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12 results for “spatial sorting”
Data from: Spatial sorting caused by downstream dispersal: Implication for morphological evolution in isolated populations of fat minnow inhabiting small streams flowing through terraced rice paddies
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Does the spatial sorting of dispersal traits affect the phenotype of the non-dispersing stages of the invasive frog Xenopus laevis through coupling?
<p>Over ten weeks, we surveyed the development of <em>X. laevis</em> tadpoles in the French invasive range by conducting experiments in outdoor mesocosms and in laboratory microcosms, from free-swimming larvae to metamorphosis. We tested the effect of the location of the parental pond in the colonised range (core or periphery) on morphological traits related to dispersal (SVL and hind limb length), time to metamorphosis (development) and survival to metamorphosis. This excel spreadsheet contains the metadata and data spreadsheets used in the analysis. In addition to the first metadata sheet, the file contains nine additional sheets each containing data used in the separate analysis as outlined in the manuscript. </p>
Spatial sorting promotes rapid (mal)adaptation in the red-shouldered soapberry bug after hurricane-driven local extinctions
<p>Predicting future evolutionary change is a critical challenge in the Anthropocene as geographic range shifts and local extinction emerge as hallmarks of planetary change. Hence, spatial sorting – a driver of rapid evolution in which dispersal-associated traits accumulate along expanding range edges and within recolonized habitats – might be of growing importance in ecology and conservation. We report on the results of a natural experiment that monitored re-colonization of host plants by the seed-feeding, red-shouldered soapberry bug, <em>Jadera</em> <em>haematoloma</em>, after local extinctions from catastrophic flooding in an extreme hurricane. We tested the contribution of spatial sorting to generate rapid and persistent evolution in dispersal traits, as well as in feeding traits unrelated to dispersal. Long-winged dispersal forms accumulated in re-colonized habitats, and due to genetic correlation, mouthparts also became longer, and this shift persisted across generations. Those longer mouthparts were likely adaptive on one host plant species but maladaptive on two others based on matching the optimum depth of seeds within their host fruits. Moreover, spatial sorting eroded recently evolved adaptive divergence in mouthpart length among all host-associated biotypes, an outcome pointing to profound practical consequences of the extreme weather event for local adaptation, population resilience, and evolutionary futures.</p>
Data from: Land cover, individual’s age and spatial sorting shape landscape resistance in the invasive frog Xenopus laevis
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Spatial sorting promotes rapid (mal)adaptation in the red-shouldered soapberry bug after hurricane-driven local extinctions
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Data from: Genetic surfing, not allopatric divergence, explains spatial sorting of mitochondrial haplotypes in venomous coralsnakes
Strong spatial sorting of genetic variation in contiguous populations is often explained by local adaptation or secondary contact following allopatric divergence. A third explanation, spatial sorting by stochastic effects of range expansion, has been considered less often though theoretical models suggest it should be widespread, if ephemeral. In a study designed to delimit species within a clade of venomous coralsnakes, we identified an unusual pattern within the Texas coral snake (Micrurus tener): strong spatial sorting of divergent mitochondrial (mtDNA) lineages over a portion of its range, but weak sorting of these lineages elsewhere. We tested three alternative hypotheses to explain this pattern—local adaptation, secondary contact following allopatric divergence, and range expansion. Collectively, near panmixia of nuclear DNA, the signal of range expansion associated sampling drift, expansion origins in the Gulf Coast of Mexico, and species distribution modeling suggest that the spatial sorting of divergent mtDNA lineages within M. tener has resulted from genetic surfing of standing mtDNA variation—not local adaptation or allopatric divergence. Our findings highlight the potential for the stochastic effects of recent range expansion to mislead estimations of population divergence made from mtDNA, which may be exacerbated in systems with low vagility, ancestral mtDNA polymorphism, and male-biased dispersal.
Data from: Predators regulate prey species sorting and spatial distribution in microbial landscapes
1. The role of predation in determining the metacommunity assembly model of prey communities is understudied relative to that of interspecific competition among prey. Previous work on metacommunity dynamics of competing species has shown that sorting by habitat patch type and spatial patterning can be affected by disturbances. 2. Microcosms offer a useful model system to test the effect of multi-trophic interactions and disturbance on metacommunity dynamics. Here, we investigated the potential role of predators in enhancing or disrupting sorting and spatial pattern among prey in experimental landscapes. 3. We exposed multi-trophic protist microcosm landscapes with one predator, two competing prey, two patch resource types, and localized dispersal to three disturbance regimes (none, low, and high). Then, we used variation partitioning and spatial clustering analysis to analyze the results. 4. In contrast with previous experiments that did not manipulate predators, we found that patch type did not structure prey communities very well. Instead, we found that it was the distribution of the predator that most strongly predicted the composition of the prey community. 5. The predator impacted species sorting by 1) preferentially consuming one prey, thereby acting as a strong local environmental driver, and by 2) indirectly magnifying the impact of patch food resources on the less preferred prey. The predator also enhanced spatial signal in the prey community because of its limited dispersal. Our results indicate that predators can strongly influence prey species sorting and spatial patterning in metacommunities in ways that would otherwise be attributed to stochastic effects, such as dispersal limitation or demographic drift. Therefore, whenever possible, predators should be explicitly included as separate explanatory factors in variation partitioning analyses.
Replication package for: "Highways, Market Access, and Spatial Sorting".
<ul> <li>The replication package contains data that we are making publicly available.</li> <li>We use two main datasets: census data (Swiss Federal Statistical Office) and taxpayer data (Swiss Federal Tax Administration).</li> <li>Census data are aggregated at the municipality level.</li> <li>Taxpayer data are proprietary. We aggregated these data into four income bins for each municipality. There are fewer than 5 observations in one of these income bins for a bit less than a third of tax data units (municipality-year) and the Swiss Federal Tax Administration asked us to code these bins as “missing” in the dataset we are making publicly available. Hence, the full dataset we are using and the dataset we are making publicly available differ slightly.</li> <li>The ReadMe file includes an Appendix with all Tables and Figures of the paper produced with the restricted, publicly available data.</li> </ul>
Data from: Predators regulate prey species sorting and spatial distribution in microbial landscapes
Open the record for dataset details and reuse information.
Data from: Genetic surfing, not allopatric divergence, explains spatial sorting of mitochondrial haplotypes in venomous coralsnakes
Open the record for dataset details and reuse information.
miRNA expression in spatially-sorted hepatocytes
GEO Series GSE134827. Mus musculus. 24 samples. Type: Non-coding RNA profiling by array.
Spatial dissection of the Arabidopsis response to downy mildew using Fluorescence Activated Cell Sorting
GEO Series GSE67100. Arabidopsis thaliana. 18 samples. Type: Expression profiling by array.
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Allen Brain Atlas
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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
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