Browsing by Author "Goodwillie, Carol"
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Are algal genes in nonphotosynthetic protists evidence of historical plastid endosymbioses?
Stiller, John W.; Huang, Jinling; Ding, Qin; Tian, Jing; Goodwillie, Carol (East Carolina University, 2009)Background: How photosynthetic organelles, or plastids, were acquired by diverse eukaryotes is among the most hotly debated topics in broad scale eukaryotic evolution. The history of plastid endosymbioses commonly is ... -
The best of both worlds? A review of delayed selfing in flowering plants
Goodwillie, Carol; Weber, Jennifer J. (2018-04-06)PREMISE OF STUDY: In a seminal body of theory, Lloyd showed that the fitness consequences of selfing will depend on its timing in anthesis. Selfing that occurs after opportunities for outcrossing or pollen dispersal can ... -
Components of Reproductive Isolation between Subspecies of an Annual Plant
Arthur, Evan B. (2014)Reproductive isolation is required in the divergence of species. The components of reproductive isolation are separated into either ecological or genetic components. In plants these include: habitat, temporal, pollinator ... -
Conspecific pollen precedence and its contribution to speciation in Triodanis perfoliata
Modzik, Adrian (2015)Speciation is the process by which one species diverges into two distinct species. To fully understand speciation, it is important to understand reproductive isolation. Reproductive isolation, the inability of two individuals ... -
Delayed Self-Fertilization in Triodanis perfoliata
Patel, Hetal, R (2014)Self-fertilization is a reproductive technique that allows a plant to produce offspring even when pollinators may be scarce. Utilizing the process of delayed selfing, a species is with the benefits of both cross-pollination ... -
Developmental Patterns of Cleistogamy and Chasmogamy in Triodanis perfoliata
Bernetski, Elizabeth (2015-05)Some plants exhibit mixed mating, in which individual plants utilize both cross and self-fertilization. Dimorphic cleistogamy is one form of mixed mating. In plants that display dimorphic cleistogamy, both chasmogamous ... -
Distinct Microbial Communities Alter Litter Decomposition Rates in a Fertilized Coastal Plain Wetland
Koceja, Megan; Bledsoe, Regina B.; Goodwillie, Carol; Peralta, Ariane (2021) -
Ecology, Evolution and Undergraduates: Integrating Education and Research in a Long-term Field Study
Goodwillie, Carol (2013-04-11) -
Effects of nutrient addition on plant community composition: a functional trait analysis in a long-term experiment
Tate, Emily M (East Carolina University, 2018-07-19)The effects of nutrient availability on plant community composition and diversity have been well-documented, but the mechanisms behind the community response remain unclear. Plant species interact with variation in the ... -
Effects Of Nutrient Availability And Disturbance On The Composition And Diversity Of Soil Microorganisms
Thigpen, Joshua C. (East Carolina University, 2015)Determining how factors such as disturbance and nutrient availability affect species diversity in a community has been a major goal of community ecology. The purpose of this study was to look at how species diversity and ... -
Examining Chronic Nutrient Enrichment Effects on Wetland Plant-Microbe Interactions Using a Trait-Based Approach
Garcia, Aied (East Carolina University, 2023-01-05)Mutualistic plant-microbe relationships that have evolved under nutrient starved environmental conditions are important for generating and maintaining plant and microbial biodiversity. However, human activities associated ... -
Hybridization in two subspecies of triodanis perfoliata, a cleistogamous annual plant (campanualaceae)
Stewart, Emily Rose (East Carolina University, 2013)The presence of a cleistogamous (obligately selfing) plant breeding system may have implications for reproductive isolation between species. The effects of this trait on plant hybridization previously have received little ... -
Inbreeding Depression and Mixed Mating in Leptosiphon jepsonii: A Comparison of Three Populations
Goodwillie, Carol; Knight, Mary Catherine (East Carolina University, 2006-08)Background and Aims: Inbreeding depression is thought to play a central role in the evolution and maintenance of cross-fertilization. Theory indicates that inbreeding depression can be purged with self-fertilization, ... -
Investigating the role of soil legacy effects and community engagement in the management of Lespedeza cuneata, an invasive legume
Hodges, Matthew Steven (East Carolina University, 2020-11-23)Invasive plant species present a growing threat to biodiversity. Many invasive plants are able to recruit microbial symbionts in their novel range and establish plant-soil feedbacks that influence growth and fitness. These ... -
Investigating the Seed Bank of a Wetland Plant Community in a Long-Term Mowing and Fertilization Experiment
Harrelson, Peyton S (East Carolina University, 2023-05-15)The seed bank of a plant community—the store of viable, dormant seeds below the soil surface—holds a legacy of its past composition and may have potential for restoration following habitat degradation. An ongoing 20-year ... -
LONG-TERM FERTILIZATION AND SOIL MOISTURE INTERACT TO INFLUENCE PLANT AND BACTERIAL COMMUNITIES IN A LOW NUTRIENT WETLAND
Stephens, Daniya S (East Carolina University, 2022-12-20)Human activities such as urbanization and intensive agriculture modify nutrient and water cycles in significant ways. Changes to nutrient and water cycles can cause disruptions to plant-microbe mutualisms, especially in ... -
Reproductive Plasticity In Two Subspecies Of A Cleistogamous Plant, Triodanis Perfoliata
Colbert, Lauren I. (East Carolina University, 2015)Dimorphic cleistogamy is an intriguing reproductive strategy in which a plant produces both closed (cleistogamous), obligately selfing flowers and open (chasmogamous) flowers. Phenotypic plasticity in the production of ... -
The Effects of Mowing and Fertilization on Plant Species Diversity
Moore, Kaila Geneva (East Carolina University, 2021-05-28)It is thought that species diversity is maximized when ecological disturbance is present because both weedy species and good competitors can coexist. In addition, nutrient availability maximizes species diversity when it ... -
What Factors Maintain the Mixed Mating System of a Local Annual Plant, Triodanis perfoliata?
O'Brien, Anna C (East Carolina University, 2019-05-02)A plant capable of reproducing by cross- and self-fertilization is known to have a mixed mating system. This system is an evolutionary puzzle to many researchers because the factors maintaining both outcrossing and selfing ...