Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 71 for “"Common garden"”.
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A Meta-Analysis and Risk Assessment of Heavy Metal Uptake in Common Garden Vegetables.
<p>Peer reviewed literature was searched to identify research pertaining to the uptake of heavy metals (As, Cd, Pb and Zn) by vegetables (cabbage, carrot, lettuce, and radish). The objectives of this research were to 1) determine the relationship between heavy metal concentrations in the soil and …
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Hydraulic trait variation in Protea repens with change in climate in space and time
… climatic gradient in the CFR relative to a common garden experiment. I then compare the contemporary trait-climate relationships with a 21 year old xylem anatomy dataset. In the common garden experiment I explore xylem and leaf trait variation in P. repens from thirteen populations …
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Glycosidic Enzymes of the Tropaeolum Majus
… hemisphere. It is the well-known Indian cress or common garden nasturtium.
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Local adaptation to climate change in a calcareous grassland system
… long-term climate manipulations at BCCIL using a common forb, Plantago lanceolata. Plantago lanceolata is a rosette-forming, perennial herb of wide-ranging distribution, and one of the more common forbs in calcareous grasslands, including BCCIL. In the first study I used a common garden approach …
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Testing Subspecies Limits in <i>Monardella Villosa</i>
… to these different habitats. I grew plants in a common garden at Cal Poly, San Luis Obispo to determine if the morphological differences were genetically based. I also conducted a reciprocal transplant of the two subspecies between inland and coastal populations to determine if they are locally …
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Evolutionary and genetic basis of morphological variation in Populus nigra (European black poplar)
… climatic differences between sites. A previous common garden study of Populus nigra L. showed morphological variation to be highly heritable and significantly differentiated among populations, indicating phenotypic differences may be adaptive.<br/><br/>This project studied the evolutionary …
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Mechanisms Promoting Spatial and Temporal Variability in Plant Defense
… neighboring plant community. I then conducted a common garden experiment to empirically measure genetic variability of resistance and tolerance and quantify their associated fitness costs and selection gradients. Lastly, I conducted a field experiment to test the prediction that successional …
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The molecular ecology of Vaccinium macrocarpon Aiton, the American cranberry
… and island-like biogeography. Field and common garden experiments in which nutrients were manipulated were performed to test for an inverse relationship between phenotypic plasticity and genetic heterogeneity. Random amplified polymorphic DNA (RAPD) profiling was coupled with ecological …
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Biotic Interaction of Invasive, Early-Succession Trees and Their Effects on Community Diversity: a Multi-Scale Study Using the Exotic Invasive Ailanthus altissima and the Native Robinia pseudoacacia in the Mid-Appalachian Forest of Eastern United States
… a regional scale. These two subject species are common and coexist in early-successional eastern deciduous forest. The interactions between these two common species are important to community structure and canopy tree regeneration. To address the type and extent of interactions of these two …
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Atlantic sturgeon growth responses to dual seasonal spawning, latitudinal thermal regimes, and Chesapeake Bay environmental stressors
… 1562 observations of Atlantic sturgeon. In common garden experiments, thermal performance of juveniles from two populations of Atlantic sturgeon was evaluated. Finally, a growing-degree-day (GDD) model was developed to evaluate the phenology of spawning and early growth across latitudinally …
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Adaptation to altitude in Heliconius butterflies
… were less tolerant to heat in the wild, while common-garden reared individuals of H. melpomene were equally tolerant after one generation, showing plasticity for this trait. Thirdly, with a dataset of over 600 whole-genome sequenced H. erato and H. melpomene individuals from four elevational …
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Role of Hybridization in a Biological Invasion: An Experimental Study with Silene Latifolia
… weed Silene latifolia as a model. I used a common garden experiment to examine whether crossing parents of different ancestry results in offspring with differing quality. Plants were pollinated in three treatments reflecting parent plants within the same population (P), between-populations, …
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Genetic and Morphological Analyses of White Spruce in North America
… in traits by comparing needle morphologies of common garden and naturally grown individuals.
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Consequences of global redistribution on the ecology and evolution of the invasive weed Pastinaca sativa and its associated insect fauna
… infestation (2004 – 2009) in a large-scale common garden experiment. In Chapter 3, I identified leaf volatiles that mediate oviposition by webworms to determine whether plants can experience selection to deter oviposition. In Chapter 4, I used ribosomal internally transcribed spacers (ITS) …
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Genetic Constraints and the Evolution of Chemical Defenses in Multiple Tissues of Boechera stricta
… the defense profiles of different tissues share common genetic controls but differ in selective pressures, evolution of effective defenses within the whole plant may be constrained. In my dissertation, I investigate how glucosinolates, biologically active secondary metabolites, evolve in multiple …
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Latitudinal Gradient Facilitates Adaptive Population Differentiation of Campanulastrum americanum (American Bellflower)
… were reciprocally transplanted into two common garden sites positioned in the most northern and southern extent of the species distribution: Hastings, MI and Columbus, GA. I observed adaptive population differentiation of northern and southern populations. Both reproductive and …
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Functional traits and resource-use strategies of native and invasive plants in Eastern North American forests
… in resource capture strategies. Second, using a common garden to control for environment, I measured leaf physiological traits relating to resource investments, carbon returns, and resource-use efficiencies in 14 native and 18 non-native invasive species of common genera found in ENA …
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Phenotypic Variation in Native North American and Invasive Chinese Populations of Plantago Virginica
… and harbor diseases in the introduced range. A common garden study was conducted at the Georgia Southern University greenhouse, comparing twenty populations of <em>P. virginica</em> from both the native North American and invasive Chinese ranges. I examined if there were genetically based …
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Vliv dominantních druhů stromů na půdní vlastnosti
… In this work I compared data from 40 "common garden" experiments in which different tree species were planted in adjacent plots on homogenous soil. C storage was compared on three types of afforested soils with different previous land use. Forests and former arable soils represented the …
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Factors influencing the induction of diapausing egg production in the calanoid copepod Diaptomus leptopus
… the induction of diapausing eggs, I performed a common-garden experiment in which mating pairs from each of the four populations were exposed to different temperature and photoperiod regimes: long-day (16:8h L/D) 25$\sp\circ$C, long-day 10$\sp\circ$C, short-day (8:16 L/D) 25$\sp\circ$C and …
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