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Articles 1 - 5 of 5
Full-Text Articles in Life Sciences
Habitat Heterogeneity Concentrates Predators In The Seascape: Linking Intermediate-Scale Estuarine Habitat To Striped Bass Distribution, Cristina Kennedy
Habitat Heterogeneity Concentrates Predators In The Seascape: Linking Intermediate-Scale Estuarine Habitat To Striped Bass Distribution, Cristina Kennedy
Masters Theses 1911 - February 2014
Predators are key components of aquatic ecosystems and innovative approaches to understanding their spatial distribution are imperative for research, effective management, and conservation. Discontinuities, created by abrupt changes between two unlike entities, are irregularly-distributed, intermediate-scale features that can have a disproportionate effect on organismal distribution within the seascape. Here I use the discontinuity concept to relate the distribution of a predator, striped bass (Morone saxatilis), to physical features within Plum Island Estuary (PIE), MA. I mapped the distribution of 50 acoustically-tagged striped bass during four monthly surveys at 40 sites to evaluate if heterogeneity in physical features concentrated …
Interactions Between Pieris Oleracea And Pieris Rapae (Lepidoptera: Pieridae) Butterflies, And The Biological Control Agents Cotesia Glomerata And Cotesia Rubecula (Hymenoptera: Braconidae)., Megan V. Herlihy
Masters Theses 1911 - February 2014
Pieris oleracea, formerly Pieries napi, was once a widespread pierid butterfly in New England until the introduction of a biological control agent, Cotesia glomerata. It has been suggested that C. glomerata is responsible for the range reduction of P. oleracea. There are been several introductions of a second more specialized biological control agent, Cotesia rubecula, to the United States since the 1960’s. My first goal was to determine the current distribution and status of P. rapae parasitoids and the effectiveness of C. rubecula as a biological control agent since its release. The findings of a survey …
You’Ll Find No Answers Here, Joseph M. Morelli
You’Ll Find No Answers Here, Joseph M. Morelli
Masters Theses 1911 - February 2014
One Studio Art graduate student's slog through the disciplines of art and science; noting the similarities, overlaps, and differences, and becoming utterly flummoxed in the process. It's about coming to terms with not knowing a whole lot about anything, really, but pressing on regardless.
Stiffness And Modulus And Independent Controllers Of Breast Cancer Metastasis, Dannielle Ryman
Stiffness And Modulus And Independent Controllers Of Breast Cancer Metastasis, Dannielle Ryman
Masters Theses 1911 - February 2014
One out of eight women in the United States will develop breast cancer during their lifetime. Ninety percent of cancer related deaths are due to metastasis. Metastasis is the biological process where individual or aggregate cancerous cells break away from the primary tumor site and colonize distant, non-adjacent locations throughout the body. It is my objectives to study how mechanical, topographical and biochemical cues affect metastatic breast cancer metastasis at an early developmental stage. ECM components have previously been shown to affect cell motility via ligand-receptor interactions, and physical cues, such as matrix stiffness and protein density. The primary tumor …
Characterization Of Genes Required For Preimplantation Embryo Development, Marc P. Maserati Jr
Characterization Of Genes Required For Preimplantation Embryo Development, Marc P. Maserati Jr
Masters Theses 1911 - February 2014
Preimplantation embryo development in the mouse is a time of rapid cellular morphological and molecular changes leading to embryo implantation for the generation of offspring. The Mager lab studies these events occuring between fertilization and implantation in order to better understand the initial events which set the stage for all future aspects of development. The result of this research impacts many scientific disciplines including in-vitro based means of embryo culture, establishment of epigenetic marks, differentiation and cellular reprogramming and can be used in translational research for the improvement of in-vitro culture techniques and develop novel therapies such as cell replacement …