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3,583 results for “elevations”
Figure 2 in Why may the same species have different elevational ranges at different sites in New Guinea?
Figure 2. Google Earth view of the environment of Diamond's 1979 Foja coastal transect. Visible are the narrow north-flowing stream on which Diamond's camp was sited; the western and eastern ridges flanking the valley in which the stream lies; at the bottom of the field of view, the ridges south of Diamond's camp, rising towards the Foja summits; the near-vertical east / west barrier ridge constituting the northern flank of the basin, and pierced by the stream; and, at the top, New Guinea's lowland coastal plain beyond the east / west ridge, and in which the stream flows in a braided gravel bed. A line traces the crest of the western, eastern and northern ridges, with numbers denoting elevation readings in metres. Diamond's camp in the basin, labelled 610 m, was at 02°45'S, 138°63'E.
Figure 3 in Why may the same species have different elevational ranges at different sites in New Guinea?
Figure 3. Google Earth close-up view, from the south, of the east / west ridge closing to the north the basin viewed in Fig. 2. The ridge has near-vertical southern and northern faces, and is pierced by the basin's stream via a cleft only c.20 m wide.
Fig. 70. Lower elevational vegetations. A in Taxonomy of the ant genera Leptothorax Mayr, 1855 and Temnothorax Mayr, 1861 (Hymenoptera: Formicidae) of China with descriptions of twenty-eight new species and a key to the known Chinese species
Fig. 70. Lower elevational vegetations. A. Semi-moist evergreen broadleaf forest (2000 m, Tengchong, Yunnan). B. Dry deciduous broadleaf forest (1840 m, Luquan, Yunnan). C. Keteleeria evelyniana Mast. forest (1820 m, Anning, Yunnan). D. Monsoon evergreen broadleaf forest (1500 m, Gengma, Yunnan). E. Quercus variabilis Blume forest (1350 m, Guangnan, Yunnan). F. Dry evergreen broadleaf forest (518 m, Yuanyang, Yunnan). Photos by Zheng-Hui Xu.
Fig. 69. Middle elevational vegetations. A in Taxonomy of the ant genera Leptothorax Mayr, 1855 and Temnothorax Mayr, 1861 (Hymenoptera: Formicidae) of China with descriptions of twenty-eight new species and a key to the known Chinese species
Fig. 69. Middle elevational vegetations. A. Pinus densata Masters forest (2750 m, Bomi, Tibet). B. Pinus armandi Franch. forest (2557 m, Qiaojia, Yunnan). C. Subalpine moist evergreen broadleaf forest (2500 m, Lushui, Yunnan). D. Conifer-broadleaf mixed forest (2500 m, Huaping, Yunnan). E. Moss evergreen broadleaf forest (2450 m. Cangyuan, Yunnan). F. Warm conifer forest (2230 m, Huili, Sichuan). G. Dry-warm valley shrubland (2230 m, Muli, Sichuan). H. Semi-evergreen broadleaf forest (2050 m, Danba, Sichuan). I. Pinus yunnanensis forest (2030 m, Huaping, Yunnan). Photos by Zheng-Hui Xu.
Fig. 68. Higher elevational vegetations. A in Taxonomy of the ant genera Leptothorax Mayr, 1855 and Temnothorax Mayr, 1861 (Hymenoptera: Formicidae) of China with descriptions of twenty-eight new species and a key to the known Chinese species
Fig. 68. Higher elevational vegetations. A. Alpine shrubland (3815 m, Yushu, Qinghai). B. Pinus wallichiana A.B.Jacks. forest (3550 m, Bomi, Tibet). C. Betula albosinensis Burkill forest (3480 m, Ganzi, Sichuan). D. Quercus semecarpifolia Sm. forest (3250 m, Bomi, Tibet). E. Alpine conifer forest (3250 m, Yanyuan, Sichuan). F. Alpine Rhododendron L. forest (3250 m, Luquan, Yunnan). Photos by Zheng-Hui Xu.
FIG. 2 in A new terrestrial species of Colura (Marchantiophyta: Lejeuneaceae) at tropical high elevations (Boyacá, Colombia)
FIG. 2. — Colura stotleri sp. nov. A, ventral view of plant, showing an underleaf; B, stem leaf; C, stem leaf, showing inflated lobule; D, Habitat, Valle de los cojines, PNN sierra Nevada del Cocuy. Scale bars: A, 190 µm; B, C, 240 µm.
FIG. 1 in A new terrestrial species of Colura (Marchantiophyta: Lejeuneaceae) at tropical high elevations (Boyacá, Colombia)
FIG. 1. — Colura stotleri sp.nov. A, sporophyte; B, stem leaf; C, underleaf;D, sporophyte, apical part; E, valve with hinge cells; F, hinge cells and hyaline papilla. Drawn from holotype. Scale bars: A, 1600 µm; B, 200 µm; C, 150 µm; D, 900 µm; E, F, 50 µm.
Dataset: Elevation Oncology, Inc. (ELEV) Stock Performance
This dataset provides historical stock market performance data for specific companies. It enables users to analyze and understand the past trends and fluctuations in stock prices over time. This information can be utilized for various purposes such as investment analysis, financial research, and market trend forecasting.
The diet–intestinal microbiota dynamics and adaptation in an elevational migration bird, the Himalayan bluetail (Tarsiger rufilatus)
<p>Migratory birds experience changes in their environment and diet during seasonal migrations, thus requiring interactions between diet and gut microbes. Understanding the co-evolution of the host and gut microbiota is critical for elucidating the rapid adaptations of avian gut microbiota. However, dynamics of gut microbial adaptations concerning elevational migratory behavior, which is prevalent but understudied in montane birds remain poorly understood. We focused on the Himalayan bluetail (<em>Tarsiger rufilatus</em>) in the montane forests of Mt. Gongga to understand the diet-gut microbial adaptations of elevational migratory birds. Our findings indicate that elevational migratory movements can rapidly alter gut microbial composition and function within a month. There was a significant interaction between an animal-based diet and gut microbiota across migration stages, underscoring the importance of diet in shaping microbial communities. Furthermore, the gut microbial composition of <em>T. rufilatus</em> may be potentially altered by high-altitude acclimatization. An increase in fatty acid and amino acid metabolism was observed in response to low temperatures and limited resources, resulting in enhanced energy extraction and nutrient utilization. Moreover, microbial communities in distinct gut segments varied in relative abundance and responses to environmental changes. While the bird jejunum exhibited greater susceptibility to food and environmental fluctuations, there was no significant difference in metabolic capacity among gut segments. This study provides initial evidence of rapid diet-gut microbial changes in distinct gut segments of elevational migratory birds and highlights the importance of seasonal sample collection. Our findings provide a deeper understanding of the unique high-altitude adaptation patterns of the gut microbiota for montane elevational migratory birds.</p>
Data from: Thermal response of freshwater ciliates: can they survive at elevated lake temperatures?
<p>The response of the single-celled ciliates to increased temperature during global warming is critical for the structure and functioning of freshwater food webs. I conducted a meta-analysis of the literature from field studies and experimental evidence to assess the parameters characterising the thermal response of freshwater ciliates. The shape of the thermal performance curve predicts the ciliates' survival at supraoptimal temperatures (i.e., the width of the thermal safety margin, TSM). The ciliates' typical TSM is ~5°C. One-third of the freshwater ciliates dwelling permanently or occasionally in the pelagial cannot survive at temperatures exceeding 30°C. Likewise, cold-stenothermic species, which represent a significant fraction of euplanktonic ciliates, cannot survive by evolutionary adaptation to rapidly warming environments. The statistical analysis revealed that the ciliates' thermal performance is affected by their planktonic lifestyle (euplanktonic versus tychoplanktonic), ability to form cysts, and nutritional ecology. Bactivorous ciliates have the widest temperature niche, and algivorous ciliates have the narrowest temperature niche. Phenotypic plasticity and genetic variation, favouring the selection of pre-adapted species in a new environment, are widespread among freshwater ciliates. However, the lack of evidence for the temperature optima and imprecisely defined tolerance limits of most species hamper the present analysis. The extent of acclimation and adaptation requires further research with more ciliate species than the few chosen thus far. Recent eco-evolutionary experimental work and modelling approaches demonstrated that the ciliates' thermal responses follow general trends predicted by the metabolic theory of ecology and mechanistic functions inherent in enzyme kinetics. The present analysis identified current knowledge gaps and avenues for future research that may serve as a model study for other biota. Thermal adaptation may conflict with adaptation to other stressors (predators, food availability, pH), making general predictions on the future role of freshwater ciliates in a warmer environment difficult, if not impossible, at the moment.</p>
Dataset for the manuscript: "Elevated-Mn ChemCam Targets Illuminating Mn Redox Cycling and Diagenesis in the Bradbury Rise, Gale Crater, Mars"
<p><span>The dataset for the manuscript titled, “Elevated-Mn ChemCam Targets Illuminating Mn Redox Cycling and Diagenesis in the Bradbury Rise, Gale Crater, Mars” consists of a single CSV file. This CSV contains 1,539 rows, with one ChemCam observation point per row. The observation points in this file are from the ChemCam rock targets between martian solar days (sols) 1 and 600 of the MSL <em>Curiosity</em> rover mission that have at least one observation point with > 0.2 wt% MnO. Metadata and compositional data are provided for each row. The metadata includes the LIBS spectrum filename; the name of the target to which the observation point belongs; the class into which we grouped the target; the spacecraft clock value (timestamp) for the observation point; the sol on which the observation was taken; and the ChemCam sequence identifier; the observation point number within the sequence; the ChemCam-to-target distance (in meters); the laser power used for the LIBS measurements; the spectrum totals; and a binary column indicating whether the observation point has > 0.2 wt% MnO. The compositional data includes the oxide chemistry (oxide wt.%), RMSEP accuracy, and shot-to-shot standard deviation, for the major oxides SiO2, TiO2, Al2O3, FeOT, MgO, CaO, Na2O, K2O, as well as for MnO; the sum of oxides for each observation point is also provided.</span></p>
Fig. 2 in Elevation and vegetation determine Cryptosporidium oocyst shedding by yellow-bellied marmots (Marmota flaviventris) in the Sierra Nevada Mountains
Fig. 2. Association between Cryptosporidium oocyst shedding by yellow-bellied marmots in the Sierra Nevada Mountains and elevation (using 9,068 ft as the reference), stratified by presence or absence of vegetation at sites where scat samples were collected.
Fig. 1 in Elevation and vegetation determine Cryptosporidium oocyst shedding by yellow-bellied marmots (Marmota flaviventris) in the Sierra Nevada Mountains
Fig. 1. Locations in the Sierra Nevada Mountains where scat samples from yellow-bellied marmot were collected. The map contains 14 locations, but some locations clustered together due to the shorter distances between them and the scale of the map. The cluster in Yosemite National Park includes Tenaya Creek, Bridaveil Creek, Pothole Dome, and Lembert Dome. The cluster at Mineral King includes Mineral King, Eagle Lake, White Chief Creek, and Elk Kaweah River.
Fig. 4 in Patterns of Bird Diversity and Endemism Along an Elevational Gradient in the Southern Mexican Highlands.
Fig. 4. Rank-abundance curves for bird species at each of the four elevation sites in the Sierra Madre del Sur in southern Mexico. Bird species code: Aphelocoma sumichrasti (Asu), Catharus aurantiirostris (Cau), Cyanocitta coronata (Cco), Icterus pustulatus (Ipu), Junco phaeonotus (Jph), Melanerpes formicivorus (Mfo), Myadestes occidentalis (Moc), Myioborus miniatus (Mmi), Peucaea acuminata (Pac), Setophaga nigrescens (Sni), Tyrannus verticalis (Tve).
Fig. 5 in Patterns of Bird Diversity and Endemism Along an Elevational Gradient in the Southern Mexican Highlands.
Fig. 5. Differences in the abundance and composition of bird species per sampling point along an elevational gradient in the Sierra Madre del Sur in southern Mexico ordered by a non-metric multidimensional scaling based on the Bray-Curtis similarity index. Ellipses indicate 95% significance.
Fig. 2 in Patterns of Bird Diversity and Endemism Along an Elevational Gradient in the Southern Mexican Highlands.
Fig. 2. Bird species richness (q0) and diversity (q1 and q2) along an elevational gradient in the Sierra Madre del Sur in southern Mexico.
Fig. 1 in Patterns of Bird Diversity and Endemism Along an Elevational Gradient in the Southern Mexican Highlands.
Fig. 1. Geographic location of the (a) state of Guerrero in southern Mexico and (b) sampling sites (white triangles) within the Sierra Madre del Sur (red polygon). The nearest human settlements to each study site are shown as green stars.
Fig. 3 in Patterns of Bird Diversity and Endemism Along an Elevational Gradient in the Southern Mexican Highlands.
Fig. 3. Endemic bird species richness (q0) along an elevational gradient in the Sierra Madre del Sur in southern Mexico.
Fig. 6 in Patterns of Bird Diversity and Endemism Along an Elevational Gradient in the Southern Mexican Highlands.
Fig. 6. Faunal congruence curves for endemic bird species along an elevational gradient in the Sierra Madre del Sur in southern Mexico.
gellum black. Femora all black or forefemur ferruginous in apicoventral half; foretibia brown or ferruginous, midtibia brown ferruginous, hindtibia brown; tarsi varying from brown to ferruginous. ♂.– Unknown. GEOGRAPHIC DISTRIBUTION.– Known only from higher elevations (1020-1130 m above sea level) of Ranomafana National Park, Madagascar. RECORDS (Fig. 29).— All specimens were collected in Ranomafana National Park, Fianarantsoa Province. Holotype: ♀, Belle Vue at Talatakely at 21º15.99'S 47º25.21'E, alt. 1020 m, 14-21 Jan 2002, M. Irwin and R. Harin 'Hala (CAS). Paratypes: Radio tower at forest edge at 21º15.05'S 47º24.43'E, alt. 1130 m, 23 Aug – 7 Sept 2006 and 1-11 Nov 2006, M. Irwin and R. Harin 'Hala (2 ♀, CAS); same data as holotype except 22-28 Nov 2001 and R. Harin 'Hala alone (1 ♀, CAS); Vohiparara at 21º13.57'S 47º22.19'E, alt. 1110 m, 22-28 Nov 2001, R. Harin 'Hala (1 ♀, CAS). FIGURE 29. Collecting localities of Tachytes melanogaster sp. nov. in A Review of the Wasp Genus Tachytes Panzer, 1806 of Madagascar (Hymenoptera: Crabronidae)
gellum black. Femora all black or forefemur ferruginous in apicoventral half; foretibia brown or ferruginous, midtibia brown ferruginous, hindtibia brown; tarsi varying from brown to ferruginous. ♂.– Unknown. GEOGRAPHIC DISTRIBUTION.– Known only from higher elevations (1020-1130 m above sea level) of Ranomafana National Park, Madagascar. RECORDS (Fig. 29).— All specimens were collected in Ranomafana National Park, Fianarantsoa Province. Holotype: ♀, Belle Vue at Talatakely at 21º15.99'S 47º25.21'E, alt. 1020 m, 14-21 Jan 2002, M. Irwin and R. Harin 'Hala (CAS). Paratypes: Radio tower at forest edge at 21º15.05'S 47º24.43'E, alt. 1130 m, 23 Aug – 7 Sept 2006 and 1-11 Nov 2006, M. Irwin and R. Harin 'Hala (2 ♀, CAS); same data as holotype except 22-28 Nov 2001 and R. Harin 'Hala alone (1 ♀, CAS); Vohiparara at 21º13.57'S 47º22.19'E, alt. 1110 m, 22-28 Nov 2001, R. Harin 'Hala (1 ♀, CAS). FIGURE 29. Collecting localities of Tachytes melanogaster sp. nov.
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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.