A5072363170- Plant Diversity and Evolution
- Botany, Ecology, and Taxonomy Studies
- Plant and animal studies
- Ecology and Vegetation Dynamics Studies
- Lichen and fungal ecology
- Insect and Pesticide Research
- Insect and Arachnid Ecology and Behavior
- Mycorrhizal Fungi and Plant Interactions
- Geology and Paleoclimatology Research
- Plant Pathogens and Fungal Diseases
- Plant Parasitism and Resistance
- Rangeland and Wildlife Management
- Botany and Plant Ecology Studies
- Mediterranean and Iberian flora and fauna
- Plant and Fungal Species Descriptions
- Bee Products Chemical Analysis
- Archaeology and Natural History
- Genetic diversity and population structure
- Plant Reproductive Biology
- Species Distribution and Climate Change
- Plant Molecular Biology Research
- Soybean genetics and cultivation
Plymouth State University
2017-2024
Southern Oregon University
2017
Ashland (United States)
2017
Rancho Santa Ana Botanic Garden
2012-2015
Claremont Graduate University
2012-2015
Summary The evolution of tube-like floral morphologies that control pollen release via small openings (functionally poricidal flowers) represents a taxonomically and geographically widespread instance repeated independent functionally similar morphology. Poricidal flowers are often closely associated with buzz pollination by bees, but we lack an updated angiosperm-wide survey their phylogenetic distribution. We identify all presently known angiosperm genera containing literature survey....
In the Northern Hemisphere, Tertiary relict disjunctions involve older groups of warm affinity and wide disjunctions, whereas circumboreal distributions in Arctic-Alpine taxa tend to be younger. species are occasionally derived from groups, but Pyrola species, particular, exceptional they might have occurred multiple times. The aim this study was reconstruct biogeographic history based on a clear phylogenetic analysis explore how genus attained its distribution. Estimates divergence times...
Premise of the Study Species formation is an intuitive endpoint reproductive isolation, but circumscribing taxa that arise during speciation can be difficult because gene flow, morphological continuity, hybridization or polyploidization, and low sequence variation among newly diverged lineages. Nonetheless, species complexes are ubiquitous, their classification essential for understanding how diversity influences ecosystem function. Methods We used modern sequencing technology to identify...
Foraging behavior frequently plays a major role in driving the geographic distribution of animals. Buzzing to extract protein-rich pollen from flowers is key foraging used by bee species across at least 83 genera (these comprise ~58% all species). Although buzzing widely recognized affect ecology and evolution bees flowering plants (e.g., buzz-pollinated flowers), global patterns drivers biogeography remain unexplored. Here, we investigate within each family how differ with respect species....
Abstract The Pyrola picta species complex (Pyroleae: Monotropoideae: Ericaceae) is thought to be composed of three morphological taxa within a single species, picta. All typically inhabit mature coniferous or Fagaceous forests North America west the Rocky Mountains from British Columbia Baja California, Mexico between ca. 250 and 3,000 m in elevation. Taxa P. are distinguished each other on basis leaf morphology degree which they employ mycoheterotrophy rather than photosynthesis, but...
Abstract A new species of Pyrola was discovered from the Pacific Northwest Physiographic Province western North America. This belongs to picta complex (section Scotophylla ), comprising closely related P. picta, dentata , and aphylla . The shares a similar habitat with other members complex, but differs in that its geographic range is restricted Northwest. have wider ranges throughout montane Although phylogenetically sister it nearly indistinguishable morphologically which poses challenge...
The Pyrola picta species complex of western North America comprises four (P. picta, P. dentata, aphylla and crypta) that grow sympatrically in some parts their collective ranges, have remarkably similar flowers share pollinators. These do not exhibit the genetic signatures typical random or heterospecific mating, but instead show divergence patterns indicating they maintain surprising levels reproductive isolation. To better understand how boundaries are maintained, current study uses...
Delimiting biodiversity units is difficult in organisms which differentiation obscured by hybridization, plasticity, and other factors that blur phenotypic boundaries. Such work more complicated when the focal are subspecies, definition of has not been broadly explored era modern genetic methods. Eastwood manzanita (Arctostaphylos glandulosa Eastw.) a widely distributed morphologically complex chaparral shrub species with much subspecific variation, proven challenging to categorize....
SUMMARY Foraging behavior frequently plays a major role in driving the geographic distribution of animals. Buzzing to extract protein-rich pollen from flowers is key foraging used by bee species across at least 83 genera (these comprise ∼58% all species). Although buzzing widely recognized affect ecology and evolution bees flowering plants (e.g., buzz-pollinated flowers), global patterns drivers biogeography remain unexplored. Here, we investigate within each family how differ with respect...
Claytonia lanceolata is a widespread perennial herb that typically blooms in areas where snow persists, occurring along mountain corridors from Canada to southern California. Numerous varieties have been described for this species, but most are not recognized under current taxonomic treatments. The discovery of new populations C. California reported, and the uncertainties associated with species complex var. peirsonii discussed. Subtle characters distinguishing may be obscured during process...
Abstract Premise Floral evolution in large clades is difficult to study not only because of the number species involved, but also they often are geographically widespread and include a diversity outcrossing pollination systems. The cosmopolitan blueberry family (Ericaceae) one such example, most notably pollinated by bees multiple nectarivorous birds. Methods We combined data on floral traits, ecology, geography with comprehensive phylogeny examine structuring across systems continents....
Pebble plains are a unique edaphic environment known only from the high valleys of San Bernardino Mountains, California. The pebble have long been celebrated for vascular plant diversity they support, including at least six taxa endemic to Mountains. Past research has shown that soils differ most notably nearby non-pebble in terms their clay content and loose, stony structure, especially upper-most horizon on soil surface. upper is probably result frost-heaving erosion particles by wind;...