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Showing 1 to 19 of 19 for “"nonmetric multidimensional scaling"”.
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Nonmetric multidimensional scaling of complex sounds
Die vorliegende Untersuchung hat zum Ziel, die Anzahl der psychologisch bedeutsamen Urteilsdimensionen von Präferenz- bzw. Ähnlichkeitsurteilen ein und derselben Menge von Pkw-Innengeräuschen zu bestimmen und die ihnen zugrundeliegenden physikalischen Parameter als solche zu identifizieren. Aus der …
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A Nonmetric Multidimensional Scaling Approach to Social Judgment
Made available in DSpace on 2014-12-11T23:56:21Z (GMT). No. of bitstreams: 1 7317320.pdf: 5972698 bytes, checksum: 9c2876032fe65b8e84f55860f5f13611 (MD5) Previous issue date: 1972
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Vegetative communities as indicators of ground beetle (Coleoptera: Carabidae) diversity
… unit characteristics were measured in July 2012. Nonmetric multidimensional scaling (NMDS) ordinated the land units by their carabid assemblages into five ecologically meaningful clusters: disturbed, marsh, prairie, restoration, and savanna. The subset of land unit characteristics with the highest …
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Pseudomonas spp. Isolated from the Soybean Nodule Interior Promote Soybean Growth upon Field Amendment
… and height than other treatments. Through nonmetric multidimensional scaling (NMS), samples amended with a mixed culture or PAMW1 may be different regarding growth promotion relative to the non-amended samples. Univariate results support the hypothesis that the novel Pseudomonas spp. …
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The Short Term Responses of Benthic Macroinvertebrates to the Removal of Riparian Rhododendron in Southern Appalachian Streams
… related to the increase in Chironomidae. Using Nonmetric Multidimensional Scaling (NMDS) and permutational MANOVA significant annual differences in macroinvertebrates were found in all of the stream reaches during both seasons. However, the trait based NMDS and permutational MANOVA found …
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Fish Community Assembly in the Forest River, North Dakota, and Resolution of Campostoma Species Presence
… dimension of the Forest River. I used nonmetric multidimensional scaling to differentiate the patterns at two scales: level III and level IV ecoregions. The final aspect of my study was to investigate habitat preferences of fishes in the Forest River. I sampled fish by macrohabitat and …
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Identification and incorporation of quantitative indicators of ecosystem function into single-species fishery stock assessment models and the associated biological reference points
… in the northwestern Gulf. Cluster analysis and nonmetric multidimensional scaling analysis identified four distinct demersal fish communities (DFCs) from the summer survey data and three distinct spatial DFCs from the fall survey data. Indicator species analysis identified two different dominant …
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Amphibian and plant communities of natural and constructed upland-embedded wetlands in the Daniel Boone National Forest
… tests, generalized linear models, and nonmetric multidimensional scaling to compare conditions among wetland types and to visualize amphibian communities. Natural wetlands were associated with wood frogs (Lithobates sylvaticus) and marbled salamanders (Ambystoma opacum) and constructed …
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Human concept cognition and semantic relations in the unified medical language system: A coherence analysis.
… and appropriate data-analytic tools, such as nonmetric multidimensional scaling, hierarchical clustering, and content analysis, this study aimed to conduct an exploratory investigation to answer four related questions. Divided into two groups, a total of 89 research participants took part in …
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Response of Pinyon-juniper woodlands to fire, chaining, and hand thinning
… different responses to treatment. With nonmetric multidimensional scaling (NMS), we found a useful 3-axis ordination of the plots (stress=7.1, R2=.966). Within ordination space, the treated plots were well grouped by parent material. These results informed a Poisson generalized linear …
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Striped Bass and Summer Flounder Population Dynamics in the Chesapeake Bay: an Ecosystem Based Evaluation
… to determine mechanisms of change. We then used nonmetric multidimensional scaling (nMDS) to see if the community structure had drastically changed, the applied a principal response curve (PRC) to investigate the spatial and functional group change of the community. Among the factors examined, …
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Vegetation structure and inferred patterns of functional group attrition in a shrub encroached old field and tallgrass prairie mosaic
… analysis, indicator species analysis, and Nonmetric Multidimensional Scaling (NMS). The communities differed significantly in species density, species richness, ground layer cover, floristic quality indices, shrub canopy cover, and percent bare ground. To assess whether germination from the …
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Analysis of Molecular Dynamics Simulations of Protein Folding
… In this thesis, I propose a different method, a nonmetric multidimensional scaling (nMDS) technique, which achieves superior data compression by virtue of being nonlinear, and also provides a clear insight into the structural processes underlying MD trajectories. I illustrate the capabilities of …
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Taxonomic homogenization of plant communities in Illinois wetlands and the role of wetland compensation
… over four sampling periods over 15 years. Nonmetric multidimensional scaling was used map these changes in compositional similarity through time, and repeated measures ANOVA via randomization was used to test for a significant effect of time on β-diversity. Results indicate that herbaceous …
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The parasite assemblage of Scomber japonicus (Houttyun, 1782) off South Africa
… in Brazil, Peru, Chile and Portugal using Nonmetric Multidimensional Scaling modelling (NMDS) and an ANOSIM. The NMDS plot showed that all populations were unique. The South African and Portuguese populations (R statistic = 0.28) as well as the Chilean and Peruvian populations (R statistic …
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WHAT PREDICTS TERRESTRIAL INVERTEBRATE SUBSIDY USE BY BROOK TROUT (SALVELINUS FONTINALIS) IN HEADWATER STREAMS?
Spatial subsidies provide critical resources for organisms in receiving habitats, particularly when production in those habitats is low. While it is clear that terrestrial invertebrates provide a critical subsidy for trout, including eastern brook trout (Salvelinus fontinalis), we have limited …
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WHAT PREDICTS TERRESTRIAL INVERTEBRATE SUBSIDY USE BY BROOK TROUT (SALVELINUS FONTINALIS) IN HEADWATER STREAMS?
Spatial subsidies provide critical resources for organisms in receiving habitats, particularly when production in those habitats is low. While it is clear that terrestrial invertebrates provide a critical subsidy for trout, including eastern brook trout (Salvelinus fontinalis), we have limited …
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Microbiome associated with Ulva lacinulata and seawater in an integrated abalone (Haliotis midae)–Ulva system with partial recirculation
… AEW). The beta diversity analyses (non-metric multidimensional scaling) showed a partial degree of overlap between the water cohorts and Ulva samples from different systems. However, a separation of IMTA and non-IMTA systems was observed. Various genera associated with marine environments were …
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Spatial structuring and patterns of connectivity among Antarctic toothfish (Dissostichus mawsoni) stocks in the Southern Ocean: a view through otolith chemistry
… much the same within the Ross Sea. Similarly, nonmetric multidimensional scaling visualisations showed no clear separation among adults suggesting that the majority of Antarctic toothfish from the Ross Sea fishery use a common spawning ground. However, one individual from the Slope in 2012 and …