Katie May Laumann | University of Maryland (original) (raw)

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Papers by Katie May Laumann

File List ChesMMAP_Analysis.R (MD5: 76c1bf2a66778c549c104f1f981f3344) Functional_dendrogram.txt (... more File List ChesMMAP_Analysis.R (MD5: 76c1bf2a66778c549c104f1f981f3344) Functional_dendrogram.txt (MD5: 150ae02926a1d4019fbbb62a8389622f) Phylogenetic_tree.txt (MD5: 86896bc31f31d11d3fdf77f33b3ddb62) Taxonomic_tree.txt (MD5: 4dcd4fa2bf8eb6db567b7a1ff7dcb236) Description The code included in ChesMMAP Analysis.R reports all analyses run in the paper, including building functional, phylogenetic, and taxonomic trees, kriging interpolation, and construction of generalized additive models. The three text files include the functional, phylogenetic, and taxonomic trees in Newick format.

Regional Studies in Marine Science, 2021

This is a PDF file of an article that has undergone enhancements after acceptance, such as the ad... more This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

Ecosphere, 2014

Biodiversity has typically been described in terms of species richness and composition, but theor... more Biodiversity has typically been described in terms of species richness and composition, but theory and growing empirical evidence indicate that the diversity of functional traits, the breadth of evolutionary relationships, and the equitability with which individuals or biomass are distributed among species better characterize patterns and processes within ecosystems. Yet, the advantages of including such data come at the expense of measuring traits, sequencing genes, and counting or weighing individuals, and it remains unclear whether this greater resolution yields substantial benefits in describing diversity. We summarized a decade of high-resolution trawl data from a bimonthly trawl survey to investigate spatial and seasonal patterns of demersal fish diversity in the Chesapeake Bay, USA, with the goal of identifying areas and times of mismatch between different dimensions of diversity, and their response to environmental forcing. We found moderate to strong positive relationships among all metrics of diversity, and that functional and phylogenetic differences were well-reflected in an index derived from taxonomic (Linnaean) hierarchy. Compared with species richness and species diversity, functional, phylogenetic, and taxonomic indices peaked later in the year, which was a consequence of the distribution of biomass among functionally and evolutionarily divergent species. Generalized additive models revealed that spatial, temporal, and environmental variables explained roughly similar proportions of deviance across all aspects of diversity, suggesting that these three factors do not differentially affect the functional and phylogenetic aspects of community structure. We conclude that an index of diversity derived from taxonomic hierarchy served well as a practical surrogate for functional and phylogenetic diversity of the demersal fish community in this system. We also emphasize the importance of evenness in understanding diversity patterns, especially since most ecological communities in nature are dominated by one or few species.

eco.confex.com

Biodiversity has traditionally been described in terms of species composition and richness, but t... more Biodiversity has traditionally been described in terms of species composition and richness, but theory and growing empirical evidence indicate that the diversity of functional traits and phylogenetic relationships better predict community assembly, response to environmental ...

File List ChesMMAP_Analysis.R (MD5: 76c1bf2a66778c549c104f1f981f3344) Functional_dendrogram.txt (... more File List ChesMMAP_Analysis.R (MD5: 76c1bf2a66778c549c104f1f981f3344) Functional_dendrogram.txt (MD5: 150ae02926a1d4019fbbb62a8389622f) Phylogenetic_tree.txt (MD5: 86896bc31f31d11d3fdf77f33b3ddb62) Taxonomic_tree.txt (MD5: 4dcd4fa2bf8eb6db567b7a1ff7dcb236) Description The code included in ChesMMAP Analysis.R reports all analyses run in the paper, including building functional, phylogenetic, and taxonomic trees, kriging interpolation, and construction of generalized additive models. The three text files include the functional, phylogenetic, and taxonomic trees in Newick format.

Regional Studies in Marine Science, 2021

This is a PDF file of an article that has undergone enhancements after acceptance, such as the ad... more This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

Ecosphere, 2014

Biodiversity has typically been described in terms of species richness and composition, but theor... more Biodiversity has typically been described in terms of species richness and composition, but theory and growing empirical evidence indicate that the diversity of functional traits, the breadth of evolutionary relationships, and the equitability with which individuals or biomass are distributed among species better characterize patterns and processes within ecosystems. Yet, the advantages of including such data come at the expense of measuring traits, sequencing genes, and counting or weighing individuals, and it remains unclear whether this greater resolution yields substantial benefits in describing diversity. We summarized a decade of high-resolution trawl data from a bimonthly trawl survey to investigate spatial and seasonal patterns of demersal fish diversity in the Chesapeake Bay, USA, with the goal of identifying areas and times of mismatch between different dimensions of diversity, and their response to environmental forcing. We found moderate to strong positive relationships among all metrics of diversity, and that functional and phylogenetic differences were well-reflected in an index derived from taxonomic (Linnaean) hierarchy. Compared with species richness and species diversity, functional, phylogenetic, and taxonomic indices peaked later in the year, which was a consequence of the distribution of biomass among functionally and evolutionarily divergent species. Generalized additive models revealed that spatial, temporal, and environmental variables explained roughly similar proportions of deviance across all aspects of diversity, suggesting that these three factors do not differentially affect the functional and phylogenetic aspects of community structure. We conclude that an index of diversity derived from taxonomic hierarchy served well as a practical surrogate for functional and phylogenetic diversity of the demersal fish community in this system. We also emphasize the importance of evenness in understanding diversity patterns, especially since most ecological communities in nature are dominated by one or few species.

eco.confex.com

Biodiversity has traditionally been described in terms of species composition and richness, but t... more Biodiversity has traditionally been described in terms of species composition and richness, but theory and growing empirical evidence indicate that the diversity of functional traits and phylogenetic relationships better predict community assembly, response to environmental ...