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518 results for “cycling data”
Data from: Demographic and spatiotemporal patterns of avian influenza infection at the continental scale, and in relation to annual life cycle of a migratory host
Since the spread of highly pathogenic avian influenza (HPAI) H5N1 in the eastern hemisphere, numerous surveillance programs and studies have been undertaken to detect the occurrence, distribution, or spread of avian influenza viruses (AIV) in wild bird populations worldwide. To identify demographic determinants and spatiotemporal patterns of AIV infection in long distance migratory waterfowl in North America, we fitted generalized linear models with binominal distribution to analyze results from 13,574 blue-winged teal (Anas discors, BWTE) sampled in 2007 to 2010 year round during AIV surveillance programs in Canada and the United States. Our analyses revealed that during late summer staging (July-August) and fall migration (September-October), hatch year (HY) birds were more likely to be infected than after hatch year (AHY) birds, however there was no difference between age categories for the remainder of the year (winter, spring migration, and breeding period), likely due to maturing immune systems and newly acquired immunity of HY birds. Probability of infection increased non-linearly with latitude, and was highest in late summer prior to fall migration when densities of birds and the proportion of susceptible HY birds in the population are highest. Birds in the Central and Mississippi flyways were more likely to be infected compared to those in the Atlantic flyway. Seasonal cycles and spatial variation of AIV infection were largely driven by the dynamics of AIV infection in HY birds, which had more prominent cycles and spatial variation in infection compared to AHY birds. Our results demonstrate demographic as well as seasonal, latitudinal and flyway trends across Canada and the US, while illustrating the importance of migratory host life cycle and age in driving cyclical patterns of prevalence.
Data from: Nest signature changes throughout colony cycle and after social parasite invasion in social wasps
Social insects recognize their nestmates by means of a cuticular hydrocarbon signature shared by colony members, but how nest signature changes across time has been rarely tested in longitudinal studies and in the field. In social wasps, the chemical signature is also deposited on the nest surface, where it is used by newly emerged wasps as a reference to learn their colony odor. Here, we investigate the temporal variations of the chemical signature that wasps have deposited on their nests. We followed the fate of the colonies of the social paper wasp Polistes biglumis in their natural environment from colony foundation to decline. Because some colonies were invaded by the social parasite Polistes atrimandibularis, we also tested the effects of social parasites on the nest signature. We observed that, as the season progresses, the nest signature changed; the overall abundance of hydrocarbons as well as the proportion of longer-chain and branched hydrocarbons increased. Where present, social parasites altered the host-nest signature qualitatively (adding parasite-specific alkenes) and quantitatively (by interfering with the increase in overall hydrocarbon abundance). Our results show that 1) colony odor is highly dynamic both in colonies controlled by legitimate foundresses and in those controlled by social parasites; 2) emerged offspring contribute little to colony signature, if at all, in comparison to foundresses; and 3) social parasites, that later mimic host signature, initially mark host nests with species-specific hydrocarbons. This study implies that important updating of the neural template used in nestmate recognition should occur in social insects.
Data from: Contrasting definitive hosts as determinants of the genetic structure in a parasite with complex life cycle along the Southeastern Pacific
The spatial genetic structure (and gene flow) of parasites with complex life cycles, such as digeneans, has been attributed mainly to the dispersion ability of the most mobile host, which most often corresponds to the definitive host (DH). In this study, we compared the genetic structure and diversity of adult Neolebouria georgenascimentoi in two fish species (DHs) that are extensively distributed along the Southeastern Pacific (SEP). The analysis was based on the cytochrome oxidase subunit I gene sequences of parasites collected between 23°S and 45°S. In total, 202 sequences of N. georgenascimentoi in Pinguipes chilensis isolated from 9 sites and 136 sequences of Prolatilus jugularis from 5 sites were analyzed. Our results showed that N. georgenascimentoi is a species complex that includes three different parasite species; however, in this study, only group 1 and 2 found in P. chilensis and P. jugularis, respectively, were studied because they are widely distributed along the coastline. Group 1 parasites had two common haplotypes with wide distribution and unique haplotypes in northern sites. Group 2 had only one common haplotype with wide distribution and a large number of unique haplotypes with greater genetic diversity. Both groups have experienced recent population expansion. Only group 1 exhibited a genetic structure that was mainly associated with a biogeographic break at approximately 30°S along the SEP. Our finding suggests that host access to different prey (=intermediate hosts) could affect the genetic structure of the parasite complex discovered here. Consequently, difference between these patterns suggests that factors other than DH dispersal are involved in the genetic structure of autogenic parasites.
Data from: Diversity and distribution of Wolbachia in relation to geography, host plant affiliation and life cycle of a heterogonic gall wasp
Background: The maternally inherited endosymbiont Wolbachia is widespread in arthropods and nematodes and can play an important role in the ecology and evolution of its host through reproductive manipulation. Here, we survey Wolbachia in Belonocnema treatae, a widely distributed North American cynipid gall forming wasp that exhibits regional host specialization on three species of oaks and alternation of sexually and aseuxlly reproducing generations. We investigated whether patterns of Wolbachia infection and diversity in B. treatae are associated with the insect's geographic distribution, host plant association, life cycle, and mitochondrial evolutionary history. Results: Screening of 463 individuals from 23 populations including sexual and asexual generations from all three host plants across the southern U.S. showed an average infection rate of 56% with three common Wolbachia strains: wTre1-3 and an additional rare variant wTre4. Phylogenetic analysis based on wsp showed that these strains are unrelated and likely independently inherited. We found no difference in Wolbachia infection frequency among host plant associated populations or between the asexual and sexual generations, or between males and females of the sexual generation. Partially incomplete Wolbachia transmission rates might explain the occurrence of uninfected individuals. A parallel analysis of the mitochondrial cytochrome oxidase I gene in B. treatae showed high mtDNA haplotype diversity in both infected and uninfected populations suggesting an ancestral infection by Wolbachia as well as a clear split between eastern and western B. treatae mtDNA clades with a sequence divergence of > 6%. The strain wTre1 was present almost exclusively in the western clade while wTre2 and wTre3 occur almost exclusively in eastern populations. In contrast, the same strains co-occur as double-infection in Georgia and triple-infections in two populations in central Florida. Conclusions: The diversity of Wolbachia across geographically and genetically distinct populations of B. treatae and the co-occurrence of the same strains within three populations highlights the complex infection dynamics in this system. Moreover, the association of distinct Wolbachia strains with mitochondrial haplotypes of its host in populations infected by different Wolbachia strains suggests a potential role of the endosymbiont in reproductive isolation in B. treatae.
Figs. 1–7. Formicomus pedestris, first instar larva. 1 in Description of Larvae of the Genus Formicomus Laferté, and Data on the Life Cycles of Omonadus floralis (Linné) and Notoxus monoceros (Linné) (Coleoptera: Anthicidae)
Figs. 1–7. Formicomus pedestris, first instar larva. 1) Epipharynx, dorsal (a) and ventral (b) view; 2) mandibles, dorsal view; 3) labium, dorsal (a) and ventral (b) view; 4) maxillae, ventral view; 5) antenna, dorsal view; 6) prothoracic leg, ventral view; 7) urogomphi, dorsal view.
Figs. 9–22 in Description of Larvae of the Genus Formicomus Laferté, and Data on the Life Cycles of Omonadus floralis (Linné) and Notoxus monoceros (Linné) (Coleoptera: Anthicidae)
Figs. 9–22. Formicomus ssp., Omonadus floralis and Notoxus monoceros. Scanning electron micrographs of larvae. 9) Formicomus rubricollis, ventral view of the head (343x); 10) F. gestroi, ventral view of the head (362x); 11) F. pedestris, ventral view of the head (396x); 12) F. rubricollis, antenna, ventral view (1,510x); 13) F. gestroi, antenna, ventral view (919x); 14) F. gestroi, urogomphi, ventral view (497x); 15) F. pedestris, antenna, ventral view (1,460x); 16) Omonadus floralis, ventral view of the head (110x); 17) Notoxus monoceros, dorsal view of the head (144x); 18) N. monoceros, ventral view of the head (158x); 19) O. floralis, antenna, ventral view (636x); 20) O. floralis, urogomphi, dorsal view (111x); 21) N. monoceros, antenna, dorsal view (600x); 22) N. monoceros, urogomphi, lateral view (126x).
Critical analysis of life cycle inventory datasets for organic crop production systems (Data sets)
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Coccolithus braarudii life cycle phases laboratory data (EGUSPHERE-2023-880 supplement)
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Supporting data for Dynamic manganese cycling in the Northern Gulf of Mexico
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Data for paper "The role of temperature and drying cycles on impurity deposition in drying porous media"
<p>The attached files contain the data for the paper "The role of temperature and drying cycles on impurity deposition in drying porous media" by Ellen Luckins, Chris Breward, Ian Griffiths and Colin Please, accepted for publication in Europhysics Letters (April 2024). See the READ ME file for a description of the data.</p>
Cycle data of different laboratory flow batteries based on AQDS BQDS, MV TEMPOL and vanadium flow battery
<p>Cycle data of different organic and inorganic laboratory scale redox flow batteries with an active area of 40 cm², made during the EU-Project SONAR in the years 2020 - 2023.</p>
Data from: Redesign of a life cycle figure improves student conceptions of ecology and evolution
<p>Life cycle diagrams communicate the developmental life stages of an organism. Design choices may inadvertently communicate additional information about survivorship rates, genetic variation, and microevolutionary change. In this controlled experiment, we randomly assigned one of three life cycle diagrams to 684 college students. Each figure included identical life stages of a fictitious organism's development but differed in 1) number of offspring (single or multiple) and 2) layout (cyclical or linear). Each participant could reference the figure when answering questions about organism survival, variation among offspring, and variation between generations. Students scored 21–37% higher on questions about survivorship when the available diagram included multiple offspring. Students scored 19–30% higher on questions about microevolution when the diagram layout was linear. Overall, students who received the figure with a linear layout and multiple offspring earned the highest average score (54.5%, or 3.3 of 6 questions) on the assessment, while students with the traditional figure (cyclical layout with single offspring) scored the lowest average (26.1%, or 1.6 of 6 questions). These results suggest that figure design affects student interpretations and may assist student learning about ecology and evolution concepts and common misconceptions.</p>
Supplemental Data: Deciphering the biological contributors to methane cycling in Gulf Coast wetlands
<p>File descriptions:</p> <p>Data</p> <ul> <li>Table 1: experimental design. Number of samples from each wetland, ecosite and depth. Number of reads per sample. Other measurements available for each sample.</li> <li>Tale 2: geochemistry measurements. Anions, cations, pH, salinity and depth</li> <li>Table 3: 16S feature table with SILVA taxonomy</li> <li>Table 4: feature table of methanogens and methanotrophs</li> </ul> <p>Supplemental_Figures</p> <ul> <li>Figure S1: Dissolved oxygen measured at the saltwater marsh</li> <li>Figure S2: Redox potential of soils at each ecosite</li> <li>Figure S3: Concentrations of anions and cations at each ecosite</li> <li>Figure S4: Soil pH at each ecosite</li> <li>Figure S5: Community composition at the Phylum level</li> <li>Figure S6: Correlation matrix of methane cycling taxa and environmental variables</li> <li>Figure S7: Linear discriminant analysis of methane cycling genera</li> <li>Figure S8: Relative abundance of soil methanogen and methanotroph tax across sites, ecosites, and depths</li> <li>Figure S9: Relative abundance of water column methanotroph taxa across sites, ecosites, and depths</li> </ul>
Figure 9 in Gorgocephalidae (Digenea: Lepocreadioidea) in the Indo-West Pacific: new species, life-cycle data and perspectives on species delineation over geographic range
Figure 9. Gorgocephalus kyphosi and Gorgocephalus yaaji, ex Kyphosus vaigiensis, Lizard Island, Queensland, Australia, scanning electron micrographs. A, B, oral suckers of adult Gorgocephalus kyphosi. C, tegument of adult Gorgocephalus kyphosi. D, E, oral suckers of adult Gorgocephalus yaaji. F, tegument of adult Gorgocephalus yaaji. Scale bars: A, B, D, E, 50 µm; C, F, 20 µm.
Figure 8. Gorgocephalus kyphosi, scanning electron micrographs. A in Gorgocephalidae (Digenea: Lepocreadioidea) in the Indo-West Pacific: new species, life-cycle data and perspectives on species delineation over geographic range
Figure 8. Gorgocephalus kyphosi, scanning electron micrographs. A, whole adult worm ex Kyphosus sydneyanus, Point Riley, Yorke Peninsula, South Australia. B, D, E, ventral sucker, oral sucker and tegument of A, respectively. C, oral sucker of adult worm ex Kyphosus cinerascens, Moreton Bay, Queensland, Australia. F, oral sucker of adult worm ex Kyphosus cinerascens, Rangiroa, Tuamotu Islands, French Polynesia. Scale bars: A, 400 µm; B, 30 µm; C, D, 50 µm; E, 10 µm; F, 40 µm.
Figure 7. Gorgocephalus kyphosi. A in Gorgocephalidae (Digenea: Lepocreadioidea) in the Indo-West Pacific: new species, life-cycle data and perspectives on species delineation over geographic range
Figure 7. Gorgocephalus kyphosi. A, adult voucher ex Kyphosus sydneyanus, Point Riley, Yorke Peninsula, South Australia; lateral perspective. B, genital atrium, cirrus-sac and ovarian complex of A; lateral perspective. C, redia ex Echinolittorina vidua, Lizard Island, Queensland, Australia; ventral perspective. D, emerged cercaria ex Echinolittorina vidua, Lizard Island; ventral perspective. E, adult voucher ex Kyphosus sydneyanus, Point Riley; ventral perspective. Scale bars: A, E, 500 µm; B, C, D, 250 µm.
Figure 13. Gorgocephalus graboides A in Gorgocephalidae (Digenea: Lepocreadioidea) in the Indo-West Pacific: new species, life-cycle data and perspectives on species delineation over geographic range
Figure 13. Gorgocephalus graboides A, paratype ex Kyphosus cinerascens, Lizard Island, Queensland, Australia; lateral perspective. B, genital atrium, cirrus-sac and ovarian complex of paratype; lateral perspective. C, redia ex Echinolittorina vidua, Lizard Island; ventral perspective. D, emerged cercaria ex Echinolittorina vidua, Lizard Island; ventral perspective. E, holotype ex Kyphosus cinerascens, Lizard Island; ventral perspective. Scale bars: A, E, 500 µm; B, C, D, 250 µm.
Figure 6 in Gorgocephalidae (Digenea: Lepocreadioidea) in the Indo-West Pacific: new species, life-cycle data and perspectives on species delineation over geographic range
Figure 6. Bayesian majority-rule consensus tree of the concatenated COI + ITS2 + 28S alignment. Bayesian inference (BI) posterior probabilities and maximum likelihood (ML) bootstrap support shown at nodes. A '-' symbol indicates the node was not recovered in ML analysis. The scale-bar indicates the number of substitutions per site.
Figure 11. Gorgocephalus euryaleae. A in Gorgocephalidae (Digenea: Lepocreadioidea) in the Indo-West Pacific: new species, life-cycle data and perspectives on species delineation over geographic range
Figure 11. Gorgocephalus euryaleae. A, paratype ex Kyphosus gladius, Point Peron, Rockingham, Western Australia; lateral perspective. B, genital atrium, cirrus-sac and ovarian complex of separate paratype ex Kyphosus gladius, Point Peron; lateral perspective. C, holotype ex Kyphosus gladius, Point Peron; ventral perspective. Scale bars: A, C, 500 µm; B, 250 µm.
Figure 5 in Gorgocephalidae (Digenea: Lepocreadioidea) in the Indo-West Pacific: new species, life-cycle data and perspectives on species delineation over geographic range
Figure 5. Bayesian majority-rule consensus tree of the 28S rDNA single-gene alignment. Bayesian inference (BI) posterior probabilities and maximum likelihood (ML) bootstrap support shown at nodes. A '-' symbol indicates the node was not recovered in ML analysis. The scale-bar indicates the number of substitutions per site.
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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.