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79 results for “historical and contemporary”
Historical and contemporary records of the invasive mussel Mytilus galloprovincialis in southern Africa
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Data from: Contemporary pollen-mediated gene immigration reflects the historical isolation of a rare, animal-pollinated shrub in a fragmented landscape
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Wildland-urban interface fire dynamics simulator input files for pyric tree spatial patterning interactions in historical and contemporary mixed conifer forests, California, USA
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Data from: Return of the ghosts of dispersal past: historical spread and contemporary gene flow in the blue sea star Linckia laevigata
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Data from: Echoes of a distant time: effects of historical processes on contemporary genetic patterns in Galaxias platei in Patagonia
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Data from: Evaluating effective population size and genetic diversity of a declining kit fox population using contemporary and historical specimens
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Data from: Historical connectivity, contemporary isolation, and local adaptation in a widespread but discontinuously distributed species, Rhododendron oldhamii, endemic to Taiwan
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Data from: Historical and contemporary factors shape the population genetic structure of the broadcast spawning coral, Acropora millepora, on the Great Barrier Reef
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Data from: Unravelling the effects of contemporary and historical range expansion on the distribution of genetic diversity in the damselfly Coenagrion scitulum
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Data from: Spatiotemporally explicit demographic modelling supports a joint effect of historical barriers to dispersal and contemporary landscape composition on structuring genomic variation in a red-listed grasshopper
Inferring the processes underlying spatial patterns of genomic variation is fundamental to understand how organisms interact with landscape heterogeneity and to identify the factors determining species distributional shifts. Here, we employ genomic data (ddRADSeq) to test biologically-informed models representing historical and contemporary demographic scenarios of population connectivity for the Iberian cross-backed grasshopper Dociostaurus hispanicus, a species with a narrow distribution that currently forms highly fragmented populations. All models incorporated biological aspects of the focal taxon that could hypothetically impact its geographical patterns of genomic variation, including (a) spatial configuration of impassable barriers to dispersal defined by topographic landscapes not occupied by the species, (b) distributional shifts resulted from the interaction between the species bioclimatic envelope and Pleistocene glacial cycles, and (c) contemporary distribution of suitable habitats after extensive land clearing for agriculture. Spatiotemporally-explicit simulations under different scenarios considering these aspects and statistical evaluation of competing models within an Approximate Bayesian Computation (ABC) framework supported spatial configuration of topographic barriers to dispersal and human-driven habitat fragmentation as the main factors explaining the geographical distribution of genomic variation in the species, with no apparent impact of hypothetical distributional shifts linked to Pleistocene climatic oscillations. Collectively, this study supports that both historical (i.e., topographic barriers) and contemporary (i.e., anthropogenic habitat fragmentation) aspects of landscape composition have shaped major axes of genomic variation in the studied species and emphasizes the potential of model-based approaches to gain insights into the temporal scale at which different processes impact the demography of natural populations.
Figure 3 in The death adder Acanthophis antarcticus (Shaw & Nodder, 1802) in Victoria: historical records and contemporary uncertainty
Figure 3. The truncated tail tip of death adder specimen D4349 (left) compared with the full tail tip of specimen D3579 (right).
THE ''NEW LOOK'' STYLE IN CLOTHING: HISTORICAL ORIGINS AND REFLECTION IN CONTEMPORARY FASHION.
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Historical rice farming in China linked to contemporary polygenic score differences
<p>Following domestication in the lower Yangtze River valley 9,400 years ago, rice farming spread throughout China and changed lifestyle patterns among Neolithic populations. Here we report evidence that the advent of rice domestication and cultivation may have shaped humans not only culturally but also genetically. Leveraging recent findings from molecular genetics, we construct a number of polygenic scores of behavioural traits and examine their associations with rice cultivation based on a sample of 4,101 individuals recently collected from Mainland China. A total of nine polygenic traits and genotypes are investigated in this study, including polygenic scores of height, body mass index, depression, time discounting, reproduction, educational attainment, risk preference, <i>ADH1B</i> rs1229984 and <i>ALDH2</i> rs671. Two-stage least squares estimates of the county-level percentage of cultivated land devoted to paddy rice on the polygenic score of age at first birth (<i>b</i> = -0.029, <i>p</i> = 0.021) and <i>ALDH2</i> rs671 (<i>b</i> = 0.182, <i>p</i> < 0.001) are both statistically significant and robust to a wide range of potential confounds and alternative explanations. These findings imply that rice farming may influence human evolution in relatively recent human history.</p>
Supplementary material 2 from: Ramírez-Bautista A, Torres-Hernández LA, Cruz-Elizalde R, Berriozabal-Islas C, Hernández-Salinas U, Wilson LD, Johnson JD, Porras LW, Balderas-Valdivia CJ, González-Hernández AJX, Mata-Silva V (2023) An updated list of the Mexican herpetofauna: with a summary of historical and contemporary studies. ZooKeys 1166: 287-306. https://doi.org/10.3897/zookeys.1166.86986
List of 975 taxa of native (and 14 non-native) reptiles of Mexico
Supplementary material 1 from: Ramírez-Bautista A, Torres-Hernández LA, Cruz-Elizalde R, Berriozabal-Islas C, Hernández-Salinas U, Wilson LD, Johnson JD, Porras LW, Balderas-Valdivia CJ, González-Hernández AJX, Mata-Silva V (2023) An updated list of the Mexican herpetofauna: with a summary of historical and contemporary studies. ZooKeys 1166: 287-306. https://doi.org/10.3897/zookeys.1166.86986
List of 430 taxa of native (and 2 non-native) amphibians of Mexico
Data from: Spatiotemporally explicit demographic modelling supports a joint effect of historical barriers to dispersal and contemporary landscape composition on structuring genomic variation in a red-listed grasshopper
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Historical rice farming in China linked to contemporary polygenic score differences
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Reconstructing historical and contemporary disease dynamics: A case study using the California slender salamander
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Figure 2 in Contemporary genetic structure reflects historical drainage isolation in an Australian snapping turtle, Elseya albagula
Figure 2. Minimum spanning tree depicting haplotype relationships for concatenated control region/nicotinamide adenine dinucleotide dehydrogenase subunit 4 (ND4) mtDNA from Elseya albagula across ten locations. Circles represent unique haplotypes and are connected to one another by mutational changes (lines). Crossbars indicate additional mutational steps and circle size is proportional to the number of individuals sharing that haplotype. Colours indicate geographical source of haplotypes. B, Burnett, F, Fitzroy; M, Mary.
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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.