- Plant Taxonomy and Phylogenetics
- Bamboo properties and applications
- Plant Diversity and Evolution
- Ecology and Vegetation Dynamics Studies
- Cocoa and Sweet Potato Agronomy
- Agroforestry and silvopastoral systems
- Freshwater macroinvertebrate diversity and ecology
- Tree Root and Stability Studies
- Soil and Water Nutrient Dynamics
- Plant and animal studies
- Species Distribution and Climate Change
- Mathematics Education and Teaching Techniques
- Geographic Information Systems Studies
- Coastal and Marine Dynamics
- Mobile Learning in Education
- Education Systems and Policy
- Water Quality Monitoring and Analysis
- Plant responses to water stress
- Plant Pathogens and Fungal Diseases
- Forest ecology and management
- Soil and Land Suitability Analysis
- Plant Water Relations and Carbon Dynamics
- Genetic diversity and population structure
- Rangeland and Wildlife Management
- Genomics and Phylogenetic Studies
Milwaukee Public Museum
2018-2024
Marquette University
2020-2022
University of New Brunswick
2013-2022
Iowa State University
2007-2012
Abstract Grasses are widespread on every continent and found in all terrestrial biomes. The dominance spread of grasses grassland ecosystems have led to significant changes Earth′s climate, geochemistry, biodiversity. abundance DNA sequence data, particularly chloroplast sequences, advances placing grass fossils within the family allows for a reappraisal family′s origins, timing, geographic factors that promoted diversification. We reconstructed time‐calibrated phylogeny inferred ancestral...
Background: The Neotropical woody bamboos (NWB) comprise a clade native to the Western Hemisphere. Taxonomically NWB are classified into three subtribes: Arthrostylidiinae, Chusqueinae, and Guaduinae. These distributed from northern Mexico West Indies south-central Chile Argentina sea level over 4,000 m in elevation. most recent comprehensive treatment of diversity classification was published just 20 years ago, knowledge has greatly increased interim. Questions / or Hypotheses: How much our...
Abstract Arthrostylidium , a Neotropical genus of 31 mostly clambering woody bamboo species, is member subtribe Arthrostylidiinae, which closely allied to Guaduinae. has long been catchall for species within its that display unusual morphology. While attempting clarify the circumscription we discovered three West Indian ( A. angustifolium, farctum, pinifolium ) possess putative Guaduinae features. We test hypothesis these should be classified and revise their taxonomy. Phylogenetic inference...
Water resources on the Canadian Prairies are at risk due to human settlement, agricultural intensification, and climatic change. The Red River Valley (RRV), Manitoba, Canada, represents a nexus of these cumulative stressors. Here land use change, combined with recent increase in precipitation runoff, imperils protective function tributaries draining Lake Winnipeg. A concerted research effort over past decade has greatly improved availability data knowledge about RRV. However, full synthesis...
Abstract The present study aims to expand the knowledge of phylogenetic relationships in Olyrinae, a subtribe herbaceous bamboos (Poaceae: Bambusoideae: Olyreae). Our focus is on Parodiolyra and Raddiella, two historically related genera that, with their sister Diandrolyra, form one four main lineages subtribe. Previous analyses suggested that not monophyletic, but its taxonomic boundaries relationship Raddiella remain uncertain due low sampling. We increased taxon sampling sequenced five...
Aquatic macrophyte species abundance and nutrient affinity are used in metrics to assess the trophic condition of lakes rivers. The development these indices is often regional, with inter-regional comparisons being complicated by lack taxonomic overlap. Here, we use a traits-based approach expand geographic scope existing metrics.
Species identification is vital to many disciplines. Digital technology has improved tools, but the direct use of characters with continuous states yet be fully realized. To achieve full for identification, I propose a classifier that calculates posterior probability (degree belief) in possible name assignments and an estimate relative evidence candidate annotations.A model species defined using morphological characters, algorithm naive Bayesian classifier, model, presented. A method...
Background and aims – Rhipidocladum , a woody bamboo genus distributed from Mexico to Argentina, has raceme like synflorescences of multiple spikelets. Six the 21 known species occur in Mexico. In this study, we present full description, distribution map, illustrations, photographs an unusual new endemic Jalisco, Additionally, provide updated key Material methods This study was based on fieldwork, literature, herbarium specimens review. Specimens collected were analysed photographed during...
Georeferencing is the process of aligning a text description geographic location with spatial based on coordinate system. Training aids are commonly created around georeferencing to disseminate community standards and ideas, guide accurate georeferencing, inform users about new tools, help evaluate existing geospatial data. The for Research Use (GRU) workshop was implemented as training aid that focused creation research use coordinates, included both data researchers providers, facilitate...
Mexico has a rich woody bamboo flora with over 52 species, 66% of which are endemic. represents the northernmost extent for many Neotropical genera such as widespread Rhipidocladum, genus characteristic fan-like branching and variable synflorescence morphologies. Only four species Rhipidocladum known from Mexico: R. bartlettii, martinezii, pittieri racemiflorum. Remarkably, ranges all overlap in Mexican state Chiapas. During field work Chiapas, flowering population was discovered that had...
Abstract Aulonemiella (Poaceae: Bambusoideae: Bambuseae: Arthrostylidiinae), a new Andean genus from Colombia and Ecuador, is described illustrated. It characterized by its delicate scandent, vining habit, filiform to narrowly triangular, reflexed culm leaf blades, short, foliage fimbriae, synflorescences with subtending bracts prophylls, awnless spikelets in spicate racemose clavate rachilla internodes. The species laegaardii (southern Ecuador) described, the combination A. ecuadorensis...
Three new woody bamboo species from South America, Rhipidocladum arenicolum Peru, R. cordatum Ecuador and rubrofimbriatum Venezuela, are here described illustrated. Based on morphological analysis, placed in sect. Racemiflorum. most similar to harmonicum, but differs its wider foliage leaf blades longer spikelets florets. by having cordate culm blades, more branchlets per node smaller, narrower as well closely spaced spikelets. is sibilans awnless, has fewer node, larger, blades.
Abstract The presence of sediment‐burrowing clubtail dragonflies (Gomphidae) may be directly related to riverine geomorphic properties. Their synchronous emergence behavior, marked by persistent exuviae, allows for the examination emerging adult‐stage habitats. Here we explore how adult and benthic larvae are hydrogeomorphic factors through regression modeling. Nine sites in two subwatersheds Huron Mountain region (Michigan, USA) were surveyed during periods: May/June 2021 August 2021....
Abstract— Arthrostylidiinae (Poaceae: Bambusoideae), a subtribe of Neotropical woody bamboos with diverse morphology, comprises 200 species classified in 16 genera. Previous studies supported monophyly the and recovered four major internal clades, however, some genera were found to be polyphyletic while others, like Aulonemia Colanthelia, either undersampled or not included. Colanthelia are complex both their taxonomy exhibit overlapping morphological characters. Prior molecular analyses...
This article examines an attempt by a team of Initial Teacher Training (ITT) tutors at the University East London to evaluate impact mobile technology, and iPads in particular, on their role professional development teachers. The study focused had tutor’s own as well considering outcomes for trainee teachers undertaking school-based placements. found that use raised issues challenge enhance established practice procedures within team, technical nature relating possibilities limitations...
Abstract— Rhipidocladum is the fourth most speciose genus in bamboo subtribe Arthrostylidiinae. The species this have a wide geographical distribution from North America (Mexico) to South (Argentina). In Mexico, there are five species, two of which endemic. During recent review herbaria, we found some specimens Guerrero, Jalisco, and Nayarit that do not fit morphologically with any presently known Mexico nor other genus. Here describe illustrate barbinode , new endemic Mexico. We...