Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 38 for “"PERMANOVA"”.
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Assimetria flutuante dos otólitos sagitta de robalo-flecha, Centropomus undecimalis (actinopterygii: centropomidae), nos sistemas lagunares do leste fluminense, como indicadores ambientais
… para os quatro sistemas lagunares agrupados (PERMANOVA; p<0,001), enquanto nas análises pareadas apenas PI X SQ não apresentaram diferenças significativas (PERMANOVA; p>0,05). Na avaliação ambiental de microhábitat, a ausência de microhábitat foi o principal fator correlacionado aos elevados …
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Long-term spatiotemporal water quality and phytoplankton dynamics in Severn Sound, Ontario: a delisted great lakes area of concern
… Permutational Multivariate Analysis of Variance (PERMANOVA) revealed that station, along with period (before, during, and after delisting), and interaction of station and period were significant drivers of phytoplankton community composition. Using redundancy analysis, I found cyanobacterial …
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The role of the skin microbiome in amphibian pathogen susceptibility in Turnbull National Wildlife Refuge
… skin microbiomes (p=0.001, pseudo-F=19.07, PERMANOVA), and the two species varied in the interaction between the microbiome and Bd. Bd infection intensity was significantly correlated with the skin microbiome in P. regilla (Mantel test, r=0.43, p=0.02), which had higher Bd levels, but this …
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MICROBIAL GUARDIANS OF THE SAVANNAH: UNRAVELING THE GUT MICROBIOME FOR AFRICAN CARNIVORE CONSERVATION
… between preserved and opportunistic samples (PERMANOVA). Core bacterial communities remained consistent across sample conditions, supporting the use of opportunistic samples for GMB studies in remote arid settings. I also evaluated how parasite presence, abundance, and co-infection related to …
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Seasonal Differences in Diet of Two Predatory Fishes in Relation to Reef Type in the Inshore Northern Gulf of Mexico
… reef profile. Diet composition was analyzed by a PERMANOVA, HMD, MDS, and SIMPER analysis. Between the main terms, only season was significant for both species while the interaction was only significant for Spotted Seatrout. Various fishes and crustaceans were the main prey taxa in both species …
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Characterizing spatial and temporal trends in fish community diversity in the inland lakes of Isle Royale, MI, USA
… community structure. I used species-area curves, PERMANOVA, and multivariate dispersion tests to quantify differences in diversity between surveys, temporal beta diversity indices and SIMPER to identify lakes and species changing most, and NMDS to examine lake factors influencing composition. Mean …
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Community Structure and Production of the Macrobenthos on Four Artificial Reefs in the Mississippi Sound in Relation to Substrate and Profile Type
… space among substrate types and profile types. PERMANOVA found significant differences in community similarity between high and low profile structures. SIMPER further disclosed how the abundances of multiple taxa drove dissimilarity values between reef profile types and substrates.</p>
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Pseudomonas spp. Isolated from Soybean Nodules Promote Soybean Growth and Nitrogen Fixation
… permutational multivariate analysis of variance (PERMANOVA). Both analyses showed soybeans of both cultivars treated with Pancake differed from controls following the first harvest but not the second. When analyzed individually, most metrics for growth, yield, and nitrogen fixation following the …
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Systematics and Conservation of the Genus <em>Malacothamnus </em>(Malvaceae)
… permutational multivariate analysis of variance (PERMANOVA), and linear discriminant analysis (LDA) to answer (1) whether taxa relegated to synonymy by some authors are morphologically distinct or not, (2) whether there is morphological evidence to support purported intergradation between taxa, …
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Assessing the spatiotemporal variation of phytoplankton biomass in Nandoni reservoir in the Vhembe District (South Africa) using LANDSAT satellite imagery
… permutational multivariate analysis of variance (PERMANOVA) analysis, there was significant differences for chl–a concentration in sites, seasons, and zones. There was positive significant correlation observed on water temperature with strong negative significant with salinity and TDS. A strong …
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Assessing Arbuscular Mycorrhizal Fungal community composition and diversity across a land-use gradient in Eastern Washington prairies
… significantly different across land-use types (PERMANOVA; p< 0.05). ASV richness and diversity also differ across land-use types with prairie and CRP sites having significantly higher richness and diversity than conventional till sites (ANOVA; p< 0.05), but not no-till sites. Our findings are an …
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Distribution of epifauna in offshore benthic environments along the west and south coast of South Africa
… from 36m to 899m. Multivariate tools (PRIMER and PERMANOVA+) were used to analyse spatial (west vs south coast) and temporal (2011 vs 2017) patterns in epifauna. This study also investigated an overlap region between the west and south coast. A group average linkage cluster analysis defined …
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Εργαστηριακή μελέτη της επίδρασης της ανοσοθεραπείας στο εντερικό μικροβίωμα πειραματικού μοντέλου mus musculus με μελάνωμα
… στατιστικές αναλύσεις όπως Kruskal-Wallis και PERMANOVA, λόγω του μικρού αριθμού δείγματος, για τον εντοπισμό σημαντικών ταξινομικών αλλαγών στο μικροβίωμα. Αποτελέσματα: Στα ποντίκια που λάμβαναν μόνο ανοσοθεραπεία, η χορήγηση aPD1&aCTLA4 προκάλεσε μια χαρακτηριστική μικροβιακή υπογραφή, …
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METAL AND WOODEN SHIPWRECKS: UNDERSTANDING THE RELATIONSHIP BETWEEN HEAVY METALS, ENVIRONMENTAL FACTORS, AND MICROBIAL COMMUNITIES
… with an associated variance of 13% (PERMANOVA, p-value=0.005) Additionally, Kruskal-Wallis tests identified ship material as influential to the concentrations of chromium and lead levels, while copper and iron seem to only be influenced by distance from ship (p-value >0.05). Microbial …
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Transposição de topsoil e serapilheira para restauração ecológica no Parque Nacional da Serra do Itajaí, SC
… faces, pela análise multivariada de variância (Permanova), todos os tratamentos apresentaram diferenças significativas. A orientação sul favoreceu o surgimento e o desenvolvimento das plântulas quando comparadas à exposição no norte. As espécies Cecropia glaziovii, Solanum mauritianum, Trema …
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Quantitative fish survey of the submarine canyons of the iSimangaliso Wetland Park
… decreased with subsequent depths. Habitat (Permanova p=0,0031) had the strongest influence on fish community composition. No north†south separation in terms of fish diversity (H') among canyons was detected. The results were consistent with similar studies. All canyons were adequately …
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Distribuição de fungos micorrízicos arbusculares em solos sob vegetação nativa e em regeneração natural em unidade de conservação de Mata Atlântica
… desta área em todos os períodos de coleta. A PERMANOVA mostrou que a composição da comunidade de FMA diferiu entre as áreas de estudo, mas não entre os períodos de coleta, sendo os atributos do solo (pH, K, Al, Mg, m e argila) os fatores estruturantes para essa diferença. O estresse ambiental …
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Spatial distribution and diversity of soft-bottom benthic invertebrates from demersal trawl surveys off the coast of Namibia
… test = 6.36; df = 3; SD = 0.33; p = 0.95). x The PERMANOVA test revealed a significant difference in the community structure across regions (Pseudo-F = 9.09, p < 0.001) and depths (Pseudo-F = 10.34, p < 0.001). DistLM of the environmental factors showed a weak correlation with the benthic …
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Investigating the role of circulating cell-free dna as a mechanistic biomarker in inflammatory bowel disease: development of an integrated precision-medicine enabled platform in Scotland
… significantly different beta diversity profiles (permanova R2 0.766, p<0.01) compared to patients in remission or healthy controls. CONCLUSION: The analysis of cfDNA with modern advances in technology is an unexplored dimension of inflammation biology. cfDNA correlates with IBD activity and …
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Lichens Of Ultramafic Rocks: A Multidisciplinary Approach To Understanding The Ecology Of An Understudied Organism In A Well-Studied System
… and abiotic variables were analyzed using perMANOVA. Ultramafic communities showed significant differentiation from sandstone communities in the study area. A total of 134 taxa were recorded - 81 taxa from ultramafic outcrops and 100 taxa from sandstone, with 47 taxa found on both rock …
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