Find research datasets worth reusing

opencc-by-4.0Nov 2014View details →

Figure 1 in Confirmation of introduced Louisiana pinesnakes, Pituophis ruthveni, in Florida based on molecular analyses

Figure 1. Map of Zoo Miami bounded in green. Note that major roadways, residential areas, and undeveloped protected lands surround zoo property. Dots represents locations of Pituophis found on zoo property; yellow = UF-Herpetology 157954 (gravid female) and red = UF-Herpetology 163092 (adult male).

Linked collectors and determiners for: Louisiana State University, Shirley C. Tucker Herbarium - Lichens.

Natural history specimen data linked to collectors and determiners held within, "Louisiana State University, Shirley C. Tucker Herbarium - Lichens". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/de4500ba-fe61-4a51-a0c6-e01c3016c6eb">https://bionomia.net/dataset/de4500ba-fe61-4a51-a0c6-e01c3016c6eb</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/de4500ba-fe61-4a51-a0c6-e01c3016c6eb">https://gbif.org/dataset/de4500ba-fe61-4a51-a0c6-e01c3016c6eb</a>. Formatted as a Frictionless Data package.

Linked collectors and determiners for: Southeastern Louisiana University Herpetology Collection.

Natural history specimen data linked to collectors and determiners held within, "Southeastern Louisiana University Herpetology Collection". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/65dfe059-f1c1-4ec9-9a05-d6877a1d2842">https://bionomia.net/dataset/65dfe059-f1c1-4ec9-9a05-d6877a1d2842</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/65dfe059-f1c1-4ec9-9a05-d6877a1d2842">https://gbif.org/dataset/65dfe059-f1c1-4ec9-9a05-d6877a1d2842</a>. Formatted as a Frictionless Data package.

Linked collectors and determiners for: Louisiana State University, Shirley C. Tucker Herbarium - Vascular Plants.

Natural history specimen data linked to collectors and determiners held within, "Louisiana State University, Shirley C. Tucker Herbarium - Vascular Plants". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/56e9c560-bd2a-11dd-b15e-b8a03c50a862">https://bionomia.net/dataset/56e9c560-bd2a-11dd-b15e-b8a03c50a862</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/56e9c560-bd2a-11dd-b15e-b8a03c50a862">https://gbif.org/dataset/56e9c560-bd2a-11dd-b15e-b8a03c50a862</a>. Formatted as a Frictionless Data package.

Linked collectors and determiners for: LSUM Bernard Lowy Mycological Herbarium at Louisiana State University - Fungi.

Natural history specimen data linked to collectors and determiners held within, "LSUM Bernard Lowy Mycological Herbarium at Louisiana State University - Fungi". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/0d4af118-b79e-40c7-9cc6-142c5027cb16">https://bionomia.net/dataset/0d4af118-b79e-40c7-9cc6-142c5027cb16</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/0d4af118-b79e-40c7-9cc6-142c5027cb16">https://gbif.org/dataset/0d4af118-b79e-40c7-9cc6-142c5027cb16</a>. Formatted as a Frictionless Data package.

Linked collectors and determiners for: University of Louisiana at Monroe Herbarium, R. Dale Thomas Collection.

Natural history specimen data linked to collectors and determiners held within, "University of Louisiana at Monroe Herbarium, R. Dale Thomas Collection". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/bb0366a9-2a7e-44f8-9c9a-e49c23dae2f8">https://bionomia.net/dataset/bb0366a9-2a7e-44f8-9c9a-e49c23dae2f8</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/bb0366a9-2a7e-44f8-9c9a-e49c23dae2f8">https://gbif.org/dataset/bb0366a9-2a7e-44f8-9c9a-e49c23dae2f8</a>. Formatted as a Frictionless Data package.

opencc-zeroApr 2024View details →

Linked collectors and determiners for: Louisiana State University Shreveport, D. T. MacRoberts Herbarium.

Natural history specimen data linked to collectors and determiners held within, "Louisiana State University Shreveport, D. T. MacRoberts Herbarium". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/074e65b1-3d8c-4d8e-ade5-6b7e7aecc1ad">https://bionomia.net/dataset/074e65b1-3d8c-4d8e-ade5-6b7e7aecc1ad</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/074e65b1-3d8c-4d8e-ade5-6b7e7aecc1ad">https://gbif.org/dataset/074e65b1-3d8c-4d8e-ade5-6b7e7aecc1ad</a>. Formatted as a Frictionless Data package.

opencc-by-4.0Sep 2011View details →

Figures 1-4. Boraria spp. 1 in Distribution of the American milliped genus Boraria Chamberlin, 1943: Introductions of B. stricta (Brölemann, 1896) in New York and B infesta (Chamberlin, 1918) in Connecticut; indigenous occurrence of B profuga (Causey, 1955) in Louisiana (Diplopoda: Polydesmida: Xystodesmidae).

Figures 1-4. Boraria spp. 1) A cluster of B. stricta under leaves on saturated substrate at Mianus River Gorge Preserve, Westchester Co., New York. 2) An individual of B. stricta climbing a log at this site; note the juvenile in the depression left of center. 3) A tributary of the Mianus River in the Preserve showing leaf litter and the surrounding deciduous forest, an ideal environment for B. stricta. 4) B. infesta from Avon, Hartford Co., Connecticut.

opencc-by-4.0Aug 2021View details →

Discussions of video evidence for the Ivory-billed Woodpecker in Louisiana and Florida

These lectures discuss video evidence for the persistence of the Ivory-billed Woodpecker that was obtained in Louisiana in 2006 and 2008 and in Florida in 2007. Footage from the Cornell Laboratory of Ornithology is used with the permission of John Fitzpatrick.

opencc-by-4.0Aug 2021View details →

Locations where video evidence for the Ivory-billed Woodpecker was obtained in Louisiana

This video confirms the locations where evidence for the persistence of the Ivory-billed Woodpecker was obtained in the Pearl River swamp in Louisiana in 2006 and 2008. A drone is launched from the locations where the videos were obtained. Trees that appear in the videos were still recognizable when the drone video was obtained in 2021. As the drone gains altitude, the rocket towers at Stennis Space Center and other recognizable landmarks come into view. This video debunks speculations that the bird in the 2006 video could be another Camphephilus woodpecker that was filmed in South America.

opencc-by-4.0Aug 2021View details →

Context component of video evidence for the Ivory-billed Woodpecker in Louisiana and Florida

These videos discuss the context component of video evidence for the Ivory-billed Woodpecker in Louisiana and Florida. For a period of more than ten minutes after a sighting in Louisiana in 2006, I tracked the movements of high-pitched calls, backed the kayak into an observation position, and then obtained footage of a large woodpecker that has several characteristics that are consistent with the Ivory-billed Woodpecker but not the Pileated Woodpecker; at points when the camera was drifting around, I was trying to spot the bird in binoculars; at points when the camera was zooming in and out, I was trying to spot the bird through the viewfinder. A short distance up the same bayou in 2008, I was keeping watch out over the treetops from a tall cypress that was used as an observation platform, when an Ivory-billed Woodpecker flew up the bayou and passed nearly directly below. While working with Geoff Hill's search team in Florida in 2007, I came upon a pair of Ivory-billed Woodpeckers during a follow-up to a sighting the day before; the birds repeatedly made spectacular swooping flights during an encounter that lasted more than 20 minutes; at points when the camera is aimed at my feet in the kayak, I was trying to spot the birds in binoculars. Although some of the evidence is visible in these movies, much better presentations of the evidence are available in the related articles.

opencc-by-4.0Feb 2023View details →

Rates of greenhouse gas (carbon dioxide, methane and nitrous oxide) fluxes, denitrification-derived N2O and N2 fluxes and nitrification-derived N2O fluxes from salt marsh soils in Quebec, Canada and Louisiana, U.S. under ambient and elevated temperature and nutrient loading.

Dataset used in <a href="https://link.springer.com/article/10.1007/s10533-023-01104-0?utm_source=rct_congratemailt&utm_medium=email&utm_campaign=oa_20231214&utm_content=10.1007/s10533-023-01104-0#citeas">Elevated temperature and nutrients lead to increased N2O emissions from salt marsh soils from cold and warm climates</a>. The dataset contains fluxes calculated from headspace gas samples taken over a 24 hour period from intact soil cores, as well as corresponding environmental data. Intact soil cores (0-15 cm depth, 2.5 cm diameter) were taken at five sampling locations along a 20 m transect using a soil auger or piston corer. Samples were collected along a transect in four marsh sites in Quebec, Canada (La Pocatière: 47°22'24.7"N 70°03'26.3"W) and Louisiana, U.S. (Barataria Basin: 29°33'47.3"N 90°04'22.8"W and 29°29'52.2"N 89°55'00.2"W) from two vegetation types (Sporobolus alterniflorus formerly known as Spartina alterniflora and Sporobolus pumilus formerly known as Spartina patens). In Quebec, the two vegetation zones were in the same marsh whereas in Louisiana two separate marshes, dominated by the relevant vegetation, were chosen. Soil samples were collected on the 20-21st July 2021 from Louisiana and the 9-10th August 2021 from Quebec. Environmental data was collected including in-situ soil temperature and salinity, and gravimetric soil moisture, extractable soil dissolved organic carbon (DOC), extractable soil total dissolved nitrogen (TDN), extractable soil nitrate, extractable soil ammonium, extractable soil soluble reactive phosphate, soil total carbon, soil total nitrogen, soil carbon to nitrogen ratio, soil d13C and soil d15N determined from additional 0-15 cm core samples. This project has received funding from the European Union’s Horizon 2020 Research and Innovation Programme under Grant Agreement no. 838296, a NSERC Discovery Grant and a Natural Environment Research Council grant number (NE/T012323/1). Stable 15N tracers were added to the intact soil cores so that at each location, at each treatment level (ambient and elevated, described below), there was one core receiving no tracer for greenhouse gas fluxes, one core receiving 15N-NO3‑ for denitrification rates and one core receiving 15N-NH4+ for nitrification rates. The cores were incubated at ambient temperature (16 ℃ and 28.1 ℃ for Quebec and Louisiana, respectively) and nutrient concentrations (3.2 NO3-, 2.0 NH4+; 2.9 NO3-, 2.5 NH4+; 0.5 NO3-, 7.3 NH4+ and 5.7 NO3-, 2.8 NH4+ mg g wet soil-1 for Quebec S. alterniflorus, Quebec S. pumilus, Louisiana S. alterniflorus and Louisiana S. pumilus, respectively), and elevated temperature (ambient temperature +5 ℃) and nutrient concentration (double ambient concentration). Gas samples were collected from the headspace of 0-15 cm intact cores in a 20 cm high PVC pipe, capped at the top and bottom to create a 5 cm headspace. Gas samples were analysed for greenhouse gases (GHGs: N2O, CH4, CO2) and 15N in denitrification-derived N2O, denitrification-derived N2 and nitrification-derived N2O. Soil temperature (YSI 30, Baton Rouge, USA or DeltaTrak 11050, Pleasanton, USA) and porewater salinity (YSI 30, Baton Rouge, USA or portable ATC refractometer) were measured in-situ or in the laboratory using the portable refactometer. Additional soil samples were used for multiple analyses; one subsample was extracted with ultrapure water (18.2 MΩ) for DOC and TDN analysis, one subsample was extracted with 2M KCl for NO3- and NH4+, one subsample was extracted with Olsen-P solution (0.5 M NaHCO3, pH 8.5), for soluble reactive phosphate analysis and one subsample was weighed and dried for soil moisture and then finely ground and analysed for total carbon, total nitrogen, d13C and d15N. N2O, CH4 and CO2 concentrations were measured in the gas samples using a gas chromatograph interfaced with a PAL3 autosampler (Agilent 7890A, Agilent Technologies Ltd, USA) fitted with a flame ionisation detector (FID) for CH4 analysis and a micro electron capture detector (mECD) for N2O analysis. CO2 was methanised to CH4 before analysis on the FID. The instrument precision as the relative standard deviation was < 5 % for all of the gases, while the minimum detectable concentration difference (MDCD) was 9 ppb N2O, 72 ppb CH4 and 31 ppm CO2. Potential GHG fluxes were calculated from the linear portion or where the highest production was observed in the concentration-time series ( https://doi.org/10.2134/jeq2003.2436). If fluxes were below the MDCD they were set to zero see (https://doi.org/10.1002/2017JG003783). The 15N content of the N2 and N2O was determined using a continuous flow isotope ratio mass spectrometer (Elementar Isoprime PrecisION; Elementar Analysensysteme GmbH, Hanau, Germany) coupled with a trace-gas pre-concentrator inlet with autosampler (isoFLOW GHG; Elementar Analysensysteme GmbH, Hanau, Germany), with a standard deviation of d15N < 0.05 %. Extractable dissolved organic carbon and total dissolved nitrogen were analysed in soil extractant (ultrapure water 18.2 MΩ, 7:1 of extractant to soil) on a TOC/TDN analyser (TOC VCSn + TMN-1, Shimadzu, Kyoto, Japan), with 50 mg C l-1 and 10 mg l-1 standards resulting in accuracy and precision of 0.3 and ±0.3 mg C l-1, and 0.5 and ±0.3 mg N l-1, respectively. Extractable nitrate+nitrite (assumed to be nitrate) and ammonium were analysed in soil extractant (2M KCl, 5:1 of extractant to soil) using a microplate reader and methods in Sims et al., 1995 (<a href="https://doi.org/10.1080/00103629509369298">https://doi.org/10.1080/00103629509369298</a>) with a limit of detection of 0.1 ppm and accuracy of ±5 %. Extractable phosphate was analysed in soil extractant (Olsen-P solution 0.5M NaHCO3, pH 8.5, 10:1 of extractant to dry soil) using a microplate reader and methods in Jeannotte et al., 2004 (https://doi.org/10.1007/s00374-004-0760-4) with a limit of detection of 1 mg P l-1 and accuracy of ±6 %. Soil total carbon, total nitrogen, d13C and d15N analysis was performed using a continuous flow isotope ratio mass spectrometer (Elementar Isoprime PrecisION; Elementar Analysensysteme GmbH, Hanau, Germany) coupled with an elemental analyser (EA) inlet (vario PYRO cube; Elementar Analysensysteme GmbH, Hanau, Germany). The precision was < 5 % for both C and N and the precision as a standard deviation was < 0.06 % for both d13C and d15N. Results from the experiments were entered into an Excel spreadsheet for ingestion into the Zenodo data repository.

dryad40/100

Planform change and Fundulus SNP data for small watersheds in South Mississippi and Louisiana

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publicApr 2024View details →

dryad40/100

Urban land use impact on soil heavy metal levelsin Lafayette, Louisiana

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publicDec 2025View details →

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Pathogenic Leptospira isolated from rodents in New Orleans, Louisiana USA, and associated site information

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publicOct 2020View details →

dryad36/100

Data from: An invasive insect, hemlock woolly adelgid, indirectly impacts Louisiana Waterthrush nest site selection and nest survival in the southern Appalachians

Eastern hemlock (Tsuga canadensis) is declining throughout the eastern United States due to hemlock woolly adelgid (Adelges tsugae Annand), an invasive insect from Asia. In the southern Appalachians, hemlock is concentrated in moist ravines and its decline threatens riparian ecosystems. Previous research on this invasion has focused on adelgid control and how hemlock decline affects community composition or forest processes; few studies have evaluated the consequences for demography of obligate riparian species. The Louisiana Waterthrush (Parkesia motacilla) is an obligate riparian species that could be sensitive to hemlock condition in this region, but how individuals respond to decline is currently unknown. To address this knowledge gap, we leveraged recent adelgid treatment efforts in Great Smoky Mountains National Park to evaluate the relationship(s) between hemlock decline and waterthrush habitat selection (foraging and nest site) and vital rates (nest and adult survival). We found that hemlock decline was unrelated to foraging habitat selection and apparent adult survival, but was related to nest site selection through an interaction with percent ground cover of exposed live tree roots: birds selected for nest sites in areas with more exposed live roots but only when hemlock were in poor condition. Nest survival was lower in areas where deciduous species (vs. evergreen species) dominated the understory, suggesting that adelgid invasion could indirectly impact waterthrush fitness depending on how vegetative succession proceeds following hemlock decline. Our results suggest that the short-term consequences of adelgid invasion on this riparian avian species are minimal in this area, but these relationships are likely dynamic and dependent on local habitat features and the predator community response to hemlock decline.Eastern hemlock (Tsuga canadensis) is declining throughout the eastern United States due to hemlock woolly adelgid (Adelges tsugae Annand), an invasive insect from Asia. In the southern Appalachians, hemlock is concentrated in moist ravines and its decline threatens riparian ecosystems. Previous research on this invasion has focused on adelgid control and how hemlock decline affects community composition or forest processes; few studies have evaluated the consequences for demography of obligate riparian species. The Louisiana Waterthrush (Parkesia motacilla) is an obligate riparian species that could be sensitive to hemlock condition in this region, but how individuals respond to decline is currently unknown. To address this knowledge gap, we leveraged recent adelgid treatment efforts in Great Smoky Mountains National Park to evaluate the relationship(s) between hemlock decline and waterthrush habitat selection (foraging and nest site) and vital rates (nest and adult survival). We found that hemlock decline was unrelated to foraging habitat selection and apparent adult survival, but was related to nest site selection through an interaction with percent ground cover of exposed live tree roots: birds selected for nest sites in areas with more exposed live roots but only when hemlock were in poor condition. Nest survival was lower in areas where deciduous species (vs. evergreen species) dominated the understory, suggesting that adelgid invasion could indirectly impact waterthrush fitness depending on how vegetative succession proceeds following hemlock decline. Our results suggest that the short-term consequences of adelgid invasion on this riparian avian species are minimal in this area, but these relationships are likely dynamic and dependent on local habitat features and the predator community response to hemlock decline.

opencc-zeroJun 2021View details →

opencc-byAug 2022View details →

Rosenwald School, St Joseph, Louisiana

A photogrammetric model of an abandoned Rosenwald School in St Joseph, Louisiana. [WIKI](hhttps://en.wikipedia.org/wiki/Rosenwald_School) Source: Objaverse 1.0 / Sketchfab

opencc-by-4.0Mar 2022View details →

A Dataset of Dropout Rates and Other School-Level Variables in Louisiana Public High Schools

This massive dataset of school variables covering a duration of five academic years (2014-15 to 2018-19) was originally compiled with the intention of identifying the factors that correlate with high school dropout in Louisiana public high schools, specifically. However, it can be useful to any researchers interested in analyzing school-level data concerning a wide range of variables beyond merely dropout rates. This dataset also contains socioeconomic demographics, financial variables, class size, and much more.

opencc-by-4.0Jul 2021View details →

Development of Cost-Effective High-Modulus Asphalt 5. Report Date Aug. 2021 Concrete (HMAC) Mixtures Using Crumb Rubber and Local Construction Materials in Louisiana

One of the emerging solutions to enhance the durability of asphalt pavements is the use of a French asphalt mix known as “High-Modulus Asphalt Concrete (HMAC).” This mix uses a hard asphalt binder, high binder content (about 6%), and low air voids content as compared to Superpave mixtures. The key objective of this study was to develop a cost-effective HMAC mixture using crumb rubber and local materials in Louisiana. To achieve this objective, four HMAC mixtures were prepared using two asphalt binders (PG 82-22 and PG 76-22 plus 10% crumb rubber) and two Reclaimed Asphalt Pavement (RAP) contents (20% and 40%); additionally, a conventional Superpave mixture in Louisiana was prepared as a control mixture. The laboratory performance of these five mixtures was evaluated in terms of workability, dynamic modulus, rutting resistance, and cracking resistance. The AASHTOWare Pavement ME Design software was also used to estimate the long-term field performance of these mixtures. Results indicated that the HMAC mixture prepared with 10% crumb rubber and 20% RAP successfully met the French mix design specifications for HMAC and LaDOTD specifications. This HMAC mix outperformed the control Superpave mix in terms of dynamic modulus, rutting resistance, and cracking resistance. Additionally, this HMAC mixture can reduce the required asphalt thickness by 1.5 or 2 inches based on traffic level. The cost-effectiveness analysis indicated that this HMAC mixture was more costeffective than conventional Superpave mixtures in Louisiana. In addition, this mixture is environmentallyfriendly since it can reduce the disposal of scrap tires in landfills.