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Data from: Drift happens: molecular genetic diversity and differentiation among populations of jewelweed (Impatiens capensis Meerb.) reflect fragmentation of floodplain forests
Landscape features often shape patterns of gene flow and genetic differentiation in plant species. Populations that are small and isolated enough also become subject to genetic drift. We examined patterns of gene flow and differentiation among 12 floodplain populations of the selfing annual jewelweed (Impatiens capensis Meerb.) nested within four river systems and two major watersheds in Wisconsin, USA. Floodplain forests and marshes provide a model system for assessing the effects of habitat fragmentation within agricultural/urban landscapes and for testing whether rivers act to genetically connect dispersed populations. We generated a panel of 12,856 single nucleotide polymorphisms and assessed genetic diversity, differentiation, gene flow, and drift. Clustering methods revealed strong population genetic structure with limited admixture and highly differentiated populations (mean multilocus FST = 0.32, FST' = 0.33). No signals of isolation by geographic distance or environment emerged, but alleles may flow along rivers given that genetic differentiation increased with river distance. Differentiation also increased in populations with fewer private alleles (R2 = 0.51) and higher local inbreeding (R2 = 0.22). Populations varied greatly in levels of local inbreeding (FIS = 0.2 to 0.9) and FIS declined in smaller, more isolated populations. These results suggest that genetic drift dominates other forces in structuring these Impatiens populations. In rapidly changing environments, species must migrate or genetically adapt. Habitat fragmentation limits both processes, potentially compromising the ability of species to persist in fragmented landscapes.
Fig. 2 in Genetic Differentiation And Linkage Disequilibrium In A Spatially Fragmented Population Of Cheilosia Vernalis (Diptera: Syrphidae) From The Balkan Peninsula
Fig. 2. Standardized variance of allelic frequencies FST (open symbols) and genetic distance D (NEI 1978) (filled symbols) plotted against corresponding geographic distance between subpopulation pairs of Cheilosia vernalis: Durmitor-Morinj (75 km), Fruška Gora- Durmitor (240 km), and Fruška Gora-Morinj (306 km). Pearson correlation coefficients between geographic distance and FST and D
Fig. 1 in Genetic Differentiation And Linkage Disequilibrium In A Spatially Fragmented Population Of Cheilosia Vernalis (Diptera: Syrphidae) From The Balkan Peninsula
Fig. 1. Map of Serbia and Montenegro showing sampling sites for the studied subpopulations of Chelosia vernalis, and genotype distribution at the Pgm locus. The Pgm locus was the most variable locus in the surveyed subpopulations, and along with differences of allele frequency variances at the
Figure 5 in Diurnal activity pattern of age-sex groups of a small and fragmented population of Blackbuck (Antilope cervicapra L.) in Western Haryana, India
Figure 5. Behavioural activities recorded for sub adult male vs. total time spent during different season(s).
Figure 6 in Diurnal activity pattern of age-sex groups of a small and fragmented population of Blackbuck (Antilope cervicapra L.) in Western Haryana, India
Figure 6. Behavioural activities recorded for sub adult female vs. total time spent during different season(s).
Figure 3 in Diurnal activity pattern of age-sex groups of a small and fragmented population of Blackbuck (Antilope cervicapra L.) in Western Haryana, India
Figure 3. Behavioural activities recorded for adult male vs. total time spent during different season(s).
Figure 4 in Diurnal activity pattern of age-sex groups of a small and fragmented population of Blackbuck (Antilope cervicapra L.) in Western Haryana, India
Figure 4. Behavioural activities recorded for adult female vs. total time spent during different season(s).
Figure 8 in Diurnal activity pattern of age-sex groups of a small and fragmented population of Blackbuck (Antilope cervicapra L.) in Western Haryana, India
Figure 8. Average % time spent annually versus activities by different age sex group (Error bars with standard error and treatment bars with different letters differ significantly at P ≤ 0.05 based on Duncan Multiple Range Test).
Figure 7 in Diurnal activity pattern of age-sex groups of a small and fragmented population of Blackbuck (Antilope cervicapra L.) in Western Haryana, India
Figure 7. Major behavioural activities vs. total time spent on each activity by different age-sex animal.
Text-fig. 2. Taphonomic and pathological phenomena of bear bones from Middle Pleistocene deposits from Vykopaná chodba in Za Hájovnou Cave (Moravia, the Czech Republic). a – fragment of left mandibula with pathological condylar process; b – thoracic vertebra with pathological rib facet; c – Mc III dext. with exostoses; d – fragment of juvenile right ulna with bite marks; e – gnawed right tibia with bite marks on proximal part; f – gnawed left calcaneus with bite marks. in Basic Population And Taphonomic Analysis Of Bear Assemblages From Za Hájovnou Cave (Moravia, The Czech Republic): A Fossil Record From 1987-2007
Text-fig. 2. Taphonomic and pathological phenomena of bear bones from Middle Pleistocene deposits from Vykopaná chodba in Za Hájovnou Cave (Moravia, the Czech Republic). a – fragment of left mandibula with pathological condylar process; b – thoracic vertebra with pathological rib facet; c – Mc III dext. with exostoses; d – fragment of juvenile right ulna with bite marks; e – gnawed right tibia with bite marks on proximal part; f – gnawed left calcaneus with bite marks.
Text-fig. 3. Taphonomic and pathological phenomena of bear bones from Middle Pleistocene deposits from Chodba naděje in Za Hájovnou Cave (Moravia, the Czech Republic). a – gnawed lumbar vertebra with a bite mark on the body head; b – fragment of pelvis with a bite mark; c – femur head with a bite mark; d – Mc II dext. with a pathological phenomenon on the metapodial proximal part (tuberosity/exostosis?). in Basic Population And Taphonomic Analysis Of Bear Assemblages From Za Hájovnou Cave (Moravia, The Czech Republic): A Fossil Record From 1987-2007
Text-fig. 3. Taphonomic and pathological phenomena of bear bones from Middle Pleistocene deposits from Chodba naděje in Za Hájovnou Cave (Moravia, the Czech Republic). a – gnawed lumbar vertebra with a bite mark on the body head; b – fragment of pelvis with a bite mark; c – femur head with a bite mark; d – Mc II dext. with a pathological phenomenon on the metapodial proximal part (tuberosity/exostosis?).
FIGURE 3 in Anthropogenic river fragmentation reduces long-term viability of the migratory fish Salminus brasiliensis (Characiformes: Bryconidae) populations
FIGURE 3 | A. Salminus brasiliensis population structure from the Bayesian cluster analysis for K = 2 (see also S1). Black lines separate the different sampled populations based on location (Pop1, Pop2, Pop3, Pop4 and Pop5; Fig. 1). B. DAPC scatterplots and membership probabilities show the first two principal components of the DAPC. Populations are represented in different colors: 1 - Lilac (Pop5); 2 - Green (Pop4), 3 - Orange (Pop3), 4 - Lilac (Pop2) and 5 - Brown (Pop1). C. Membership probabilities (in bar plots), represent individuals in different clusters.
FIGURE 2 in Anthropogenic river fragmentation reduces long-term viability of the migratory fish Salminus brasiliensis (Characiformes: Bryconidae) populations
FIGURE 2 | Predicted genetic diversity in Salminus brasiliensis populations with distinct fragmentation levels over the next 100 years. Using BOTTLESIM 2.6, we estimated the retained percentage of effective number of alleles (Ae) and expected heterozygosity (He) under 100%, 75% and 50% of retain bottleneck scenarios. In all populations, the current population size is unable to maintain 80% of current genetic diveristy, which it is indicated by a red line.
FIGURE 1 in Anthropogenic river fragmentation reduces long-term viability of the migratory fish Salminus brasiliensis (Characiformes: Bryconidae) populations
FIGURE 1 | Study area of Salminus brasiliensis populations in the Uruguay River basin, southern Brazil. A. Picture of Canyon Agusto César Gorge, Upper Uruguay River (acquired rights); B. Picture of Yucumã our Moconá Falls (google font: https://7mar.com.ar/mocona). Salminus brasiliensis (personal picture).
Fig. S4 in Evidence of genetic connectivity between fragmented pig populations in a tropical urban city-state
Fig. S4. Inbreeding coefficients of each individual. White bars represent individuals from the Northeast and grey bars represent individuals from the Central Catchment Nature Reserve. Error bars represent 95% confidence interval.
Fig. S3 in Evidence of genetic connectivity between fragmented pig populations in a tropical urban city-state
Fig. S3. Mean inbreeding coefficients of the populations of pigs found in the Northeast and the CCNR (Central Catchment Nature Reserve). Error bars represent 95% confidence interval.
Fig. S2 in Evidence of genetic connectivity between fragmented pig populations in a tropical urban city-state
Fig. S2. Plot of Delta K from STRUCTURE output showing the Delta K values for the corresponding K values. The higher the Delta K value, the better the genetic structure is explained.
Fig. 4 in Evidence of genetic connectivity between fragmented pig populations in a tropical urban city-state
Fig. 4. Mean observed heterozygosities of the Northeast population and the Central Catchment Nature Reserve population. Error bars represent 95% confidence intervals of the mean.
Fig. 2. Principal Component Analysis plot showing the 42 in Evidence of genetic connectivity between fragmented pig populations in a tropical urban city-state
Fig. 2. Principal Component Analysis plot showing the 42 individuals from the Central Catchment Nature Reserve (CCNR) and the Northeast differentiated by sex and age class. Individuals exhibiting genetic admixture are labelled. Percentage variation accounted for by each principal component is indicated in brackets.
Fig. 1 in Evidence of genetic connectivity between fragmented pig populations in a tropical urban city-state
Fig. 1. Map of Singapore, in relation to Johor (Malaysia), showing various land-use types and the study sites (Central Catchment Nature Reserve, Northeast). Offshore islands Pulau Tekong and Pulau Ubin where pigs are also present are labelled. White stars indicate locations of cage traps.
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Allen Brain Atlas
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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.