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59 results for “Cape Floristic Region”
FIGURES 1–4 in Two new relict Syncordulia species found during museum and field studies of threatened dragonflies in the Cape Floristic Region (Odonata: Corduliidae)
FIGURES 1–4. Syncordulia male abdomen in dorsal (above) and lateral (below) view. (1) S. gracilis; (2) S. legator n. sp.; (3) S. venator; (4) S. serendipator n. sp.
FIGURE 7 in A new redfin species, Pseudobarbus skeltoni (Cyprinidae, Teleostei), from the Cape Floristic Region, South Africa
FIGURE 7. Pictures showing localities and habitat where specimens of Pseudobarbus skeltoni were collected: (A) upper Riviersonderend (note the foot bridge of hiking trail crossing the river just below the gauging weir), and (B) Krom River.
FIGURE 6 in A new redfin species, Pseudobarbus skeltoni (Cyprinidae, Teleostei), from the Cape Floristic Region, South Africa
FIGURE 6. Map of the Breede River system in the south-western Cape Floristic Region of South Africa showing the distribution of Pseudobarbus skeltoni sp. nov. Individuals of this species were previously collected from the Wit River in 1975, but have not been found in recent surveys. The upper Riviersonderend is the type locality.
FIGURE 4 in A new redfin species, Pseudobarbus skeltoni (Cyprinidae, Teleostei), from the Cape Floristic Region, South Africa
FIGURE 4. Lateral view of the heads of (a) P. skeltoni sp. nov. (holotype, SAIAB 187243, 158.2 mm SL), (b) P. burchelli (neotype, SAIAB 126387, 95.9 mm SL) and (c) P. burgi (PG2076, 93.5 mm SL). Note the position of mouth, and a large eye relative to head length in P. burchelli and P. burgi. Also note the clear differences in tubercle expression of mature males of the three species.
FIGURE 5 in A new redfin species, Pseudobarbus skeltoni (Cyprinidae, Teleostei), from the Cape Floristic Region, South Africa
FIGURE 5. Ventral view showing the difference in the mouth forms of (A) P. burchelli (specimen from RUSI 058390), (B) P. burgi (specimen from SAIAB 186124) and (C) P. skeltoni sp. nov. subadult (specimen from SAIAB 187241). Both P. burgi and P. burchelli have retracted lips exposing a cartilaginous plate, but lips are unretracted in P. skeltoni and cartilaginous plate is absent (based on seven specimens examined).
FIGURE 3 in A new redfin species, Pseudobarbus skeltoni (Cyprinidae, Teleostei), from the Cape Floristic Region, South Africa
FIGURE 3. Pseudobarbus skeltoni sp. nov. (holotype, SAIAB 187243, 158.2 mm SL): A. illustration by Elain Heemstra of SAIAB; B. lateral view showing live colouration; and C. lateral view showing colouration of alcohol preserved specimen.
FIGURE 2 in A new redfin species, Pseudobarbus skeltoni (Cyprinidae, Teleostei), from the Cape Floristic Region, South Africa
FIGURE 2. Scatter plot of PCI against PCII for a PCA carried out on 14 normalised morphometric and seven raw meristic characters for all examined specimens (n = 245). The cluster of P. skeltoni sp. nov include 12 recently collected specimens from the Riviersonderend and Krom Rivers as well as 11 specimens from two samples collected in the Wit River (see text for details).
FIGURE 1 in A new redfin species, Pseudobarbus skeltoni (Cyprinidae, Teleostei), from the Cape Floristic Region, South Africa
FIGURE 1. Bayesian phylogram with Bayesian posterior probabilities, showing the genetic distance between Pseudobarbus skeltoni sp. nov. compared to all other Pseudobarbus lineages. Although phylogenetic relationships among Pseudobarbus lineages should be based on Swartz et al. (2009) due to more data that were analysed, it is clear from the present study that P. skeltoni is closely related to Pseudobarbus lineages that have two distinct pairs of barbels. More genes will have to be analysed to resolve the phylogenetic relationships within this group.
Reduced visitation to buzz-pollinated Cyanella hyacinthoides in the presence of other pollen sources in the hyperdiverse Cape Floristic Region
<p>Many plant species have floral morphologies that restrict access to floral resources, such as pollen or nectar, and only a subset of floral visitors can perform the handling behaviours required to extract restricted resources. Due to the time and energy required to extract resources from morphologically complex flowers, these plant species potentially compete for pollinators with co-flowering plants that have more easily accessible resources. A widespread floral mechanism restricting access to pollen is the presence of tubular anthers that open through small pores or slits (poricidal anthers). Some bees have evolved the capacity to remove pollen from poricidal anthers using vibrations, giving rise to the phenomenon of buzz-pollination. These bee vibrations that are produced for pollen extraction are presumably energetically costly, and to date, few studies have investigated whether buzz-pollinated flowers may be at a disadvantage when competing for pollinators' attention with plant species that present unrestricted pollen resources. Here, we studied Cyanella hyacinthoides (Tecophilaeaceae), a geophyte with poricidal anthers in the hyperdiverse Cape Floristic Region of South Africa, to assess how the composition and relative abundance of flowers with easily accessible pollen affect bee visitation to a buzz-pollinated plant. We found that the number of pollinator species was not influenced by community composition. However, visitation rates to C. hyacinthoides were reduced when the relative abundances of flowers with more accessible resources were high. Visitation rates were strongly associated with petal colour, showing that flower colour is important in mediating these interactions. We conclude that buzz-pollinated plants might be at a competitive disadvantage when many easily accessible pollen sources are available, particularly when competitor species share its floral signals.</p>
FIGURE 2 in Three new species in the genus Ficinia (Cyperaceae, tribe Cypereae) from the Greater Cape Floristic Region of South Africa
FIGURE 2. Distribution of the three species mapped at the centroid of each quarter degree square. Symbols used for F. bolusiana (circle), F. stirtonii (triangle), F. swartruggensis (square).
FIGURE 3. Ficinia stirtonii. A. Habit. B. Leaf blade and sheath. C. Inflorescence. D in Three new species in the genus Ficinia (Cyperaceae, tribe Cypereae) from the Greater Cape Floristic Region of South Africa
FIGURE 3. Ficinia stirtonii. A. Habit. B. Leaf blade and sheath. C. Inflorescence. D. Glume. Artist: Kay-Leigh Kilian, based on A.M. Muasya & C.H. Stirton 5240 (BOL).
FIGURE 1. Ficinia bolusiana. A. Habit. B. Leaf blade and sheath. C. Inflorescence. D in Three new species in the genus Ficinia (Cyperaceae, tribe Cypereae) from the Greater Cape Floristic Region of South Africa
FIGURE 1. Ficinia bolusiana. A. Habit. B. Leaf blade and sheath. C. Inflorescence. D. Glume. Artist: Kay-Leigh Kilian, based on A.M. Muasya & C.H. Stirton 5908 (BOL).
FIGURE 4. Ficinia stirtonii photographs. A, B. Habit. C. Rhizome. D in Three new species in the genus Ficinia (Cyperaceae, tribe Cypereae) from the Greater Cape Floristic Region of South Africa
FIGURE 4. Ficinia stirtonii photographs. A, B. Habit. C. Rhizome. D. Inflorescence. Photographs by C.H. Stirton at Nuwekloof Pass.
FIGURE 5 in Two new species of Oxalis (Oxalidaceae) from the Greater Cape Floristic Region
FIGURE 5. Fluorescence histograms showing simultaneous analysis of a) O. filifoliolata and its closest relative O. flava (differing ~20% in their genome sizes); and b) O. carolina and morphologically most similar O. tomentosa (differing ~80% in their genome sizes).
FIGURE 1. Oxalis carolina. a in Two new species of Oxalis (Oxalidaceae) from the Greater Cape Floristic Region
FIGURE 1. Oxalis carolina. a. flowering individual in spring; b. bulb; c. sterile plant in autumn; d. pollen.
FIGURE 3 in Two new species of Oxalis (Oxalidaceae) from the Greater Cape Floristic Region
FIGURE 3. Phylogenetic placement of a) Oxalis carolina based on ITS and trnL-trnL-trnF sequence data; and b) O. filifoliolata based on ITS sequence data. All trees presented are Bayesian 50% majority-rule consensus trees. Numbers below the branches indicate Bayesian Posterior Probability values, numbers above the branches refer to Parsimony Bootstrap values. The new taxa are highlighted in larger, bold font. The shading in a) indicates the O. tomentosa alliance.
FIGURE 4. Oxalis filifoliolata. a in Two new species of Oxalis (Oxalidaceae) from the Greater Cape Floristic Region
FIGURE 4. Oxalis filifoliolata. a. illustration; b. flowering individual in its natural habitat; c. pollen.
Data from: Dissecting biodiversity in a global hotspot: uneven dynamics of immigration and diversification within the Cape Floristic Region of South Africa
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Reduced visitation to buzz-pollinated Cyanella hyacinthoides in the presence of other pollen sources in the hyperdiverse Cape Floristic Region
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Data from: Topography as a driver of diversification in the Cape Floristic Region of South Africa
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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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.