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 115 for “"spatial and temporal patterns"”.
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Vegetation ecology of springs: ecological, spatial and temporal patterns
… depleted the buffering capacities of soil and groundwater, what lead to an impairment of forests, headwaters, and lakes. Even though the depositions were reduced considerably since the early 1990s, the recovery of catchments was found to occur time-delayed. The grade of recovery was found …
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Spatial and Temporal Patterns in a Chihuahuan Desert Fish Assemblage
No abstract prepared.
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Modelling the Transmission of Dengue Fever Based on Spatial and Temporal Patterns
… that has transmit alarmingly in recent decades and has now affected the populations of roughly 100 nations, primarily in tropical and subtropical regions. Approximately 390 million cases of dengue fever are reported each year among people living in 128 countries, according to the World Health …
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Soft sediment ecology of Lough Hyne Marine Reserve - spatial and temporal patterns
Distribution of soft sediment benthic fauna and the environmental factors affecting them were studied, to investigate changes across spatial and temporal scales. Investigations took place at Lough Hyne Marine Reserve using a range of methods. Data on the sedimentation rates of organic and inorganic …
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Environmental variables influencing spatial and temporal patterns of fish spawning and recruitment
ABSTRACT Spawning times and spawning intensity during the life cycles of some fish species found off South Africa and Norway were synthesized using data collected from the literature. The comparison of temporal patterns in spawning of South African fish species showed variable spawning times and …
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Spatial and Temporal Patterns of Areal and Volumetric Phytoplankton Productivity of Lake Texoma
… four stations, using the oxygen change method and laboratory incubation. Mean values of the photosynthetic parameters, PBmax and alphaB ranged from 4.86 to 46.39 mg O2.mg Chl-1.hr-1 for PBmax and 20.06 to 98.96 mg O2.mg Chl-1.E-1.m2 for alphaB. These values were in the range to be expected for …
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Spatial and temporal patterns of visibility in Las Vegas, July 2000--July 2001
… County Department of Air Quality Management and the Nevada Department of Motor Vehicles funded a one-year study of visibility trends in Las Vegas. The Desert Research Institute conducted this study from July 2000 to July 2001. The monitoring sites for this study were chosen to represent three …
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Surface Urban Heat Island Effect in Athens: A Comprehensive Analysis of Spatial and Temporal Patterns
… του Ιουλίου 2023 χρησιμοποιήθηκαν εικόνες Landsat 8 ανάλυσης 30 m. Κατά τη διάρκεια του επεισοδίου, η ημερήσια LST στις βιομηχανικές ζώνες, όπως προέκυψε από τον Landsat, ξεπέρασε τους 50 °C σε μεμονωμένα εικονοστοιχεία, με τον Ασπρόπυργο να εμφανίζει τις υψηλότερες τιμές — αποτέλεσμα των …
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Reconstructing the Spatial and Temporal Patterns of Daily Life in the 19th Century City: A Historical GIS Approach
In recent years, historians and historical geographers have become interested in the use of GIS to study historical patterns, populations, and phenomena. The result has been the emergence of a new discipline, historical GIS. Despite the growing use of GIS across geography and history, the use of …
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Spatial and temporal patterns (1973-2012) of bushfire in an arid to semi-arid region of Western Australia
Aim and background The aim of this study was to reconstruct fire regimes/history of an extensive arid to semi-arid region of Western Australia for the last 40 years by studying temporal and spatial fire scar patterns using remote sensing in a Geographic Information System environment. Methods A …
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Spatial and temporal patterns exhibited by select physicochemical and biological water quality parameters in Lake Texoma, Oklahoma and Texas.
… March , April , July, August, September, and November and fortnightly in May and June for the purposes of establishing baseline conditions present in Lake Texoma as related to U.S. Army Corps of Engineers chloride control activities in the upper Wichita River, Texas. Five reservoir zones …
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Spatial and Temporal Patterns of Anadromous Fish Passage at Boshers Dam Vertical Slot Fishway on the James River, Richmond, Virginia
… James River, Virginia, U.S.A., opened in 1999 and restored connectivity to 543.3 km of spawning habitat for anadromous fish. The fishway also allowed local movement of resident species. Video observation from 2001-2005 was used to evaluate environmental predictors of American shad (Alosa …
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Spatial and Temporal Patterns of Genetic Variation in Scarlet Macaws: Implications for Population Management in La Selva Maya, Central America
Advances in technology and molecular methodologies now provide an unprecedented view into the complex realm of natural populations by elucidating the degree and distribution of genetic variation, historical and contemporary processes driving differentiation, and individual behavior patterns. These …
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A Hydropedological Approach to Describing Runoff Generation, Lateral Podzolization, and Spatial and Temporal Patterns of DOC in a Headwater Catchment
The variations in discharge and water chemistry among and within headwater catchments are not well understood. Developing a better understanding of the processes that control these variations is crucial to determining how headwater catchments will respond to changes in climate and land use. This …
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Investigations of water and tracer movement in covered and uncovered unsaturated waste rock
A better understanding of the hydrogeology of mine waste rock and cover systems is essential for the quantification, prediction and reduction of metals loading to the receiving environment. A series of experiments were conducted on an instrumented intermediate-scale waste rock pile at the Cluff …
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The relationship between periphyton, flow and nutrients in foothill rivers of the south-western Cape, South Africa
This thesis examines spatial and temporal patterns in periphyton community composition and biomass and the environmental factors responsible for shaping these communities in south-western Cape rivers. The study focused on two prennial foothill rivers in the south-western Cape: the Berg River, which …
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A New Orleans State of Crime: Spatio-Temporal Analysis of Shifting Homicide Patterns In Post-Hurricane Katrina New Orleans, LA
Dubbed the "most murderous" and "deadliest" city in the United States during 2006, 2007 and 2008, New Orleans has wrestled with crime and murder since its founding in 1718. Following Hurricane Katrina the city saw an increase in the murder rate despite a sharp decrease in population. The focus of …
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DEVELOPMENT OF INDIVIDUAL VARIABILITY IN FUNCTIONAL CONNECTIVITY AND ITS ASSOCIATIONS WITH COGNITION AND PSYCHOPATHOLOGY IN YOUTH
Cognitive ability and psychological risks are heterogeneous among adolescents. Individual differences in brain functional connectivity (FC) have been used for cognitive performance prediction and mental health risk calculation. However, the interindividual FC variability during adolescence is still …
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