Small-scale spatial variation in age and size

WebThe spatial variation in risk of MS was estimated by kernel regression. Results: We identified spatial variation in the risk of MS according to residence at birth, age 15, and onset of … WebUnderstanding the pattern and magnitude of spatial variation in demography and population growth rate (λ) is key to understanding the structure and dynamics of natural populations. However, such spatial variation is challenging to quantify. We use > 20 years of individual life-history data to quantify small- and large-scale spatial variation in

Small-scale spatial variation in age and size at maturity of stream ...

WebNov 1, 2015 · Here, we assess small-scale spatial variation in size at maturity over a year to identify the seasons that increase error in visual maturity estimates. We compare and contrast results from... WebSpatial variability. Spatial variability occurs when a quantity that is measured at different spatial locations exhibits values that differ across the locations. Spatial variability can be … crystal rental cars belize https://matrixmechanical.net

Spatial variations and determinants of malnutrition among under …

WebSep 28, 2016 · Spatial variation in age structure can develop over time for at least two reasons. First, if recruitment is limited within a local population, then over time individuals will age and older individuals will disproportionately make up the local population in the absence of immigration [ 10 ]. WebDec 24, 2024 · INTRODUCTION. Gene flow is an important evolutionary parameter ultimately determining the spatial extension in which individuals share a common gene pool and the amount of genetic subdivision (Wright, 1946).Unlike mutation that creates new variation, gene flow is the exchange of alleles among populations promoting the income of allelic … WebJul 24, 2006 · Introduction. Spatial variation in demography and population growth rate (λ) is predicted to play a major part in determining the structure and dynamics of populations … dying curtains black

Spatial Epidemiology: Current Approaches and Future Challenges

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Small-scale spatial variation in age and size

Global scale analysis on the extent of river channel belts

WebThis variation in body size over a small spatial scale appears to be coupled with changes in age-related parameters, with earlier age of maturity and shorter longevities in dwarf populations of the newt T. pygmaeus(Díaz- Paniagua et al. 1996). Webto identify small-scale variability in sediment transport with winds nearly parallel to the shoreline orientation. The study was conducted on a sand beach at Ocean City, New …

Small-scale spatial variation in age and size

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Webevaluated smaller-scale variations in benthic charac-teristics within a culture site (1) under long lines vs. between long lines or (2) in areas with juvenile bivalves (i.e. at the beginning of the growth cycle) vs. bivalves of commercial size. Such variation should be taken into account when evaluating the influence of WebJun 1, 2004 · Spatial epidemiology is the description and analysis of geographic variations in disease with respect to demographic, environmental, behavioral, socioeconomic, genetic, and infectious risk factors. We focus on small-area analyses, encompassing disease mapping, geographic correlation studies, disease clusters, and clustering. Advances in …

WebJan 5, 2024 · interactions typically generate small-scale spatial structure that occurs at a length scale of the order one to ten times an individual’s size. Despite being local in origin, spatial structure can have signi cant large-scale e ects on population size, and even determine whether the population survives or dies (Law et al., 2003). WebSpatial scale is a specific application of the term scale for describing or categorizing (e.g. into orders of magnitude) the size of a space (hence spatial), or the extent of it at which a …

WebApr 10, 2024 · The aims of this study were to (1) compare the CST prediction accuracy using different datasets and machine learning; (2) estimate the spatial variation of CST in the UTCBF, with its different forest types and stand ages; and (3) evaluate the possible factors driving the spatial distribution of carbon stock in the UTCBF at a landscape scale. 2. WebAbstract – This study documents substantial small-scale spatial variation in age and size at maturity of brown trout (Salmo trutta) found either in allopatry (above major waterfalls) …

WebJul 16, 2013 · Despite long planktonic durations, many species of broadcast spawning invertebrates exhibit genetic structure at small spatial and temporal scales. Amplified fragment length polymorphisms were used to assess genetic variation in the sea scallop, Placopecten magellanicus, among four inshore and one offshore location in the Gulf of …

WebThis article makes two key contributions. The first relates to spatial variation in population sub-groups (demographic and socio-economic) in England and Wales. The second concerns the amount of spatial information contained at different spatial scales for the (ilr-transformed) variables included in the analysis. crystal repair seattleWebinformation is contained at each spatial scale for sub-categories relating to age, ethnic group, housing tenure, car or van availabil-ity, qualifications, employment, limiting long-term illness (LLTI) and National Statistics Socio-economic Classification (NS-SeC). The amount of variation contained by each level of the hierarchy dying cushion coversWebMar 21, 2024 · We studied the spatio-temporal variation of adult life-history traits linked to age and body size in the common frog ( Rana temporaria) from low (i.e., valley at 480 m … dying curtains with ritWebSeveral high- and low-risk areas were identified across the country with some variation between birth, age 15, and onset. Conclusions: Small-scale geographical variation in the risk of MS suggests that local environmental risk factors could be at play and may be related to life style factors. Keywords: crystal repair richmond vaWebOct 1, 2013 · Alongshore spatial variation at ≤ 500 m was small, but similar to 100 km scales. • Our study demonstrates the potential for nursery processes to vary at small scales. Abstract L. (‘YOY plaice’) at beaches on the western side of the British Isles at small alongshore (100–500 Keywords Flatfish nursery Habitat heterogeneity Individual growth … dying daily to self scriptures kjvWebFeb 28, 2013 · The purpose of this study was to quantify the spatial variation in abundance of juvenile corals (≤50 mm) among three sectors of the Australian’s Great Barrier Reef … crystal repair njWebDec 31, 2012 · Here we utilize CFR to explore spatial variability in life history and demography of the rocky reef-associated grass rockfish (Sebastes rastrelliger) in the … crystal repair shop near me