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371 results for “growth rate”
Data from: Assessing the impacts of satellite tagging on growth rates of immature hawksbill turtles
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Associations between metabolic traits and growth rate in brown trout (Salmo trutta) depend on thermal regime
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Data from: Decoupling between growth rate and storage remobilization in broadleaf temperate tree species
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Data from: Changes in age-structure over four decades were a key determinant of population growth rate in a long-lived mammal
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Neighbours matter and the weak succumb: chalara ash dieback infection is more severe in trees with fewer conspecific neighbours and lower prior growth rate
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Populations of arable weed species show intra-specific variability in germination base temperature but not in early growth rate
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Data from: Axial conduit widening, tree height and height growth rate set the hydraulic transition of sapwood into heartwood
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Does artificial feeding impact neonate growth rates in a large free-ranging mammal?
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Data from: A hyperspectral image can predict tropical tree growth rates in single-species stands
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Wood density and leaf size jointly predict woody plant growth rates across (but not within) species along a steep precipitation gradient
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Temporal instability of lake charr phenotypes: Synchronicity of growth rates and morphology linked to environmental variables?
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Growing in the city: urban evolutionary ecology of avian growth rates.
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C4 photosynthesis and the economic spectra of leaf and root traits independently influence growth rates in grasses
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Data for: Temperature effects on growth rates of Daphnia from different populations
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Supplemental information and Data for: Colloidal physics modeling reveals how per-ribosome productivity increases with growth rate in E. coli
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Phytoplankton growth and microzooplankton grazing rates from CCE LTER Process cruises in the California Current System, 2006 - 2017.
Rates of phytoplankton community growth and microzooplankton grazing on phytoplankton were assessed from chlorophyll a analyses of in situ dilution incubations as described in Landry et al. (2009). For each experiment (Array #), seawater was collected from predawn CTD (~2 a.m. local time) casts at 6-8 depths spanning the upper to lower euphotic zone. For each depth, we prepared a pair of polycarbonate bottles (2.7 L), one with whole seawater (100%), and one with 33% whole seawater (diluted with 0.1-µm filtered seawater) at each depth. Seawater was filtered directly from the Niskin bottles using a peristaltic pump, silicone tubing and an in-line Suporcap filter capsule that had previously been acid washed (10% trace-metal grade HCl followed by Milli-Q and seawater rinses). Dilution treatment bottles received pre-measured volumes of filtered water from the collection depths, and then were gently filled (silicone tubing below the water level) with unscreened water from the Niskin bottles. The filled bottles were tightly capped, placed into net bags and clipped onto attached rings at the depth of collection on a tether line attached to a satellite-tracked surface drifter (WOCE SVP) with a top strobe light, Globalstar telemetry and a 3-m holey-sock drogue centered at 15-m (mixed layer). Incubations were done in situ for 24-h (daily) to get daily averaged rates. In most cases, repeated experiments/deployments were done over the course of 2-5 days, using water collected each morning at the location of the drifter. These back-to-back experiments define experimental “cycles”. The second set of experiments were set up, before recovering the first. Hand recovery of the array, switching of net bags and redeployment was generally completed in 15-20 min. Rate estimates are based on initial and final subsamples (250 ml) taken for fluorometric analyses of Chl a. The samples were immediately filtered onto GF/F filters, and the Chl a extracted with 90% acetone in a dark refrigerator
Supporting R-code and data for "Why are population growth rate estimates of past and present hunter-gatherers so different?" (Tallavaara and Jørgensen, 2020)
<p>This submission contains data and R-code that enable to reproduce the data manipulations and analyses in the paper “Why are population growth rate estimates of past and present hunter-gatherers so different?” by Miikka Tallavaara and Erlend Kirkeng Jørgensen (Philosophical transactions of the Royal Society B). Please, cite the paper and this Zenodo repository if you use the files included in this Zenodo record in your work.</p> <p>The submission includes a html-file titled “Why are population growth rate estimates of past and present hunter-gatherers so different? - Data analyses” (TJ2020.html) that contains R-code and instructions and comments for running the code (open this file in your browser). In addition, the submission includes Rdata-file (dataTJ2020.Rdata) containing all the data that are not created within the code and pure R-code (TJ2020.R).</p>
Data from: Ontogeny of the trilobite Elrathia kingii (Meek, 1870), and comparison of growth rates between Elrathia kingii and Aulacopleura koninckii (Barrande, 1846)
<p>Trilobites offer almost unparalleled insight into the growth and development of fossil ecdysozoans. Here I use newly collected material of <i>Elrathia kingii </i>(Meek, 1870) to estimate growth rates and describe shape change over the ontogeny of <i>E. kingii.</i> Well-preserved, articulated specimens from all post-embryonic stages were collected from a 1.5-meter interval of the upper Wheeler Formation (Miaolingian Series, Cambrian) in western Utah (USA), and size and landmark-based shape data were digitized from photographs. Growth rates were estimated and compared to previously published data on the Silurian trilobite, <i>Aulacopleura koninckii </i>(Barrande, 1846). Like <i>A. koninckii</i>, the cephalic growth rate in <i>E. kingii</i> was constant and of similar magnitude to the minimum growth rate along the trunk, and growth rates in the trunk were lower during the holaspid ("adult") period than during the meraspid ("juvenile" period). However, body lengths at the onset of meraspis were smaller, the growth gradient along the trunk during meraspis was shallower, and the terminal number of thoracic tergites was smaller in <i>E. kingii </i>than in<i> A. koninckii. </i>Despite these differences, these two species had similar maximum body lengths, because higher overall growth rates in <i>E. kingii</i> compensated for other differences. The rate of cranidial shape change in <i>E. kingii</i> decreased at the transition from meraspis to holaspis, while the pygidium became more morphologically distinct from the thorax during holaspis. I also provide an emended diagnosis for <i>E. kingii</i>, descriptions of the ontogeny and ventral morphology, and evidence that <i>E. kingii</i> holaspids had an invariant number of tergites.</p>
Dataset for "Observations of new particle formation, modal growth rates, and direct emissions of sub-10 nm particles in an urban environment"
<p>Dataset for "Observations of new particle formation, modal growth rates, and direct emissions of sub-10 nm particles in an urban environment". Each directory contains a README.md including descriptions in Markdown format.</p>
Collateral benefits of targeted supplementary feeding on demography and growth rate of a threatened population
<p>1. Effective evidence-based conservation requires full quantification of the impacts of targeted management interventions on focal populations. Such impacts may extend beyond target individuals to also affect demographic rates of non-target conspecifics (e.g. different age classes). However, such collateral (i.e. unplanned) impacts are rarely evaluated, despite their potential to substantially alter conservation outcomes. Subsequent management decisions may then be poorly informed or erroneous.</p> <p>2. We used 15 years of individual-based demographic data in a "before-after control-impact" (BACI) analysis to quantify collateral demographic impacts of a targeted multi-year supplementary feeding programme designed to increase sub-adult survival and hence viability of a small, threatened red-billed chough (<i>Pyrrhocorax pyrrhocorax</i>) population. Specifically, we assessed whether the intervention also affected adult survival and reproductive success, and whether such collateral effects were themselves sufficient to stabilise population size and hence achieve short-term conservation aims.</p> <p>3. The probabilities of adult survival and successful reproduction increased substantially between the "before-feeding" and "during-feeding" periods in those choughs associated with supplementary feeding, but not otherwise. Overall breeding success (i.e. number of chicks fledged per occupied territory) also tended to increase, even though brood sizes did not increase. These relationships, which were detectible only through BACI analyses, suggest that supplementary feeding targeted at sub-adults had unplanned positive impacts on adult demographic rates.</p> <p>4. Deterministic matrix models designed to project population growth demonstrate that these estimated collateral effects were sufficient to make a substantial contribution to increasing population growth rate and achieving short-term population stability.</p> <p>5. Synthesis and applications. Our results indicate substantial positive collateral impacts of a targeted supplementary feeding intervention on population viability, despite no <i>a priori</i> expectation that the non-target adults were food-limited. This case-study illustrates how thorough assessment of collateral impacts of targeted interventions can affect assessment of short-term efficacy and reveal new opportunities for future interventions, thereby informing subsequent management decisions.</p>
ScienceDex guides
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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.