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.
176
datasets available to search
ShareScore release 0.9.0
Dataset results
176 results for “climatic gradient”
Data from: The role of bryophytes for tree seedling responses to winter climate change: implications for the stress gradient hypothesis
1.When tree seedlings establish beyond the current tree line due to climate warming, they encounter existing vegetation, such as bryophytes that often dominate in arctic and alpine tundra. The stress gradient hypothesis (SGH) predicts that plant interactions in tundra become increasingly negative as climate warms and conditions become less harsh. However, for seedlings climate warming might not result in lower winter stress, if insulating snow cover is reduced. 2.We aimed to understand to if bryophytes facilitate seedling survival in a changing winter climate and if these effects of bryophytes on tree seedlings comply with the SGH along elevational gradients under contrasting snow conditions. 3.In the Swedish subarctic, we transplanted intact bryophyte cores covered by each of three bryophyte species and bryophyte-free control soil from above the tree line to two field common-garden sites, representing current and future tree line air temperature conditions (i.e. current tree line elevation and a lower, warmer, elevation below the tree line). We planted seedlings of Betula pubescens and Pinus sylvestris into these cores and subjected them to experimental manipulation of snow cover during one winter. 4.In agreement with the SGH, milder conditions caused by increased snow cover enhanced the generally negative or neutral effects of bryophytes on seedlings immediately after winter. Further, survival of P. sylvestris seedlings after one full year was higher at lower elevation, especially when snow cover was thinner. However, in contrast with the SGH, impacts of bryophytes on over-winter survival of seedlings did not differ between elevations, and impacts on survival of B. pubescens seedlings after one year was more negative at lower elevation. Bryophyte species differed in their effect on seedling survival after winter, but these differences were not related to their insulating capacity. 5.Synthesis: Our study demonstrates that interactions from bryophytes can modify the impacts of winter climate change on tree seedlings, and vice versa. These responses do not always comply with SGH, but could ultimately have consequences for large-scale ecological processes such as tree-line shifts. These new insights need to be taken into account in predictions of plant species responses to climate change.
Data from: Convergence of soil nitrogen isotopes across global climate gradients
Quantifying global patterns of terrestrial nitrogen (N) cycling is central to predicting future patterns of primary productivity, carbon sequestration, nutrient fluxes to aquatic systems, and climate forcing. With limited direct measures of soil N cycling at the global scale, syntheses of the 15N:14N ratio of soil organic matter across climate gradients provide key insights into understanding global patterns of N cycling. In synthesizing data from over 6000 soil samples, we show strong global relationships among soil N isotopes, mean annual temperature (MAT), mean annual precipitation (MAP), and the concentrations of organic carbon and clay in soil. In both hot ecosystems and dry ecosystems, soil organic matter was more enriched in 15N than in corresponding cold ecosystems or wet ecosystems. Below a MAT of 9.8°C, soil δ15N was invariant with MAT. At the global scale, soil organic C concentrations also declined with increasing MAT and decreasing MAP. After standardizing for variation among mineral soils in soil C and clay concentrations, soil δ15N showed no consistent trends across global climate and latitudinal gradients. Our analyses could place new constraints on interpretations of patterns of ecosystem N cycling and global budgets of gaseous N loss.
Data from: Adaptive genetic potential and plasticity of trait variation in the foundation prairie grass Andropogon gerardii across the US Great Plains' climate gradient: Implications for climate change and restoration
<p>Plant response to climate depends on a species' adaptive potential. To address this, we used reciprocal gardens to detect genetic and environmental plasticity effects on phenotypic variation and combined with genetic analyses. Four reciprocal garden sites were planted with three regional ecotypes of <i>Andropogon gerardii</i>, a dominant Great Plains prairie grass, using dry, mesic, wet ecotypes originating from western KS to Illinois that span 500 to 1,200 mm rainfall year<sup>-1</sup>. We aimed to answer: (1) What is the relative role of genetic constraints and phenotypic plasticity in controlling phenotypes? 2) When planted in the home site, is there a trait syndrome for each ecotype? 3) How are genotypes and phenotypes structured by climate? (4) What are implications of these results for response to climate change and use of ecotypes for restoration? Surprisingly, we did not detect consistent local adaptation. Rather, we detected co-gradient variation primarily for most vegetative responses. All ecotypes were stunted in western KS. Eastward, the wet ecotype was increasingly robust relative to other ecotypes. In contrast, fitness showed evidence for local adaptation in wet and dry ecotypes with wet and mesic ecotypes producing little seed in western KS. Earlier flowering time in the dry ecotype suggests adaptation to end of season drought. Considering ecotype traits in home site, the dry ecotype was characterized by reduced canopy area and diameter, short plants, and low vegetative biomass and putatively adapted to water limitation. The wet ecotype was robust, tall with high biomass and wide leaves putatively adapted for the highly competitive, light-limited Eastern Great Plains. Ecotype differentiation was supported by random forest classification and PCA. We detected genetic differentiation and outlier genes associated primarily with precipitation. We identified candidate gene GA1 for which allele frequency associated with plant height. Sourcing of climate adapted ecotypes should be considered for restoration.</p>
Data from: Pace-of-life in a social insect: behavioral syndromes in ants shift along a climatic gradient
Behavioral syndromes are correlations between behavioral traits, but their selective advantage under different environmental conditions is not well understood. Here, we used the pace-of-life hypothesis to predict how behavioral syndromes could vary along climatic gradients. This hypothesis states that populations experiencing different ecological conditions should differ in suites of physiological characteristics associated with behavioral and life-history traits. We examined the persistence of behavioral syndromes at multiple levels in the ant Temnothorax longispinosus along a climatic gradient in north-eastern USA. "Across populations", we predicted that proactive phenotypes, which show higher activity, aggression and exploration, are more likely to persist in warmer climates. "Within populations", we expected positive associations among proactive behaviors to be more pronounced at warmer sites. Additionally, we measured colony productivity to test whether deviation from the population-level syndrome influences their success, and whether such deviations could vary among populations. Behavioral syndromes clearly occurred across populations, with colonies from warmer environments exhibiting more exploration and foraging but slightly less aggressiveness than colonies from colder sites. However, the presence of behavioral syndromes within sites was population-specific. Positive associations between foraging, exploration and aggression, albeit rarely found, were more pronounced at the warmest sites, whereas negative associations were more common at colder sites. Furthermore, colonies from colder environments showed higher syndrome deviations than colonies from warmer environments, which may be linked to resource limitation and may also negatively affect colony productivity. This study partially corroborates the pace-of-life hypothesis and yields insights into the adaptive value of behavioral syndromes along climatic gradients.
Wheat field earthworms under divergent farming systems across a European climate gradient
<p>Earthworm community metrics data collected during the years 2019 and 2020 from organically and conventionally managed wheat fields (188 fields in total) in nine pedo-climatic zones of Europe, together with associated site information on climate, soil properties and agricultural management of the fields.</p>
Data from: Habitat hotspots of common and rare tropical species along climatic and edaphic gradients
1. Understanding coexistence in high biodiversity ecosystems requires knowledge of how rare and common species share the multidimensional environmental space. Climatic and edaphic conditions can provide a plethora of habitats, supporting different compositional and structural communities where species can adapt and differentiate. 2. We used a large dataset consisting of 580 tropical tree species sampled in 163 25×25 m quadrats along an altitudinal gradient covering an area of 160 km2 of tropical rainforest in Jianfengling reserve (Hainan Island, China). For each plot the data include tree species and abundance, altitude and six soil properties from which a two dimensional environmental space was constructed. 3. With this extensive dataset we tested the hypothesis that different combination of environmental factors can generate multiple hotspots on three axes of diversity: species richness, Shannon-equivalent species richness and habitat preference, a measure of evenness in the distribution of individuals across an environmental gradient. 4. We found that humid and cool areas with more nitrogen availability were occupied by richer and more diverse communities of wide range species. Rare (in terms of number of individuals) and range restricted species instead, tended to prefer minor habitats, generally warmer with high potassium, calcium, magnesium and, in particular, phosphorous. As a result, wide and range restricted species were segregated across the environmental space. 5. Synthesis. Our findings indicate rare species tend to occur more frequently where common species are less abundant. A clear pattern of species richness and diversity was driven by a combination of several environmental factors (soil properties and climate). The complexity of the environment not only explains the different species distribution along each habitat, but also determines the relative abundance of each species in the entire community. Although some habitats have low species richness and diversity, they are highly preferred by rare species; therefore biodiversity conservation efforts should consider protecting these fragile ecosystems.
Data from: Convergence of soil nitrogen isotopes across global climate gradients
Open the record for dataset details and reuse information.
Data from: Pace-of-life in a social insect: behavioral syndromes in ants shift along a climatic gradient
Open the record for dataset details and reuse information.
Data from: The role of bryophytes for tree seedling responses to winter climate change: implications for the stress gradient hypothesis
Open the record for dataset details and reuse information.
Data from: Habitat hotspots of common and rare tropical species along climatic and edaphic gradients
Open the record for dataset details and reuse information.
Data from: Adaptive genetic potential and plasticity of trait variation in the foundation prairie grass Andropogon gerardii across the US Great Plains’ climate gradient: Implications for climate change and restoration
Open the record for dataset details and reuse information.
Data from: Association of genetic and climatic variability in giant sequoia, Sequoiadendron giganteum, reveals signatures of local adaptation along moisture-related gradients
Open the record for dataset details and reuse information.
Data used to generate results for Meireles et al. 2024. The Miners of South America: impacts of climate change on the distribution of Geositta miners along elevational gradients
<p><span>Data used to generate results for Meireles et al. 2024. The Miners of South America: impacts of climate change on the distribution of <em>Geositta miners</em> along elevational gradients </span></p> <p><span> </span><span>Here we included all the data used in this paper.</span></p> <p><strong><span>Table1</span></strong><span>. Occurrence records for the seven species of <em>Geositta</em> miners, their elevation and climate suitability values per record for the present and future in different climate models (GCM: MPI-ESM1-2-HR and MRI-ESM2-0) and different scenarios (Optimistic: ssp245 and Pessimistic: ssp585).</span></p>
Hawaiian picture wing Drosophila sproati exhibit adaptive population divergence along a narrow climatic gradient on Hawaii Island
GEO Series GSE122959. Drosophila sproati; Drosophila grimshawi. 44 samples. Type: Expression profiling by array.
Genetic variation in feral hemp populations across the Nebraska climate gradient
GEO Series GSE182464. Cannabis sativa. 6 samples. Type: Expression profiling by high throughput sequencing.
Intercropping stabilizes annual food production across a geographic and climate gradient
Open the record for dataset details and reuse information.
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.