Search Results - "Shefferson, Richard P."

evolutionary ecology of vegetative dormancy in mature herbaceous perennial plants by Shefferson, Richard P

“…1. I present an evolutionary ecology interpretation of vegetative dormancy in mature herbaceous perennials. This kind of vegetative dormancy has been noted for…”
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Plant–plant interactions determine natural restoration of plant biodiversity over time, in a degraded mined land by Bashirzadeh, Maral, Shefferson, Richard P., Farzam, Mohammad

“…Restoration of degraded environments is essential to mitigate adverse impacts of human activities on ecosystems. Plant–plant interactions may provide effective…”
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Does evolutionary history determine specificity in broad ecological interactions? by Shefferson, Richard P., Bunch, William, Cowden, Charles C., Lee, Yung‐I, Kartzinel, Tyler R., Yukawa, Tomohisa, Downing, Jason, Jiang, Hong, Bonser, Stephen

“…Most species engage in broad interactions, in which they interact with multiple partner species. The evolutionary processes that generate such generalized…”
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Longitudinal analysis in Plantago: strength of selection and reverse age analysis reveal age-indeterminate senescence by Shefferson, Richard P., Roach, Deborah A.

“…1. Senescence is usually viewed as increased age-specific mortality or decreased age-specific fecundity due to the declining ability of natural selection to…”
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Highly diverse and spatially heterogeneous mycorrhizal symbiosis in a rare epiphyte is unrelated to broad biogeographic or environmental features by Kartzinel, Tyler R., Trapnell, Dorset W., Shefferson, Richard P.

“…Symbiotic interactions are common in nature. In dynamic or degraded environments, the ability to associate with multiple partners (i.e. broad specificity) may…”
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Plant–soil feedbacks and the introduction of Castanea (chestnut) hybrids to eastern North American forests by Coughlin, Erin M., Shefferson, Richard P., Clark, Stacy L., Wurzburger, Nina

“…The reintroduction of disease‐resistant hybrids is a commonly proposed solution to the introduction of pathogens and pests that weaken or eliminate native…”
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Mycorrhizal interactions of orchids colonizing Estonian mine tailings hills by Shefferson, Richard P, Kull, Tiiu, Tali, Kadri

“…Northeastern Estonia is home to extensive oil shale mines. Associated with these are desolate and environmentally damaging hills of ash and semicoke tailings…”
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Phylotranscriptomic analysis and genome evolution of the Cypripedioideae (Orchidaceae) by Unruh, Sarah A., McKain, Michael R., Lee, Yung-I, Yukawa, Tomohisa, McCormick, Melissa K., Shefferson, Richard P., Smithson, Ann, Leebens-Mack, James H., Pires, J. Chris

“…Premise of the Study The slipper orchids (Cypripedioideae) are a morphologically distinct subfamily of Orchidaceae. They also have some of the largest genomes…”
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Post-Fire Recovery of Plant Biodiversity Changes Depending on Time Intervals since Last Fire in Semiarid Shrublands by Bashirzadeh, Maral, Abedi, Mehdi, Shefferson, Richard P., Farzam, Mohammad

“…Fire is a key disturbance affecting plant biodiversity patterns and evolution. Although a wide range of studies have shown important impacts of fire on…”
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Effective population size in a partially clonal plant is not predicted by the number of genetic individuals by Gargiulo, Roberta, Waples, Robin S., Grow, Adri K., Shefferson, Richard P., Viruel, Juan, Fay, Michael F., Kull, Tiiu

“…Estimating effective population size (Ne) is important for theoretical and practical applications in evolutionary biology and conservation. Nevertheless,…”
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Mycorrhizal diversity in Apostasia (Orchidaceae) indicates the origin and evolution of orchid mycorrhiza by Yukawa, Tomohisa, Ogura-Tsujita, Yuki, Shefferson, Richard P, Yokoyama, Jun

“…We demonstrated that "orchid mycorrhiza," a specialized mycorrhizal type, appeared in the common ancestor of the largest plant family Orchidaceae and that the…”
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Life-history costs make perfect sprouting maladaptive in two herbaceous perennials by Shefferson, Richard P., Warren, Robert J., Pulliam, H. Ronald

“…1. Why some herbaceous plant species refrain from sprouting in some years is a longstanding puzzle in plant ecology. When vegetatively 'dormant', the plant…”
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Temporal variation in reproductive costs and payoffs shapes the flowering strategy of a neotropical milkweed, Asclepias curassavica by Kellett, Kimberly M., Shefferson, Richard P.

“…A central goal of evolutionary ecology is to understand the factors that select for particular life history strategies, such as delaying reproduction. For…”
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An empirical test of partner choice mechanisms in a wild legume–rhizobium interaction by Simms, Ellen L, Taylor, D. Lee, Povich, Joshua, Shefferson, Richard P, Sachs, J.L, Urbina, M, Tausczik, Y

“…) to a plant available form in exchange for photosynthates. Biological market theory suits this interaction because individual plants exchange resources with…”
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High specificity generally characterizes mycorrhizal association in rare lady's slipper orchids, genus Cypripedium by SHEFFERSON, RICHARD P., WEIß, MICHAEL, KULL, TIIU, TAYLOR, D. LEE

“…Lady's slipper orchids (Cypripedium spp.) are rare terrestrial plants that grow throughout the temperate Northern Hemisphere. Like all orchids, they require…”
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Predicting evolution in response to climate change: the example of sprouting probability in three dormancy-prone orchid species by Shefferson, Richard P., Mizuta, Ryo, Hutchings, Michael J.

“…Although many ecological properties of species respond to climate change, their evolutionary responses are poorly understood. Here, we use data from long-term…”
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The evolutionary impacts of conservation actions by Shefferson, Richard P., Mason, Chase M., Kellett, Kimberly M., Goolsby, Eric W., Coughlin, Erin, Flynn, R. Wes

“…Conservation management for environmental sustainability is now ubiquitous. The ecological effects of these actions are well-intentioned and well-known…”
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Life history strategy in herbaceous perennials: inferring demographic patterns from the aboveground dynamics of a primarily subterranean, myco-heterotrophic orchid by Shefferson, Richard P., McCormick, Melissa K., Whigham, Dennis F., O'Neill, John P.

“…Myco-heterotrophs are non-photosynthetic plants that parasitize mycorrhizal fungi for their nutritional requirements, especially carbon. Because green plants…”
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Longitudinal analysis of Plantago : adaptive benefits of iteroparity in a short-lived, herbaceous perennial by Shefferson, Richard P., Roach, Deborah A.

“…Theory suggests that iteroparity may confer greater fitness than semelparity in situations in which temporal environmental variation is high and unpredictable…”
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Adult whole-plant dormancy induced by stress in long-lived orchids by Shefferson, Richard P., Kull, Tiiu, Tali, Kadri

“…Dormancy is a condition in which an herbaceous perennial does not sprout for one or more growing seasons. To test whether dormancy is an adaptive response to…”
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