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76 results for “long-term trends”
FIGURE 5 in Long-term trends of fishery landings and target fish populations in the lower La Plata basin
FIGURE 5 | Trends in abundance of the landings of the main 12 fish species in the commercial fishery monitoring of Santa Fe Province. Ellipses represent the confidence intervals built with the maximum likelihood profile of the estimation of the instantaneous population growth rate (r). Vertical white lines within each ellipse represent the point estimate of r for each species. The dashed line at the center of the chart indicates the position of the zero value for r. Numbers on the right side of the chart are the total number of individuals caught for each species.
FIGURE 4 in Long-term trends of fishery landings and target fish populations in the lower La Plata basin
FIGURE 4 | Trends in abundance of the landings of the main 19 fish species in the commercial fishery monitoring of Chaco Province at Puerto Antequera. Ellipses represent the confidence intervals built with the maximum likelihood profile of the estimation of the instantaneous population growth rate (r). Vertical white lines within each ellipse represent the point estimate of r for each species. Black ellipses are population trends for drift gillnet landings and grey ellipses are population trends for longline landings. The dashed line at the center of the chart indicates the position of the zero value for r. Numbers on the right side of the chart are the total number of individuals caught using gillnets or longlines for each species.
FIGURE 1 in Long-term trends of fishery landings and target fish populations in the lower La Plata basin
FIGURE 1 | A. Map of the southern region of La Plata basin showing the location of landing sites where information was collected for historical statistics of the fishery production of Argentina between 1934 and 1986. The landing sites of each river are indicated by colors; Violet: Uruguay River; Blue: Río de la Plata; Light green: Lower Paraná River; Dark green: Middle Paraná River; Red: Higher Paraná; Maroon: Paraguay; Pink: Bermejo River. B. Map of the southern section of Paraná River, showing landing sites and sampling localities of recent commercial fishery monitoring programs and surveys of fish populations, respectively. Filled blue circles indicate landing sites of commercial fishery monitoring of Santa Fe; the violet filled circle indicate the landing site of recente commercial fishery monitoring of Chaco; green empty circles indicate sampling sites of EBIPES survey of fish populations, and red empty circles indicate sampling sites of Corrientes survey of fish populations. The middle Paraná River floodplain and delta is shaded in bright green. Ar: Argentina; Br: Brazil; Py: Paraguay; Uy: Uruguay.
FIGURE 2 in Long-term trends of fishery landings and target fish populations in the lower La Plata basin
FIGURE 2 | Trends in annual landings of 20 freshwater fish taxa in the historical fishery production of Argentina (1934–1986) for all rivers of the La Plata basin and separately for each one of the rivers. Symbols represent the slopes of the linear regressions between the annual landings and year. Red symbols indicate slopes with significant negative values, green symbols indicate slopes with significant positive values and grey symbols indicate slopes not significantly different from zero. Whiskers around each symbol indicate 95% confidence intervals generated by bootstrap method.
Long-Term Demographic Trends in Prehistoric Italy: climate impacts and regionalised socio-ecological trajectories (dataset and R script)
<p>The present digital archive is the outcome of the paper: <strong>Palmisano, A., Bevan, A., Kabelindde, A., Roberts, N., and Shennan, S., 2021. <a href="https://doi.org/10.1007/s10963-021-09159-3">Long-Term Demographic Trends in Prehistoric Italy: climate impacts and regionalised socio-ecological trajectories</a>. <em>Journal of World Prehistory, 34 (3)</em>, </strong>381-432<strong>.</strong></p> <p>The dataset included here provides a collection of <strong>4,010</strong> radiocarbon dates from <strong>947</strong> archaeological sites for a period spanning between 11,000 and 1500 BP. In addition, the digital archive related to this paper provides reproducible analyses in the form of one script written in R statistical computing language.</p> <p>List of versions:</p> <ul> <li><strong>1.0.</strong> 4 August 2021 - First public release of the dataset on Zenodo. </li> </ul>
Resources for publication "Meteorologically normalised long-term trends of atmospheric ammonia (NH3) in Switzerland/Liechtenstein and the explanatory role of gas-aerosol partitioning"
<p>Resources for publication "Meteorologically normalised long-term trends of atmospheric ammonia (NH3) in Switzerland/Liechtenstein and the explanatory role of gas-aerosol partitioning".</p>
Supplementary data for Long-term trends in functional diversity of exploited marine fish in the Azores archipelago: past and present
<p>Supplementary infromation for the manuscript entitled "<strong>Long-term trends in functional diversity of exploited marine fish in the Azores’ archipelago: past and present</strong>"</p>
Mixed population trends inside a California protected area: Evidence from long-term community science monitoring
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Data from: Long-term trends in the occupancy of ants revealed through use of multi-sourced datasets
<p><span>We combined participatory science data and museum records to understand long-term changes in occupancy for 29 ant species in Denmark over 119 years. Bayesian occupancy modelling indicated change in occupancy for 15 species: five increased, four declined and six showed fluctuating trends. We consider how trends may have been influenced by life-history and habitat changes. Our results build on an emerging picture that biodiversity change in insects is more complex than implied by the simple insect decline narrative.</span></p>
Data from: Socio-ecological drivers of long-term ecosystem carbon stock trend: An assessment with the LUCCA model of the French case
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Investigation of satellite vertical sensitivity on long-term retrieved lower tropospheric ozone trends
<p>Regional time-series (monthly mean) of lower tropospheric column ozone (LTCO3; 0-6 km or surface to 450 hPa) between 2008 and 2017 from three satellite products and an Earth System Model (UKESM1.0 - https://ukesm.ac.uk/). The regions of focus are North America, Europe and East Asia based on the HTAP-2 land mask (https://htap.org/). The three satellite products are from the Ozone Monitoring Instrument (OMI) (RAL Space - https://www.ralspace.stfc.ac.uk/Pages/Remote-Sensing.aspx), the Infrared Atmospheric Sounding Interferometer (IASI) FORLI (Fast Optimal Retrievals on Layers for IASI) scheme (https://iasi.aeris-data.fr/cos_iasi_b_arch/) and the IASI SOFRID (SOftware for Fast Retrievals of IASI Data) scheme (https://iasi-sofrid.sedoo.fr/). These data have been used to investigate long-term trends and investigation of satellite long-term discrepancies in retrieved LTCO3. The pre-print of the relevant manuscript can be found at https://doi.org/10.5194/egusphere-2023-3109. </p>
Temporal and regional trends of antibiotic use in long-term aged care facilities across 39 countries, 1985-2019: systematic review and meta-analysis
<p><b>Background</b></p> <p>Antibiotic misuse is a key contributor to antimicrobial resistance and a concern in long-term aged care facilities (LTCFs). Our objectives were to: i) summarise key indicators of systemic antibiotic use and appropriateness of use, and ii) examine temporal and regional variations in antibiotic use, in LTCFs (PROSPERO registration CRD42018107125).</p> <p><b>Methods & Findings</b></p> <p>Medline and EMBASE were searched for studies published between 1990-2021 reporting antibiotic use rates in LTCFs. Random effects meta-analysis provided pooled estimates of antibiotic use rates (percentage of residents on an antibiotic on a single day [point prevalence] and over 12 months [period prevalence]; percentage of appropriate prescriptions). Meta-regression examined associations between antibiotic use, year of measurement and region. </p> <p>A total of 90 articles representing 78 studies from 39 countries with data between 1985-2019 were included. Pooled estimates of point prevalence and 12-month period prevalence were 5.2% (95% CI: 3.3-7.9; n=523,171) and 62.0% (95% CI: 54.0-69.3; n=946,127), respectively. Point prevalence varied significantly between regions (Q=224.1, df=7, p<0.001), and ranged from 2.4% (95% CI: 1.7-2.7) in Eastern Europe to 9.0% in the British Isles (95% CI: 7.6-10.5) and Northern Europe (95% CI: 7.7-10.5). Twelve-month period prevalence varied significantly between region (Q=15.1, df-3, p=0.002) and ranged from 53.9% (95% CI: 48.3-59.4) in the British Isles to 68.3% (95% CI: 63.6-72.7) in Australia. Meta-regression found no association between year of measurement and antibiotic use prevalence. The pooled estimate of the percentage of appropriate antibiotic prescriptions was 28.5% (95% CI: 10.3-58.0; n=17,245) as assessed by the McGeer criteria. Year of measurement was associated with decreasing appropriateness of antibiotic use over time (OR: 0.78, 95% CI: 0.67-0.91). The most frequently used antibiotic classes were penicillins (n=44 studies), cephalosporins (n=36), sulphonamides/trimethoprim (n=31), and quinolones (n=28). </p> <p><b>Conclusions</b></p> <p>Coordinated efforts focusing on LTCFs are required to address antibiotic misuse in LTCFs. Our analysis provides overall baseline and regional estimates for future monitoring of antibiotic use in LTCFs. </p>
Data from: Contrasting long-term trends in juvenile abundance of a widespread cold-water salmonid along a latitudinal gradient: Effects of climate, stream size and migration strategy
<p><span>A changing climate reshapes the range distribution of many organisms, and species with relatively low thermal optima, like many salmonids, are increasingly expected to face local population extinctions at lower latitudes. Understanding where and how fast these changes are happening is of pivotal importance for successful mitigation and conservation efforts.</span></p> <p><span>We used an extensive electrofishing database to explore temporal trends of brown trout juveniles (<em>Salmo</em> <em>trutta</em> L.) in 218 locations from 174 Swedish streams, over the last 30 years (1991–2020). We hypothesized that 1) declines in abundance have occurred predominately in the warmer, southern regions, while increases have occurred in the colder, northern regions, 2) larger stream sizes may partly offset negative effects of climate, and 3) migrating and resident populations are affected differently by a warming climate.</span></p> <p><span>We found that abundance of brown trout juveniles generally declined in warmer regions, especially in smaller streams (≤ 6 m wide), while the abundance increased in colder regions. In larger streams, negative effects of higher temperatures were seemingly buffered, as we found lower rates of decline or even positive trends. The rate of change (i.e. the slopes of the trends in abundance) was more pronounced towards the climate extremes and was on average zero in regions with a normal annual air temperature (average temperature over 30-year period) around 5–6 ºC. Warmer climate had stronger effects on migrating compared to resident populations, suggesting that climate-induced loss of stream connectivity could be an additional factor that hinders recruitment in anadromous populations in a changing climate.</span></p> <p><span>Considering predictions of increasing temperatures and frequency of summer droughts, management of cold-water salmonid populations should focus on conserving and restoring riparian vegetation, wetlands, climate and thermal refugia, and habitat integrity overall. Such measures may, however, not suffice for small streams at lower latitudes, unless hydrological connectivity is maintained.</span></p>
Data from: Long-term trends in grassland bird relative abundance on focal grassland landscapes in Missouri
<p><span>North American grassland birds have widely declined over the past 50 years, largely due to anthropogenic-driven loss of native prairie habitat. In response to these declines, many conservation programs have been implemented to help secure wildlife habitat on private and public lands. The Grasslands Coalition is one such initiative established to advance the conservation of grassland birds in Missouri. The Missouri Department of Conservation conducted annual point count surveys for comparison of grassland bird relative abundance between focal grassland areas and nearby paired (i.e., containing no targeted management) sites. We analyzed 17 years of point count data with a generalized linear mixed model in a Bayesian framework to estimate relative abundance and trends across focal or paired sites for nine bird species of management interest that rely on grasslands: barn swallow (<em>Hirundo</em> <em>rustica</em>), brown-headed cowbird (<em>Molothrus</em> <em>ater</em>), dickcissel (<em>Spiza</em> <em>americana</em>), eastern meadowlark (<em>Sturnella</em> <em>magna</em>), grasshopper sparrow (<em>Ammodramus</em> <em>savannarum</em>), Henslow's sparrow (<em>A</em>. <em>henslowii</em>), horned lark (<em>Eremophila</em> <em>alpestris</em>), northern bobwhite (<em>Colinus</em> <em>virginianus</em>), and red-winged blackbird (<em>Agelaius</em> <em>phoeniceus</em>). Relative abundance of all species except eastern meadowlarks declined regionally. Relative abundance of barn swallows, brown-headed cowbirds, dickcissels, eastern meadowlarks, Henslow's sparrows, and northern bobwhites was higher in focal than paired sites, though relative abundance trends were only improved in focal vs. paired areas for dickcissels and Henslow's sparrows. Relative abundance increased with increasing grassland cover at the local (250-m radius) scale for all species except horned larks and red-winged blackbirds and at the landscape (2,500-m radius) scale for all species except dickcissels, eastern meadowlarks, and northern bobwhites. Our results suggest focal areas contained greater relative abundances of several grassland species of concern, likely due to increased availability of grassland habitat at local and landscape scales. Further efforts to decrease landscape-scale fragmentation and improve habitat quality may be needed to achieve conservation goals.</span></p>
Dataset for study Long-term changes in urban bird populations: correspondence of the trends between urban and rural areas
<p>Dataset used for a study "Long-term changes in urban bird populations: correspondence of the trends between urban and rural areas"</p> <p>Data structure:</p> <p>Type = type of environment (R - rural, U - urban)<br> POID = unique identifier of each census point across all transects<br> Transect = unique identifier of a transect (each contains 20 census points)<br> Point = unique identifier of a point within one transect<br> Year = year of the count<br> Species = scientific name of bird species<br> Count = number of birds counted</p> <p>Each species has its own datafile.</p>
Temporal and regional trends of antibiotic use in long-term aged care facilities across 39 countries, 1985-2019: systematic review and meta-analysis
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Data from: Contrasting long-term trends in juvenile abundance of a widespread cold-water salmonid along a latitudinal gradient: Effects of climate, stream size and migration strategy
Open the record for dataset details and reuse information.
Data from: Long-term trends in the occupancy of ants revealed through use of multi-sourced datasets
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Impact of data density and endmember definitions on long-term trends in ground cover fractions across European grasslands
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Data from: Long-term trends in grassland bird relative abundance on focal grassland landscapes in Missouri
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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)
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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.