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351 results for “Species pair”
Fig. 4 Model 2 in Modelling sympatric speciation by means of biologically plausible mechanistic processes as exemplified by threespine stickleback species pairs
Fig. 4 Model 2. Typical distribution of T, the phenotypic values, at generation 100. Nm = Nf =100; σ =0.5; Τ= 0.5; μ = 1%; n =256 alleles. Only 10 out of 200 (5%) individuals are hybrids. Similar results were obtained in 10 out of 20 replicate simulations with Τ =0.5, and in ten out of ten replicate simulations with Τ =0.25
Fig. 7 Model 5 in Modelling sympatric speciation by means of biologically plausible mechanistic processes as exemplified by threespine stickleback species pairs
Fig. 7 Model 5: Reinforcement of divergent mating preferences. Columns: 1 Typical distribution of morphology alleles, 2 typical distribution of preference alleles, 3 typical distribution of morphology phenotypes T. Rows: 1 Generation 0, 2 generation 100, 3 generation 200. At generation 100, 92% of individuals have either all benthic alleles at both loci, or all limnetic alleles at both loci. At generation
Fig. 2 in Modelling sympatric speciation by means of biologically plausible mechanistic processes as exemplified by threespine stickleback species pairs
Fig. 2 Relative fitness is a function of morphology T. Here fitness ¼ sinð 2p»TÞ 2 þ 1 (relative fitness varies between 1 and 2, i.e. two-fold). In model 3, we used a flat fitness function: fitness=1. In model 5, we used the above fitness function, well fitness ¼ sinð 2p»TÞ 2 þ 0: 5 as as: (relative fitness varies between 0.5 and 1.5, i.e. a threefold selection differential), and fitness ¼ sinð 2p»TÞ 2 þ 0: 25 (relative fitness varies between 0.25 and 1.25, i.e. a five-fold selection differential)
indicate the active NORs on pair 8 in Comparative chromosomal studies in Rhinolophus formosae and R. luctus from China and Vietnam: elevation of R. l. lanosus to species rank
indicate the active NORs on pair 8
FIGURE 205 in Pairing of sexual and asexual generations of Nearctic oak gallwasps, with new synonyms and new species names (Hymenoptera: Cynipidae, Cynipini)
FIGURE 205. Phylloteras poculum (Osten Sacken), asexual female, general habitus.
FIGURES 79–81 in Pairing of sexual and asexual generations of Nearctic oak gallwasps, with new synonyms and new species names (Hymenoptera: Cynipidae, Cynipini)
FIGURES 79–81. Antron quercusnubila (Bassett). 79, asexual gall. 80–81, sexual gall.
FIGURES 12–13 in Pairing of sexual and asexual generations of Nearctic oak gallwasps, with new synonyms and new species names (Hymenoptera: Cynipidae, Cynipini)
FIGURES 12–13. Acraspis quercushirta (Bassett). 12, asexual gall. 13, sexual gall.
FIGURES 37a–f in Revision of the Old World species of the genus Tephritis (Diptera, Tephritidae) with a pair of isolated apical spots
FIGURES 37a–f. Tephritis youngiana new species: a—Paratype, habitus ♂; b–f—wing. Scale bar = 1 mm.
FIGURES 20a–d in Revision of the Old World species of the genus Tephritis (Diptera, Tephritidae) with a pair of isolated apical spots
FIGURES 20a–d. Tephritis kogardtauica: a—habitus (neotype) ♀—b–d—wing. Scale bar = 1 mm.
FIGURES 20a–d in Revision of the Old World species of the genus Tephritis (Diptera, Tephritidae) with a pair of isolated apical spots
FIGURES 20a–d. Tephritis kogardtauica: a—habitus (neotype) ♀—b–d—wing. Scale bar = 1 mm.
FIGURES 9a–d in Revision of the Old World species of the genus Tephritis (Diptera, Tephritidae) with a pair of isolated apical spots
FIGURES 9a–d. Tephritis dilacerata dilacerata: a—lectotype ♀ habitus; b–d—wings; bar = 1 mm.
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.