Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
2,838
datasets available to search
ShareScore release 0.9.0
Dataset results
2,838 results for “species relationships”
Figure 10 in An overview of labeonin relationships and the phylogenetic placement of the Afro-Asian genus Garra Hamilton, 1922 (Teleostei: Cyprinidae), with the description of five new species of Garra from Ethiopia, and a key to all African species
Figure 10. Pectoral girdle and upper fin rays of (A) Garra dembeensis, and (B) Epalzeorhynchus munense.
Figure 1. Phylogenetic relationships among genera and species groups within Centrolenidae. A in Glass frogs (Centrolenidae) of Yanayacu Biological Station, Ecuador, with the description of a new species and comments on centrolenid systematics
Figure 1. Phylogenetic relationships among genera and species groups within Centrolenidae. A, tree topology suggested by Ruiz-Carranza & Lynch (1991a, b, c, 1996, 1998) and modified by Bolívar et al. (1999), Señaris (2001) and Duellman & Señaris (2003). B, single, most-parsimonious tree of the phylogenetic relationships of Centrolenidae (tree length = 13, CI = 0.923, RI = 0.9474, RC = 0.8745). Numbers refer to the following characters: (1) tibiale and fibulare, 0 = not fused, 1 = partially or completely fused; *(2) T-shaped terminal phalanges, 0 = absent, 1 = present; (3) dilated medial process on Metacarpal III, 0 = absent, 1 = present; (4) eggs deposition site, 0 = deposited in water, 1 = not deposited in water, 2 = deposited on underside of leaves; (5) shape of liver, 0 = liver lobed, 1 = liver bulbous; (6) humeral spine in males, 0 = absent, 1 = present; (7) relative size of disc of Finger III, 0 = disc small (<80% of eye diameter), 1 = disc large (> 80% of eye diameter); (8) coloration of hepatic peritoneum, 0 = clear, 1 = white; (9) coloration of peritoneum covering urinary blad- der, 0 = clear, 1 = white; (10) red heart visible in ventral view, 0 = heart not visible, 1 = red heart visible; (11) coloration of parietal peritoneum, 0 = white, 1 = clear. Character 12 (venter-to-venter fight behaviour) was hypothesized to be a synapomorphy shared by Centrolene and Cochranella (Bolívar et al., 1999); however, the distribution of this behaviour has been reported in only nine species (Guayasamin & Barrio-Amorós, 2005) and we did not include in B. Numbers next to tick marks represent bootstrap support values. Grey boxes denote characters that appear more than once in the tree. *T-shaped terminal phalanges are also present in Allophryne ruthveni.
Fig. 15 in A new genus and two new species of Stevardiinae (Characiformes: Characidae) with a hypothesis on their relationships based on morphological and histological data
Fig. 15. Histological section carried out through caudal-fin of Hysteronotus megalostomus (MZUSP 85978, 34.9 mm SL); A: 10x magnification; B: 40x magnification; sc = scales; mc = mucous cells; br = branched ray. Scale bar = 20 μm.
Fig. 14 in A new genus and two new species of Stevardiinae (Characiformes: Characidae) with a hypothesis on their relationships based on morphological and histological data
Fig. 14. Spermatozoa of Lepidocharax diamantina (MNRJ 21997, 34.7 mm SL) A: Longitudinal section of spermatozoa. Note the position of the nucleus (n) in relation to the flagellar axis, the position of the double nuclear fossa (double arrow), the midpiece and the cytoplasmic canal (*) into which is the initial segment of the flagellum (f). B-C: Cross sections at different levels of the nucleus showing large vesicles (v) in the surrounding cytoplasmic layer. D-F: Cross sections at different levels of the strongly asymmetric midpiece, from the base of the nucleus (n) to the midpiece end exposing the cytoplasmic canal (*) and the distribution of the few elongate mitochondria (m) accumulated in the major portion of the midpiece. G: Cross section of the flagella with the classic axoneme (a).
Fig. 12 in A new genus and two new species of Stevardiinae (Characiformes: Characidae) with a hypothesis on their relationships based on morphological and histological data
Fig. 12. Spermatozoa of Planaltina myersi (MZUSP 100642, 32.1 mm SL). A: Longitudinal section of spermatozoa. Note the lateral position of the nucleus (n) in relation to the flagellar axis, the midpiece and the cytoplasmic canal (*) into which is the initial segment of the flagellum (f). Inset: The proximal centriole is anterior and in an obtuse angle in relation to the distal centriole. Innumerable fibrils or striated centriolar rootlets radiate from the distal centriole (p), surround the tip of the nucleus forming a thick cap. B-E: Cross sections at different levels of the nucleus showing the lateral position of the distal centriole (c). F-G: Cross sections at different levels of the strongly asymmetric midpiece with some spherical mitochondria (m) accumulated in major portion.
Fig. 13 in A new genus and two new species of Stevardiinae (Characiformes: Characidae) with a hypothesis on their relationships based on morphological and histological data
Fig. 13. Spermatozoa of Lepidocharax burnsi (MCP 34828, paratype, 31.9 mm SL) A: Longitudinal section of spermatozoa. Note the lateral position of the nucleus (n) in relation to the flagellar axis, the midpiece and the cytoplasmic canal (*) into which is the initial segment of the flagellum (f). The distal and proximal centrioles are outside the single and shadow nuclear fossa. Inset: The centriolar complex is associated at the tip of the nucleus. B-D: Cross sections at different levels of the nucleus showing the lateral position of the distal centriole (c) and the flagellum (f). E-G: Cross sections at different levels of the strongly asymmetric midpiece with some spherical mitochondria (m) accumulated in the major portion. H: Cross section of the flagella with the classic axoneme (a).
Fig. 11 in A new genus and two new species of Stevardiinae (Characiformes: Characidae) with a hypothesis on their relationships based on morphological and histological data
Fig. 11. Light micrographs through mature ovaries of Lepidocharax. Arrows show spermatozoa (sp). A: Lepidocharax diamantina (MNRJ 21997, 40.4 mm SL). B: Lepidocharax burnsi (MCP 34828, 29.9 mm SL).
Fig. 16 in A new genus and two new species of Stevardiinae (Characiformes: Characidae) with a hypothesis on their relationships based on morphological and histological data
Fig. 16. Scanning electron micrograph of dorsal cranium region. Arrows evidencing the groove in the head above the eyes; A: Diapoma terofali (MCP 11491, 70x magnification) groove reduced, shallow, not well delineated and with only few neuromasts; B: Hysteronotus megalostomus (MZUSP 85978, 50x magnification) groove developed, depth, well delineated and with numerous neuromasts. Anterior to right.
Fig. 9. Lepidocharax burnsi, LIRP 2069 in A new genus and two new species of Stevardiinae (Characiformes: Characidae) with a hypothesis on their relationships based on morphological and histological data
Fig. 9. Lepidocharax burnsi, LIRP 2069, paratype, 34.0 mm SL, adult male. Upper and lower jaws, right side, lateral view. Scale bar = 1 mm.
Fig. 4. Lepidocharax diamantina, MNRJ 21997 in A new genus and two new species of Stevardiinae (Characiformes: Characidae) with a hypothesis on their relationships based on morphological and histological data
Fig. 4. Lepidocharax diamantina, MNRJ 21997, paratypes, 38.0 mm SL. Upper and lower jaws, left side, lateral view. Scale bar = 1 mm.
Fig. 7 in A new genus and two new species of Stevardiinae (Characiformes: Characidae) with a hypothesis on their relationships based on morphological and histological data
Fig. 7. Lepidocharax burnsi, holotype, female, MCP 45718, 34.4 mm SL: Brazil, Minas Gerais, Brumadinho, rio Paraopeba.
Fig. 5. Lepidocharax diamantina, MNRJ 21997 in A new genus and two new species of Stevardiinae (Characiformes: Characidae) with a hypothesis on their relationships based on morphological and histological data
Fig. 5. Lepidocharax diamantina, MNRJ 21997, paratypes, male, 32.3 mm SL. Caudal-fin squamation, lateral view, left side.
Fig. 3 in A new genus and two new species of Stevardiinae (Characiformes: Characidae) with a hypothesis on their relationships based on morphological and histological data
Fig. 3. Hooks on anal-fin rays of Lepidocharax diamantina, MNRJ 21997, paratypes, 38.0 mm SL, adult male.
Fig. 2 in A new genus and two new species of Stevardiinae (Characiformes: Characidae) with a hypothesis on their relationships based on morphological and histological data
Fig. 2. Lepidocharax diamantina, holotype, male, MNRJ 37509, 38.8 mm SL: Brazil, Bahia, Palmeiras, rio Santo Antônio.
Fig. 1 in A new genus and two new species of Stevardiinae (Characiformes: Characidae) with a hypothesis on their relationships based on morphological and histological data
Fig. 1. Maximally parsimonious hypothesis of relationships within the Lepidocharax based on 153 characters.
Fig. 3 in Can weight/length relationship predict size at first maturity? A case study with two species of Characidae
Fig. 3. Relationship between size at first maturity (L) and 50 maximum reported size for small characids (grey spots, bold line; data from Table 1). The thin line represents L values 50 estimated from maximum size following the general function of Froese & Binohlan (2000). Black spots are original data from the present study (SCL values).
Fig. 2 in Can weight/length relationship predict size at first maturity? A case study with two species of Characidae
Fig. 2. Weight/length relationship for Cheirodon ibicuhiensis (a); proportional residuals resulting from Huxley´s adjustment (b); weight/length relationship and proportional residuals distribution according to the polyphasic growth model (c and d, respectively).
Fig. 1 in Can weight/length relationship predict size at first maturity? A case study with two species of Characidae
Fig. 1. Weight/length relationship for Astyanax jacuhiensis (a); proportional residuals resulting from Huxley´s adjustment (b); weight/length relationship and proportional residuals distribution according to the polyphasic growth model (c and d, respectively).
Fig. 3 in Relationships between water transparency and abundance of Cynodontidae species in the Bananal floodplain, Mato Grosso, Brazil
Fig. 3. Cluster dendrogram based on relative abundance in biomass of Cynodontidae species and water transparency from 15 sampling sites in the Bananal floodplain, Mato Grosso, Brazil (UPGMA algorithm, Euclidian distance). See Table 1 for site codes.
Fig. 1 in Relationships between water transparency and abundance of Cynodontidae species in the Bananal floodplain, Mato Grosso, Brazil
Fig. 1. Partial map of South America showing the location of the study area in the Bananal floodplain. The detailed map depicts the sampling sites (circles) in the rios Araguaia and Mortes basins. See Table 1 for site codes.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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.