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711 results for “Cryptic species complex”
Fig. 8 in A new cryptic species of Cnemaspis Strauch, 1887 (Squamata: Gekkonidae), in the C. littoralis complex, from Anakkal, Palakkad, Kerala, India
Fig. 8. Habitat of Cnemaspis palakkadensis sp. nov. Photos by Amit Sayyed.
Supplementary datasets to: Molecular species delimitation and morphometry in the Melampus bidentatus (Panpulmonata, Ellobiidae) cryptic species complex
<p>The coffee bean snail <em>Melampus</em> <em>bidentatus</em> occurs in coastal salt marshes along the North American Atlantic and Gulf coasts and in the Caribbean. It was recently found that this large geographical span is actually occupied by a complex of three apparently cryptic species (preliminarily called "North", "South", and "Gulf") with partially overlapping distributions. Until now, it was not clear whether there are any morphological differences between the three species or which of the available names can be applied to e<span>ach </span>of the cryptic species. We used the already-known distribution patterns of the cryptic species as well as new barcode sequences to assign available names to the three cryptic species. We then compared morphological characters from 264 specimens using two approaches: an analysis based on 11 landmark points on the shell and another based on the entire shell outline. We were able to assign a nominal name to each of the three cryptic species: <em>Melampus</em> <em>bidentatus</em> for "North", <em>Melampus</em> <em>jaumei</em> for "South", and <em>Melampus</em> <em>gundlachi</em> for "Gulf". The morphometric analyses did not yield any diagnostic differentiating features; these cryptic species are hence diagnosable solely by genetic analysis but may phenotypically differ in some unseen internal features or in their physiology.</p>
Hetaerina SNPs data for: Genomic differentiation and niche divergence in the Hetaerina americana (Odonata) cryptic species complex
<p class="MsoNormalCxSpFirst"><span>The evolution of reproductive barriers, that is, the speciation process, implies the limitation of gene flow between populations. Different patterns of genomic differentiation throughout the speciation continuum may provide insights into the causal evolutionary forces of species divergence. In this study, we analyzed a cryptic species complex of the genus <em>Hetaerina</em> (Odonata). This complex includes <em>H. americana</em> and <em>H. calverti</em>; however, in <em>H. americana</em>, two highly differentiated genetic groups have been previously detected, which, we hypothesize, may correspond to different species with low morphological variation. We obtained single nucleotide polymorphism (SNP) data for 90 individuals belonging to the different taxa in the complex and carried out differentiation tests to identify genetic isolation. The results from STRUCTURE and discriminant analysis of principal components (DAPC), based on almost 5,000 SNPs, confirmed the presence of three highly differentiated taxa. Also, we found <em>F</em><sub>ST </sub>values above 0.5 in pairwise comparisons, which indicates a considerable degree of genetic isolation among the suggested species. We also found </span><span>low climatic niche overlap among all taxa, suggesting that each group occurs at specific conditions of temperature, precipitation and elevation</span><span>. We propose that <em>H. americana</em> comprises two cryptic species, which may be reproductively isolated by ecological barriers related to niche divergence, since the morphological variation is minimal and, therefore, mechanical barriers are probably less effective compared to other related species such as <em>H. calverti</em>.</span></p>
Data and code from Pierson et al. "Revisiting a cryptic species complex: interspecific gene flow among woodland salamanders in the Blue Ridge Mountains of northern Georgia"
<p>ABSTRACT</p> <p>The complex topography of mountainous landscapes can create biogeographic barriers and promote allopatric speciation—even among morphologically cryptic species. However, these biogeographic barriers are rarely permanent, and secondary contact between previously independently evolving populations may result in hybridization and introgression. Here, we use genome-wide SNP data to reexamine a classic example of cryptic species in the Appalachian Mountains: the slimy salamander (<em>Plethodon glutinosus</em>) species complex. This group of morphologically similar terrestrial salamanders includes 14 species with parapatric distributions across the eastern United States. In this study, we focused on the Chattahoochee Slimy Salamander in northern Georgia and used a series of complementary phylogenomic and population genomic analyses to evaluate spatial genetic structure within this species and demonstrate admixture with at least four other species of parapatric woodland salamanders. Our results highlight the utility of genomic data in clarifying species boundaries and underscore the difficulty of species delimitation in organisms with complex evolutionary histories.</p>
Data from: Mating patterns and post-mating isolation in three cryptic species of the Engystomops petersi species complex
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Data from: Clonality, local population structure, and gametophyte sex ratios in cryptic species of the Sphagnum magellanicum complex
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Molecular data of cryptic species in the Sphagnum magellanicum complex (Bryophyta) in North America
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Supplementary datasets to: Molecular species delimitation and morphometry in the Melampus bidentatus (Panpulmonata, Ellobiidae) cryptic species complex
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Hetaerina SNPs data for: Genomic differentiation and niche divergence in the Hetaerina americana (Odonata) cryptic species complex
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Data from: Dense geographic and genomic sampling reveals paraphyly and a cryptic lineage in a classic sibling species complex
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Ecological divergence despite common mating sites: Genotypes and symbiotypes shed light on cryptic diversity in the black bean aphid species complex
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FIGURE 7 in Systematics of the Ameerega rubriventris complex (Anura: Dendrobatidae) with descriptions of two new cryptic species from the East-Andean versant of Peru
FIGURE 7. Known distribution of species in the A. rubriventris complex. Each distribution was created by applying a 20 km buffer to a minimum convex polygon surrounding the known localities of each species. An asterisk indicates samples confirmed with genetic data. Gray dots represent frogs collected as either A. hahneli and A. picta over the past decades; in much of southern Peru it is impossible to positively ascribe these localities to either species based on observation alone. Thus, we have pooled them here to represent the joint distribution of these two similar looking species.
FIGURE 6 in Systematics of the Ameerega rubriventris complex (Anura: Dendrobatidae) with descriptions of two new cryptic species from the East-Andean versant of Peru
FIGURE 6. Advertisement calls of the A. rubriventris complex. The plot in center depicts the 2D call space occupied by each species with the x-axis representing advertisement call dominant frequency and y-axis representing individual note length (in seconds). Density plots extend from each axis and depict the relative frequency of each species' values. Letters depict significant differences among taxa (ANOVA: dominant frequency, df=3, F= 22.55, p<0.001; note length, df=3, F= 8.55, p<0.001). Black lines in density plots on each axis depict median, upper-, and lower-quartiles for each species. The isopleths in center plot depict a 2D kernel density estimation of each species' call space. White dots represent values for A. altamazonica.
FIGURE 5 in Systematics of the Ameerega rubriventris complex (Anura: Dendrobatidae) with descriptions of two new cryptic species from the East-Andean versant of Peru
FIGURE 5. Advertisement calls of: A) Ameerega hahneli from Panguana Biological Research Station at 25°C. B) A. rubriventris from type locality, Boqueron de Padre Abad, Peru at 24°C. C) A. altamazonica from type locality, near Tarapoto, Peru at 23°C. D) A. panguana from type locality at 24°C. E) A. imasmari from type locality at 23°C. Solid gray line depicts 5 kHz.
FIGURE 4. A–C in Systematics of the Ameerega rubriventris complex (Anura: Dendrobatidae) with descriptions of two new cryptic species from the East-Andean versant of Peru
FIGURE 4. A–C) Holotype of Ameerega panguana in life (MUSM 26846), SVL=17.3mm. D–E) Holotype of Ameerega imasmari in life (CORBIDI 20575), SVL= 19.9 mm, see Fig. 1 for additional image.
FIGURE 2 in Systematics of the Ameerega rubriventris complex (Anura: Dendrobatidae) with descriptions of two new cryptic species from the East-Andean versant of Peru
FIGURE 2. Phylogenetic relationships of A. rubriventris complex and outgroups. A) Species tree of focal taxa using UCE genome-scale molecular markers. B) Maximum-likelihood phylogeny based on 16s mtDNA and a backbone constraint tree from mtDNA genome data (Fig 3). Art by WXG. *Depicts taxa with mtDNA genome data, whose relationships were fixed in our constraint tree. Support values were not included, as they are misleading due to the use of a constraint tree. See Fig. 3 for more rigorous phylogeny. ǂ =holotype, α =paratype
FIGURE 1 in Systematics of the Ameerega rubriventris complex (Anura: Dendrobatidae) with descriptions of two new cryptic species from the East-Andean versant of Peru
FIGURE 1. Species in the Ameerega rubriventris species complex: A & B) Ameerega altamazonica, C) A. rubriventris dorsal view, D) A. rubriventris ventral view E) Ameerega panguana sp. nov. (photo T. Ostrowski), F) Ameerega imasmari sp. nov. (holotype)
FIGURE 4. Variation between H. calverti and H. americana females. Intersternite and S10 in Hetaerina calverti (Odonata: Zygoptera: Calopterygidae) sp. nov., a new cryptic species of the American Rubyspot complex
FIGURE 4. Variation between H. calverti and H. americana females. Intersternite and S10 of H. calverti (A) and H. americana (B). The illustrations are not at scale.
FIGURE 2 in Hetaerina calverti (Odonata: Zygoptera: Calopterygidae) sp. nov., a new cryptic species of the American Rubyspot complex
FIGURE 2. Paratype male of H. calverti (left) and young male of H. americana (right) from Apazapan, Veracruz, Mexico.
FIGURE 8 in A new cryptic species of fringe-toed lizards from southwestern Arizona with a revised taxonomy of the Uma notata species complex (Squamata: Phrynosomatidae)
FIGURE 8. (A) An individual of U. thurmanae in its natural habitat. (B) Sand dune habitat of U. thurmanae (camera pointed east with the Mohawk Dunes in the midground and the Mohawk Mountains in the background). Photographs by A. Gottscho.
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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)
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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.