Timothy J. Gallaher

Publications31
h-index9
Citations603
Highly Influential Citations23
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Importance Indices in Ethnobotany
TLDR
This paper compares RCI indices in four broad categories and presents a step-by-step guide to some specific methods, including ethnographic methods, use categorization, sampling, and statistical analysis.
Community Impacts of Prosopis juliflora Invasion: Biogeographic and Congeneric Comparisons
TLDR
The results suggest the possibility of regional evolutionary trajectories among competitors and that recent mixing of species from different trajectories has the potential to disrupt evolved interactions among native species.
Straightening out the screw-pines : a first step in understanding phylogenetic relationships within Pandanaceae
Biology and Impacts of Pacific Island Invasive Species. 6. Prosopis pallida and Prosopis juliflora (Algarroba, Mesquite, Kiawe) (Fabaceae)
TLDR
Prosopis pallida became a dominant tree in arid areas of the main Hawaiian Islands, replacing the native lowland dry forest species that had been decimated by human activity, particularly by the introductions of goats and cattle.
Topological Data Analysis as a Morphometric Method: Using Persistent Homology to Demarcate a Leaf Morphospace
TLDR
The application of a persistent homology method, using topological features, to measure leaf shape allows for a unified morphometric framework to measure plant form, including shapes, textures, patterns, and branching architectures.
Leaf shape and size track habitat transitions across forest–grassland boundaries in the grass family (Poaceae)
TLDR
The most likely ancestral habitat of the Poaceae family was the forest understory and forest margins along with an intermediate leaf shape served as important transitional habitat and morphology, respectively, for subsequent shifts across forest–grassland biome boundaries.
A long distance dispersal hypothesis for the Pandanaceae and the origins of the Pandanus tectorius complex.
3D shape analysis of grass silica short cell phytoliths (GSSCP): a new method for fossil classification and analysis of shape evolution.
TLDR
3D morphometrics hold great promise for GSSCP classification and accounts for the complete GSS CP shape, automates size measurements, and accommodates the complete range of morphotypes within a single analytical framework.
Navigating the ‘broad freeway’: ocean currents and inland isolation drive diversification in the Pandanus tectorius complex (Pandanaceae)
To test for and describe the genetic structure of the Pandanus tectorius complex, a group of closely related ocean‐dispersed plants and members of the Indo‐Pacific coastal strand community.
Genetic diversity and population structure of the threatened temperate woody bamboo Kuruna debilis (Poaceae: Bambusoideae: Arundinarieae) from Sri Lanka based on microsatellite analysis
TLDR
The first population genetics study of Bambusoideae in Sri Lanka is focused on the tetraploid woody bamboo Kuruna debilis (Thwaites) Attigala, Kathriar, using twelve variable microsatellite loci to assess the genetic diversity and population structure.
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