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500 results for “semi-arid”
Data from: Environmental changes drive the temporal stability of semi-arid natural grasslands through altering species asynchrony
Stability is an important property of ecological systems, many of which are experiencing increasing levels of anthropogenic environmental changes. However, how these environmental changes influence ecosystem stability remains poorly understood. We conducted an 8-year field experiment in a semi-arid natural grassland to explore the effects of two common environmental changes, precipitation and nitrogen enrichment, on the temporal stability of plant above-ground biomass. A split-plot design, with precipitation as the main plot factor and nitrogen as the sub-plot factor, was used. Temporal stability was related to potential explanatory abiotic and biotic variables using regressions and structural equation modelling. Increase in growing season precipitation enhanced plant species richness and promoted temporal stability of plant above-ground biomass. Nitrogen fertilization, however, reduced both plant species richness and temporal stability of plant above-ground biomass. Contrary to expectations, species richness was not an important driver of stability. Instead, community temporal stability was mainly driven by water and nitrogen availability that modulated the degree of species asynchrony, and, to a lesser extent, by the stability of dominant plant species. Synthesis. Our results highlight the importance of limiting resources for regulating community biomass stability, and suggest that the projected increase in growing season precipitation may potentially offset negative effects of increased atmospheric nitrogen deposition on species diversity and community stability in semi-arid grasslands.
Local diversity of soil forming processes in the semi-arid tropics and its environmental drivers: an example from Otavi Mountains, northern Namibia
<p>This is a supplementary dataset to the manuscript: Zádorová, T., Penížek, V., Mihaljevič, M., Koubová, M., Lisá, L., Ettler, V., Tejnecký. V., Drábek, O., Pavlů, L., Kříbek, B., Vaněk, A., Sracek, O., Reyes Rojas, J., Hrdlička, T., Vokurková, P., Mapani, B. 2025. Local diversity of soil forming processes in the semi-arid tropics and its environmental drivers: an example from Otavi mountains, Northern Namibia. Catena 249, 108671. <a title="Persistent link using digital object identifier" href="https://doi.org/10.1016/j.catena.2024.108671" target="_blank" rel="noreferrer noopener"><span><span>https://doi.org/10.1016/j.catena.2024.108671</span></span></a>.</p> <p>This research was supported by the Johannes Amos Comenius Programme (OP JAC), project No. CZ.02.01.01/00/22_008/0004605, Natural and anthropogenic georisks. The dataset is published under the Creative Commons Attribution 4.0 International License (CC-BY-4.0). This license allows others to distribute, remix, adapt, and build upon the dataset for any purpose, even commercially, as long as they give appropriate credit to the original creator(s).</p> <p> </p>
Supplementary material 1 from: Iepure S, Gouin N, Bertin A, Camacho AI, González-Ramón A, de Cisneros Vencelá CJ, Di Lorenzo T (2018) The use of groundwater crustacean communities as indicators for aquifers quality in the semi-arid region of north-central Chile. ARPHA Conference Abstracts 1: e30126. https://doi.org/10.3897/aca.1.e30126
Supplementary File
Figure 5 in A New Genus and Species of Earthworm (Oligochaeta: Megascolecidae) from Semi-Arid Australia
Figure 5. Habitat of Aridulodrilus molesworthae gen. et sp. nov.
Figure 2 in Host effect on morphology of the fruit fly Anastrepha zenildae (Diptera: Tephritidae) from the Semi-Arid region of Rio Grande do Norte
Figure 2. Female of Anastrepha zenildae showing body measurements used to compare flies between hosts and sexes. HW = Head width; FW = Face width; TH = Thorax length; WL = Wing length; WW = Wing width; OVP = Ovipositor length.
Figure 5 from: Alonso P, Iriondo J (2014) URJC GB dataset: Community-based seed bank of Mediterranean high-mountain and semi-arid plant species at Universidad Rey Juan Carlos (Spain). PhytoKeys 35: 57-72. https://doi.org/10.3897/phytokeys.35.6746
Figure 5 - Taxonomic coverage (percentage per family) of URJC GB.
Figure 8 from: Alonso P, Iriondo J (2014) URJC GB dataset: Community-based seed bank of Mediterranean high-mountain and semi-arid plant species at Universidad Rey Juan Carlos (Spain). PhytoKeys 35: 57-72. https://doi.org/10.3897/phytokeys.35.6746
Figure 8 - Geographical distribution of accessions in Peninsular Spain.
Figure 6 from: Alonso P, Iriondo J (2014) URJC GB dataset: Community-based seed bank of Mediterranean high-mountain and semi-arid plant species at Universidad Rey Juan Carlos (Spain). PhytoKeys 35: 57-72. https://doi.org/10.3897/phytokeys.35.6746
Figure 6 - Geographical distribution of the germplasm subcollections in Peninsular Spain.
Figure 4 from: Alonso P, Iriondo J (2014) URJC GB dataset: Community-based seed bank of Mediterranean high-mountain and semi-arid plant species at Universidad Rey Juan Carlos (Spain). PhytoKeys 35: 57-72. https://doi.org/10.3897/phytokeys.35.6746
Figure 4 - Taxonomic coverage (percentage per order) of URJC GB.
Figure 9 from: Alonso P, Iriondo J (2014) URJC GB dataset: Community-based seed bank of Mediterranean high-mountain and semi-arid plant species at Universidad Rey Juan Carlos (Spain). PhytoKeys 35: 57-72. https://doi.org/10.3897/phytokeys.35.6746
Figure 9 - URJC Germplasm Bank workflow.
Figure 1 from: Alonso P, Iriondo J (2014) URJC GB dataset: Community-based seed bank of Mediterranean high-mountain and semi-arid plant species at Universidad Rey Juan Carlos (Spain). PhytoKeys 35: 57-72. https://doi.org/10.3897/phytokeys.35.6746
Figure 1 - Number of accessions and species in the different subcollections of the URJC GB.
Figure 7 from: Alonso P, Iriondo J (2014) URJC GB dataset: Community-based seed bank of Mediterranean high-mountain and semi-arid plant species at Universidad Rey Juan Carlos (Spain). PhytoKeys 35: 57-72. https://doi.org/10.3897/phytokeys.35.6746
Figure 7 - Temporal coverage in the different subcollections of the URJC GB.
Data from: Environmental changes drive the temporal stability of semi-arid natural grasslands through altering species asynchrony
Open the record for dataset details and reuse information.
Data from: Effects of single and repeated drought on soil microarthropods in a semi-arid ecosystem depend more on timing and duration than drought severity
Open the record for dataset details and reuse information.
FIGURE 2. Rarefaction curve. The curve was calculated with a 95 in Bryofloristic diversity and conservation value of a protected area in the Brazilian semi-arid region
FIGURE 2. Rarefaction curve. The curve was calculated with a 95% confidence level, considering all collections throughout the two seasons, rainy and dry.
FIGURE 1 in Bryofloristic diversity and conservation value of a protected area in the Brazilian semi-arid region
FIGURE 1. Available substrates in Poeta e Repentista Juvenal de Oliveira Park State. A. Rocky outcrop (island soil). B. Termite mounds. C. Living trunks. D. Soil. E. Rock. F. Dead fallen trunks.
FIGURE 7. A–F in Annotated checklist of Cerambycidae (Coleoptera: Chrysomeloidea) from the Brazilian semi-arid region, with new species and new geographic records
FIGURE 7. A–F, Aerenicopsis joseferreirai sp. nov., holotype male: A–C, Dorsal, lateral, and ventral views; D, Head, frontal view; E, Labels. F, Aerenicopsis championi Bates, 1885, female, dorsal view, Turrialba, Costa Rica (MZUSP).
Length and weight data of two Eleotridae fish species of an estuary from the Brazilian semi-arid coast
<p>Length and weight data of <em>Eleotris pisonis </em>and <em>Dormitator maculatus</em> (Eleotridae) from Curu River estuary, Brazilian semiarid coast</p> <h3>Metadata:</h3> <table> <tbody> <tr> <td><strong>column</strong></td> <td><strong>unit</strong></td> <td><strong>description</strong></td> </tr> <tr> <td>standard_length</td> <td>milimeters</td> <td>the length of a fish measured from the tip of the snout to the posterior end of the last vertebra</td> </tr> <tr> <td>weight</td> <td>grams</td> <td>the weight of the fish measured with 0.01 g of accuracy</td> </tr> <tr> <td>latitude</td> <td>decimal degrees</td> <td>latitude geographic coordinate as decimal fractions of a degree; datum: WGS84</td> </tr> <tr> <td>longitude</td> <td>decimal degrees</td> <td>longitude geographic coordinate as decimal fractions of a degree; datum: WGS84</td> </tr> </tbody> </table>
Evaluation of groundwater quality for human consumption and Irrigation in relation to arsenic concentration in flow systems in a semi-arid Mexican region
<p>Sumplementary material for Evaluation of groundwater quality for human consumption and Irrigation in relation to arsenic concentration in flow systems in a semi-arid Mexican region</p>
Movement and competition ecology of African lions in semi-arid and wetland ecosystems
<p>GPS dataset of lion tracking data.</p>
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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)
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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.