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203 results for “horn of africa”
Distribution. Horn of Africa (Eritrea, Djibouti, Ethiopia, and Somalia), geographically isolated from the other gundis. in Ctenodactylidae
Distribution. Horn of Africa (Eritrea, Djibouti, Ethiopia, and Somalia), geographically isolated from the other gundis.
Distribution. North Africa, Horn of Africa, and W Middle East, including Morocco, Algeria, Tunisia, Libya, Egypt, Western Sahara, Mauritania, Senegal, Mali, Niger, Chad, Sudan, Eritrea, Ethiopia, Somalia, NE Nigeria, Sinai Peninsula, Israel, and WJordan; it probably occurs in the West Bank, extreme N Burkina Faso, and Djibouti. in Dipodidae
Distribution. North Africa, Horn of Africa, and W Middle East, including Morocco, Algeria, Tunisia, Libya, Egypt, Western Sahara, Mauritania, Senegal, Mali, Niger, Chad, Sudan, Eritrea, Ethiopia, Somalia, NE Nigeria, Sinai Peninsula, Israel, and WJordan; it probably occurs in the West Bank, extreme N Burkina Faso, and Djibouti.
Distribution. Widely distributed throughout sub-Saharan Africa, from Senegal to Sudan and S to E South Africa. It is absent from the Horn of Africa, the Central African tropical forest basin, and the arid areas of Namibia, Botswana, and South Africa. in Thryonomyidae
Distribution. Widely distributed throughout sub-Saharan Africa, from Senegal to Sudan and S to E South Africa. It is absent from the Horn of Africa, the Central African tropical forest basin, and the arid areas of Namibia, Botswana, and South Africa.
Figure 2 in Tracking the trends of karyotype differentiation in the phylogenetic context of Gint, a scorpion genus endemic to the Horn of Africa (Scorpiones: Buthidae)
Figure 2. Post-pachytene cells of Gint species after Giemsa staining (A, C, E, G, I, K, M, O) and FISH with 18S rDNA (red signals) (B, D, F, H, J, L, N, P). A, B, G. banfasae cytotype I (2 n = 18 – 7II + IV). C, D, G. banfasae cytotype II (2n= 18 – 6II + VI). E, F, G. banfasae cytotype III (2n = 19 – 5II + III + VI). G, H, G. dabakalo cytotype I (2n = 23 – 9II + V). I, J, G. dabakalo cytotype II (2n = 24 – 8II + III + V). K, L, G. dabakalo cytotype III (2n = 27 – 8II + 2III + V). M, N, G. gaitako (2n = 30 – 13II + IV). O, P, G. maidensis (2n = 34). Abbreviations: II, bivalent; III, trivalent; IV, quadrivalent; V, pentavalent; VI, hexavalent. Arrowheads indicate the position of 18S rDNA. Scale bar = 10 µm.
Figure 7 in Tracking the trends of karyotype differentiation in the phylogenetic context of Gint, a scorpion genus endemic to the Horn of Africa (Scorpiones: Buthidae)
Figure 7. Types of meiotic multivalent associations in Gint spp. with schemes of hypothesized intra- or interchromosomal rearrangements leading to observed multivalent formation.A,G. dabakalo – a trivalent arising from fission of the chromosome. B, G. dabakalo – a pentavalent originating from three independent fusion events. C, G. gaitako – a quadrivalent resulting from reciprocal translocation. D, G. banfasae – a quadrivalent as a result of reciprocal translocation. E, G. banfasae – a hexavalent arising through two independent events: (1) a fission of chromosome 1 involved in quadrivalent; (2) subsequent fusion of an emerging chromosome fragment with another chromosome. F, G. amoudensis – a quadrivalent arising from the reciprocal translocation. G, G. amoudensis – a hexavalent originated from the reciprocal translocation of the chromosome involved in the quadrivalent and another chromosome.
Figure 6 in Tracking the trends of karyotype differentiation in the phylogenetic context of Gint, a scorpion genus endemic to the Horn of Africa (Scorpiones: Buthidae)
Figure 6. Ancestral state reconstruction analyses based on the Bayesian tree from this study, depicting: A, number of chromosomes; B, position of 18S rDNA. Results of maximum parsimony analysis reconstructing ancestral states for both cytogenetic characters are visualized by colours of the circles. Arrowheads indicate hypothetical inversion on 18S rDNAbearing chromosomes.
Figure 5 in Tracking the trends of karyotype differentiation in the phylogenetic context of Gint, a scorpion genus endemic to the Horn of Africa (Scorpiones: Buthidae)
Figure 5. Bayesian tree of the Gint species based on the concatenated data set (16S and COI), complemented with summarized cytogenetic data of the species studied. Numbers above branches correspond to values for highly supported nodes as follows: Bayesian posterior probabilities (PP)> 0.95/maximum likelihood bootstrap> 70%. Specimen IDs depicted in bold indicate individuals based on chromosome counts determined for the corresponding Gint species in previous studies (see: Kovařík et al., 2013; Kovařík & Mazuch, 2015; Kovařík et al., 2018). Abbreviations: cyt, cytotype; 2n, diploid number of chromosomes; II, bivalent; III, trivalent; IV, quadrivalent; V, pentavalent; VI, hexavalent.
Figure 3 in Tracking the trends of karyotype differentiation in the phylogenetic context of Gint, a scorpion genus endemic to the Horn of Africa (Scorpiones: Buthidae)
Figure 3. Post-pachytene cells of Gint amoudensis and G. gubanensis after Giemsa staining (A, C, E, G, I) and FISH with 18S rDNA (red signals) (B, D, F, H, J). A, B, G. amoudensis cytotype I (2n = 36 – 16II + IV). C, D, G. amoudensis cytotype II (2n = 35 – 14II + III + IV). E, F, G. amoudensis cytotype III (2n = 36 – 15II + VI). G, H, G. amoudensis cytotype IV (2n = 35 – 13II + III + VI). I, J, G. gubanensis (2n = 45 – 21II + III). Abbreviations: II, bivalent; III, trivalent; IV, quadrivalent; VI, hexavalent. Arrowheads indicate the position of 18S rDNA. Scale bar = 10 µm.
Figure 4 in Tracking the trends of karyotype differentiation in the phylogenetic context of Gint, a scorpion genus endemic to the Horn of Africa (Scorpiones: Buthidae)
Figure 4. Post-pachytene cells of Gint species after FISH with (TTAGG)n telomeric probe (red signal). A, G. banfasae cytotype III (2n = 19 – 5II + III + VI). B, G. dabakalo cytotype II (2n = 24 – 8II + III + V). C, G. gaitako (2n = 30 – 13II + IV). D, G. maidensis (2n = 34 – 17II). E, G. amoudensis cytotype IV (2n = 35 – 13II + III + VI). F, G. gubanensis (2n = 45 – 21II + III). Abbreviations: II, bivalent; III, trivalent; IV, quadrivalent; V, pentavalent; VI, hexavalent. Scale bar = 10 µm.
FIGURE 3. Ceropegia marronina. A in New species of Ceropegia (Apocynaceae) from the Horn of Africa
FIGURE 3. Ceropegia marronina. A, branch (scale 4 mm). B, side view of dissected corolla (scale 3 mm). C, face view of gynostegium (scale 2 mm). D, pollinarium (scale 0.25 mm). Drawn from Bruyns 13247 (BOL, ETH) by P.V. Bruyns.
FIGURE 4. Ceropegia pseudorhynchantha. A in New species of Ceropegia (Apocynaceae) from the Horn of Africa
FIGURE 4. Ceropegia pseudorhynchantha. A, plant greatly reduced in length (scale 10 mm). B, bud (scale 3 mm). C, side view of flower (scale 3 mm, as for E). D, corolla-lobe (scale 2 mm). E, side view of base of dissected flower. F, side view of gynostegium (scale 1 mm). G, face view of gynostegium (scale 1 mm). H, pollinarium (scale 0.25 mm). Drawn from Friis et al. 3679 (K) by P.V. Bruyns.
FIGURE 1. A, B, Ceropegia buraoensis. A in New species of Ceropegia (Apocynaceae) from the Horn of Africa
FIGURE 1. A, B, Ceropegia buraoensis. A, branch with flower. The rearward-pointing bases of the leaf-rudiments can clearly be seen here. B, branch showing rear of corolla. C, Ceropegia marronina, Bruyns 13247 (BOL), D, Ceropegia pseudorhynchantha, Bruyns 11584 (BOL, E. MO). Photographs by: A, B, T. Masuch. C, D, P.V. Bruyns.
FIGURE 2. Ceropegia buraoensis. A in New species of Ceropegia (Apocynaceae) from the Horn of Africa
FIGURE 2. Ceropegia buraoensis. A, side view of flower (scale 2 mm). B, side view of dissected flower (scale 2 mm). C, face view of gynostegium (scale 1 mm, as for D, E). D, side view of leaf-rudiment. E, rear view of leaf-rudiment. F, pollinarium (scale of C 0.25 mm). Drawn from Bruyns 13781 (BOL) by P.V. Bruyns.
FIGURE 3 in Examination of the molecular relationships of sand frogs (Anura: Pyxicephalidae: Tomopterna) and resurrection of two species from the Horn of Africa
FIGURE 3. Distribution of seven species of Tomopterna using the first two canonical variates based on 25 morphometric characters. The first two canonical variates accounted for 65.4% of the variance.
FIGURE 1 in Examination of the molecular relationships of sand frogs (Anura: Pyxicephalidae: Tomopterna) and resurrection of two species from the Horn of Africa
FIGURE 1. Map of the Horn of Africa, focused on Ethiopia and Somalia, depicting type localities of Tomopterna from this region and localities where specimens were collected.
FIGURE 4 in Examination of the molecular relationships of sand frogs (Anura: Pyxicephalidae: Tomopterna) and resurrection of two species from the Horn of Africa
FIGURE 4. Tomopterna kachowskii from Sodere, Oromia Region, Ethiopia (A) and T. elegans from Buq Village, Bari Region, Puntland State, Somalia (B), in life; dorsal views of T. kachowskii (ZISP 2077.1, holotype, male; C) and T. elegans (CAS190562, male; D); ventral views of T. kachowskii (ZISP 2077.1; E) and T. elegans (CAS190562; F); throat and hands of T. kachowskii (CAS 225419; G) and T. elegans (CAS190562; H); ventral views of feet of T. kachowskii (CAS 225419; I) and T. elegans (CAS190562; J), showing large inner metatarsal tubercle and small outer metatarsal tubercle (arrow). Scale bar 5 mm.
FIGURE 2 in Examination of the molecular relationships of sand frogs (Anura: Pyxicephalidae: Tomopterna) and resurrection of two species from the Horn of Africa
FIGURE 2. Maximum likelihood phylogram inferred from mitochondrial nucleotide sequence data of 12S rRNA, valinetRNA, and 16S rRNA. Numbers in parentheses after scientific names indicate the number of sequences included for particular species. Numbers above branches are Bayesian posterior probabilities; those values less than 50% are not shown.
FIGURE 4. Trichodesma stocksii. A in New country records for species of Boraginaceae and Lamiaceae in the Horn of Africa hotspot
FIGURE 4. Trichodesma stocksii. A. Portion of plant with flowers and young fruits. B. Basal leaf. C. Flower. D. Calyx at anthesis. E. Corolla tube opened up to show stamens. F. Pistil. G. Fruiting calyx flattened out to show ovary with two undeveloped nutlets and with two nutlets detached. H. Two mature nutlets and two undeveloped nutlets at base of style. I. Nutlet from below showing attachment area. J. Seed. Scales 20 mm (A, B), 5 mm (C, G, H), 2 mm (D, I), and 1 mm (E, F, J). All from Thulin et al. 9923. Drawn by Margaret Tebbs.
FIGURE 2 in New country records for species of Boraginaceae and Lamiaceae in the Horn of Africa hotspot
FIGURE 2. Cystostemon heliocharis, from northwestern Somalia (Somaliland), ca. 120 km from Erigavo to Burao, 18 Aug 2019. Photograph by Boris Vrškový.
FIGURE 6 in New country records for species of Boraginaceae and Lamiaceae in the Horn of Africa hotspot
FIGURE 6. Clerodendrum hildebrandtii, from Ethiopia, Somali Region, 7 km E of Kebri Dehar, Ceelxaar, 29 Sep 2018. A. Leafy shoot, showing calyces and bud. B. Young leafy shoot with more rounded leaves and with open flower and bud. Photographs by Hassan Yusuf Kaariye.
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Allen Brain Atlas
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OpenNeuro
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