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212 results for “Land use change”
Data from: The future of invasive terrestrial vertebrates in Europe under climate and land-use change
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Integrating stakeholders’ perspectives and spatial modelling to develop scenarios of future land use and land cover change in northern Tanzania
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Data from: Increased land use by Chukchi Sea polar bears in relation to changing sea ice conditions
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Data from: Climate change surpasses land use change in the contracting range boundary of a winter-adapted mammal
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Human mediated land use change drives intraspecific plant trait variation
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Data from: The abundance and distribution of guilds of riparian woody plants change in response to land use and flow regulation
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Data from: Effects of land-use change on functional and taxonomic diversity of Neotropical bats
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Land use change in the central Arizona-Phoenix area 1912 to 1995
Historic Land use change in the central Arizona-Phoenix area for the period 1912 to 1995. Map showing the progression of regional changes from 1912 to 1995
Correlation Analysis and Simulation Modeling of Land use Land Cover change and its Link with Land surface temperature
<p>The uploaded data is related to LULC modeling. Data consist of driving variables and correlation analysis between LST and NDVI in different LULC classes.</p>
Contrasting effects of land-use changes on herbivory and pollination networks
<ol> <li>Land-use changes, one of the greatest threats to global biodiversity, can cause under-appreciated effects on ecosystems by altering the structures of interspecific interaction networks. These effects have typically been explored by evaluating interaction networks composed of a single type of interaction. Therefore, it remains unclear whether the different types of interaction networks sharing the same species respond to the same land-use changes in a similar manner.</li> <li>To compare the responses of herbivory and pollination networks to land-use changes, we investigated both types of interaction networks in semi-natural grasslands categorized into three types of agricultural land-use (abandoned, extensively managed, and intensively managed) in a Japanese agricultural landscape. We quantified the structures of the interaction networks using several indices (connectance, evenness, diversity, generality, network specialization, and robustness) and compared them among different land-use types. We conducted piecewise SEM to differentiate the direct and indirect effects of land-use changes on the network structures.</li> <li>Although both land-use changes (abandonment and intensification) led to reduced plant and insect species richness, the structures of herbivory and pollination networks showed different responses to the land-use changes. There was a marked contrast in network generality; while herbivore species were less generalized (i.e. having fewer host plant species) in fields with land-use intensification, pollinator species were less generalized in abandoned fields.</li> <li>Furthermore, the mechanisms behind the changes in interaction networks were also different between pollination and herbivory networks. The change in herbivory network generality was induced by the decrease in plant species richness, whereas the change in pollination network generality was mainly induced by the effect independent of changes in species richness and composition, which possibly reflect the less number of flowers in shaded environment.</li> <li>The present study demonstrates that agricultural land-use changes affect herbivory and pollination networks in contrasting ways and suggests the importance of assessing multiple types of interaction networks for biodiversity conservation in plant–insect systems. Our results also highlight the under-appreciated importance of maintaining habitats with an intermediate intensity of land-use.</li> </ol>
A meta-analysis of tropical land-use change effects on the soil microbiome: emerging patterns and knowledge gaps
<p>Modifications to vegetation and soil due to changes in land use have the potential to alter the soil microbiome, with consequences for carbon and nutrient cycling. Despite the important function of soil microorganisms, little is known about their response to land-use change, especially in tropical regions where current rates of land conversion are greatest. The aim of this meta-analysis was to examine how land-use change influences soil microbial properties in tropical ecosystems and to identify current trends and knowledge gaps in the literature. We identified 83 published paired studies that reported data on microbial biomass, abundance, composition, and enzyme activity under representative land-use changes in the tropics. We calculated response ratios for studies that compared the following: reference forests to (a) agriculture, (b) pastures, (c) plantations, and (d) secondary forests. Here you will find all the raw and clean data used for the meta-analysis. </p>
Land use impacts poison frog chemical defenses through changes in leaf litter ant communities
<p>Much of the world's biodiversity is held within tropical rainforests, which are increasingly fragmented by agricultural practices. In these threatened landscapes, there are many organisms that acquire chemical defenses from their diet and are therefore intimately connected with their local food webs. Poison frogs (Family Dendrobatidae) are one such example, as they acquire alkaloid-based chemical defenses from their diet of leaf litter ants and mites. It is currently unknown how habitat fragmentation impacts chemical defense across trophic levels, from arthropods to frogs. We examined the chemical defenses and diets of the Diablito poison frog (Oophaga sylvatica), and the diversity of their leaf litter ant communities in secondary forest and reclaimed cattle pasture. Notably, this research was performed in collaboration with two high school science classrooms. We found that the leaf litter of forest and pasture frog habitats differed significantly in ant community structure. We also found that forest and pasture frogs differed significantly in diet and alkaloid profiles, where forest frogs contained more of specific alkaloids and ate more ants in both number and volume. Finally, ant species composition of frog diets resembled the surrounding leaf litter, but diets were less variable. This suggests that frogs tend to consume particular ant species within each habitat. To better understand how ants contribute to the alkaloid chemical profiles of frogs, we chemically profiled several ant species and found some alkaloids to be common across many ant species while others are restricted to a few species. Our experiments are the first to link anthropogenic land use changes to dendrobatid poison frog chemical defenses through variation in leaf litter communities, which has implications for conservation management of these threatened amphibians.</p>
Data from: Extreme climate events counteract the effects of climate and land-use changes in Alpine treelines
Climate change and extreme events, such as drought, threaten ecosystems world-wide and in particular mountain ecosystems, where species often live at their environmental tolerance limits. In the European Alps, plant communities are also influenced by land-use abandonment leading to woody encroachment of subalpine and alpine grasslands. In this study, we explored how the forest–grassland ecotone of Alpine tree lines will respond to gradual climate warming, drought events and land-use change in terms of forest expansion rates, taxonomic diversity and functional composition. We used a previously validated dynamic vegetation model, FATE-HD, parameterized for plant communities in the Ecrins National Park in the French Alps. Our results showed that intense drought counteracted the forest expansion at higher elevations driven by land-use abandonment and climate change, especially when combined with high drought frequency (occurring every 2 or less than 2 years). Furthermore, intense and frequent drought accelerated the rates of taxonomic change and resulted in overall higher taxonomic spatial heterogeneity of the ecotone than would be expected under gradual climate and land-use changes only. Synthesis and applications. The results from our model show that intense and frequent drought counteracts forest expansion driven by climate and land-use changes in the forest–grassland ecotone of Alpine tree lines. We argue that land-use planning must consider the effects of extreme events, such as drought, as well as climate and land-use changes, since extreme events might interfere with trends predicted under gradual climate warming and agricultural abandonment.
Few species, higher abundance or many species and lower abundance of birds of prey: effects of land use changes at different spatial scales
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Spatial Informatics Group (SIG)_ Cameroon - DEMO ONLY - Land Use Change (French)
Exemple de validation de l'occupation du sol au Cameroun
Spatial Informatics Group (SIG)_ Cameroon - DEMO ONLY - Land Use Change (French)
Exemple de validation de l'occupation du sol au Cameroun
Spatial Informatics Group (SIG)_ Cameroon - DEMO ONLY - Land Use Change (French)
Exemple de validation de l'occupation du sol au Cameroun
Spatial Informatics Group (SIG)_ Cameroon - DEMO ONLY - Land Use Change (French)
Exemple de validation de l'occupation du sol au Cameroun
Spatial Informatics Group (SIG)_ Cameroon - DEMO ONLY - Land Use Change (French)
Exemple de validation de l'occupation du sol au Cameroun
Spatial Informatics Group (SIG)_ Cameroon - DEMO ONLY - Land Use Change (French)
Exemple de validation de l'occupation du sol au Cameroun
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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)
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.