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 62 for “"multiple stressors"”.
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Freshwater fishes and microplastics in an era of multiple stressors
… occurs in combination with other interacting multiple stressors, for example urbanisation and parasite infection, and may potentially cause a range of synergistic negative impacts. Understanding the patterns of microplastic ingestion and the interactive impacts in relation to additional …
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The Interactive Effects of Multiple Stressors on Lithobates catesbeianus and Anaxyrus americanus
… thesis by examining the interactive effects of multiple stressors on two species of larval amphibians. The study investigated the individual and combined effects of a major environmental contaminant (Glyphosate, commercial Roundup ®), increased temperatures, and predatory cues on survival, …
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Paleolimnological Study of Chironomidae (Diptera) Assemblage Responses to Multiple Stressors in Lake Nipigon (Northwestern Ontario)
… chironomid assemblages and their responses to multiple stressors in nearshore areas, as limnological data for Lake Nipigon is only sparsely available. Core surveys conducted show generalist and moderately tolerant taxa that suggest moderately warm, vegetated, and nutrient-rich conditions in the …
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Benthic macroinvertebrate community structure responses to multiple stressors in mining-influenced streams of central Appalachia USA
… data collected from 15 streams, each visited multiple times during 2013-2014. BMC structure changed across seasonal samples. Total benthic macroinvertebrate densities did not appear to be impacted by SC during any months, but reduced densities of SC-sensitive taxa were offset by increased …
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The Effects of Multiple Stressors on Stream Communities: The Convergence of Drought, Nutrient Pollution, and Invasive Species
… from a variety of ecological and environmental stressors. Three common stressors in these systems, drought, nutrient pollution, and invasive species, have wide-ranging effects on stream population- community- and ecosystem dynamics. We have a broad understanding of how each of these stressors …
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Impacts of Climate Change and Multiple Stressors on Water Levels and Phytoplankton in Small Temperate Lakes Within the Great Lakes Region Over Three Decades
… of climate change and additional anthropogenic stressors on water quantity and quality in two study areas with minimal anthropogenic disturbance within the Great Lakes region. Between 1984 and 2014, water levels dropped by an average of 50 cm in northern Wisconsin lakes. We found that 49% of the …
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The Applied Phycology and Biochemistry of Managed Reservoirs in the East of England
… and adaptation strategies that can combat multiple stressors (i.e. drought and eutrophication). This is especially true for reservoirs in the East of England, which are facing climate extremes such as heat and drought to a greater extent than other parts of the UK. To understand how these …
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Resilience in marine ecosystems: the effects of environmental and ecological context on ecosystem multistability
… investigating: 1) The mechanisms that determine multiple forms of ecological stability by manipulating key components of a food web that are thought theoretically to drive stability, i.e. food web connectance, predator-prey interaction strengths and species richness; 2) The effects of multiple …
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The lived experience of new graduate baccalaureate-prepared Registered Nurses working in an acute care hospital setting
… Results found that new graduate RNs experience multiple stressors as they acclimate to their new roles. The primary stressors that were identified by the participants included high nurse-to-patient ratios, short orientation periods, time management and prioritizing, and lack of time with their …
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"The ""strong black woman"": an intersectional analysis of African American women's double bind"
… in the lives of African American women who face multiple stressors, including poverty, racism, and sexism.
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Narrative exposure therapy to treat traumatic stress in middle eastern refugees: a clinical trial
… around the world. Refugees often experience multiple stressors and traumas across the various stages of their journey such as witnessing political upheaval, loss of property and loved ones, a perilous journey, and difficulty in countries of resettlement. The multiple stressors that refugees …
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Characterizing the effects of ocean acidification in larval and juvenile Manila clam, Ruditapes philippinarum, using a transcriptomic approach
… species might also be capable of coping with multiple stressors associated with global climate change. Manila clams could therefore represent a model for studying physiological mechanisms associated with successful acclimation of populations to ocean acidification.
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Marine stressor and receptor interactions: A new approach to incorporate multiple stressor impacts into marine spatial management
… needed which quantify the accumulating impact of multiple stressors on coastal species and habitats. This thesis investigates stressor-induced change in the density and distribution of subtidal benthic invertebrates from two globally pervasive stressors (sedimentation and bottom fishing), to …
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Exploring the views of adolescent boys in school about how they cope with their worries or concerns
… of coping strategies to help them cope with the stressors they face, and the role of schools in supporting young people’s mental health is becoming increasingly recognised. An exploratory sequential mixed-method design was adopted to explore the views of adolescent male pupils (aged 16 – 17 …
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Roots adhesion processes in the Mediterranean seagrass Posidonia oceanica
… support, yet its meadows have declined due to multiple stressors. Restoration remains limited by slow growth and poor understanding of early anchorage. The study aims to clarify the morpho-functional and biomechanical traits driving seedling adhesion to hard substrates, with emphasis on root …
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Combined Effects of Dissolved Oxygen and Temperature On Aerobic Respiration and Respiratory Recovery Responses of the Spioniform Polychaete, <i>Streblospio gynobranchiata</i>, In Relation to Body Size
… within coastal ecosystems. These two primary stressors likely interact as they elicit opposing physiological responses from marine organisms. Metabolic depression is typically associated with hypoxia, while metabolic rates increase with temperature. Moreover, physiological effects of combined …
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Psychosocial Adjustment Among Refugee Children
<p>Refugee children are faced with multiple stressors. These stressors include unresolved issues with country of origin, transition to a new country, and long-term adjustment. War is a traumatic situation. For children who have gone through the trauma of war, parents may contribute one of the major …
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A Theory of Misdiagnosis: A Qualitative Analysis of the Diagnosis Journey for an Ambiguous, Visible Disease With Stigmatizing Symptoms
… receive a diagnosis for a rare disease despite multiple attempts to seek help for unresolved symptoms. Using theories from social construction, labeling theory, social support, and health care utilization, three broad research questions are answered: 1) How do patients recognize a diagnostic …
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Emotional abuse of children: issues for intervention
… was more frequently located in those exposed to multiple stressors. It was most clearly manifested through behaviours which constituted a misuse of power. Concerning intervention itself, a notable contribution of the study was the identification of important life-lines for emotionally abused …
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Exploring the mental health experiences of young mothers affected by HIV in South Africa
… Furthermore, young mothers experienced multiple stressors and challenges which affected their mental health, including school disruptions, coming to terms with their HIV status and unintended pregnancy, and experiences of violence. Adjusting to their new realities and transitioning into …
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