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732 results for “population variation”
Genetic variation in sea otters (Enhydra lutris) from the North Pacific with relevance to the threatened Southwest Alaska distinct population segment
<p>For the sea otter (<i>Enhydra lutris</i>), genetic population structure is an area of research that has not received significant attention, especially in Southwest Alaska where that distinct population segment has been listed as threatened since 2005 pursuant to the U.S. Endangered Species Act. In this study, 501 samples from 14 locations from Prince William Sound, Alaska to the Commander Islands in Russia were analyzed for variation at 13 microsatellite loci. Our results indicate a high degree of genetic divergence among the 14 locations (<i>F</i><sub>ST</sub> = 0.12) with gene flow conforming to the isolation by distance (IBD) model (<i>r<sup>2</sup></i> = 0.491, <i>p</i> < 0.05). The 14 sampling locations formed six geographic associations in clustering and ordination analyses that likely correspond to remnant population lineages: 1) Southcentral Alaska, 2) Kodiak and North Alaska Peninsula, 3) South Alaska Peninsula and Bristol Bay, 4) Eastern Aleutian, 5) Western Aleutian, and 6) the Commander Islands. Except for South Alaska Peninsula and Bristol Bay, these clusters closely agree with previously defined stock and management unit boundaries. Our results reveal significant genetic population structure and are generally congruent with current management strategies for the threatened Southwest Alaska distinct population segment.</p>
Figure 2 from: Rao U, Rao S, Rathi A, Gothalwal R, Atkinson H (2011) A comparison of the variation in Indian populations of pigeonpea cyst nematode, Heterodera cajani revealed by morphometric and AFLP analysis. ZooKeys 135: 1-19. https://doi.org/10.3897/zookeys.135.1344
Figure 2 - AFLP Autoradiogram of pigeon pea cyst nematode Heterodera cajani with EcoRI (+AAG) + MseI, (+CAG) and EcoRI (+AAA) + MseI (CTA). Lane 1 to 11: Heterodera cajani populations from Andhra Pradesh, Allahabad, Bahadurgarh, Coimbatore, Kanpur-1, Ghaziabad, Gilberga, Hisar, Delhi, Kanpur-2, andMeja.
Figure 3 from: Rao U, Rao S, Rathi A, Gothalwal R, Atkinson H (2011) A comparison of the variation in Indian populations of pigeonpea cyst nematode, Heterodera cajani revealed by morphometric and AFLP analysis. ZooKeys 135: 1-19. https://doi.org/10.3897/zookeys.135.1344
Figure 3 - Dendograms from cluster analysis of Heterodera cajani a) for 1278 amplified restriction fragment digests using 24 primer pairs and b) the four primer pairs that suggest a similar dendogram to the full set. The using the upper tail rule the best cut procedure indicated the highest number of significant cluster partitions was 3 as in both cases with realised deviates and t statistics respectively of a) 1.47 and 4.66 and b) 1.59 and 5.04.
Figure 1 from: Rao U, Rao S, Rathi A, Gothalwal R, Atkinson H (2011) A comparison of the variation in Indian populations of pigeonpea cyst nematode, Heterodera cajani revealed by morphometric and AFLP analysis. ZooKeys 135: 1-19. https://doi.org/10.3897/zookeys.135.1344
Figure 1 - Dendograms from cluster analysis a) for the nine biometric measurements made on second stage juveniles of eleven populations of Heterodera cajani (see Table 2 for data) b) vulval cones of cysts of the same populations. (See Table 3 for data). The using the upper tail rule the best cut procedure indicated the highest number of significant cluster partitions was for a) 2 and for b) 3 with realized deviates and t- statistics respectively of a) 2.71 and 8.56 and b) 1.04 and 3.27.
Figure 4 from: Rao U, Rao S, Rathi A, Gothalwal R, Atkinson H (2011) A comparison of the variation in Indian populations of pigeonpea cyst nematode, Heterodera cajani revealed by morphometric and AFLP analysis. ZooKeys 135: 1-19. https://doi.org/10.3897/zookeys.135.1344
Figure 4 - India Map showing distances of collected 11 Heterodera cajani populations with distances in (Kilometres)
Figure 2 from: Virgilio M, Delatte H, Nzogela YB, Simiand C, Quilici S, De Meyer M, Mwatawala M (2015) Population structure and cryptic genetic variation in the mango fruit fly, Ceratitis cosyra (Diptera, Tephritidae). In: De Meyer M, Clarke AR, Vera MT, Hendrichs J (Eds) Resolution of Cryptic Species Complexes of Tephritid Pests to Enhance SIT Application and Facilitate International Trade. ZooKeys 540: 525-538. https://doi.org/10.3897/zookeys.540.9618
Figure 2 - Individual Bayesian assignments. STRUCTURE sequential individual assignments of 348 specimens of Ceratitis cosyra from 13 African countries.
Figure 1 from: Virgilio M, Delatte H, Nzogela YB, Simiand C, Quilici S, De Meyer M, Mwatawala M (2015) Population structure and cryptic genetic variation in the mango fruit fly, Ceratitis cosyra (Diptera, Tephritidae). In: De Meyer M, Clarke AR, Vera MT, Hendrichs J (Eds) Resolution of Cryptic Species Complexes of Tephritid Pests to Enhance SIT Application and Facilitate International Trade. ZooKeys 540: 525-538. https://doi.org/10.3897/zookeys.540.9618
Figure 1 - Unconstrained and constrained ordination. Principal Component Analysis (PCA) and Discriminant Analysis of Principal Components (DAPC) of 348 Ceratitis cosyra microsatellite genotypes. Specimen groups are labelled inside their 95% inertia ellipses and genotypes are connected to the corresponding group centroids.
Fluctuating environments promote evolvability by shaping adaptive variation accessible to populations (Data)
<p>Data used in "Fluctuating environments promote evolvability by shaping adaptive variation accessible to populations", along with the scripts and analysis files. These include the configuration files used for Avida and the Wright-Fisher simulations. </p>
Heat exposure variations and mitigation in a densely populated neighborhood during a hot day: Towards a people-oriented approach to urban climate management
<p>Archive with PALM simulation results.</p>
Supplementary material 1 from: Mohamadzade Namin S, Huang J, An J, Jung C (2023) Genetic variation and phylogenetic relationships of commercial populations of Bombus ignitus (Hymenoptera, Apidae) with wild populations in Eastern Asia. Journal of Hymenoptera Research 96: 495-506. https://doi.org/10.3897/jhr.96.102569
Information for COI sequences of Bombus ignitus from this study and NCBI-Genbank database
Insularity determines nestling sex ratio variation in Egyptian vulture populations
<p>Excel dataset</p>
Data from: How to escape from crop-to-weed gene flow: phenological variation and isolation-by-time within weedy sunflower populations
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Data from: Population scale mapping of transposable element diversity reveals links to gene regulation and epigenomic variation
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Data from: Spatial and spatiotemporal variation in metapopulation structure affects population dynamics in a passively dispersing arthropod
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Data from: Low demographic variability in wild primate populations: fitness impacts of variation, covariation, and serial correlation in vital rates
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Intraspecific genetic variation in Dendroctonus alters efficacy of molecular approaches to population suppression
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Data from: Individual variation, population-specific behaviours, and stochastic processes shape marine migration phenologies
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Data from: Potential for adaptation to climate change: family-level variation in fitness-related traits and their responses to heat waves in a snail population
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Data from: Environmental variation causes different (co) evolutionary routes to the same adaptive destination across parasite populations
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Data from: Dispersal as a source of variation in age-specific reproductive strategies in a wild population of lizards
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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.
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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.