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Dissertations / Theses on the topic 'Geographical distribution'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Robertson, Mark Peter. "Predictive modelling of species' potential geographical distributions." Thesis, Rhodes University, 2003. http://hdl.handle.net/10962/d1007189.

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Models that are used for predicting species' potential distributions are important tools that have found applications in a number of areas of applied ecology. The majority of these models can be classified as correlative, as they rely on strong, often indirect, links between species distribution records and environmental predictor variables to make predictions. Correlative models are an alternative to more complex mechanistic models that attempt to simulate the mechanisms considered to underlie the observed correlations with environmental attributes. This study explores the influence of the ty

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Marques, Mariana Pimentel. "Geographical distribution of the amphibians and reptiles of Angola." Master's thesis, Universidade de Évora, 2015. http://hdl.handle.net/10174/13275.

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Angola is among the largest countries in Africa and due to its great geographical and climatic variety, presents a great diversity of biomes and habitats. However, is one of few biodiverse countries in Africa that remains highly incomplete in knowledge of vertebrate diversity. Data regarding the occurrence and geographical distribution of amphibians and reptiles in Angola are currently scattered across museum specimens housed in Natural History institutions and in a diversity of books and papers published since the second half of the nineteenth century, and there is no available distribution d

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3

Ho, Po-ki, and 何寶琪. "Epidemiology and geographical distribution of child abuse in Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2013. http://hdl.handle.net/10722/193568.

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Objectives: The objectives of this study are 1) To study the epidemiology and geographical distribution of child abuse in Hong Kong. 2) To study the district differences in co-morbidities of child abuse. Methods: Children under 19 years old with diagnostic codes for child abuse and child maltreatment from 1st January 2001 to 31st December 2010 were retrieved from Hospital Authority database. Demographics, hospital admission data and co-morbidities diagnosis were retrieved. The data were further analyzed according to districts of Hong Kong. Results: A total of 8055 episodes of child ab

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4

Soni, Monde. "Assessment of geographical based load forecast approach in distribution planning." Master's thesis, Faculty of Engineering and the Built Environment, 2018. http://hdl.handle.net/11427/30175.

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Prior to the year 2007, Eskom Distribution followed a method of load forecasting (now referred to as legacy method in this report) that was based on collecting customer applications, historical load trending, and relied on the planner’s knowledge of the area to a large extent. It was based in a conventional Microsoft Excel spreadsheet. On seeking to improve its load forecasting approach, the utility adopted a technique that was based on spatial forecasting. This new technique was called a geographical based load forecasting (GLF) technique which was performed by using a custom based tool, call

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5

Pidgeon, Leo Edward. "Habitat-based species-specific spatial prediction geographical distribution of Spiranthes diluvialis /." Thesis, Montana State University, 2005. http://etd.lib.montana.edu/etd/2005/pidgeon/PidgeonL0805.pdf.

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6

Manning, Jane Elizabeth. "Patterns of spatial variation : bacteria and tintinnids in the North Atlantic ocean." Thesis, Swansea University, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.678684.

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7

Sampson, Mark Robert. "Modelling the distribution and abundance of several demersal fish species on the Agulhas Bank, South Africa." Thesis, Rhodes University, 2002. http://hdl.handle.net/10962/d1006207.

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The Agulhas Bank supports a speciose fish community, many of which are commercially important. Despite substantial research being conducted on aspects of their biology spatial aspects of their distribution and abundance in relation to environment parameters has been ignored. This study, therefore, addressed aspects related to the distribution and abundance of representative species on the Agulhas Bank within a Geographic Information System (GIS). Four candidate species were chosen due to their importance either in numbers or unit mass to the South African demersal trawl fishery. The species al

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Scott, Lucy Elizabeth Powell. "The development of a geographic information systems based atlas of southern African freshwater fish, and its application to biogeographic analysis." Thesis, Rhodes University, 2000. http://hdl.handle.net/10962/d1005099.

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A Geographic Information Systems (GIS) atlas of southern African freshwater fish was developed for the SADC countries from natural history collection specimens, hydrological, topographical and climatological data. The primary purpose of the development of the atlas of freshwater fish was the construction of a practical framework to transform vast amounts of existing biological data for use in research and management of aquatic resources. The database of freshwater fish collection specimens that was incorporated into the atlas, was developed in association with ALCOM (Aquatic Resources Manageme

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9

Jarema, Stacey Isabelle. "The abundance and distribution of beavers (Castor canadensis) in Québec, Canada /." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=101145.

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The importance of spatial variation in abundance for the assessment of climate change impacts was examined using the North American beaver ( Castor canadensis) in Quebec as a model species. A preliminary characterization of the beavers' range edge improved the core-sampling bias and revealed that beavers are present at low densities, in shrubby riparian habitats as far north as the communities of Tasiujaq and Umiujaq. Spatial variation in beaver abundance across the province follows a roughly logistic pattern, with abundance peaking in southern Quebec, declining steeply around 49°N, and remain

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10

Doniol-Valcroze, Thomas. "Spatial distribution of rorqual whales in the Strait of Jacques Cartier, Gulf of St. Lawrence, Quebec, Canada." Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=33749.

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The spatial distribution of four species of rorqual whales was studied along the north shore of the Gulf of St. Lawrence during the months of June to October from 1989 to 2000. A research effort of 6511 hours at sea yielded 849 sightings of blue whales (Balaenoptera musculus), 5291 of finback whales (Balaenoptera physalus), 3822 of humpback whales (Megaptera novaeangliae) and 6489 of minke whales (Balaenoptera acutorostrata). Spatial and behavioural data were collected at sea using inflatable boats, and Global Positioning Systems (GPS) were used to obtain accurate positions. These data were pl

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11

Sondermayer, Silke. "Seasonal and geographical distribution of accidents on the way to school in Germany." Diss., lmu, 2010. http://nbn-resolving.de/urn:nbn:de:bvb:19-114244.

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12

Jabali, Fu'ad. "A study of the Companions of the Prophet, geographical distribution and political alignments." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0018/NQ55342.pdf.

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13

Jabali, Fuad. "A study of the Companions of the Prophet : geographical distribution and political alignments." Thesis, McGill University, 1999. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=36022.

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This dissertation deals with two aspects of the history of the Companions of the Prophet: the pattern of their geographical distribution and their political alignments---taking as its test case the Battle of S&dotbelow;iffin. Based on biographical dictionaries of the Companions written by selected Traditionists (i.e., Ibn Sa`d, Ibn `Abd al-Barr, Ibn al-Athir, al-Dhahabi and Ibn H&dotbelow;ajar), and on the Traditionist definition of what constitutes a Companion, an attempt will be made to identify on the one hand the Companions who settled in Iraq, Syria and Egypt, and on the other those Compa

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14

Selamolela, S. D. "A retrospective study on the geographical distribution of cholera in Limpopo Province, South Africa." Thesis, University of Limpopo, 2016. http://hdl.handle.net/10386/2420.

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Thesis (MPH.) -- University of Limpopo, 2016<br>Introduction: During mid-November 2008, eleven acute watery diarrhoea cases with the suspicion of cholera like symptoms were detected by a diarrhoea surveillance system at Musina Hospital in Vhembe district - Limpopo Province, South Africa. These cases included eight Zimbabwean and three South African citizens. Laboratory test performed on stool specimens confirmed Vibrio cholerae serogroup 01 Ogawa as the causative pathogen for these reported acute watery diarrhoea cases. Within eight weeks of its onset, the outbreak spread to all the five d

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Burger, Lynton Francois. "The distribution patterns and community structure of the Tsitsikamma rocky littoral ichthyofauna." Thesis, Rhodes University, 1991. http://hdl.handle.net/10962/d1005104.

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The results of a community survey of the rocky intertidal and subtidal reef ichthyofauna of the Tsitsikamma National Park and adjacent areas are presented. An updated species checklist is given, comprising 116 species of 46 families, including a new genus and species of Tripterygiid. Single species are shown to dominate, in terms of numbers, both the cryptic and subtidal components for all the areas sampled down the vertical profile. Species richness, evenness and diversity are found to increase with depth for both the cryptic and suprabenthic components. A community level feeding study shows

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Pascual, Fuster Bartolomé. "Three papers on geographical distribution of firms' real activity and structures in stock returns." Doctoral thesis, Universitat de les Illes Balears, 2000. http://hdl.handle.net/10803/9418.

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<b>TRES TRABAJOS SOBRE LA DISTRIBUCIÓN GEOGRÁFICA DE LA ACTIVIDAD REAL DE LAS EMPRESAS Y ESTRUCTURAS EN LA RENTABILIDAD DE SUS ACCIONES</b><br/><br/>La creciente integración internacional de los mercados financieros ha propiciado la realización de una serie de trabajos empíricos cuyo objeto es analizar los mecanismos a través de los cuales los movimientos de precios se transmiten de un mercado financiero a otro. Además, esos trabajos estudian las implicaciones de esa transmisión para la valoración de activos financieros, de cara a la aplicación de estrategias de cobertura y de inversión. Desde

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17

Borba, Laiza Meira de. "The Geographical Information System (GIS) as a strategy in logistics decisions of physical distribution." Universidade de Taubaté, 2011. http://www.bdtd.unitau.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=521.

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The concept of logistics, which until the mid-50 was limited to physical distribution - transport docks and warehouses due to its beginnings in the great empires and armies, has become much more complex and comprehensive. Nowadays it integrates processes involving the entire geographic scope, encompassing material flows, information and products from the point of origin (suppliers) to the point of consumption (client), among several companies throughout the supply chain. Thus, this chain management has become essential for survival, where the changes occur within a dynamic, unstable and evolvi

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Mendes, Bulhoes Carlos Andre. "Modelling of pollutant distribution in surface runoff in ungauged catchments using geographical information systems." Thesis, University of Bristol, 1994. http://hdl.handle.net/1983/85959bdf-08e2-466c-85a7-e4065cd659e7.

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The aim of this thesis has been to develop a water quality model, suitable for Brazilian conditions and that is capable of estimating the effects of future land use scenarios on water quality. The model is designed to be consistent with the availability of data in less developed countries and one of its major advantages is that the parameters involved are easily defined in terms of physical characteristics. A methodology is presented which has been designed specifically to support the determination of water quality changes resulting from point and non-point sources in a large river basin with

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Hedlund, Martin. "Growth and decline in rural Sweden : geographical distribution of employment and population 1960–2010." Doctoral thesis, Umeå universitet, Kulturgeografi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-139723.

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This thesis investigates the combination of changes in the population and employment into sectors in rural Sweden for the period 1960-2010. The aim is to describe and analyze the demographic changes together with the labour market changes, and to account for the spatial outcome of these changes by considering the heterogeneity of rural areas. The analysis departs from the framework of rural restructuring, where changes in employment and population in rural Sweden are interpreted as local products of the global processes of technological development, social modernization and globalization. Empi

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Leung, Ngo-hei, and 梁傲晞. "Spatial dispersion patterns of Planaxis sulcatus: patterns and consequences." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B48329502.

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Mobile, rocky shore species often exhibit distinct but dynamic spatial distribution patterns, such as the occupation of microhabitats and formation of aggregations. These patterns are likely to be influenced by the behavioural patterns of a species, their population dynamics and the consequent benefits of adopting particular patterns at certain times of the year. Using Planaxis sulcatus (Planaxidae) as a model species, this thesis documented spatial and temporal variation in the spatial patterns of this species, and attempted to identify the causes and consequences of these behaviours in the

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21

Farrell, Catherine M. "Territorial justice and the provision of nursery education in England and Wales, 1981-1994." Thesis, University of South Wales, 1996. https://pure.southwales.ac.uk/en/studentthesis/territorial-justice-and-the-provision-of-nursery-education-in-england-and-wales-19811994(95dcd9d4-4ac0-4a63-b4da-224b2406fe22).html.

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This study is concerned with the geographical distribution of the provision of nursery education in England and Wales from 1981 to 1994. It examines the extent to which the provision of nursery education is related to the need for the service. Davies's (1968) concept of territorial justice implies a positive correlation between need and provision. This interpretation of territorial justice is well established in the academic literature on the distribution of public services. Boyne and Powell (1991) have questioned whether a positive correlation between need and provision is always required for

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Claxton, Sandra Kaye. "The taxonomy and distribution of Australian terrestrial tardigrades." Australia : Macquarie University, 2004. http://hdl.handle.net/1959.14/84460.

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Thesis (PhD)--Macquarie University, Division of Environmental & Life Sciences, Dept. of Biological Sciences, 2004.<br>Bibliography: p. 599-618 (pt. 1).<br>Introduction -- Materials and methods -- Taxonomic studies -- Species descriptions and keys to genera and species -- Tardigrades from cryptograms and leaf litter on soil and from a sand island -- The distribution of terrestrial tardigrades in eastern Australia.<br>The terrestrial tardigrade fauna of Australia has been given scant attention in the past. This study was undertaken to collect and identify terrestrial tardigrade species from a wi

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23

Miranda, Hugo. "Gossip-Based Data Distribution in Mobile Ad Hoc Networks." Doctoral thesis, Department of Informatics, University of Lisbon, 2007. http://hdl.handle.net/10451/14290.

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Wireless networks are useful in many different scenarios. They allow to create emergency networks for catastrophe response, wide area surveillance networks in hostile environments, or simply permit users to share information, play on-line games, and surf the Web. Mobile ad hoc networks are a particular case of wireless networks characterised by the absence of a supporting infrastructure.The thesis addresses the problem of building middleware services that permit to fully exploit the opportunities offered by mobile ad hoc networks. For that purpose, it is required to design algorithms that acco

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Riseley, Kate L. "The Geographical Distribution of Crime Prevention Programs and the Characteristics of Communities that Attract Funding." Thesis, Griffith University, 2020. http://hdl.handle.net/10072/398877.

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This thesis investigated the distribution of community-based crime prevention programs across 223 suburbs in Brisbane, Australia. It aimed to problematise the implementation and funding of services and examine whether the number and type of programs implemented were related to crime rates, community capacity, community perceptions of collective efficacy or other community characteristics. The thesis addressed two research questions. First, what types of community-based crime prevention programs are most prevalent in the Brisbane Statistical Division? Secondly, how are resident demographic

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Borobia, Mônica. "Distribution and morphometrics of South American dolphins of the genus Sotalia." Thesis, McGill University, 1989. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=61865.

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Trinder, Mark Nicholas. "An investigation of matrix population model assumptions : wrens (Troglodytes troglodytes) as a case study." Thesis, University of Stirling, 2003. http://hdl.handle.net/1893/32.

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A simulation matrix population model of a small population of wrens (Troglodytes troglodytes) is presented. The field work methods used to obtain and analyse the demographic rates are provided. This includes a description of the use of miniature radio tags to track juvenile (post-fledging) survival and dispersal, and capture mark recapture analysis of an eight year dataset to estimate adult survival rates, taking into account environmental variation and density dependence. Age related reproductive rates were obtained from detailed nest surveys. Using these demographic rates (means and variance

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Armenteras, Dolors. "Modelling the potential distribution of tree species at the national scale using geographical information systems." Thesis, King's College London (University of London), 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.405762.

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Matsuda, Masahiko. "Taro, Colocasia esculenta(L.)Schott, in Eastern Asia : Its Geographical Distribution and Dispersal into Japan." Kyoto University, 2002. http://hdl.handle.net/2433/149925.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第9639号<br>農博第1267号<br>新制||農||846(附属図書館)<br>学位論文||H14||N3671(農学部図書室)<br>UT51-2002-G397<br>京都大学大学院農学研究科地域環境科学専攻<br>(主査)教授櫻谷哲夫, 教授大西近江, 教授矢澤進<br>学位規則第4条第1項該当

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Claska, Mary Elizabeth. "The distribution of zooplankton in selected Oregon lakes." PDXScholar, 1988. https://pdxscholar.library.pdx.edu/open_access_etds/3752.

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Zooplankton samples were collected from 166 Oregon lakes. The lakes included a wide range in size, trophic status, and water quality. Lakes were located throughout the state. Zooplankton were identified using standard taxonomic keys and counted. Seventy-four species were identified from the 200 total samples, including 32 species of cladocera, 22 copepods, and 11 rotifers. Two species of copepod were recorded for the first time in Oregon: Diaptomus mississippiensis and Diaptomus pallidus. Seven species had widespread distributions throughout most of the watersheds in the state. Seventeen other

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Hansen, Eric Allen, and n/a. "Distribution, movement, growth and individual behaviours of a drift feeding stream fish in relation to food supply." University of Otago. Department of Zoology, 2005. http://adt.otago.ac.nz./public/adt-NZDU20060728.142904.

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Individuals within a species often compete for resources in both space and time. In dominance hierarchies individuals with the greatest competitive ability will occupy prime locations during optimal periods to increase efficiency in gathering a resource. Subdominant individuals with low competitive abilities may be forced to reside in habitats of poor quality relative to dominant individuals. In this study I examined the long term patterns of giant kokopu distribution, movement, growth, habitat use, and social interaction between fish in relation to invertebrate drift (food supply). The habi

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Mellina, Eric. "Patterns in the distribution and abundance of zebra mussels (Dreissena polymorpha) in the St. Lawrence River in relation to substrate and other physico-chemical factors." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=69641.

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Using SCUBA and an in situ method of quantifying substrate characteristics, I describe patterns of zebra mussel (Dreissena polymorpha) distribution along the St. Lawrence and Hudson Rivers and in Oneida Lake, New York, and develop empirical models for their abundance. Calcium-poor waters originating from rivers draining the Canadian Shield resulted in a lack of zebra mussel along the north shore of the St. Lawrence River east of Montreal until Portneuf despite an abundance of suitable substrate. Calcium concentrations of 15 mg/L or less were found to limit the distribution of zebra mussel. The

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Ngure, Paulo Wilfred. "Patterns of wildlife exploitation in the Ugalla ecosystems of Western Tanzania." Thesis, University of Nottingham, 2012. http://eprints.nottingham.ac.uk/12564/.

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Unsustainable use of wildlife is a global conservation challenge. Understanding ecosystem specific patterns of wildlife exploitation is key to addressing this challenge. This thesis explores the nature of wildlife exploitation in and around Ugalla Game Reserve in western Tanzania. The reserve is divided into Ugalla east and Ugalla west tourist hunting blocks. First, I assessed the status of wildlife in the hunting blocks. Overall, estimates of wildlife population parameters suggested that Ugalla west was somewhat more exploited than Ugalla east. Second, I looked at the degree to which the hunt

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Rambau, Ramugondo Victor. "Molecular genetics of Rhabdomys subspecies boundaries : phylogeography of mitochondrial lineages and chromosomal fluorescence in situ hybridization." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/53504.

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Thesis (PhD)--University of Stellenbosch, 2003.<br>ENGLISH ABSTRACT: The geographic genetic population structure and evolutionary history of the African four-striped mouse, Rhabdomys pumilio, was investigated using mitochondrial (mtDNA) cytochrome b gene (1140 bp) and control region (994 bp) sequences and a combination of cytogenetic banding techniques (G- and C-banding), and fluorescence in situ hybridization. Two cytotypes (2n = 46 and 2n = 48) were identified by cytogenetic analysis. No evidence of diploid number variation within populations was found nor were there differences in gr

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McKeever, Lauren Joann. "Geographical variation in the genus Astarte (Phylum Mollusca: Class Bivalvia) from the Yorktown and Jackson Bluff formations (early Pliocene) of the Atlantic coastal plain." Thesis, Virginia Tech, 1985. http://hdl.handle.net/10919/43739.

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Geographical variation in taxa must be considered in evolutionary studies. The purpose of the present study is to demonstrate how geographical variation can be measured and documented for a taxon for one slice of time. Future evolutionary studies should document geographical variation for the entire geographical range of the species involved at several points of time throughout its total stratigraphic range. Thus the variation that is present at one time horizon may be separated from the variation that occurs through time. This work consists of a study of geographical variation in the genus As

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Thomas, William Buford. "THE DISTRIBUTION, BIOLOGY, AND MANAGEMENT OF THE INDIAN HOUSE CRICKET GRYLLODES SUPPLICANS (INSECT, PEST, URBAN, INTRODUCED, SOUTHWEST UNITED STATES)." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/275465.

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Carrizo, Savrina Flora. "Changes in the distribution and abundance of North American breeding birds." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.609961.

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Jones, Lisa A. 1976. "Influence of physico-chemical factors on the distribution and biomass of invasive mussels in the St. Lawrence River." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=82257.

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Biological invasions threaten the stability and biodiversity of freshwater ecosystems worldwide. The impacts of an invading species often vary across systems, making their prediction difficult. When data from multiple invaded sites are available, statistical models can be developed to correlate an invader's distribution and abundance with local environmental variables; such models could then provide managers with useful tools to help prioritize efforts to control the invader. The introduction of the zebra mussel (Dreissena polymorpha) and quagga mussel (D. bugensis) to North America ran

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Dalle, Sarah Paule. "The spatial distribution of traditional plant resources on an indigenous territory (Darien, Panama) and implications for management /." Thesis, McGill University, 2000. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=33389.

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Ecological research aimed at the conservation of useful plants has rarely considered the spatial distribution of resources nor the potential implications for management. In this thesis I examined the spatial patterning of a group of 23 useful plant species on the 3,500 ha territory of a Kuna community in Darien, Panama. A systematic random sampling scheme was used to survey the distribution and abundance of the species, as well as the physical environment. A series of canonical analyses was conducted to evaluate the species-environment relationships and to identify spatial structures in the sp

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Brehony, Carina. "The temporal and geographical distribution and diversity of disease-associated Neisseria meningitidis genetic types in Europe." Thesis, University of Oxford, 2010. http://ora.ox.ac.uk/objects/uuid:78a6afcc-4eb4-49fc-9d06-4cb36ddb8156.

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Meningococcal disease, caused by the bacterium Neisseria meningitidis, is an important cause of morbidity and mortality in young children and adolescents worldwide. There are 12 serogroups with most disease due to meningococci expressing one of five capsular polysaccharide antigens corresponding to serogroups A, B, C, Y and W135. In Europe, the majority of disease-causing strains are of serogroups B and C. No comprehensive vaccine is available against the bacterium due to the difficulty in producing serogroup B vaccines. A number of countries, e.g. UK and the Republic of Ireland have implement

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Hellström, Anna. "Uptake of airborne organic pollutants in pine needles : geographical and seasonal variation /." Uppsala : Dept. of Environmental Assassment, Swedish Univ. of Agricultural Sciences, 2003. http://epsilon.slu.se/a402.pdf.

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Weimann, Amy. "The use and disaggregation of survey data to study the cross-sectional and spatial distribution of multimorbidity and its association with socioeconomic disadvantage in South Africa." Master's thesis, University of Cape Town, 2016. http://hdl.handle.net/11427/22926.

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This study identified the need to provide a proof of concept of the use and disaggregation of existing health data in order to study the cross-sectional and spatial distribution of HIV, tuberculosis and noncommunicable disease multimorbidity and the association with socioeconomic disadvantage at a South African, Western Cape Province and urban/intra-urban scale for 2008 and 2012. This study was framed within a health geography context and draws attention to the reality of health variations which are influenced by place-based effects, including the surrounding social, cultural and economic stru

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Fraser, Ceridwen, and n/a. "Phylogeography of the kelp genus Durvillaea (Phaeophyceae: Fucales)." University of Otago. Department of Zoology, 2009. http://adt.otago.ac.nz./public/adt-NZDU20091002.131226.

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Durvillaea, a kelp genus occurring only in the Southern Hemisphere, presents an ideal system for studies of marine connectivity and postglacial recolonisation. Durvillaea contains five currently-recognised species, four of which are non-buoyant. Whereas all non-buoyant species are restricted to the south-western Pacific, the sole buoyant species (D. antarctica) has a far wider, circumpolar distribution, strongly suggesting that long-distance dispersal in D. antarctica is achieved by rafting. This contrast in predicted dispersal ability among Durvillaea species provides an opportunity for natur

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Golden, Joanne L., and University of Lethbridge Faculty of Arts and Science. "Chloroplast DNA diversity in Packera (asteraceae) : a phylogeographic study of Packera contermina and three related species from southwestern Alberta based on chloroplast DNA variation." Thesis, Lethbridge, Alta. : University of Lethbridge, Faculty of Arts and Science, 1999, 1999. http://hdl.handle.net/10133/100.

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Members of the genus Packera (Asteraceae) are widespread in North America, but most are found in western regions of the continent where extensive morphological integradation is common. Previous molecular systematic studies found that four species in southwestern Alberta, a region proposed to be at the interface of the Cordilleran and Laurentide ice sheets during the last advance of Pleistocene glaciation, showed unusually high levels of inter- and intrapopulational chloroplast DNA variation. The present study analyzed chloroplast haplotype phylogeny, frequency variation, and geographic distrib

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Richardson, Karen S. "Space use by vervet monkeys (Cercopithecus aethiops) and its consequences for the genetic structure of the Barbados population." Thesis, McGill University, 1990. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=59376.

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The distribution of vervets in Barbados was not uniform across the island, vervets being more abundant in parishes with high vegetative cover and low human population density. Ranging patterns for 4 troops of vervets in Barbados were shown to be influenced by the maximum daily temperature and the mean daily humidity. The frequency of use of an area decreased with increasing distance from the sleeping site, and the duration of use increased with increasing distance from the sleeping site. An interpopulation comparison of home range size and ranging patterns of vervet populations from Africa and

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Watson, James Edward Maxwell. "Bird responses to habitat fragmentation at different spatial scales : illustrations from Madagascan and Australian case studies." Thesis, University of Oxford, 2004. http://ora.ox.ac.uk/objects/uuid:abbeb257-d2b1-4c4a-bb87-195c51995e38.

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Despite increasing publicity, habitat loss and fragmentation remain a serious threat to biodiversity. The main objectives of this research were (i) to study the effects of forest fragmentation on the distribution and abundance of resident birds in the fragmented littoral forests of southeastern Madagascar and temperate woodlands of southeastern Australia at three spatial scales (patch, landscape and regional) and (ii) to place the results of these case studies within the realms of the equilibrium theory of island biogeography and its descendent theories, to ascertain whether it is appropriate

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Si, Yuefang [Verfasser]. "Outward FDI from China : Historical development, geographical distribution and the obstacles to subsidiary business success / Yuefang Si." Gießen : Universitätsbibliothek, 2013. http://d-nb.info/1065394772/34.

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Chapkowski, Andrew J. "Geographical distribution of pediobius foveolatus in New Jersey soybean fields to control the Mexican bean beetle population." Diss., Maryville, Mo. : Northwest Missouri State University, 2008. http://www.nwmissouri.edu/library/theses/ChapkowskiAndrew/index.htm.

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Thesis (M.S.)--Northwest Missouri State University, 2008.<br>The full text of the thesis is included in the pdf file. Title from title screen of full text.pdf file (viewed on July 25, 2008) Includes bibliographical references.

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Walker, Susan Frances. "Geographical patterns in the distribution of Batrachochytrium dendrobatidis and outbreaks of fatal chytridiomycosis in European amphibian populations." Thesis, Imperial College London, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.478915.

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Chandler, Sheri Kay. "The influence of perch tree distribution and abundance on bald eagle distribution on the northern Chesapeake Bay, Maryland." Thesis, This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-09122009-040456/.

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Ter, Morshuizen Leslie David. "Distribution patterns of fishes in the head region of a turbid Eastern Cape estuary." Thesis, Rhodes University, 1996. http://hdl.handle.net/10962/d1005105.

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Two and a half years of data were collected from the Great Fish River and estuary using seine nets and gill nets to determine the fish species composition within these regions. The head region of the Great Fish River estuary was found to have a rich fish fauna, with the euryhaline marine fish component totally dominating the catch in all three regions. Gilchristella aesiuaria was the single most common species and several euryhaline marine species were captured in freshwater for the first time. Physical parameters were also measured in an effort to ascertain the possible factors which may affe

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