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11,982 results for “africa”
Fatiando a Terra Data: Bushveld, Southern Africa - Observed and preprocessed gravity
<p>This dataset contains ground gravity observations over the area that comprises the Bushveld Igenous Complex in Southern Africa, including preprocessed gravity fields such as the <em>gravity disturbance</em> and the <em>bouguer gravity disturbance</em> (topography-free gravity disturbance). In addition, the dataset contains the heights of the observation points referenced on the WGS84 reference ellipsoid and over the mean sea-level (what can be considered to be the geoid). This dataset was built upon a portion of the Southern Africa gravity compilation available through <a href="https://www.ngdc.noaa.gov/mgg/gravity/">NOAA NCEI</a>.<br> <br> <strong>Note:</strong> This is a processed and formatted version of the source dataset below. It's meant for use in documentation and tutorials of the <a href="https://www.fatiando.org">Fatiando a Terra</a> project. Please <strong>cite the original authors</strong> when using this dataset.<br> <br> <strong>Changes made: </strong></p> <ul> <li>The original data were cropped to a region bounded by 25 and 32 degrees on longitude and -27 and -23 degrees on latitude.</li> <li>Geometric observation heights were obtained by adding geoid heights to the original observation heights referenced on the mean sea-level. The geoid heights on each observation point were obtained by interpolation of the geoid available in doi: <a href="https://doi.org/10.5281/zenodo.5882205">10.5281/zenodo.5882205</a>.</li> <li>Gravity disturbances were computed by removing the normal gravity of the WGS84 ellipsoid computed through <a href="https://www.fatiando.org/boule">Boule</a>.</li> <li>Bouguer gravity disturbances were computed by forward modelling the topography using <a href="https://www.fatiando.org/harmonica">Harmonica</a> starting from the topography grid provided in doi: <a href="https://doi.org/10.5281/zenodo.6481379">10.5281/zenodo.6481379</a> and using densities of 2670 kg/m³ above the ellipsoid and 1040 - 2670 kg/m³ below the ellipsoid.</li> </ul> <p><strong>Source: </strong><a href="https://www.ngdc.noaa.gov/mgg/gravity/">NOAA NCEI</a> (gravity) and <a href="https://doi.org/10.7289/V5C8276M">ETOPO1</a> (topography)</p> <p><strong>Source license: </strong><a href="https://ngdc.noaa.gov/ngdcinfo/privacy.html">public domain</a> (gravity) and <a href="https://ngdc.noaa.gov/mgg/global/dem_faq.html#sec-2.4">public domain</a> (topography)</p> <p><strong>Repository</strong>: <a href="https://github.com/fatiando-data/bushveld-gravity">https://github.com/fatiando-data/bushveld-gravity</a></p>
Figures 210–224 in Notes on Compsobuthus: redescription of C. arabicus Levy et al., 1973 from Arabia, and description of two new species from North Africa (Scorpiones: Buthidae)
Figures 210–224: Mitotic metaphases (210, 213, 216, 219, 222), male postpachytenes (211, 214, 217, 220, 223), and ideograms (212, 215, 218, 221, 224) (y axis: % of the diploid chromosome length, dark grey marks: chromosomes in multivalent association) of Compsobuthus species from Arabia and North Africa. Figure 210. Female of C. acutecarinatus (2n=22). Figures 211–212. Male of C. acutecarinatus (2n=22, 11II). Figures 213–215. Male of C. acutecarinatus (2n=22, 9II+CIV). Figures 216–218. Male of C. arabicus (2n=22, 9II+CIV). Figures 219–221. Male of C. maindroni (2n=22, 11II). Figures 222–224. Male of C. ullrichi sp. n. (2n=22, 9II+CIV). Arrows show chromosomes in multivalent association during postpachytene (214, 217, 223). Scale bar: 10 μm
Multiproxy Reconstruction of Pliocene North Atlantic Sea Surface Temperatures and Implications for Rainfall in North Africa
<p>This dataset accompanies the publication by Wycech et al. "Multiproxy Reconstruction of Pliocene North Atlantic Sea Surface Temperatures and Implications for Rainfall in North Africa" in <em>Paleoceanography and Paleoclimatology</em>. The dataset is comprised of the raw paleo-proxy (Mg/Ca ratios and U<sup>k’</sup><sub>37</sub>) data and reconstructed sea surface temperatures (SSTs) from the early Pliocene (5 Ma) to modern. The provided data were input into the accompanying R codes, which executed principal component analysis and generated the results described in Wycech et al.</p>
Multi-Annual Indicative Programmes EU for Sub-Saharan Africa (2014-2021-2027)
<p>This dataset is the result of the analysis of all 44 Multi-Annual Indicative Programmes (MIPs) for the period 2021-2027 of the European Union (EU) for Sub-Saharan Africa in which the EU implements its bilateral programmes.</p> <p>In addition, hitherto, 5 of the 29 National Indicative Programmes (NIPs) for the period 2014-2020, which are the of the predecessors of the MIPs, have been analyzed. In the following months, an updated dataset including the remaining 24 NIPs(2014-2020) can be expected.</p> <p>The documents have been examined from a financial perspective, and provide the following information:</p> <p><strong>European Development Finance Institutions (EDFI) Activity:</strong></p> <p>- Which European (and International) Development Finance Institutions are mentioned (/active) in which Sub-Saharan African (SSA) country.</p> <p><strong>Member State (MS) Activity:</strong></p> <p>- Which European Member States (MS) are mentioned (/ active) in which SSA country.</p> <p>- Which other international actors are mentioned in which SSA country.</p> <p><strong>Budgets:</strong></p> <p>- How much funding does each SSA country receive of the NDICI (2021) or EDF (2014) budget.</p> <p>- How much funding is attributed to which financial instrument; specifically Team Europa Initiatives (TEIs) and the External Action Guarantee (EAG).</p> <p>- Which concrete other numbers have been mentioned per actor (selected EU member states and development banks).</p> <p><strong>Budgets comparison</strong></p> <p>- A preliminary comparison, however not the same time period (!). The budgets in the 2021-2027 MIPs mentioned are those for the first period and are for the timer frame 2021-202<strong>4</strong>. The budgets in the 2014-2020 NIPs are for the full term.</p> <p><strong>Instruments</strong>:</p> <p>- Which (financial) instruments are mentioned (/will be used) in which SSA country; specifically micro loans, blending, guarantees, technical assistance, Public-Private Partnerships (PPPs), and others.</p> <p>- For the 2021-2027 MIPs: Does the SSA country receive a Team Europe Initiative? If yes, how many, and which actors are involved in the TEI.</p> <p><strong>Policy Priorities</strong></p> <p>- What are the three EU policy priorities per SSA country.</p>
Data from: Network-based biostratigraphy for the late Permian to mid-Triassic Beaufort Group (Karoo Supergroup) in South Africa enhances biozone applicability and stratigraphic correlation
<p>The Permo-Triassic vertebrate assemblage zones (AZs) of South Africa's Karoo Basin are a standard for local and global correlations. However, temporal, geographical, and methodological limitations challenge the AZs reliability. We analyze a unique fossil dataset comprising 1408 occurrences of 115 species grouped into 19 stratigraphic bin intervals from the <em>Cistecephalus</em>, <em>Daptocephalus</em>, <em>Lystrosaurus</em> <em>declivis</em>, and <em>Cynognathus</em> AZs. Using network science tools we compare six frameworks: Broom, Rubidge, Viglietti, Member, Formation, including a framework suggesting diachroneity of the <em>Daptocephalus</em>/<em>Lystrosaurus</em> AZ boundary (Gastaldo). Our results demonstrate that historical frameworks (Broom, Rubidge) still identify the Karoo AZs. No scheme supports the <em>Cistecephalus</em> AZ, and it likely comprises two discrete communities. The <em>Lystrosaurus</em> <em>declivis</em> AZ is traced across all frameworks, despite many shared species with the underlying <em>Daptocephalus</em> AZ, suggesting the extinction event across this interval is not a statistical artifact. A community shift at the upper Katberg to lower Burgersdorp formations may indicate a depositional hiatus, which has important implications for regional correlations and Mesozoic ecosystem evolution. The Gastaldo model still identifies a <em>Lystrosaurus</em> and <em>Daptocephalus</em> AZ community shift, does not significantly improve recent AZ models (Viglietti), and highlights important issues with some AZ studies. Localized bed-scale lithostratigraphy (sandstone datums), and singleton fossils cannot be used to reject the patterns shown by hundreds of fossils, and regional chronostratigraphic markers of the Karoo foreland basin. Meter-level occurrence data suggest that 20–50 m sampling intervals capture Karoo AZs, unifying the use of meter-level placements of singleton fossils to delineate biozone boundaries and make regional correlations.</p>
Flickr Africa: Examining Geo-Diversity in Large-Scale, Human-Centric Visual Data
<p>This dataset is provided for the paper "Flickr Africa: Examining Geo-Diversity in Large-Scale, Human-Centric Visual Data".</p> <p>Please refer to the readme in the zipped file for additional documentation.</p> <p>The zipped file contains two CSV files for every country in Africa obtained by queries "[country name]" and "[country name + people]".</p>
Relevant data for publication 'Atmospheric phosphorus deposition amplifies carbon sinks in simulations of a tropical forest in Central Africa' Goll et al.
<p>Plotting scripts and processed output from ORCHIDEE-CNP. The version of ORCHIDEE is available here: https://doi.org/10.14768/391825ae-d257-4365-9820-30ea1940914c</p>
Figs 19–22. 19–20 in Review of the genera Elaphinis and Parelaphinis (Coleoptera: Scarabaeidae: Cetoniinae) with description of three new species from South Africa
Figs 19–22. 19–20 – males of Elaphinis (E.) matatiele sp. nov. (19) and of E. (E.) cinereonebulosa (De Geer, 1778) (20) in their respective natural habitats at Matatiele and Willowmore. 21–22 – typical habitat of E. matatiele sp. nov. in the grassland of Mount Hargreaves, above the Eastern Cape town of Matatiele (21) and of E. cinereonebulosa in the highland grasslands of the Winterberge range of the Eastern Cape. Photographs: Lynette Clennell.
Figs 53–61 in Review of the genera Elaphinis and Parelaphinis (Coleoptera: Scarabaeidae: Cetoniinae) with description of three new species from South Africa
Figs 53–61. Parelaphinis moesta (Gory & Percheron, 1833). 53–60 – male; 61 – female. 53, 61 – dorsal habitus; 54 – ventral habitus; 55 – lateral habitus; 56 – clypeus; 57 – pygidium; 58 – parameres, dorsal view; 59 – parameres, lateral view; 60 – parameres, frontal view. Photographs: Lynette Clennell (53–60), Gerhard Beinhundner (61).
Fig. 23 in Review of the genera Elaphinis and Parelaphinis (Coleoptera: Scarabaeidae: Cetoniinae) with description of three new species from South Africa
Fig. 23. Known distribution of Elaphinis (E.) cinereonebulosa (De Geer, 1778) and E. (E.) matatiele sp. nov. within South Africa, as well as outline of Wahlberg's ʻCaffrariaʼ (black dotted frame) with position of estimated type locality of E. (M.) pumila Boheman, 1857 (map adapted from www.wikimedia.org).
Figs 1–9 in Review of the genera Elaphinis and Parelaphinis (Coleoptera: Scarabaeidae: Cetoniinae) with description of three new species from South Africa
Figs 1–9. Elaphinis (E.) matatiele sp. nov. 1–8 – holotype male; 9 – female. 1, 9 – dorsal habitus; 2 – ventral habitus; 3 – lateral habitus; 4 – clypeus; 5 – pygidium; 6 – parameres, dorsal view; 7 – parameres, lateral view; 8 – parameres, frontal view. Photographs: Lynette Clennell.
Fig. 66 in Review of the genera Elaphinis and Parelaphinis (Coleoptera: Scarabaeidae: Cetoniinae) with description of three new species from South Africa
Fig. 66. Known distribution of Parelaphinis moesta (Gory & Percheron, 1833), P. drakensbergica sp. nov. and P. umtamvuna sp. nov. within southern Africa (map adapted from www.wikimedia.org); grey dot indicates doubtful record of P. moesta from Gauteng, as discussed in text.
Figs 10–18 in Review of the genera Elaphinis and Parelaphinis (Coleoptera: Scarabaeidae: Cetoniinae) with description of three new species from South Africa
Figs 10–18. Elaphinis (E.) cinereonebulosa (De Geer, 1778). 10–17 – typical male; 18 – female. 10, 18 – dorsal habitus; 11 – ventral habitus; 12 – lateral habitus; 13 – clypeus; 14 – pygidium; 15 – parameres, dorsal view; 16 – parameres, lateral view; 17 – parameres, frontal view. Photographs: Lynette Clennell (10–17); Gerhard Beinhundner (18).
Figs 35–42 in Review of the genera Elaphinis and Parelaphinis (Coleoptera: Scarabaeidae: Cetoniinae) with description of three new species from South Africa
Figs 35–42. Parelaphinis drakensbergica sp. nov. (holotype male). 35 – dorsal habitus; 36 – ventral habitus; 37 – lateral habitus; 38 – clypeus; 39 – pygidium; 40 – parameres, dorsal view; 41 – parameres, lateral view; 42 – parameres, frontal view. Photographs: Lynette Clennell.
Fig. 4 in A new Copelatus with small eyes from the Eastern Cape Wild Coast, South Africa (Coleoptera: Dytiscidae)
Fig. 4. Southern African Copelatus species compound eyes, all to same scale. A – C. mkambati sp. nov., paratype male; B – C. capensis Sharp, 1882 (Groote River, South Africa); C – C. erichsoni Guérin-Méneville, 1847 (St Lucia, South Africa); D – C. pulchellus (Klug, 1834) (St Lucia, South Africa).
Fig. 1. Copelatus species. A – C in A new Copelatus with small eyes from the Eastern Cape Wild Coast, South Africa (Coleoptera: Dytiscidae)
Fig. 1. Copelatus species. A – C. mkambati sp. nov. holotype male habitus; B – C. mkambati sp. nov., paratype female habitus; C – C. macellus Guignot, 1950, holotype male habitus; D – C. macellus, holotype labels. Scale bar applies to A–C. Figs C & D: © MNHN/Christophe Rivier.
Figs 44–52 in Review of the genera Elaphinis and Parelaphinis (Coleoptera: Scarabaeidae: Cetoniinae) with description of three new species from South Africa
Figs 44–52. Parelaphinis umtamvuna sp. nov. 44–51 – holotype male; 52 – female. 44, 52 – dorsal habitus; 45 – ventral habitus; 46 – lateral habitus; 47 – clypeus; 48 – pygidium; 49 – parameres, dorsal view; 50 – parameres, lateral view; 51 – parameres, frontal view. Photographs: Lynette Clennell.
Fig. 3. Copelatus species male genitalia. A – C. macellus Guignot, 1950 in A new Copelatus with small eyes from the Eastern Cape Wild Coast, South Africa (Coleoptera: Dytiscidae)
Fig. 3. Copelatus species male genitalia. A – C. macellus Guignot, 1950, median lobe; B – C. basilewskyi Bilardo & Pederzani, 1979, median lobe; C – C. mkambati sp. nov., median lobe and paramere. Scale bar in C = 0.5 mm. Note that lines on the paramere represent musculature, not surface ridges. A & B after GඎංGඇඈඍ (1961) and Bංඅൺඋൽඈ & Pൾൽൾඋඓൺඇං (1979), respectively.
Fig. 43 in Review of the genera Elaphinis and Parelaphinis (Coleoptera: Scarabaeidae: Cetoniinae) with description of three new species from South Africa
Fig. 43. Typical grassland habitat of Parelaphinis drakensbergica sp. nov. on the plateau of the Platberg above Harrismith, Free State. Photograph: ©vrystaatconfessions.com.
Figs 24–34 in Review of the genera Elaphinis and Parelaphinis (Coleoptera: Scarabaeidae: Cetoniinae) with description of three new species from South Africa
Figs 24–34. Elaphinis (Micrelaphinis) pumila Boheman, 1857. 24–30 – paralectotype male; 31–34 – lectotype male of Heteroclita (?) scitula Janson, 1878. 24, 31 – dorsal habitus; 25, 32 – lateral habitus; 26, 33 – clypeus; 27 – pygidium; 28, 34 – specimen labels; 29 – parameres, dorsal view; 30 – parameres, lateral view. Photographs: Johannes Bergsten (24–30) (courtesy of Gerhard Beinhundner) and Oscar Vorst (31–34).
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