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.
Results
Showing 1 to 20 of 782 for “"community structure"”.
-
Community structure and criminal victimization
… victimization by studying the important role of community structures, while controlling for the following demographic variables: age, gender, race, and income. Three different types of analyses were used: (1) bivariate analysis; (2) multivariate analysis, and (3) path analysis. Bivariate analysis …
-
Bird Community Structure in Southwestern Missouri
Three plots in southwestern Missouri, an upland forest, a shrubby plot, and a cedar plot ranging from 1.3 to 1.4 ha were sampled for bird species diversity from late March through November, 1978. Breeding bird censuses were also conducted in each area during the nesting season. Overall bird species …
-
Microbial adaptation, differentiation, and community structure
Microbes play a central role in diverse processes ranging from global elemental cycles to human digestion. Understanding these complex processes requires a rm under- standing of the interplay between microbes and their environment. In this thesis, we utilize sequencing data to study how individual …
-
Community Structure Detection in Complex Biological Networks
… been employed to analyse biological networks is community structure detection. Community structure is a modular network topology where communities are defined as groups nodes with dense intra-community connections and less dense inter-community connections.<br/>Methods to uncover such communities …
-
Microbial community structure and dynamics on patchy landscapes
… which average over the heterogeneous microscopic structure of microbial communities. This has limited our ability to establish mechanistic links between dynamics occurring across these disparate spatial scales. However, such links are critical for (a) making sense of the tremendous extant …
-
Community structure and pathogenomics of Pinaceae-infecting Fusarium spp.
… presents the observed regional effect on community structure of Fusarioid fungi collected from conifer seedlings among nurseries across the contiguous USA. The need for a global consensus to establish and maintain databases based on Fusarioid species type strains as references due to the …
-
Epiphytic Diatom Community Structure in a Karst Riverine System
… of this study was to assess the epiphytic diatom community structure of two host species along a karst gradient in the upper Green River, Kentucky to a gain a better understanding of the role of diatoms in the food web. The host species studied were Podostemum ceratophyllum and Cladophora. Percent …
-
Patterns in Fish Community Structure in a Regulated River
… multidimensional scaling (NMDS) to create a community composition model. Fish composition was noticeably greater post-peaking and changed minimally across time and event. There were no statistically significant differences in species composition among pre or post peaking samples, sites, or …
-
UNDERSTANDING DIFFERENTIAL ABUNDANCE IN MICROBIAL ECOLOGY USING COMMUNITY STRUCTURE.
… It also conveniently exposes consensus Louvain community detection to aid in network understanding. This enriched version of DAA goes beyond conventional classification of features as differentially abundant to reframe the question as one of influence. In benchmarking studies, where the …
-
Microbial community structure and nitrogen cycling in limestone biofilms
… analysis indicated that the general physical structure of the biofilm remained constant, but the organisms inhabiting the biofilm varied. Metagenomic analysis confirmed that taxonomic diversity in biofilm communities is dynamic and variable, but the predicted functional capacities appear to be …
-
Insights into microbial community structure from pairwise interaction networks
… contributing to the overall function of the community. The structure of these communities is the result of many complex biotic and abiotic factors. In this thesis, my colleagues and I employ a bottom-up approach to investigate the role of interspecies interactions in determining the structure …
-
Seasonal Variation in Benthic Community Structure in Mobile Bay, Alabama.
The community concept in benthic marine ecology has long been a subject of intense interest. Peterson (1918) was one of the first investigators to recognize and attempt to characterize benthic com- munities in his extensive surveys of the Skagerrak and Baltic Sea. According to Thorson (1957), …
-
Phylogenetic and Morphological Community Structure of North American Desert Bats
Patterns of community structure may be examined using phylogenetic and morphological data; these patterns can then be used to infer the processes that gave rise to these patterns. Communities made up of similar species may be structured by habitat filtering, wherein only species with traits …
-
Microbiology of marine sponges: from community structure to symbiont function
… and/or abundant species, i.e. the „core‟ community. While this approach has been widely used to analyse diverse biological systems, including sponge microbiota, to date its robustness has not been rigorously evaluated. Thus, in this thesis I systematically evaluated the applicability of …
-
Performance and microbial community structure of Midwestern groundwater pretreatment reactors
… temporal and depth-related changes in microbial community structure throughout the ripening period in parallel with performance data. This study demonstrates that pretreatment systems could be a viable location for biological ammonia oxidation and a potential treatment choice for …
Page 1 of 40