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Articles 1 - 3 of 3
Full-Text Articles in Life Sciences
Anatomical Analysis Of Somatic Mutation Accumulation In Mimulus Guttatus, Amanda Burrell
Anatomical Analysis Of Somatic Mutation Accumulation In Mimulus Guttatus, Amanda Burrell
University Honors Theses
Plants are seemingly immortal in their abilities to survive long periods of dormancy in different life stages, live for thousands of years, and even grow into whole forests from one clone, all through a series of mitotic and meiotic events, but how many mutations do plants acquire in their lifetime? And just how many of these mutations are heritable? To answer these questions, first we must answer: how many cell divisions are there in the length of a stem? The purpose of this study is to answer just that by establishing a protocol for estimating the number of germ cell …
Genetic Diversity Correlates With Morphological Diversity Among Populations Of Achyrachaena Mollis, Rachel S. Bice
Genetic Diversity Correlates With Morphological Diversity Among Populations Of Achyrachaena Mollis, Rachel S. Bice
University Honors Theses
Biodiversity is important for ecosystem health and sustainability, especially in the current, rapidly changing climate. Understanding the underlying causes behind morphological variation will allow for more accurate predictions about how a population will respond to climate change, and potentially yield better natural resource management strategies. Achyrachaena mollis is an annual, self-fertilizing, range-limited, endemic species found in Northern California and Southern Oregon. This species depends primarily on wind seed dispersal for gene flow, making it a good study species in seed dispersal experiments. Additionally, A. mollis is more readily influenced by changes in its environment than a perennial due to its …
Impact Of The Urban Heat Mosaic On The Leaf Senescence In Two Acer Species, Jeffrey D. Smith
Impact Of The Urban Heat Mosaic On The Leaf Senescence In Two Acer Species, Jeffrey D. Smith
University Honors Theses
Due to the heterogeneity of the urban heat island, we can think of the variable influence of urbanization on air temperature as more of an urban heat mosaic. Climate change has caused a resurgence of interest in the way temperature affects how organisms, such as street trees, undergo cyclic changes in their life cycle. Such changes include budburst or, less commonly, timing of senescence. Little is known about how the urban heat mosaic could be affecting the phenology of different urban trees. Because street trees are one of the more prominent ecosystem engineers of the urban landscape, variable influences of …