Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
33
datasets available to search
ShareScore release 0.9.0
Dataset results
33 results for “megafires”
Data and outputs for chapter 'The impacts of the 2019-20 wildfires on Australian fungi ' in 'Australia's Megafires: Biodiversity Impacts and Lessons from 2019-2020
<p><strong>Dataset includes raw data downloaded from the following sources: fungi_data.csv</strong></p> <ul> <li>Atlas of Living Australia occurrence download: https://doi.org/10.26197/ala.9e0ca388-9da2-4096-b1a3-26e2aaa51d8a. Accessed 2021-09-16. GBIF.org (16 September 2021)</li> <li>GBIF Occurrence Download https://doi.org/10.15468/dl.secenk</li> <li>Fungimap (https://fungimap.org.au/ (data obtained directly from Fungimap Inc.)</li> <li>MycoPortal (https://mycoportal.org/portal/index.php)</li> <li>iNaturalist (https://www.inaturalist.org/home)</li> </ul> <p><strong>Output files from point and polygon overlap with fire layer:</strong></p> <ul> <li>Fungi and fire analysis point overlap.xlsx</li> <li>Fungi and fire analysis polygon overlap.xlsx</li> </ul> <p> </p> <p> </p>
Movement behavior in a dominant ungulate underlies successful adjustment to a rapidly changing landscape following megafire
Open the record for dataset details and reuse information.
Mammalian resilience to megafire in western U.S. woodland savannas
Open the record for dataset details and reuse information.
After the 'Black Summer' fires: faunal responses to megafire depend on fire severity, proportional area burnt, and vegetation type
<ol> <li>Climate change and human activities have disrupted historical fire regimes, leading to complex and far-reaching impacts on global ecosystems. Despite extensive research in fire ecology, studies exploring vertebrate responses to megafires, and to nuanced fire characteristics, remain limited.</li> <li>We collected camera trap data 3–27 months following Australia's 2019–20 'Black Summer' megafires from 30 burnt sites and 10 unburnt sites. Our data included 14 animal species/groups, encompassing mammalian predators, small and medium-sized mammals, large herbivores, and birds. We used generalised additive mixed models to assess the influence of time-since-the-fires, burn status, fire severity, proportional area burnt, and vegetation type on species' activity.</li> <li>Models that included fire variables were well-supported for all species. The proportional cover of low-moderate or high-extreme severity fire had substantial support for five species, particularly herbivores, which generally showed a preference for burnt sites but at differing fire severities. The proportional area burnt, disregarding severity, was well supported for four species. At highly burned sites, fox activity peaked shortly after the fires, while small to medium-sized mammal activity increased more gradually. Vegetation type strongly influenced the response of four species to fire; in particular, wet forest birds preferred unburnt areas.</li> <li> <em>Policy implications</em>. We document variable short- to medium-term responses of a range of species to fire which could help guide management interventions. We demonstrate that animal species' responses to fire are diverse and better captured using broader landscape-scale fire variables. We found that species were strongly influenced by proportional area burnt, fire severity, and vegetation type. Introduced foxes were attracted to recently burnt areas, so timely predator control may benefit vulnerable prey species. Wet forest species were sensitive to fires and could benefit from preservation and restoration of these habitats. Some species exploited low-moderate severity burnt areas, while others preferred high-severity burns. This suggests that species will face diverse challenges and opportunities in future extreme fire events. We emphasise the importance of using multi-faceted approaches to account for the complex responses of co-occurring species to fire events.</li> </ol>
What do you mean, 'megafire'?
<p><strong>Dataset associated with the systematic review: "</strong><strong>What do you mean, ‘megafire’?"</strong></p>
Data for 'Vast ecosystem disturbance in a warming climate may jeopardize our climate goal of reducing CO2: a case study for the megafires in Australian 'Black Summer''
<p>These data support the manuscript 'Vast ecosystem disturbance in a warming climate may jeopardize our climate goal of reducing CO2 a case study for the megafires in Australian ‘Black Summer'', including megafire CO2 emissions in Australian 'Black Summer' estimated by BBM model and a top-down method. The delta RF simulations by GEOS-Chem RRTMG are also contained. In each separate folder there is a README.txt file as a user's guide. The methodology for deriving the datasets and more information can be found in the manuscript and SI.</p>
Datasets for The Dynamics of Megafire Smoke Plumes in Climate Models: Why a Converged Solution Matters for Physical Interpretations
<p>The data in this repository contains the information needed to reproduce the core results of the paper, "The Dynamics of Megafire Smoke Plumes in Climate Models: Why a Converged Solution Matters for Physical Interpretations" submitted to the Journal of Advances in Modeling Earth Systems (JAMES) on 10/3/2022.</p> <p> </p> <p>The "intsmoke*.txt" files are text files with the globally integrated smoke mass above 150 hPa for all simulations in the paper. A header is provided in each file.</p> <p>The "spectra*.mat" files are matlab files that contain fields used to plot the kinetic energy spectra for all simulations. The variable "kes" is the kinetic energy as a function of wavelength, "wvl" are the associated wavelengths of "kes". The variables "hcut" and "lcut" represent the indices of the data "kes" and "wvl" that are used to make the kinetic energy spectra plots in the paper.</p> <p>The "budget*.nc" files contain the budget terms for the relative, vertical vorticity evolution equation at the appropriate date/time. The fields in the netcdf file are self-describing. These budget terms are for the "optimal simulation" described in the paper.</p> <p>The "vort*.nc" file contains the vorticity fields just before the plume forcing starts based on the date/time on the file.</p>
Data from: Demographic effects of a megafire on a declining prairie grouse in the mixed-grass prairie
<p>Recent studies have documented benefits of small, prescribed fire and wildfire for grassland-dependent wildlife, such as lesser prairie-chickens (<em>Tympanuchus</em> <em>pallidicintus</em>), but wildlife demographic response to the scale and intensity of megafire (wildfire > 40,000 ha) in modern fragmented grasslands remains unknown. Limited available grassland habitat makes it imperative to understand if increasing frequency of megafires could further reduce already declining lesser prairie-chicken populations, or if historical evolutionary interactions with fire make lesser prairie-chickens resilient. To evaluate lesser prairie-chicken demographic response to megafires, we compared lek counts, nest density, and survival rates of adults, nests, and chicks before (2014–2016) and after (2018–2020) a 2017 megafire in the mixed-grass prairie of Kansas, USA (Starbuck fire ~254,000 ha). There was a 67% decline in attending males on leks post-fire and a 46% decline in occupied leks post-fire. Despite population declines as indicated by lek counts, adult female breeding season survival (Ŝ) was similar pre- (Ŝ <span>= </span>0.65 ± 0.08 [SE]) and post-fire (0.61 ± 0.08), as was chick survival (pre-fire: 0.23 ± 0.07; post-fire: 0.27 ± 0.11). Nest survival appeared lower post-fire (pre-fire: 0.38 ± 0.06; post-fire: 0.20 ± 0.06), <span>but did not differ at the 95% confidence interval.</span> Nest density of marked females declined 73% in areas burned by megafire. Although lesser prairie-chickens persisted in the study area and we documented minimal effects on most demographic rates, reduced lesser prairie-chicken abundance and reproductive output suggests full recovery may take >3 years. Increased propensity for megafire resulting from suppression of smaller fires, compounded by climate change and woody encroachment, may impose a short-term (3-5 year) threat to already declining lesser prairie-chicken populations.</p>
Dataset associated with "Assessment of the effects of the 2021 Caldor megafire on soil physical properties, eastern Sierra Nevadas, USA"
<p>This dataset includes both raw and processed data associated with the publication entitled "Assessment of the effects of the 2021 Caldor megafire on soil physical properties, eastern Sierra Nevadas, USA", published in MDPI Fire (doi: <a href="https://doi.org/10.3390/fire6020066">10.3390/fire6020066</a>). Raw files include exported .xlsx files from Meter Group HYPROP analyses, .csv files from 10 replicate measurements of saturated hydraulic conductivity for each analyzed sample using the Meter Group KSAT device, and raw .dat files from measurement of bulk thermal properties. A single additional file also documents the laboratory results from particle size and loss on ignition analyses. Processed data includes curve fitting parameters associated with fitting the soil water retention curves (SWRC) and thermal conductivity functions (TCFs) for each sample, as described in Sion et al. (2023). Additional requests associated with data from Sion et al. (2023) should be directed to the lead author.</p>
Data from: Superb Lyrebird nesting habitat and the 2019 megafires in Australia
<p>An animal's habitat offers food and protection necessary for survival and reproduction and consequently impacts individual fitness. In birds, understanding nest site selection is critical to understanding a species' ecology and developing effective conservation management actions. The Superb Lyrebird (<em>Menura novaehollandiae)</em> is one of many endemic species extensively impacted by Australia's unprecedented 2019-20 megafires. Over a period of 5 months, an estimated 43% of the entire range of this slow-breeding species was burnt, with the biggest impact on the central subspecies <em>M. n. novaehollandiae</em> (55%). 4 months prior to these megafires, we conducted a field study of nest site habitat selection in the Superb Lyrebird within the Greater Blue Mountains World Heritage Area (15,400 km<sup>2</sup>): a key stronghold of the central subspecies of the Superb Lyrebird. We found that at the local scale, lyrebird nest sites were more likely to be found in habitats characterized by dense canopy trees and rich in rainforest elements such as vines and treeferns. At the landscape scale, lyrebird nests were most likely to be constructed in rainforest; this fire-sensitive habitat type made up only 1% of the Greater Blue Mountains World Heritage Area. The probability of nest occurrence also increased with slope. We also found that more than 74% of all nesting habitat within the Greater Blue Mountains World Heritage Area burned in the 2019-20 megafires, including 80% of areas of high suitability for nesting. These results suggest that the impact of these megafires on Superb Lyrebirds may be greater than currently thought. Given the importance of rainforest as nesting habitat for the superb lyrebird, managers should prioritize its restoration and protect it from future fire events. More broadly, our results illustrate how large-scale catastrophic events – such as megafires – can disproportionately affect habitats critical to specific points within an organism's life cycle.</p>
iNaturalist data for: Multi-taxon biodiversity responses to the 2019–2020 Australian megafires
<p><span>Conditions conducive to fires are becoming increasingly common and widespread under climate change. Recent fire events across the globe have occurred over unprecedented scales, affecting a diverse array of species and habitats. Understanding biodiversity responses to such fires is critical for conservation. Quantifying post-fire recovery is problematic across taxa, from insects to plants to vertebrates, especially at large geographic scales. Novel datasets can address this challenge. We use presence-only citizen science data from iNaturalist, collected before and after the 2019-2020 megafires in burnt and unburnt regions of eastern Australia, to quantify the effect of post-fire diversity responses, up to 18 months post-fire. The geographic, temporal, and taxonomic sampling of this dataset was large, but sampling effort and species discoverability were unevenly spread. We used rarefaction and prediction (iNEXT) with which we controlled sampling completeness among treatments, to estimate diversity indices (Hill numbers: q=0-2) among nine broad taxon groupings and seven habitats, including 3885 species. We estimated an increase in species diversity up to 18 months after the 2019–2020 Australian megafires in regions which were burnt, compared to before the fires in burnt and unburnt regions. Diversity estimates in dry sclerophyll forest matched and likely drove this overall increase post-fire, while no taxon groupings showed clear increases inconsistent with both control treatments post-fire. Compared to unburnt regions, overall diversity across all taxon groupings and habitats greatly decreased in areas exposed to extreme fire severity. Post-fire life histories are complex and species detectability is an important consideration in all post-fire sampling. We demonstrate how fire characteristics, distinct taxa, and habitat influence biodiversity, as seen in local-scale datasets. Further integration of large-scale datasets with small-scale studies will lead to a more robust understanding of fire recovery.</span></p>
After the ‘Black Summer’ fires: faunal responses to megafire depend on fire severity, proportional area burnt, and vegetation type
Open the record for dataset details and reuse information.
Data from: Impact assessment of the Australian 2019-20 megafires on roost sites of the vulnerable grey-headed flying-fox (Pteropus poliocephalus)
Open the record for dataset details and reuse information.
Data from: Superb Lyrebird nesting habitat and the 2019 megafires in Australia
Open the record for dataset details and reuse information.
iNaturalist data for: Multi-taxon biodiversity responses to the 2019–2020 Australian megafires
Open the record for dataset details and reuse information.
Data from: Demographic effects of a megafire on a declining prairie grouse in the mixed-grass prairie
Open the record for dataset details and reuse information.
Continental-scale shift in foraging habitat use by a highly nomadic species following Australia’s Black Summer megafires
Open the record for dataset details and reuse information.
Data from: Megafires attract avian scavenging but carcasses still persist
<p>AIM</p> <p>The effects of fires on vertebrate scavengers have not been characterised despite the importance of scavenging in shaping food web dynamics. We assessed whether the 2019/2020 megafires in Australia shifted the species richness, carcass detection, and feeding times of vertebrate scavengers, and whether the fire affected carcasses persistence times.</p> <p>LOCATION</p> <p>Blue Mountains, south-eastern Australia.</p> <p>METHOD</p> <p>We monitored vertebrate scavengers via remote cameras on a total of 60 experimentally placed kangaroo carcasses for 30 days in two periods before the megafire (January 2018 and 2019) and one period after the megafire (March 2020) in both open and closed canopy habitats. We compared vertebrate species richness, carcass discovery and scavenging activity before and after the fire and between the two habitats. We also assessed carcass persistence (time to carcass removal) before and after the fire and between the two habitats.</p> <p>RESULTS</p> <p>We collected more than 689,000 images of nine vertebrate scavengers including six avian, two mammal, and one reptile species. We detected no decline in scavenger species richness following the fire, and rates of carcass detection for mammals and reptiles did not differ across pre- and post-fire periods. On the other hand, avian scavengers detected carcasses faster in the post-fire period and in open compared to closed canopy habitats. Overall, scavengers increased their feeding times in the post-fire period, especially avian scavengers, but carcasses persisted longer in the post-fire period when compared to the second pre-fire period.</p> <p>MAIN CONCLUSION</p> <p>Our study identified that a widespread fire could influence avian scavenging dynamics, but that other factors affected carcass persistence times over the study period. Future monitoring of carcasses following fires should focus on the responses by both vertebrate and insect scavengers to fully elucidate the effects of these major disturbance events on critical ecosystem processes linked to decomposition.</p>
Supplementary material 4 from: Jones GM, Gutiérrez RJ, Kramer HA, Tempel DJ, Berigan William J, Whitmore Sheila A, Peery MZ (2019) Megafire effects on spotted owls: elucidation of a growing threat and a response to Hanson et al. (2018). Nature Conservation 37: 31-51. https://doi.org/10.3897/natureconservation.37.32741
: Data type: Representative photographs of two spotted owl nest areas burned at high fire severity during the King Fire (2014) and three general areas within the Eldorado Study Area in the central Sierra Nevada, California, USA that depict three general fire severity classes of this fire.
Supplementary material 2 from: Jones GM, Gutiérrez RJ, Kramer HA, Tempel DJ, Berigan William J, Whitmore Sheila A, Peery MZ (2019) Megafire effects on spotted owls: elucidation of a growing threat and a response to Hanson et al. (2018). Nature Conservation 37: 31-51. https://doi.org/10.3897/natureconservation.37.32741
: Data type: Representative photographs of two spotted owl nest areas burned at high fire severity during the King Fire (2014) and three general areas within the Eldorado Study Area in the central Sierra Nevada, California, USA that depict three general fire severity classes of this fire.
ScienceDex guides
Understand access before you commit
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.