Find research datasets worth reusing

opencc-by-4.0Apr 2020View details →

Fig. 26 in The non-native freshwater fishes of Singapore: an annotated compilation

Fig. 26. Esomus metallicus, ca. 40 mm SL, trade material (note the diagnostic character of long barbels).

opencc-by-4.0Apr 2020View details →

Fig. 48. Gyrinocheilus aymonieri, 136.0 in The non-native freshwater fishes of Singapore: an annotated compilation

Fig. 48. Gyrinocheilus aymonieri, 136.0 mm SL, trade material (top); 117.4 mm SL, xanthic variety, Bedok Reservoir (bottom).

Fig. 6 in Spatio-temporal segregation and size distribution of fish assemblages as related to non-native species occurrence in the middle rio Doce Valley, MG, Brazil

Fig. 6. Least-square means and 95% confidence intervals from ANCOVA of the first three environmental factors from PCA. Different markers represent significantly different means as detected by planned contrasts with 5% significance level, first comparing lakes with any non-native species with those without them, and then comparing the two categories of lakes with non-natives (non-piscivores vs. piscivores).

Fig. 4 in Spatio-temporal segregation and size distribution of fish assemblages as related to non-native species occurrence in the middle rio Doce Valley, MG, Brazil

Fig. 4. Scatterplot of species body size (mean standard length) vs. a relative index of native affinity to lakes containing piscivorous invaders (the proportion of biomass of a given native species in lakes with piscivorous invaders). The estimated regression line is also presented (Y = 0.044*X - 0.279; R2 = 0.443; p = 0.007). Species codes: ast = Astyanax sp.; aus = Australoheros facetus; cyp = Cyphocharax gilbert; cre = Crenicichla lacustris; geo = Geophagus brasiliensis; gym = Gymnotus gr. carapo; hop = Hoplias malabaricus; lep = Leporinus steindachneri; lor = Loricariidae (unidentified species); lyc = Lycengraulis sp.; moe = Moenkhausia doceana; oli = Oligosarcus solitarius; pac = Pachyurus adspersus; pro = Prochilodus vimboides; tra = Trachelyopterus striatulus.

Fig. 5 in Spatio-temporal segregation and size distribution of fish assemblages as related to non-native species occurrence in the middle rio Doce Valley, MG, Brazil

Fig. 5. Least-square means and 95% confidence intervals from ANCOVA of mean individual size and temporal turnover as related to the three lake categories. Different markers represent significantly different means as detected by planned contrasts with 5% significance level, first comparing lakes with any non-native species with those without them, and then comparing the two categories of lakes with non-natives (non-piscivores vs. piscivores).

Fig. 2 in Spatio-temporal segregation and size distribution of fish assemblages as related to non-native species occurrence in the middle rio Doce Valley, MG, Brazil

Fig. 2. Alpha (mean) and beta richness. a) Comparison among the temporal and spatial components of richness. b) Species richness for each lake. The alpha (mean) and beta richness were taken along the temporal component. Lake codes: No = Nova; Ca = Capim; Fe = Ferrugem; Cr = Crentes; Po = Poço Redondo; Ro = Romoalda; Ti = Timburé; Ag = Águas Claras; Pa = Palmeirinha; Ar = Ariranha. "Natives" represents lakes without non-native species; "Non-piscivores" represents lakes with non-piscivorous non-native species; "Piscivores" represents lakes with invasive piscivorous species.

opencc-by-4.0Sep 2021View details →

Data from: All-season space use by non-native resident Mandarin Ducks (Aix galericulata) in northeastern Germany

Data from article "All-season space use by non-native resident Mandarin Ducks (Aix galericulata) in northeastern Germany", accepted for publication in Journal of Ornithology in 2021. Article abstract: Patterns of space use are often subject to large temporal and individual-level variation, due to seasonality in behaviour and environmental conditions as well as age- or sex-specific needs. Especially in temperate regions, seasonality likely influences space use even in non-migratory birds. In waterfowl of the family Anatidae, however, few studies have analyzed space use of the same individuals across the full annual cycle. We used a resident population of Mandarin Ducks (Aix galericulata) in northeast Germany to study their year-round space use in relation to season, sex, and age. We marked 172 birds with colour rings and surveyed relevant water bodies for re-encounters for several years. As space-use patterns we derived home ranges from minimum convex polygons and the number of water bodies used by individual birds. Our analysis revealed that individuals shifted their space use between seasons, in particular extending their home ranges during the non-breeding season. Between years, in contrast, birds tended to show season-specific site fidelity. Sex differences were apparent during both breeding and non-breeding season, male consistently having larger home ranges and using slightly more water bodies. No difference was found between first-year and adult birds. Our study demonstrates that mark-resighting can provide valuable information about space use in species with suitable behaviour and readily accessible habitat. In such cases, it may be a valid alternative to more expensive GPS-tracking or short-term manual radio telemetry, particularly within citizen-science projects. Data description: Mark-resight data on Mandarin ducks in the Potsdam/Berlin region, Germany. Each sighting (including capture and ringing event) contains information about: - individual with sex and age specification  - date, season, sub-season as defined in article - coordinates of sighting location: Gauss-Krüger coordinate system with right (R; Rechtswert) and high (H; Hochwert) value. For distinction between "fine" and "coarse" coordinates, see article. Water body names refer to the "coarse" site specification.

FIG. 4 in Terrestrial macro-arthropods of the sub-Antarctic islands of Possession (Crozet Archipelago) and Kerguelen: inventory of native and non-native species

FIG. 4. — Some indigeneous arthropod species: Diptera: A, Telmatogeton amphibius (Eaton, 1875); B, Amalopteryx maritima Eaton, 1875; Hymenoptera: C, Kleidotoma icarus (Quinlan, 1964); Coleoptera: D, Antarctotachinus crozetensis Enderlein, 1909; Hemiptera: E, Phthirocoris antarcticus Enderlein, 1904; Lepidoptera: F, Pringleophaga kerguelensis Enderlein, 1905. Photos: Bernard Chaubet.

FIG. 1 in Terrestrial macro-arthropods of the sub-Antarctic islands of Possession (Crozet Archipelago) and Kerguelen: inventory of native and non-native species

FIG. 1. — The South Indian Ocean sub-Antarctic islands, with details of Kerguelen Island (A) and Possession Island (B, in Crozet archipelago). Modified from D. Fourcy, Inrae, 2020.

FIG. 3 in Terrestrial macro-arthropods of the sub-Antarctic islands of Possession (Crozet Archipelago) and Kerguelen: inventory of native and non-native species

FIG. 3. — Some indigeneous arthropod species: Arachnida: A, Hahnia crozetensis Hickman, 1939; B, Myro paucispinosus Berland, 1947; Coleptera: C, Ectemnorhinus viridis G. R. Waterhouse, 1853; D, Palirhoeus eatoni (C. O. Waterhouse, 1876); E, Amblystogenium pacificum (Putzeys, 1869); F, Meropathus chuni Enderlein, 1901; Diptera: G, Calycopteryx moseleyi Eaton, 1875; H, Anatalanta aptera Eaton, 1875. Photos: Bernard Chaubet.

FIG. 2 in Terrestrial macro-arthropods of the sub-Antarctic islands of Possession (Crozet Archipelago) and Kerguelen: inventory of native and non-native species

FIG. 2. — Some typical habitats of sub-Antarctic islands: A, wide open valley; B, wet coastal cliffs; C, slopes covered with Acaena magellanica; D, fell field; E, native vegetation; F, introduced vegetation; G, coastal slopes and foreshore; H, marine animal colonies. Photos: Maurice Hullé.

openother-openMar 2023View details →

NNS-500 Acceptability judgment task dataset based on the sentences written by non-native English speakers

Acceptability judgment task (AJT): AJT is a common method in empirical linguistics to gather information about the internal grammar of speakers of a language, which is considered a promising area to evaluate neural language models' linguistic knowledge. There is a Corpus of Linguistic Acceptability (CoLA) whose creators think Boolean judgments sufficient; similarly, some non-English resources cast acceptability as a binary classification task. Dataset: NNS-500 dataset based on the sentences written by non-native speakers (which is important from the point of view of the source of unacceptable sentences) and labelled by a university English teacher is intended for testing the pre-trained neural networks. It has 350 acceptable and 150 unacceptable sentences, which is 70% of acceptability (this compares to 69.2% in the CoLA out-of-domain set). The dataset markup includes standard data: id number, sentence, indication of acceptability – 1, indication of unacceptability – 0, type of error (morphology, syntax, semantics), and detailed information about the source (group number with the year of admission to the university, number according to list of the group members, and gender of the student). For the use of the assessment of EFL learners' linguistic competence, the first 100 sentences of the dataset (id 1‒100) include the ones written by the study group with a high level of academic performance (Group A) and another 100 sentences of the dataset (id 101‒200) are taken from the writing assignments of students with a poor academic performance (Group B). From each group of students, 5 people were selected (a total 10 participants); 20 sentences were randomly selected from each student's written work (14 ‒ unacceptable, 6 ‒ acceptable); there are more sentences with errors, since they are very important for the error analysis. The rest of the dataset consists of 290 acceptable and 10 unacceptable sentences (id 201‒500) taken from the works of students of different study groups of an intermediate level.

opencc-by-4.0Mar 2023View details →

Quantifying the diets of a non-native and native predator during juvenile salmon out-migrations in the Columbia River

This is the clean and raw data files needed to replicate the analysis for our paper. The data contains carbon and nitrogen stable isotope data from several species of fish collected in the upper John Day Reservoir in Washington State in 2012. The data contains stable isotope signatures from predatory Walleye and Northern Pikeminnow, as well as potential prey species. A spreadsheet with descriptions of the column names is included.  All of the code and analysis can be found at Karl Veggerby's Github: https://github.com/veggerk/Columbia-River-predatory-fish-study

dryad40/100

Climate and non-native herbivores influence reproductive investment by Greater Sage-grouse

Highly seasonal environments can increase competition among herbivores for nutrients, leading to consequences affecting rates of reproduction and survival. There is concern about the impacts of non-native ungulates on Greater Sage-grouse in the Great Basin of North America. We estimated nesting propensity, the annual proportion of females attempting a nest, for Greater Sage-grouse in relation to the abundance of ungulates using 7 years of data from the northwestern Great Basin, USA. We focused on nesting because it is the necessary first major investment required for the production of new recruits. We used a Bayesian multi-stratum model to investigate the effects of weather and sympatric non-native herbivores, free-roaming horses and domestic cattle, on reproductive rates and female survival of adult and yearling sage-grouse. Adults nested at a higher rate (0.931, 95% CI, 0.904 – 0.953) than yearlings (0.867, 95% CI, 0.802 – 0.922) under average conditions of all other covariates. If the first nest failed, renesting rates were similar between adults (0.349, 95% CI, 0.292 – 0.410) and yearlings (0.353, 95% CI, 0.217 – 0.507). Females in better body condition at the start of the season nested at higher rates, and moderately snowy winters led to the highest nesting propensity during the following spring. Drier conditions led to low rates of nesting, particularly in areas with dense cattle grazing. Female survival was lower for nesting females, indicating a survival cost of reproduction. Areas with abundant free-roaming horses had slightly higher nesting propensity, though other research suggests negative impacts later in the breeding cycle. Sage-grouse face life-history trade-offs that may be shifting due to changing climatic conditions. Our work suggests that the effects of competition with non-native ungulates on sage-grouse life-histories may be exacerbated by adverse weather.

opencc-zeroMar 2023View details →

opencc-by-4.0Mar 2023View details →

CS8 Native and non-native Oyster cultivation - Ecosystem service valuation in Brazil 2023

This dataset relies on data collect from D6.2, Agricultural Research and Rural Extension Company of Santa Catarina State (EPAGRI) and available literature. The purpose is to monetarily valuate the ecosystem services and disservices generated by oyster aquaculture in Southern Brazil. Data is presented in terms of productivity (t/year), nutrient retention and emission (kg/t) and economic value (€/year).

Fig. 47 in The non-native freshwater fishes of Hong Kong: diversity, distributions, and origins

Fig. 47. Poecilia sphenops (melanistic variety), Lam Tsuen River, note damaged dorsal fin, photographed by Chun Hin Wan.

Fig. 53 in The non-native freshwater fishes of Hong Kong: diversity, distributions, and origins

Fig. 53. Distribution of non-native freshwater fish species in Hong Kong. Each record was location and species-specific, which means that multiple records of one species in the same locality were represented only once in the heatmap. In total there are 999 locality records for 93 species (two species have unknown distribution) and five hybrids.

Fig. 52 in The non-native freshwater fishes of Hong Kong: diversity, distributions, and origins

Fig. 52. First records of non-native freshwater fish species from 1930 to 2022 and their suspected introduction sources.

Fig. 48. Xiphophorus hellerii, 34.8 in The non-native freshwater fishes of Hong Kong: diversity, distributions, and origins

Fig. 48. Xiphophorus hellerii, 34.8 mm SL female (top), 35.1 mm SL male (middle), Wong Lung Hang Stream, 38.8 mm SL redvariety male (bottom), Tai Po Kau Nature Reserve.

Fig. 59 in The non-native freshwater fishes of Hong Kong: diversity, distributions, and origins

Fig. 59. Gobiopterus cf. macrolepis, non-native specimen (top), Tai Lam Chung Reservoir, native specimen (female with eggs) (bottom), Kam Tin River.