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.
13,587
datasets available to search
ShareScore release 0.9.0
Dataset results
13,587 results for “specification”
F in Seed-infesting chalcids of the genus Megastigmus Dalman, 1820 (Hymenoptera: Torymidae) native and introduced to the West Palearctic region: taxonomy, host specificity and distribution
F 136–144. Electroscan photographs of scutellum of female Megastigmus. (136) M. rafni; (137) M. rosae, Bulgaria; (138) M. schimitscheki; (139) M. specularis; (140) M. spermotrophus; (141) M. strobilobius; (142) M. suspectus; (143) M. transvaalensis; (144) M. wachtli. Same origins as in (23–31). Scale bars=100 mm, except for (138, 142). Scale bars=200 mm.
F in Seed-infesting chalcids of the genus Megastigmus Dalman, 1820 (Hymenoptera: Torymidae) native and introduced to the West Palearctic region: taxonomy, host specificity and distribution
F 154–162. Electroscan photographs of scutellum of male Megastigmus. (154) M. pistaciae; (155) M. rafni; (156) M. schimitscheki; (157) M. specularis; (158) M. spermotrophus; (159) M. strobilobius; (160) M. suspectus; (161) M. transvaalensis; (162) M. wachtli. Same origins as in (39–47). Scale bars=100 mm.
F in Seed-infesting chalcids of the genus Megastigmus Dalman, 1820 (Hymenoptera: Torymidae) native and introduced to the West Palearctic region: taxonomy, host specificity and distribution
F 107–114. Male genitalia of Megastigmus seed chalcids. (107) M. aculeatus; (108) M. amicorum; (109) M. atedius; (110) M. bipunctatus; (111) M. milleri; (112) M. nigrovariegatus; (113) M. pictus; (114) M. pinsapinis. Same origins as in (32–37, 76). Scale bar=100 mm.
F in Seed-infesting chalcids of the genus Megastigmus Dalman, 1820 (Hymenoptera: Torymidae) native and introduced to the West Palearctic region: taxonomy, host specificity and distribution
F 48–59. Female stigma of Megastigmus seed chalcids. (48) M. aculeatus; (49) M. amicorum; (50) M. atedius; (51) M. atlanticus, ex. Cupressus atlantica, Morocco; (52) M. bipunctatus; (53) M. brevicaudis; (54) M. milleri; (55) M. nigrovariegatus; (56) M. pictus; (57) M. pinsapinis; (58) M. pinus; (59) M. pistaciae. Same origins as in (11–22). Scale bars=100 mm, except for (58)=50 mm.
F in Seed-infesting chalcids of the genus Megastigmus Dalman, 1820 (Hymenoptera: Torymidae) native and introduced to the West Palearctic region: taxonomy, host specificity and distribution
F 32–39. Male antenna of Megastigmus. (32) M. aculeatus, France; (33) M. amicorum, Portugal; (34) M. atedius, France; (35) M. bipunctatus, France; (36) M. milleri, the Netherlands; (37) M. pictus, Poland; (38) M. pinus, France; (39) M. pistaciae, Italy. Scale bar=200 mm.
F in Seed-infesting chalcids of the genus Megastigmus Dalman, 1820 (Hymenoptera: Torymidae) native and introduced to the West Palearctic region: taxonomy, host specificity and distribution
F 22–31. Female antenna of Megastigmus. (22) M. pistaciae, Croatia; (23) M. rafni, France; (24) M. rosae, France; (25) M. schimitscheki, Lebanon; (26) M. specularis, Finland; (27) M. spermotrophus, France; (28) M. strobilobius, Poland; (29) M. suspectus, France; (30) M. transvaalensis, Morocco; (31) M. wachtli, Greece. Scale bar=200 mm.
F in Seed-infesting chalcids of the genus Megastigmus Dalman, 1820 (Hymenoptera: Torymidae) native and introduced to the West Palearctic region: taxonomy, host specificity and distribution
F 69–77. Male stigma of Megastigmus seed chalcids. (69) M. aculeatus; (70) M. amicorum; (71) M. atedius; (72) M. bipunctatus; (73) M. milleri; (74) M. nigrovariegatus, France; (75) M. pictus; (76) M. pinsapinis, Mt Ventoux, France; (77) M. pinus. Same origins as in (32–38). Scale bars=100 mm, except for (70)=200 mm.
F in Seed-infesting chalcids of the genus Megastigmus Dalman, 1820 (Hymenoptera: Torymidae) native and introduced to the West Palearctic region: taxonomy, host specificity and distribution
F 60–68. Female stigma of Megastigmus seed chalcids. (60) M. rafni; (61) M. rosae, Poland; (62) M. schimitscheki; (63) M. specularis; (64) M. spermotrophus; (65) M. strobilobius; (66) M. suspectus; (67) M. transvaalensis; (68) M. wachtli. Same origins as in (23–31). Scale bars=100 mm.
F in Seed-infesting chalcids of the genus Megastigmus Dalman, 1820 (Hymenoptera: Torymidae) native and introduced to the West Palearctic region: taxonomy, host specificity and distribution
F 97–106. Female ovipositor of Megastigmus seed chalcids. (97) M. pinus; (98) M. rafni; (99) M. rosae, France; (100) M. schimitscheki; (101) M. specularis; (102) M. spermotrophus; (103) M. strobilobius; (104) M. suspectus; (105) M. transvaalensis; (106) M. wachtli. Same origins as in (21–31). Scale bar=20 mm.
F in Seed-infesting chalcids of the genus Megastigmus Dalman, 1820 (Hymenoptera: Torymidae) native and introduced to the West Palearctic region: taxonomy, host specificity and distribution
F 87–96. Female ovipositor of Megastigmus seed chalcids. (87) M. aculeatus; (88) M. amicorum; (89) M. atedius; (90) M. atlanticus; (91) M. bipunctatus; (92) M. brevicaudis; (93) M. milleri; (94) M. nigrovariegatus; (95) M. pictus; (96) M. pinsapinis. Same origins as in (11–20). Scale bar=20 mm.
FIGURE 17 in Specific limits and emerging diversity patterns in East African populations of laminate-toothed rats, genus Otomys (Muridae: Murinae: Otomyini): Revision of the Otomys typus complex 3024
FIGURE 17(d–f). Photographs comparing dorsal, ventral and lateral views of the skulls of holotype of O. simiensis (ZMMU 178757).
FIGURE 1 in Specific separation of Polypedates braueri (Vogt, 1911) from P. megacephalus (Hallowell, 1861) (Amphibia: Anura: Rhacophoridae)
FIGURE 1. Bayesian tree of 2393 bp of 12S rRNA, tRNAval, and 16S rRNA mitochondrial genes for samples of Polypedates species. Numbers above branches represent bootstrap supports for MP and ML inferences, and Bayesian posterior probability (MP-BS/ML-BS/BPP).
FIGURE 4 in Specific separation of Polypedates braueri (Vogt, 1911) from P. megacephalus (Hallowell, 1861) (Amphibia: Anura: Rhacophoridae)
FIGURE 4. Dorsal (A) and ventral (B) views of male lectotype of Rhacophorus braueri (now Polypedates braueri: ZMB 21945, SVL = 49.1 mm). Scale bar = 10 mm.
Sex-specific genetic (co)variances of standard metabolic rate, body mass and locomotor activity in Drosophila melanogaster
<p>A longstanding focus in evolutionary physiology concerns the causes and consequences of variation in maintenance metabolism. Insight into this can be gained by estimating the sex-specific genetic architecture of maintenance metabolism alongside other, potentially correlated traits on which selection may also act, such as body mass and locomotor activity. This may reveal potential genetic constraints affecting the evolution of maintenance metabolism. Here, we used a half-sibling breeding design to quantify the sex-specific patterns of genetic (co)variance in standard metabolic rate (SMR), body mass, and daily locomotor activity in <i>Drosophila melanogaster</i>. There was detectable additive genetic variance for all traits in both sexes. As expected, SMR and body mass were strongly and positively correlated, with genetic allometry exponents (<i>b</i><sub>A</sub>±se) of 0.66±0.16 in females and 0.58±0.32 in males. There was a significant and positive genetic correlation between SMR and locomotor activity in males, suggesting that alleles that increase locomotion have pleiotropic effects on SMR. Sexual differences in the genetic architecture were driven in large part by a difference in genetic variance in locomotor activity between the sexes. Overall, genetic variation was mostly shared between males and females, setting the stage for a potential intralocus sexual conflict in the face of sexually antagonistic selection.</p>
Sex-specific responses to intraspecific competition in the mosquitofish Gambusia holbrooki
<p>Intraspecific competition constitutes an important source of selection that can influence the development, expression and evolution of phenotypic traits. Although often neglected in studies of intraspecific competition, the sex of competitors can alter the nature and intensity of competition between individuals, and in turn can influence the development of resource-dependent traits. We examine here how the sex of focal and of competitor individuals interact to affect developmental responses to competition in the Eastern mosquitofish <i>Gambusia holbrooki</i>. We raised individuals of both sexes either alone or in the presence of a male or female competitor, and measured their juvenile growth rate, time to maturity and size at maturity; for males we also measured their gonopodium length, sperm quantity, and sperm velocity. We found that plastic phenotypic responses to competition were dependent on the sex of the focal individual, the sex of their competitor and sometimes an interaction between the two. When there was a competitor present, regardless of its sex, males had slower growth rates and took longer to mature, but eventually matured at the same size. Like males, females also showed slower growth rates in the presence of a competitor, but in contrast to males, reached maturity sooner and at a smaller size than when there was no competitor present. Presence of a competitor influenced male sexual traits, however there was little evidence that these effects were mediated by the sex of the competitor. Males that were reared with competitors had longer gonopodia for their body size, as well as fewer and faster sperm. Overall our results suggest that the effects of competition on resource-dependent traits are different for males and females, potentially due to sex differences in adult life history strategies. Further, for males, both life history traits and sexual traits were influenced by competition. For life history traits this effect appears to result from decreased resources and/or increased energy expenditure, but for sexual traits, effects appear to be mediated, at least in part, by the social environment, which also differs in the presence of competitors.</p>
Experimental evolution reveals sex-specific dominance for surviving bacterial infection in laboratory populations of Drosophila melanogaster
<p>Males and females are subjected to distinct kinds of selection pressures, often leading to the evolution of sex-specific genetic architecture, an example being sex-specific dominance. Sex-specific dominance reversals (SSDRs), where alleles at sexually antagonistic loci are at least partially dominant in the sex they benefit, have been documented in Atlantic salmon, rainbow trout and beetles. Another interesting feature of many sexually reproducing organisms is the asymmetric inheritance pattern of X chromosomes, which often leads to distinct evolutionary outcomes on X chromosomes compared to autosomes. Examples include, the higher efficacy of sexually concordant selection on X chromosomes, and X chromosomes being more conducive to the maintenance of sexually antagonistic polymorphisms under certain conditions. Immunocompetence is a trait that has been extensively investigated for sexual dimorphism with growing evidence for sex-specific or sexually antagonistic variation. X chromosomes have been shown to harbour substantial immunity-related genetic variation in the fruit-fly, <i>Drosophila melanogaster</i>. Here, using interpopulation crosses and cytogenetic cloning, we investigated sex-specific dominance and the role of the X chromosome in improved post-infection survivorship of laboratory populations of <i>D. melanogaster</i> selected against pathogenic challenge by <i>Pseudomonas entomophila</i>. We could not detect any contribution of the X chromosome to the evolved immunocompetence of our selected populations as well as to within population variation in immunocompetence. However, we found strong evidence of sex-specific dominance related to surviving bacterial infection. Our results indicate that alleles that confer a survival advantage to the selected populations are, on average, partially dominant in females but partially recessive in males. This could also imply a sex-specific dominance reversal for overall fitness, given the putative evidence for sexually antagonistic selection affecting immunocompetence in <i>Drosophila melanogaster</i>. We also highlight sex-specific dominance as a potential mechanism of sex differences in immunocompetence, with population-level sex differences primarily driven by sex differences in heterozygotes.</p>
Fig. 2 in Host Specificity and Wood Density-Based Host Choice by Longhorn Beetles (Coleoptera: Cerambycidae) in a Panamanian Lowland Rainforest
Fig. 2. Monthly emergence numbers of longhorn beetles reared from branches cut and exposed in January 2013. Most adult emergences took place during the interphase of the dry season and rainy season, decreasing during the rest of the year.
Fig. 1 in Host Specificity and Wood Density-Based Host Choice by Longhorn Beetles (Coleoptera: Cerambycidae) in a Panamanian Lowland Rainforest
Fig. 1. Study site location in the Galeta Island Protected Area in the province of Colón on the Atlantic coast of Panama.
FIGURE 1 in Reinstatement of the independent specific status of Oldenlandia violacea (Rubiaceae) from the synonymy of O. monanthos
FIGURE 1: A, The type of O. violacea, Volkens 848 (E); B, The syntype of Oldenlandia monanthos, Quartin-Dillon s.n. (P). Photos from the JSTOR (https://www.jstor.org).
FIGURE 3 in Reinstatement of the independent specific status of Oldenlandia violacea (Rubiaceae) from the synonymy of O. monanthos
FIGURE 3. Maximum likelihood (ML) tree of Oldenlandia s.str. and the outgroup species, inferred from concatenated data set of two plastid DNA (petD, rps16) and two nuclear DNA (ITS, ETS). Bootstrap values (BS) ≥ 50% in ML analysis and posterior probabilities (PP) ≥ 0.50 in Bayesian inference (BI) are shown at nodes.
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.