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955 results for “Subtropical”
Fig. 1 in Composition and Dynamics of Hexapod Communities on Yushan Bamboo () in the Subtropical Montane Areas of Taiwan.
Fig. 1. Percentage distribution of individuals belonging to hexapod families of the dominant orders of Hemiptera, Collembola, and Hymenoptera surveyed on Yushan bamboo during 2009–2012. Family names are listed beneath the axis. Families were presented in colors.
A Hard Day's Night: Diel shifts in microbial eukaryotic activity in the North Pacific Subtropical Gyre
<p><strong>A Hard Day’s Night: Diel shifts in microbial eukaryotic activity in the North Pacific Subtropical Gyre </strong>(<em>submitted</em>)</p> <p><strong>Authors: </strong>Sarah K. Hu<sup>1</sup>*, Paige E. Connell<sup>1</sup>, Lisa Y. Mesrop<sup>1</sup>, & David A. Caron<sup>1</sup></p> <p><sup>1</sup>University of Southern California, Biological Sciences, Los Angeles, CA, USA</p> <p> </p> <p><strong>Abstract</strong></p> <p>Molecular analysis revealed diel rhythmicity in the metabolic activity of single-celled microbial eukaryotes (protists) at station ALOHA in the North Pacific Subtropical Gyre. Diel trends among different protistan taxonomic groups reflected distinct nutritional capabilities and temporal niche partitioning. Changes in relative metabolic activities among phototrophs corresponded to the light cycle, generally peaking in mid- to late-afternoon. Metabolic activities of protistan taxa with phagotrophic ability were higher at night, relative to daytime, potentially in response to increased availability of picocyanobacterial prey. Tightly correlated Operational Taxonomic Units throughout the diel cycle implicated the existence of parasitic and mutualistic relationships within the microbial eukaryotic community, underscoring the need to define and include these symbiotic interactions in marine food web descriptions. This study provided a new high-resolution view into the ecologically important interactions among primary producers and consumers that mediate the transfer of carbon to higher trophic levels. Characterizations of the temporal dynamics of protistan activities contribute knowledge for predicting how these microorganisms respond to environmental forcing factors.</p> <p> </p> <p><a href="https://github.com/shu251/18Sdiversity_diel">See github for additional information on data analysis.</a></p>
Figure 2 in Carbon primary sources and estuarine habitat use by two congeneric ariid catfishes in a subtropical coastal lagoon
Figure 2. Carbon isotope ratios (d13C) and total length (TL, mm) of individuals of Genidens genidens (closed circles) and Genidens barbus (open circles) collected in the interface between the estuarine and freshwater zones of Patos Lagoon in present study. DISCUSSION According to the model of the life cycle suggested by ARAúJO (1988), G. barbus move between freshwater to the estuary during their first year of life. After reaching sexual maturity, adults migrate to the ocean, returning to freshwater to spawn. Our work with stable isotopes corroborates the general movement pattern proposed in this model by providing evidence that the primary producers at the estuary are an important source of carbon for juveniles of G. barbus during the initial phase of their development. There is no current model describing the life cycle of G. genidens at the Patos Lagoon. ARAúJO (1988) mentioned that this species remains in the upper limit of the estuarine zone or in the limnetic portion of the lagoon and that its juveniles are occasionally found in the estuary. Based on fish sampling restricted to the mixohaline zone of the Patos Lagoon, some authors classified this species as estuarine resident (CHAO et al. 1985, ARAúJO 1988). However, VIEIRA et al. (2010) demonstrated that G. genidens occurs from the estuary to the uppermost northern portion of the lagoon, which is located ~180 km from the lagoon's connection with the sea, and can remain year round at freshwater. Our work provides new evidence that this catfish species derives energy from the estuarine and freshwater zones of
Figure 1 in Effects of forest conversion on tce assemblages' structure of aquatic insects in subtropical regions
Figure 1. Location of tce micro-basin and sampled streams in forested area (F1, F2, and F3) and converted area (C1, C2, and C3) at Parque Estadual do Turvo and adjacent areas, in soutcern Brazil.
Figure 3 in Effects of forest conversion on tce assemblages' structure of aquatic insects in subtropical regions
Figure 3. Ordination diagram of NMDS of Epcemeroptera, Plecoptera, and Triccoptera assemblages at streams in forested area (F) and converted area (C). Numbers 1-3 refer to tce stream; R refers to rocky bottom substrate, and L refers to leaf litter substrate.
Fig. 1 in Heterotrophic Flagellates from Freshwater and Soil Habitats in Subtropical China (Wuhan Area, Hubei Province)
Fig. 1. Location of studied sites. 1 – Yangtze River, 2 – Moshan hill, 3 – Donghu Lake, 4 – Luojiashan hill.
Fig. 4. 1, 2 in Heterotrophic Flagellates from Freshwater and Soil Habitats in Subtropical China (Wuhan Area, Hubei Province)
Fig. 4. 1, 2 – Petalomonas minuta (small cell with single anterior flagellum and longitudinal groove); 3, 4 – P. pusilla (small cell with single anterior flagellum and truncate anterior end); 5–7 – Phalansterium sp. (colonies of unikont spherical cell surrounded by mucilage); 8–12 – Phyllomitus apiculatus (cells with visible flagellar pocket, two heterodynamic flagella, anterior flagellum curves back over the rostrum (8), big food vacuoles), (12) whole mount (TEM); 13, 14 – Protaspa simplex (gliding spherical cells, cell body wags in unison with the flagellar beat); 15, 16 – Pteridomonas pulex (single apical flagellum emerging from a slight depression at the top of the cell, flagellum is surrounded by 12 stiffarms, body attaches to substrate by thin stalk); 17–19 – Rhynchomonas nasuta (oval cell bears undulating proboscis and long posterior flagellum), (19) whole mount (TEM); 20, 21 – Salpingoeca amphoridium (cell with narrow neck inside amphora-like lorica); 22 – S. gracilis (cylindrical cell inside cyathiform lorica); 23–25 – S. minor (spherical cell with narrow neck inside round lorica); 26–29 – Spongomonas uvella, (spherical cells with two isokont long acronematic flagella form colonies surrounded minute granules) (29) whole mount (TEM). Scale bars: 4 µm (3, 4), 5 µm (18, 23–25, 28, 29), 6 µm (1, 2), 8 µm (5, 7, 17, 19), 10 µm (6, 8–10, 12–14, 20, 27), 15 µm (11, 15, 21, 22, 26), 25 µm (16).
Fig. 2 in Rare Spiders Of The Genus Cyclocosmia (Arachnida: Araneae: Ctenizidae) From Tropical And Subtropical China
Fig. 2. Cyclocosmia ricketti (Pocock, 1901): A, habitus of female; B, ocular area, dorsal view; C, abdomen, caudal view; D, same, lateral view; E, spermathecae, dorsal view. Scale bars: A, B, E = 1.0 mm, C-D = 2.0 mm.
Fig. 6. Cyclocosmia latusicosta, new species. A in Rare Spiders Of The Genus Cyclocosmia (Arachnida: Araneae: Ctenizidae) From Tropical And Subtropical China
Fig. 6. Cyclocosmia latusicosta, new species. A, ocular area, dorsal view, holotype; B, abdomen, caudal view, holotype; C, same, lateral view, holotype; D, posterior portion of opisthosoma, ventral view, holotype; E, left chelicera, prolateral view, holotype; F-J, spermathecae, dorsal view: F, holotype; G-J, paratypes. Scale bars: A, F-J = 1.0 mm, B-E = 2.0 mm.
Fig. 5 in Rare Spiders Of The Genus Cyclocosmia (Arachnida: Araneae: Ctenizidae) From Tropical And Subtropical China
Fig. 5. Cyclocosmia latusicosta, new species, paratype (SEM micrographs). A, detail of ribs; B, detail of inner side of rib angles showing two kinds of bristles; C, detail of long and smooth bristles; D, detail of bottlebrush-like bristles.
Fig. 1 in Does the landscape surrounding streams affect the occurrence of freshwater crabs? A case study of the genus Aegla (Crustacea: Decapoda: Anomura) in subtropical basins
Fig. 1. Map of the study area in state of Rio Grande do Sul, southern Brazil showing land uses and the location of sampling sites (1 through 21) in the northern, central and southern regions.
Fig. 3 in Does the landscape surrounding streams affect the occurrence of freshwater crabs? A case study of the genus Aegla (Crustacea: Decapoda: Anomura) in subtropical basins
Fig. 3. RDA between landscape uses, stream morphology, and abiotic factors that influence the distribution of Aegla in the study area, state of Rio Grande do Sul, southern Brazil.
Fig. 2 in Does the landscape surrounding streams affect the occurrence of freshwater crabs? A case study of the genus Aegla (Crustacea: Decapoda: Anomura) in subtropical basins
Fig. 2. Boxplot of limnological differences (total nitrogen), stream morphometry hydro-geomorphological differences (Dm) and land use differences (agriculture/exposed soil and pasture) in the three regions (northern, central, and southern) of the study area, state of Rio Grande do Sul, southern Brazil. Different letters above boxes represent significant differences among groups.
FIGURE 3 in A cascade of dams affects fish spatial distributions and functional groups of local assemblages in a subtropical river
FIGURE 3 | Analysis of multivariate homogeneity of group dispersions (PERMIDISP) by betadisper boxplot, using the Bray-Curtis index, considering the abundance (CPUEN) of movement/reproductive/size (A) and trophic categories (B), and biomass (CPUEB) of movement/ reproductive/size categories (C) and trophic categories (D). The data was based on sampling sites, and presented by environment groups: [DU, DD] = Sampling points away from the dams; [R1, R2, R3] = sampling points located in the reservoirs; [DR1, DR2, DR3] = locations downstream from dams. Greater distance to spatial median indicates larger dispersion and therefore a more diverse/heterogeneous environment. Box lower and upper endpoints represent the 25th and 75th quartiles, respectively. The horizontal bar and plus symbol inside each box represent median, excluding outliers, which are presented by open circles. See Tabs. 4 and 5 for P values from environments comparisons.
FIGURE 2 in A cascade of dams affects fish spatial distributions and functional groups of local assemblages in a subtropical river
FIGURE 2 | Ordination plots produced by the non-metric multidimensional scaling analysis (NMDS) using the Bray-Curtis index, considering the abundance (CPUEN) of movement/reproductive/size (A) and trophic categories (B), and biomass (CPUEB) of movement/ reproductive/size categories (C) and trophic categories (D), among survey locations. [DU (red triangle), DD (yellow triangle)] = Sampling points away from the dams; [R1 (red circle), R2 (green circle), R3 (orange circle)] = sampling points located in the reservoirs; [DR1 (green square), DR2 (orange square), DR3 (red square)] = locations downstream from dams. Labels are for Detritivores, Invertivores, Carnivores, Omnivores, and Piscivores; S/SM = sedentary/short migration, NPC = no parental care, PC = parental care, IF = internal fertilization, and LM = long migration; and Small, Medium, and Large body sizes.
FIGURE 1 in A cascade of dams affects fish spatial distributions and functional groups of local assemblages in a subtropical river
FIGURE 1 | Sampling locations in the Upper Uruguai River, Brazil. The symbols indicate survey sites: circles represent sites within the reservoirs (R1 = site 3 to 5; R2 = site 7 to 9; R3 = site 11 to 14); squares indicate sites located just below dams [Downstream R1 (DR1) = 6, Downstream R2 (DR2) = 10, Downstream R3 (DR3) = 15], and triangles indicate sites that are most distant from dams [Distant Upstream (DU) = 1 and 2; Distant Downstream (DD) = 16 and 17].
Experimental rainfall dataset in subtropical Chinese forests
<p>Experimantal dataset consists of rainfall, temperature, throughfall and stemflow in 2001-2022. There are three forest types, including broadleaf forest, mixed forest and pine forest.</p>
Fig. 2 in Population dynamics of pests and natural enemies on sugar cane grown in a subtropical region of Brazil
Fig. 2. Population dynamics of the natural enemies Harmonia axyridis, Doru lineare, and Billaea claripalpis in sugar cane from Feb 2013 to Jan 2015 in the municipality of Salto do Jacuí, Rio Grande do Sul State, Brazil. Arrows indicate the harvesting and budding periods.
Fig. 1 in Population dynamics of pests and natural enemies on sugar cane grown in a subtropical region of Brazil
Fig. 1. Population dynamics of sugar cane pests from Feb 2013 to Jan 2015 in the municipality of Salto do Jacuí, Rio Grande do Sul State, Brazil: (A) Means of internodes, attacked internodes, and number of Diatraea saccharalis larvae per culm; (B) Insects of Mahanarva fimbriolata per square m, and infested culms (%) by Saccharicoccus sacchari, and Melanaphis sacchari. Arrows indicate the harvesting and budding periods.
Linked collectors and determiners for: Pseudogramma xanthum, a new replacement name for a serranid fish from the subtropical South Pacific Ocean with description of the species..
Natural history specimen data linked to collectors and determiners held within, "Pseudogramma xanthum, a new replacement name for a serranid fish from the subtropical South Pacific Ocean with description of the species.". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/b08ec2ae-2a9b-45a0-9fbb-22f9c56205d1">https://bionomia.net/dataset/b08ec2ae-2a9b-45a0-9fbb-22f9c56205d1</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/b08ec2ae-2a9b-45a0-9fbb-22f9c56205d1">https://gbif.org/dataset/b08ec2ae-2a9b-45a0-9fbb-22f9c56205d1</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.