Digital Commons Network^™

Differential Response Of Amp Activated Protein Kinase (Ampk) And Hsp70 To Temperature Stress In The Gastropod, Nucella Lapillus, Emily Zimmermann

All Theses And Dissertations

Populations of the gastropod Nucella lapillus are polymorphic for shell color, with light-colored shells predominating on warmer, wave-protected shores and dark-colored shells limited primarily to cooler, wave-exposed shores. During thermal stress, darker shells attain higher body temperatures than lighter shells. These results suggest that heat stress may determine field distribution patterns. However, there is currently little evidence of physiological consequences of thermal stress in these organisms. Following the guiding hypothesis that heat stress leads to cellular energy depletion, we explored whether the central energy regulator AMP-activated Protein Kinase (AMPK) is activated by heat stress. We compared this response in both …

From Cells To Coastlines: How Can We Use Physiology To Forecast The Impacts Of Climate Change?, Brian Helmuth

Faculty Publications

The interdisciplinary fields of conservation physiology, macrophysiology, and mechanistic ecological forecasting have recently emerged as means of integrating detailed physiological responses to the broader questions of ecological and evolutionary responses to global climate change. Bridging the gap between large-scale records of weather and climate (as measured by remote sensing platforms, buoys and ground-based weather stations) and the physical world as experienced by organisms (niche-level measurements) requires a mechanistic understanding of how ‘environmental signals’ (parameters such as air, surface and water temperature, food availability, water flow) are translated into signals at the scale of the organism or cell (e.g. body temperature, …

Spatio-Temporal Dynamics Of Biomes In The Northwestern United States (9000 Ybp To The Present), Christopher Caleb Stump

Graduate Student Theses, Dissertations, & Professional Papers

The goal of this study was to quantitatively analyze and map the vegetation composition of forest, grassland, and steppe ecosystems in the northwestern United States in the present and through the last 9,000 years. The modern analysis used canonical correspondence analysis (CCA) on pollen percentages from recent sediment cores reflecting modern vegetation assemblages and climates to evaluate the amount of influence of selected environmental variables on present species distributions. The fossil analysis used non-metric multi-dimensional scaling (NMDS) on a merged database containing relative pollen percentages from the last 9000 years. A predefined list of environmental parameters and floristically and ecologically …

Pengaruh Iklim Terhadap Kasus Demam Berdarah Dengue, Margareta Maria Sintorini

Kesmas

Penyakit demam berdarah dengue (DBD) telah menjadi penyakit endemik di kota-kota besar di Indonesia. Ramalan Intergovernmental Panel on Climate Change tahun 1996 menyebutkan insidens DBD di Indonesia dapat meningkat tiga kali lipat pada tahun 2070. Tujuan penelitian ini untuk membuat model dinamika sistem dengan analisis ekologi untuk mengetahui dinamika kejadian DBD dalam kaitan dengan pola variablitas iklim di DKI Jakarta. Rancangan penelitian digunakan adalah ecologic study dengan uji hipotesis, permodelan, simulasi, dan intervensi. Wawancara terhadap 844 responden untuk mengetahui tingkat pengetahuan, sikap, dan perilaku (PSP) masyarakat. Pengukuran faktor iklim meliputi curah hujan, suhu, kelembaban, intensitas cahaya, dan kadar CO2. Aspek …

Predicting Spotted Knapweed (Centaurea Maculosa) Range Expansion Near Missoula Montana Using Localized Climate And Elevation Data, William Frank Preston Cumming

Graduate Student Theses, Dissertations, & Professional Papers

Since the 1920s spotted knapweed (Centaurea maculosa) has adapted to a variety of habitats, including pastureland, rangeland, hay land, open forests, road sides, and ditches. In 2003 this plant species dominated more than five million acres in Montana, half of the total infestation of noxious weeds in the state. This project demonstrates the utility of using downscaled Parameter-elevation Regressions on Independent Slopes Model (PRISM) data for predicting vegetation movement within a 2°×2° geographical area surrounding Missoula County, Montana. This localized climate change data was correlated against current knapweed range using validation data from the Volunteer for Wilderness Program at the …

New Directions And Challenges In Spatial Dynamic Modelling Of Ecosystem Functions In Heterogeneous Landscapes As Basis For A Better Sustainable Landscape Management, Karl-Otto Wenkel, Ralf Wieland, Wilfried Mirschel

International Congress on Environmental Modelling and Software

The aim of this paper is to discuss scientific challenges and new possibilities for a better modelling of consequences of land use changes in heterogeneous landscapes on ecosystem functions in space and time. The landscape or regional scale means an area of about 100 km2 up to some 1000 km2. Main problems on this scale are high complexity, structural diversity, ecological heterogeneity and uncertainty in data, in understanding of the process dynamic and by uncertainty in models.

New Directions And Challenges In Spatial Dynamic Modelling Of Ecosystem Functions In Heterogeneous Landscapes As Basis For A Better Sustainable Landscape Management, Karl-Otto Wenkel, Ralf Wieland, Wilfried Mirschel

International Congress on Environmental Modelling and Software

The aim of this paper is to discuss scientific challenges and new possibilities for a better modelling of consequences of land use changes in heterogeneous landscapes on ecosystem functions in space and time. The landscape or regional scale means an area of about 100 km2 up to some 1000 km2. Main problems on this scale are high complexity, structural diversity, ecological heterogeneity and uncertainty in data, in understanding of the process dynamic and by uncertainty in models.

Human Activities And Global Environmental Changes: Implications For The People And Landscapes Of The Tibetan Plateau, Julia A. Klein

HIMALAYA, the Journal of the Association for Nepal and Himalayan Studies

"This paper challenges the commonly held Western perception that the people and landscapes are similar across the entire Tibetan Plateau region..." Article abstract, p. 23

An Investigation Into The Design Qualities, Ecological Requirements, And Potential Use Of Some Native Trees And Shrubs Of The Mountains Of Northeastern Utah, Richard K. Sutton

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purposes of this paper are threefold: 1) To provide a justification for the increased use of native plants in mountain land development, not only in northeastern Utah, but in the entire western United States. 2) To investigate and delineate what the physical needs of a plant materials list are. 3) To provide a nearly comprehensive list of basically unused plants native to northeastern Utah and to highlight their landscaping potentials based on the earlier investigation.

Also touched upon, to help landscape architectural students and professionals alike, are two cursory case studies and a chapter which deals briefly with the …