North America
FIGURE 4. Comparison of: A. Bartramia laevisphaera. B. B. stricta. C. B. rosamrosiae sp. nov. First row: Sporophyte dry (scale bar 2 mm). Second row: Plant dry (scale bar 2 mm). Third row: Plant wet (scale bar 2 mm).
FIGURE 3 in Common but new: Bartramia rosamrosiae, a "new" widespread species of apple mosses (Bartramiales, Bryophytina) from the Mediterranean and western North America
FIGURE 3. Canonical analysis based on the two discriminant functions F1 and F2 of the discriminant analysis. Gray dots are the centroids of each group.
FIGURE 1. Field pictures. A. Climbing a in First record of the critically endangered Hydrangea steyermarkii Standl. (Hydrangeaceae) in Mexico, and description of a new widespread Hydrangea species of Mesoamerica
FIGURE 1. Field pictures. A. Climbing a Hydrangea host tree with specific equipment (Tapalapa, Chiapas, Mexico). B. Branch of Hydrangea albostellata with four inflorescences, all inflorescence bracts already shed in lower right one where the flower buds are visible, lower left inflorescence partially opened, apical inflorescences still covered by all inflorescence bracts (M.S. Samain & E. Martínez S. 2012-090).
FIGURE 4. Hydrangea albostellata. A in First record of the critically endangered Hydrangea steyermarkii Standl. (Hydrangeaceae) in Mexico, and description of a new widespread Hydrangea species of Mesoamerica
FIGURE 4. Hydrangea albostellata. A. Habitus of branch with inflorescences in different developmental stages (inflorescence buds, inflorescence with flower buds and infructescence). B. Enlarged marginal flower with two pistils with fertile stigmas. C. Functionally male flower with 8 fertile stamens and 2 reduced pistils. D. Maturing capsule, fertile stigmas still visible, seeds are released through the opening between the 2 pistils. E. Detail of abaxial leaf surface with stellate indument. Drawn by Ramiro Cruz Durán from the holotype M.S. Samain et al. 2012-023 (MEXU; A, B), and from the specimens M.S. Samain et al. 2012-021 (MEXU; A, D, E) and M.S. Samain & E. Martínez S. 2012-088 (MEXU; C).
FIGURE 3 in First record of the critically endangered Hydrangea steyermarkii Standl. (Hydrangeaceae) in Mexico, and description of a new widespread Hydrangea species of Mesoamerica
FIGURE 3. SEM pictures of flowers of Hydrangea albostellata (A–D; A, C, M.S. Samain et al. 2012-023. B, D–E: M.S. Samain & E. Martínez S. 2012-088) and Hydrangea steyermarkii (E–F, M.S. Samain et al. 2012-078). A. Central parts of marginal female flower, with two large pistils and 3 small stamens visible. B. Flower bud of male flower; note the campanulate hypanthium and the valvate petals. C. Mature fruit opened between the pistils to release the seeds. D. Male flower; note the extreme difference in size between the long stamens and the diminute pistils. E. Lateral view of male flower. F. Apical view of male flower.
FIGURE 2. Field pictures. A–B in First record of the critically endangered Hydrangea steyermarkii Standl. (Hydrangeaceae) in Mexico, and description of a new widespread Hydrangea species of Mesoamerica
FIGURE 2. Field pictures. A–B, Hydrangea albostellata, C–D, Hydrangea steyermarkii (M.S. Samain et al. 2012-010). A. Branch with one mature green inflorescence with old male flowers and inflorescence axes with the basal lignified parts of inflorescences of previous years (M.S. Samain et al. 2012-005). B. Abaxial leaf side with dense pubescence consisting of whitish stellate hairs, note the typical spoon-shape and broadly revolute margin (M.S. Samain & E. Martínez S. 2012-090). C. Young branch, many-ribbed, with typical brownish-reddish cortex which contracts and forms corchy patches. D. Abaxial side of young leaf with whitish stellate indument, the leaf surface typically red-brown, the margin crenate with the marked bright green glandular teeth.
FIGURE 5. Hydrangea steyermarkii. A in First record of the critically endangered Hydrangea steyermarkii Standl. (Hydrangeaceae) in Mexico, and description of a new widespread Hydrangea species of Mesoamerica
FIGURE 5. Hydrangea steyermarkii. A. Habitus of branch with inflorescences. B. Functionally male flower with 8 fertile stamens and 2 reduced pistils. C. Maturing capsule, fertile stigmas still visible, seeds are released through the opening between the 2 pistils. D. Inflorescence branch with inflorescence bud, inflorescence bracts and leaf pair visible. E. Detail of inflorescence branch with stellate indument. Drawn by Ramiro Cruz Durán from the specimen M.S. Samain et al. 2012-078 (MEXU; A, B, D, E), and from the holotype J.A. Steyermark 36044 (F; C).
FIGURE 1 in Molecular phylogeography of a widespread Malagasy leaf chameleon species, Brookesia superciliaris
FIGURE 1. Phylogenetic relationships of Brookesia superciliaris inferred from the Bayesian and maximum Likelihood analyses of 12S rRNA gene sequence data. Numbers above the branches represent posterior probability values. Numbers below the branches represent maximum likelihood bootstrap values. Sequences of Brookesia therezieni were used as outgroup. Inset picture shows a specimen of B. superciliaris. Map shows sampling localities.
FIGURE 9 in Discovery of the second European Amalopis species: an integrative survey of the widespread Pedicia (Amalopis) occulta (Meigen, 1830) (Insecta, Diptera, Pediciidae)
FIGURE 9. Female terminalia of P. f us c a (A) and P. oculta, lateral view (B) and cerci with infra-anal plate of P. f u s c a (C) and P. oculta (D) in ventral view.
FIGURE 12 in Discovery of the second European Amalopis species: an integrative survey of the widespread Pedicia (Amalopis) occulta (Meigen, 1830) (Insecta, Diptera, Pediciidae)
FIGURE 12. Gonopodium of P. ericarum, redrawed from Alexander, 1966 (A) and specimen from Bolu, Turkey (B), dorsal view.
FIGURE 1 in Discovery of the second European Amalopis species: an integrative survey of the widespread Pedicia (Amalopis) occulta (Meigen, 1830) (Insecta, Diptera, Pediciidae)
FIGURE 1. Known collection sites of P. f u s c a n. sp. and P. occulta. Shaded area—mountainous regions of Europe, black dots —collection sites for P. f u sc a n. sp., white dots—collection sites for P. occulta.
FIGURE 11 in Discovery of the second European Amalopis species: an integrative survey of the widespread Pedicia (Amalopis) occulta (Meigen, 1830) (Insecta, Diptera, Pediciidae)
FIGURE 11. Wing and genitalia series of P. f u s c a n. sp. and P. occulta from dorsal, lateral and interior perspectives. Mountains of origin are marked on Fig. 1.
FIGURE 10 in Discovery of the second European Amalopis species: an integrative survey of the widespread Pedicia (Amalopis) occulta (Meigen, 1830) (Insecta, Diptera, Pediciidae)
FIGURE 10. Phylogenetic relationship of P. f us c a n. sp. and P. occulta, inferred by neighbor-joining analysis, with P. straminea as outgroup. Black circles bootstrap values> 95 after 1000 iterations. Scale bar nucleotide substitutions per site.
FIGURE 8 in Discovery of the second European Amalopis species: an integrative survey of the widespread Pedicia (Amalopis) occulta (Meigen, 1830) (Insecta, Diptera, Pediciidae)
FIGURE 8. Gonopodium of P. f u s c a, lateral (A), dorsal (B) and interior (C) view, P. occulta from lateral (D), dorsal (E) and interior (F) view. Scale bar represents 0.1 mm.
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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.