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.
119
datasets available to search
ShareScore release 0.9.0
Dataset results
119 results for “Uca”
Figure 1a in Redescription of the megalopa of the fiddler crab Uca uruguayensis (Decapoda, Brachyura, Ocypodidae) with special emphasis on its setae
Figure 1a. Dorsal view of the megalopa of Uca uruguayensis. Scale bar: 500 mm.
Figure 4 in Comparative population biology of Uca rapax (Smith, 1870) (Brachyura, Ocypodidae) from two subtropical mangrove habitats on the Brazilian coast
Figure 4. Uca rapax. Monthly size–frequency distributions for the Ubatumirim population.
Figure 3 in Comparative population biology of Uca rapax (Smith, 1870) (Brachyura, Ocypodidae) from two subtropical mangrove habitats on the Brazilian coast
Figure 3. Uca rapax. Monthly size–frequency distributions for the Itamambuca population.
Fig. 2 in Systematics of the family Ocypodidae Rafinesque, 1815 (Crustacea: Brachyura), based on phylogenetic relationships, with a reorganization of subfamily rankings and a review of the taxonomic status of Uca Leach, 1814, sensu lato and its subgenera
Fig. 2. cont'd above.
Data from: Constraints on geographic variation in fiddler crabs (Ocypodidae: Uca) from the western Atlantic
A key question in evolutionary biology is how intraspecific variation biases the evolution of a population and its divergence from other populations. Such constraints potentially limit the extent to which populations respond to selection, but may endure long enough to have macroevolutionary consequences. Previous studies have focused on the association between covariation patterns and divergence among isolated populations. Few have focused on geographic variation among semi-connected populations, however, even though this may be indicative of early selective pressures that could lead to long-term divergence and speciation. Here, we test whether covariation in the shape of the carapace of fiddler crabs (genus Uca Leach, 1814) is important for structuring geographic variation. We find that morphological divergence among populations is associated with evolvability in the direction of divergence in only a few species. The shape of the ancestral covariation matrix in these species differs from other species in having notably more variation concentrated along fewer directions (i.e., higher eccentricity). For most species, there is some evidence that covariation has constrained the range of directions into which populations have diverged but not the degree of divergence. These results suggest that even though fiddler crab populations have diverged morphologically in directions predicted by covariation, constraints on the extent to which divergence has occurred may only be manifested in species where variation patterns are eccentric enough to limit populations' ability to respond effectively in many directions.
FIGURE 5. A, B in Uca jocelynae sp. nov., a new species of fiddler crab (Crustacea: Brachyura: Ocypodidae) from the Western Pacific
FIGURE 5. A, B, habitus and major chela of the holotypes of Mesuca (Latuca) neocultrimana Bott, 1973 (SMF-5654); C, D, habitus and major chela of the holotypes of Uca (Thalassuca) vocans pacificensis Crane, 1973 (USNM 137670); E, F, major chelae of Uca vocans (Linnaeus, 1758); G, H, major chelae of Uca borealis Crane, 1975.
FIGURE 1 in Uca jocelynae sp. nov., a new species of fiddler crab (Crustacea: Brachyura: Ocypodidae) from the Western Pacific
FIGURE 1. Collection sites for species of the Uca vocans complex used in our study: red circles (nos. 1–9) for U. jocelynae sp. nov.; blue triangles (nos. 10–11) for U. neocultrimana; green squares (nos. 12–18) for other species (Table 1). Gray circles and triangle (with nos. 19–28) mean the additional records of U. jocelynae and U. neocultrimana, respectively, from other references (Bott 1973; Crane 1975; Barnwell 1982; Minemizu 2000): 19, Kume I. in the Ryukyus; 20, Sulu in Philippines; 21, Zamboanga in Philippines; 22, Davao in Philippines; 23, Halmahera in Sulawesi; 24, Ambon in Indonesia; 25, Palau; 26, Madang in New Guinea; 27, Marshall; 28, Samoa. Different lines indicate the updated range of the two species.
FIGURE 6. A in Uca jocelynae sp. nov., a new species of fiddler crab (Crustacea: Brachyura: Ocypodidae) from the Western Pacific
FIGURE 6. A neighbor-joining (NJ) tree of species of the Uca vocans complex from the Indo-West Pacific and outgroups, based on 1193 bp of the combined 16S rRNA and COI genes. Probability values at the nodes represent support values for NJ, maximum parsimony (MP) and Bayesian inference (BI). **, *, holotype and paratype of U. jocelynae sp. nov., respectively. For haplotype names, see Table 1.
FIGURE 4 in Uca jocelynae sp. nov., a new species of fiddler crab (Crustacea: Brachyura: Ocypodidae) from the Western Pacific
FIGURE 4. Uca jocelynae sp. nov. Variation of the live coloration. A–E, adult males; F, adult female; G, H, young males.
FIGURE 2 in Uca jocelynae sp. nov., a new species of fiddler crab (Crustacea: Brachyura: Ocypodidae) from the Western Pacific
FIGURE 2. Uca jocelynae sp. nov. A-D, holotype (NMNS-6177-001). A, habitus, dorsal view; B, ventral view; C, major chela; D, frontal view; E, F, major chelae with live coloration.
FIGURE 3 in Uca jocelynae sp. nov., a new species of fiddler crab (Crustacea: Brachyura: Ocypodidae) from the Western Pacific
FIGURE 3. Uca jocelynae sp. nov. and U. neocultrimana (Bott, 1973). A, B, D–F, holotype of U. jocelynae (NMNS- 6177-001); C, U. jocelynae (RUMF-ZC-1076); G–I, holotype of U. neocultrimana. A, left third maxilliped; B, abdomen and telson; C, right vulva; D, G, right G1, lateral view; E, H; distal part of right G1, lateral view; F, I; distal part of right G1, mesial view. Scales = 1 mm.
FIGURE 17 in Taxonomic revision of the wide-front fiddler crabs of the Uca lactea group (Crustacea: Decapoda: Brachyura: Ocypodidae) in the Indo-West Pacific
FIGURE 17. Uca perplexa (H. Milne Edwards, 1852). male (ZMG 99), Indonesia, Moluccas. Tooth plates of the gastric mill: a, median tooth plate, ventral face; b, lateral tooth plate, mesial face.
FIGURES 16 in Taxonomic revision of the wide-front fiddler crabs of the Uca lactea group (Crustacea: Decapoda: Brachyura: Ocypodidae) in the Indo-West Pacific
FIGURES 16. Uca perplexa (H. Milne Edwards, 1852): a, male (UZM), Indonesia, Soelyi; b–f, male (UZM]), Cambodia, Lam Ngob; g, female (SMF 17146) Japan, Ryukyu Islands. a, major chela, outer surface. b, major chela, outer surface; c, major chela, inner surface; d, G1, lateral surface; e, apical part of G1, lateral surface; f, apical part of G1, mesial surface; g, genital opening of female.
FIGURE 14 in Taxonomic revision of the wide-front fiddler crabs of the Uca lactea group (Crustacea: Decapoda: Brachyura: Ocypodidae) in the Indo-West Pacific
FIGURE 14. Median tooth of the gastric mill, ventral face. a, Uca lactea (De Haan, 1835), male (SMF 17161); b, Uca mjoebergi Rathbun, 1924, male (SMF 17163).
FIGURE 18 in Taxonomic revision of the wide-front fiddler crabs of the Uca lactea group (Crustacea: Decapoda: Brachyura: Ocypodidae) in the Indo-West Pacific
FIGURE 18. Uca lactea (De Haan, 1835): a, b, Japan, Wakayama Prefecture, Wakayama City Waka River estuary; b, anterior view; c–f, Uca perplexa (H. Milne Edwards, 1852): c, Japan, Ryukyu Islands, Iriomote Island, Urauchi River estuary; d, the same specimen in displaying position; e, Indonesia, Papua, Mimika; f, posterior view. Photo credits: a, b by T. Koga (Wakayama University, Japan); c, d by S. Komai (Natural History Museum and Institute, Chiba, Japan); e, f by A. Darmawan (Indonesian Institute of Sciences).
FIGURE 13. Uca mjoebergi Rathbun, 1924. a–e in Taxonomic revision of the wide-front fiddler crabs of the Uca lactea group (Crustacea: Decapoda: Brachyura: Ocypodidae) in the Indo-West Pacific
FIGURE 13. Uca mjoebergi Rathbun, 1924. a–e, male (SMF 17156), Western Australia, 1 km E. Onslow; f–i, males (ZUM), Banda Islands; j, female (SMF 17155), Western Australia, Broome. a, merus of major chela, outer surface; b, merus of major chela, inner surface; c, major chela, outer surface; d, major chela, inner surface; e, G1, lateral surface. f, g, h, i, apical part of G1, lateral surface; j, genital opening of female.
FIGURE 12 in Taxonomic revision of the wide-front fiddler crabs of the Uca lactea group (Crustacea: Decapoda: Brachyura: Ocypodidae) in the Indo-West Pacific
FIGURE 12. Uca annulipes (H. Milne Edwards, 1837): a, b, Mozambique, Inhaca Island; c, Thailand, Phuket, Ao Tang Kheng. d–f, Uca mjoebergi Rathbun, 1924: d, Indonesia, Sulawesi Tenggara; e, f, Australia, Darwin Island;. Photos credits: a, b, e, f by T. Detto (The Australian National University); c by S. Komai (Natural History Museum and Institute, Chiba, Japan); d by R.S.K. Barnes (Cambridge University).
FIGURE 11 in Taxonomic revision of the wide-front fiddler crabs of the Uca lactea group (Crustacea: Decapoda: Brachyura: Ocypodidae) in the Indo-West Pacific
FIGURE 11. Uca lactea (De Haan, 1835): a, female (SMF 17159) Taiwan; b, c, paralectotype male (ZMG 105), Japan; a, genital opening; b, apical part of G1, lateral surface; c, apical part of G1, mesial surface.
FIGURE 15 in Taxonomic revision of the wide-front fiddler crabs of the Uca lactea group (Crustacea: Decapoda: Brachyura: Ocypodidae) in the Indo-West Pacific
FIGURE 15. Lateral tooth of the gastric mill, mesial face. a, Uca lactea (De Haan, 1835), male (SMF 17161); b, Uca mjoebergi Rathbun, 1924, male (SMF 17163).
FIGURE 10 in Taxonomic revision of the wide-front fiddler crabs of the Uca lactea group (Crustacea: Decapoda: Brachyura: Ocypodidae) in the Indo-West Pacific
FIGURE 10. Uca lactea (De Haan, 1835): a, b, c, f, paralectotype male (ZMG 105), Japan; d, e, male (SMF 1813), Taiwan: a, infraorbital region; b, major chela, inner surface; c, major chela, outer surface; d, major chela, inner surface; e, major chela, outer surface; f, G1, lateral surface.
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.