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1,989 results for “Fires”
Data from: The potential importance of unburned islands as refugia for the persistence of wildlife species in fire-prone ecosystems
The persistence of wildlife species in fire-prone ecosystems is under increasing pressure from global change, including alterations in fire regimes caused by climate change. However, unburned islands might act to mitigate negative effects of fire on wildlife populations by providing habitat in which species can survive and recolonize burned areas. Nevertheless, the characteristics of unburned islands and their role as potential refugia for the post-fire population dynamics of wildlife species remain poorly understood. We used a newly developed unburned island database of the north-western United States from 1984–2014 to assess the post-fire response of the greater sage-grouse (Centrocercus urophasianus), a large gallinaceous bird inhabiting the sagebrush ecosystems of North America, in which wildfires are common. Specifically, we tested whether pre- and post-fire male attendance trends at mating locations (leks) differed between burned and unburned areas, and to what extent post-fire habitat composition at multiple scales could explain such trends. Using time-series of male counts at leks together with spatially-explicit fire history information, we modelled whether male attendance was negatively affected by fire events. Results revealed that burned leks often exhibit sustained decline in male attendance, whereas leks within unburned islands or >1.5 km away from fire perimeters tend to show stable or increasing trends. Analyses of post-fire habitat composition further revealed that sagebrush vegetation height within 0.8 km around leks, as well elevation within 0.8km, 6.4km, and 18 km around leks, had a positive effect on male attendance trends. Moreover, the proportion of the landscape with cheatgrass (Bromus tectorum) cover >8% had negative effects on male attendance trends within 0.8 km, 6.4 km, and 18 km of leks, respectively. Our results indicate that maintaining areas of unburned vegetation within and outside fire perimeters may be crucial for sustaining sage-grouse populations following wildfire, and requires more attention in wildlife management.
Data from: Fire management in the Brazilian Savanna: first steps and the way forward
1. Several decades of frustrated attempts to prevent fires in the Brazilian savanna (Cerrado) have led to deleterious ecological and management consequences. In 2014, the first Integrated Fire Management (IFM) program was launched in three protected areas (PA). 2. The IFM program considers local practices, ecological information, management options, and aims to create landscape mosaics of different fire histories to conserve biodiversity, reduce the prevalence of late-dry season (LDS) wildfires, protect fire-sensitive vegetation, and reduce conflicts between PA managers and local communities. 3. The first three years of imposed fire management regimes led to 40-57% reduction in LDS fires, improved dialogue between researchers, managers and local communities, generating fire management learning communities. 4. Synthesis and applications. This Integrated Fire Management programme represents a major advance in Cerrado management and conservation, by actively managing fires and decreasing the proportional of areas burnt by late-dry season wildfires. It can contribute to protected areas' management in Cerrado and other South American fire-prone ecosystems. Long-term monitoring and research are essential to understand the ecological implications and to improve fire management practices.
Data from: Demography and growth of subadult savanna trees: interactions of life history, size, fire season, and grassy understory
Tree populations in mesic (>650 mm precipitation/yr) savannas of the world have strong demographic bottlenecks to the transition of subadult trees to the canopy layer. Although such bottlenecks are a major determinant of savanna physiognomy, the factors that allow subadults to traverse the bottleneck are little studied. In a landscape-scale field experiment in a northern Australia savanna, we determined the survival and growth of 1506 permanently marked juveniles (<150 cm tall) and saplings (150–599 cm tall) of canopy species in response to season of fire (early dry season, late dry season, wet season, and unburned), and understory type (herbaceous forbs vs. sorghum [native annual grass]) that differ in seasonal growth patterns and competitive regimes. Trees were assessed before fires and at the end of the following growing season, without repeat fires. We used Akaike-information-criterion-based model selection and multi-model inference for data analyses. Initial height was an important explanatory variable for all responses except genet mortality wherein fire season was important for juveniles and understory type for saplings. Fire season was important to height growth of large juveniles and small saplings (enhanced the year following dry-season fires). Fire season × understory interactions were important for height growth of small juveniles and for the proportion of juveniles transitioning to saplings. Changes in stem numbers were affected by all explanatory variables. All fires topkilled most juveniles (fewer in early dry-season fires in herbaceous understory), but genet death was rare. Late dry-season fires topkilled most saplings; they failed to regain previous height and some died the following year. Given no further fires, persistent large juveniles can grow to sapling size within a year; whereas sapling success is severely hampered by late-dry-season fires, especially in grassy understory. Differences in seasonal phenological patterns of both understory vegetation and trees that vary with size and life history stage are among suggested explanatory mechanisms. Weighted averaged model coefficients for all responses to the explanatory variables are provided for use in population dynamics models. A conceptual framework links landscape-scale variables to tree attributes and responses, with implications for population ecology and community assembly.
Fire House
This is re-imagination of a historic Indianapolis Fire House. Every object you see in this scene is a 3D scan of an object from the Indianapolis Fire Fighters Museum. This is a preview build of the Fire House VR exhibit our team is working at IUPUI University Library. Special thanks to Brian Killilea, all of the folks at the Fire Fighters Museum, and the Digital Indy team at the Indianapolis Public Library. We also want to thank all of the IUPUI students and staff who helped make this project happen. Visit the museum yourself at: https://www.visitindy.com/indianapolis-firefighters-museum-historical-society Visit the entire 3D collection at: https://skfb.ly/6SzYz Visit the entire 2D collection at: http://www.digitalindy.org/cdm/landingpage/collection/ffm Source: Objaverse 1.0 / Sketchfab
a fire hydrant all pumped up
a red union city (nj) fire hydrant is orange pumping help Created with Polycam Source: Objaverse 1.0 / Sketchfab
Medieval fire holder
A medieval style fire holder Source: Objaverse 1.0 / Sketchfab
for fire emergency use only suez fire hydrant
union city nj fire hydrant most have a stern warning Created with Polycam Source: Objaverse 1.0 / Sketchfab
3rd National Competition of Line Follower and Fire Fighter Robots
<p>S.A. Tafrishi and H. Karimkhani. “3rd National Competition of Line Follower and<br /> Fire Fighter Robots”. Tabriz, Iran , First line follower programmed with Cortexm3<br /> Processor, Rougeknight Robot, 20-21 Sep. 2012.</p> <p>Link to board designs and all the codes:<br /> https://www.dropbox.com/sh/ag1m801kepnhadf/AACJF5FN6j7897DpWxmF82b1a?dl=0</p>
fire-randomizer: first release
<p>Tool to assess fire selectivity with Monte Carlo simulations.</p>
FIGURES 5–6 in Pseudacteon notocaudatus and Pseudacteon obtusitus (Diptera: Phoridae), two new species of fire ant parasitoids from South America
FIGURES 5–6. Oviscapes, dorsal-ventral view: (5) Pseudacteon obtusitus new species. Holotype. (6) Pseudacteon obtusus Borgmeier. Laboratory reared specimen, Brackenridge Field Laboratory, Austin, 068-01, source population Herradura, Argentina, via USDA-ARS. Scale bar 0.1 mm.
FIGURES 3–4 in Pseudacteon notocaudatus and Pseudacteon obtusitus (Diptera: Phoridae), two new species of fire ant parasitoids from South America
FIGURES 3–4. Oviscapes, dorsal-ventral view: (3) Pseudacteon disneyi Pesquero. Outline sketch based on illustration in Pesquero 2000. (4) Pseudacteon arcuatus Borgmeier. Outline sketch based on illustration in Plowes et al. 2009. Scale bar 0.1 mm.
FIGURES 1–2 in Pseudacteon notocaudatus and Pseudacteon obtusitus (Diptera: Phoridae), two new species of fire ant parasitoids from South America
FIGURES 1–2. Oviscapes, dorsal-ventral view: (1) Pseudacteon notocaudatus new species. Holotype. (2) Pseudacteon pradei Borgmeier. Specimen from Bom Jardim, Rio de Janeiro, Brazil, O. Bailez, 18.viii.2012 (UTIC). For clarity of illustration the upper and lower processes are each shown in a perpendicular dorsal view, although in practice they lie in slightly different planes. Scale bar 0.1 mm.
FIGURES 1–7 in New species and records of Pseudacteon Coquillett, 1907 (Diptera, Phoridae), parasitoids of the fire ant Solenopsis geminata group (Hymenoptera, Formicidae)
FIGURES 1–7. Pseudacteon pesqueroi new spec.. 1. Head with emphasis on antennae and forehead. 2. Wing. 3. Oviscape dorsal view (dashed long—stylet, dashed short—oviduct). 4. Palpus. 5. Tergite VI. 6. Sternite VI. 7. Oviscape side view (DP– dorsal plate, VP—ventral plate, O—oviduct, S—stylet). Scale bars equivalent to 0.1 mm.
FIGURES 8–14. Pseudacteon plowesi new spec. 8 in New species and records of Pseudacteon Coquillett, 1907 (Diptera, Phoridae), parasitoids of the fire ant Solenopsis geminata group (Hymenoptera, Formicidae)
FIGURES 8–14. Pseudacteon plowesi new spec. 8. Head with emphasis on antennae and forehead. 9. Wing. 10. Ovipositor dorsal view (dashed long—stylet, dashed short—oviduct). 11. Palpus. 12. Tergite VI. 13. Sternite VI. 14. Ovipositor side view (DP dorsal plate, VP– ventral plate, dashed long—stylet); Scale bars equivalent to 0.1 mm.
ROMtels video package - Enquiry 1 Great Fire of Newcastle and Gateshead
<p>Zip file with all video clips needed for ROMtels Enquiry 1 Great Fire of Newcastle and Gateshead. </p> <p>These videos were designed to be used with our free ROMtels software package (https://zenodo.org/record/269642#.WNJoboOLSUk). We encourage teachers to also use them as standalone videos. </p> <p>More information about ROMtels enquiries, including user guides and an overview of this enquiry: http://research.ncl.ac.uk/romtels/resources/tech/ </p>
Data from: The effect of climate change on forest fire danger and severity in the Canadian boreal forests for the period 1976–2100
<p>Recent climatic trends have increased forest fire activity in Canada. This study aimed to evaluate how forest fire conditions might evolve across the Canadian borael forests in the future and to inform discussion about the impact of climate change on fire danger and severity.</p>
Mexican mixed-species forest shows resilience to high-intensity fire
<p><span>In the aftermath of a high-intensity wildfire in La Michilía Biosphere Reserve, Mexico, an initial study suggested a shift from an oak-pine forest to a grass-savanna ecosystem. We conducted repeated measurements on sixty permanent plots 1, 5, 10, and 20 years after the original wildfire at paired burned and unburned study sites to capture spatial and temporal dynamics in forest composition and structure. We found that the burned site regained most pre-wildfire characteristics two decades after the wildfire. The ongoing regeneration in the burned site suggests that despite the remaining differences, the site is approaching a complete recovery, with forest characteristics analogous to the unburned site. Our findings indicate that the combination of seeders' wildfire resistance and resprouters' post-wildfire sprouting strategies in mixed-species forests provide high resilience to high-intensity wildfire. Moreover, protecting La Michilía as a biosphere reserve and heightened public awareness of the natural environment likely played an indispensable role in facilitating the recovery of the post-wildfire ecosystem.</span><span> </span></p>
Data from: Multi-decadal vegetation transformations of a New Mexico ponderosa pine landscape after severe fires and aerial seeding
<p>Wildfires and climate change are having transformative effects on vegetation composition and structure, and post-fire management may have long-lasting impacts on ecosystem reorganization. Post-fire aerial seeding treatments are commonly used to reduce runoff and soil erosion, but little is known about how seeding treatments affect native vegetation recovery over long periods of time, particularly in type-converted forests which have been dramatically transformed by the effects of repeated, high-severity fire. In this study, we analyze and report on a rare long-term (23-year) dataset that documents vegetation dynamics following a 1996 post-fire aerial seed treatment and subsequent 2011 high-severity reburn in a dry conifer forest of northern New Mexico in the southwestern United States. Repeated surveys between 1997 – 2019 of 49 permanent transects were used to test for differences in vegetation cover, richness, and diversity between seeded and unseeded areas, and to characterize the development of seeded and unseeded vegetation communities through time and across gradients of burn severity, elevation, and soil-available water capacity. Post-fire seeding led to a clear and sustained divergence in herbaceous community composition. Seeded plots had much higher cover of non-native graminoids, primarily Bromus inermis, a likely contaminant in the seed mix. High-severity reburning in all plots in 2011 reduced native graminoid cover by half at seeded plots compared to both pre-fire levels and to plots that were unseeded following the initial 1996 fire. In addition, increased fire severity was associated with increased non-native graminoid cover and reduced native graminoid cover, native species richness, and species diversity. This study documents a fire-driven ecosystem transformation from a former conifer forest into a shrub-grass system, reinforced by aerial seeding of grasses and high-severity reburning. This unique long-term dataset illustrates that post-fire seeding carries significant risk of unwanted non-native species invasions that persist through subsequent fires – indicating that alternative post-fire management actions merit consideration to better support native ecosystem resilience in the face of emergent climate change and increasing disturbance. Lastly, this study highlights the importance of long-term monitoring of post-fire vegetation dynamics, as short-term assessments will miss key elements of the full complexity of ecosystem responses to fire and post-fire management actions.</p>
Mapping firescapes for wild and prescribed fire management: a landscape classification approach
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Data and R-Scripts for the manuscript "Arctic tundra ecosystems under fire – potential trajectories for stable state shifts"
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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.