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688 results for “Arabian Peninsula”
FIGURES 1–8 in The genus Lyroda Say, 1837 in Africa and Arabian Peninsula with description of two new species (Hymenoptera, Crabronidae)
FIGURES 1–8. Specimens in dorsal view. 1. Lyroda aethiopica ♀ from Burkina Faso. 2. Lyroda aethiopica Ƌ from Ethiopia. 3. Lyroda centralafricana ♀ from Central African Republic. 4. Lyroda centralafricana Ƌ holotype. 5. Lyroda formosa ♀ from Vietnam. 6. Lyroda formosa Ƌ from Bangladesh. 7. Lyroda salalah ♀ holotype. 8. Lyroda salalah Ƌ.
Data from: Weak population structure of the Spot-tail shark Carcharhinus sorrah and the Blacktip shark C. limbatus along the coasts of the Arabian Peninsula, Pakistan and South Africa
The increase in demand for shark meat and fins has placed shark populations worldwide under high fishing pressure. In the Arabian region, the Spot-tail shark Carcharhinus sorrah and the Blacktip shark Carcharhinus limbatus are among the most exploited species. In this study we investigated the population genetic structure of C. sorrah (n= 327) along the coasts of the Arabian Peninsula and of C. limbatus (n= 525) along the Arabian coasts, Pakistan and KwaZulu-Natal, South Africa using microsatellite markers (15 and 11 loci respectively). Our findings support weak population structure in both species. Carcharhinus sorrah exhibited a fine structure, subdividing the area into three groups. The first group comprises all samples from Bahrain, the second from the UAE and Yemen and the third from Oman. Similarly, C. limbatus exhibited population subdivision into three groups. The first group, comprising samples from Bahrain and Kuwait, was highly differentiated from the second and third group, comprising samples from Oman, Pakistan, the UAE and Yemen; and South Africa and the Saudi Arabian Red Sea, respectively. Population divisions were supported by pairwise FST values and Discriminant Analysis of Principal Components (DAPC), but not by STRUCTURE. We suggest that the mostly low but significant pairwise FST values in our study are suggestive of fine population structure, which is possibly attributable to behavioural traits such as residency in C. sorrah and site fidelity and philopatry in C. limbatus. However, for all samples obtained from the northern parts of the Gulf (Bahrain and/or Kuwait)in both species, the higher but significant pairwise FST values could possibly be a result of founder effects during the Tethys Sea closure. Based on DAPC and FST results, we suggest each population to be treated as independent management unit, as conservation concerns emerge.
Data from: Seascape genetics along environmental gradients in the Arabian Peninsula: insights from ddRAD sequencing of anemonefishes
Understanding the processes that shape patterns of genetic structure across space is a central aim of landscape genetics. However, it remains unclear how geographic features and environmental variables shape gene flow, particularly for marine species in large complex seascapes. Here, we evaluated the genomic composition of the two-band anemonefish Amphiprion bicinctus across its entire geographic range in the Red Sea and Gulf of Aden, as well as its close relative, Amphiprion omanensis endemic to the southern coast of Oman. Both the Red Sea and the Arabian Sea are complex and environmentally heterogeneous marine systems that provide an ideal scenario to address these questions. Our findings confirm the presence of two genetic clusters previously reported for A. bicinctus in the Red Sea. Genetic structure analyses suggest a complex seascape configuration, with evidence of both Isolation by Distance (IBD) and Isolation by Environment (IBE). In addition to IBD and IBE, genetic structure among sites was best explained when two barriers to gene flow were also accounted for. One of these coincides with a strong oligotrophic-eutrophic gradient at around 16-20˚N in the Red Sea. The other agrees with an historical bathymetric barrier at the straight of Bab al Mandab. Finally, these data support the presence of inter-specific hybrids at an intermediate suture zone at Socotra and indicate complex patterns of genomic admixture in the Gulf of Aden with evidence of introgression between species. Our findings highlight the power of recent genomic approaches to resolve subtle patterns of gene flow in marine seascapes.
FIGURES 13–14. 13 in Beach and Surge Flies (Diptera: Canacidae) from the Arabian Peninsula, with descriptions of three new species
FIGURES 13–14. 13. Suffomyia scutellaris Freidberg, male (paratype) terminalia caudal view. Scale bar = 0.1 mm. 14. Suffomyia dancei sp. nov., female postabdomen dorsal view. Legend: ce = cerci, tg = tergite. Scale bar = 0.5 mm.
FIGURES 11–12 in Beach and Surge Flies (Diptera: Canacidae) from the Arabian Peninsula, with descriptions of three new species
FIGURES 11–12. Suffomyia dancei sp. nov. 11. Male terminalia lateral view; 12. Ditto, caudal view. Scale bar = 0.1 mm.
FIGURES 8–10 in Beach and Surge Flies (Diptera: Canacidae) from the Arabian Peninsula, with descriptions of three new species
FIGURES 8–10. Xanthocanace hamifer sp. nov. 8. Male terminalia caudal view; 9. Ditto, lateral view; 10. Female postabdomen ventral view. Legend: ce = cercus, hyprct = hypoproct, st = sternite. Scale bar = 0.1 mm.
FIGURES 1–4 in Beach and Surge Flies (Diptera: Canacidae) from the Arabian Peninsula, with descriptions of three new species
FIGURES 1–4. Nocticanace affinis sp. nov. 1. Male terminalia caudal view; 2. Ditto, lateral view; 3. Ditto, left surstylus lateral view; 4. Ditto, detail of the chaetotactic pattern of the left surstylus. Arrows indicate progressive magnifications. Figures 1–2: scale bar = 0.1 mm.
FIGURES 5–7 in Beach and Surge Flies (Diptera: Canacidae) from the Arabian Peninsula, with descriptions of three new species
FIGURES 5–7. Nocticanace affinis sp. nov. 5. Female postabdomen dorsal view; 6. Ditto, lateral view; 7. Sternites 7 and 8 ventral view. Legend: ce = cercus, epiprct = epiproct, hyprct = hypoproct, st = sternite, tg = tergite. Scale bar = 0.1 mm.
FIGURE 7 in Magelonidae (Polychaeta) from the Arabian Peninsula: a review of known species, with notes on Magelona tinae from Thailand
FIGURE 7. Magelona heteropoda (Holotype, BMNH:ZB.1971.54) medial fragment, ventral view, showing convoluted posteriorly open pouch; eggs apparent.
FIGURE 6 in Magelonidae (Polychaeta) from the Arabian Peninsula: a review of known species, with notes on Magelona tinae from Thailand
FIGURE 6. Magelona heteropoda (Holotype, BMNH:ZB.1971.54) A, prostomium, dorsal view; B, posterior region, dorsal view, interparapodial glandular areas marked; C, pygidium, ventral view, showing one anal cirrus; D, tridentate abdominal hooded hook, lateral, oblique view; E, venter between chaetigers 7 and 8 (chaetiger 7 left previously dissected), showing conspicuous ventral swellings; F, chaetiger 10, anterior view.
FIGURE 2 in Magelonidae (Polychaeta) from the Arabian Peninsula: a review of known species, with notes on Magelona tinae from Thailand
FIGURE 2. Magelona obockensis (A–F from 36 chaetiger anterior fragment, proboscis everted, right–hand palp retained, left–hand side damaged between chaetigers 12–18; G–M from 26 chaetiger anterior fragment, proboscis not everted, left–hand palp retained; Syntypes, MNHN Type 1357) A–D, chaetigers 1, 2, 4 and 5 respectively (anterior views); E, neuropodial lamellae from chaetiger 5, dorsal view; F, chaetiger 7, anterior view; G–H, chaetigers 6 and 8 (anterior views); I, neuropodia from chaetiger 8, lateral view; J–K, chaetigers 9 and 10 (anterior views); L, postchaetal expansion of abdominal lamella (hooks omitted for clarity); M, chaetiger 16 (anterior view).
FIGURE 11 in Magelonidae (Polychaeta) from the Arabian Peninsula: a review of known species, with notes on Magelona tinae from Thailand
FIGURE 11. Magelona tinae (Paratype, PMBC 3180) A, anterior region, dorsal view, methyl green staining pattern shown; B, chaetiger 1, anterior view; C, neuropodium of chaetiger 1, dorsal view; D–I, chaetigers 3, 6, 7, 8, 9 & 10 respectively (anterior views); J, venter between chaetigers 7 and 9, showing ventral markings; K, mucronate chaeta from chaetiger 9, L–M, tridentate abdominal hooded hooks, frontal, lateral oblique views respectively (hoods omitted for clarity).
FIGURE 1 in Magelonidae (Polychaeta) from the Arabian Peninsula: a review of known species, with notes on Magelona tinae from Thailand
FIGURE 1. Magelona obockensis (A–F, H–I from 39 chaetiger anterior fragment, proboscis not everted, both palps attached; G from posterior fragment; J–L from medial fragment; Syntypes, MNHN Type 1357) A, anterior region, dorsal view; B, prostomium, dorsal view; C–F, chaetigers 2, 3, 4 and 9 respectively (anterior views); G, posterior region, dorsal view; H, mucronate chaeta from inner chaetal margin of chaetiger 9, lateral view; I, same, from outer margin; J–L, tridentate abdominal hooded hooks, frontal, lateral and oblique views respectively (K—hood omitted for clarity).
FIGURE 10 in Magelonidae (Polychaeta) from the Arabian Peninsula: a review of known species, with notes on Magelona tinae from Thailand
FIGURE 10. Magelona pulchella (Holotype, BMNH:1969.391) A–C, methyl green staining patterns; A, anterior, dorsal view; B, anterior, ventral view; C, venter, between chaetigers 4 and 5.
FIGURE 9 in Magelonidae (Polychaeta) from the Arabian Peninsula: a review of known species, with notes on Magelona tinae from Thailand
FIGURE 9. Magelona pulchella (Holotype, BMNH:1969.391) A, anterior region, dorsal view, methyl green staining between chaetigers 2 and 3 shown; B, prostomium, dorsal view; C–J, chaetigers 1, 2, 4, 6, 7, 8, 9 and 10 respectively (anterior views); K, posterior region, dorsal view.
FIGURE 4 in Magelonidae (Polychaeta) from the Arabian Peninsula: a review of known species, with notes on Magelona tinae from Thailand
FIGURE 4. Magelona obockensis (40 chaetiger medial fragment, Syntype, MNHN Type 1357) medial chaetiger, lateral view, showing a posterior open 'pouch' and several eggs.
FIGURE 5 in Magelonidae (Polychaeta) from the Arabian Peninsula: a review of known species, with notes on Magelona tinae from Thailand
FIGURE 5. Magelona heteropoda (Holotype, BMNH:ZB.1971.54) A, anterior region, dorsal view, interparapodial abdominal glandular areas marked; B–G, chaetigers 1, 4, 5, 6, 8 and 9 respectively (anterior views); H, right notopodia from chaetiger 9.
FIGURE 8 in Magelonidae (Polychaeta) from the Arabian Peninsula: a review of known species, with notes on Magelona tinae from Thailand
FIGURE 8. Magelona heteropoda (Holotype, BMNH:ZB.1971.54) medial fragment, lateral view, showing convoluted posteriorly open pouch; eggs apparent.
FIGURE 3 in Magelonidae (Polychaeta) from the Arabian Peninsula: a review of known species, with notes on Magelona tinae from Thailand
FIGURE 3. Magelona obockensis (39 chaetiger anterior fragment, proboscis not everted, both palps attached, Syntype, MNHN Type 1357) venter between chaetigers 6 and 9, showing a conspicuous oval swelling at the junction of chaetiger 8, and paired reniform swellings at chaetigers 6 and 7.
FIGURE 17 in New records and new species of Magelonidae (Polychaeta) from the Arabian Peninsula, with a re-description of Magelona pacifica and a discussion on the magelonid buccal region
FIGURE 17. Location of the different species of Magelona within the study area: (M) M. montera sp. nov.; (S) M. sinbadi sp. nov.; (A) M. cf. agoensis; (I) M. cf. cincta; (O) M. conversa; (R) M. crenulifrons; (F) M. cf. falcifera; (Y) M. symmetrica.
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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.