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Dissertations / Theses on the topic 'Introduced species'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Cassey, Phillip. "Comparative Analyses of Successful Establishment Among Introduced Land Birds." Thesis, Griffith University, 2002. http://hdl.handle.net/10072/366398.

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Humankind has redistributed a large number of species outside their native geographic ranges. Although the majority of introduction attempts fail to establish populations, the cumulative negative effect of successful non-native species has been and will continue to be large. Historical records of land bird introductions provide one of the richest sources of data for testing hypotheses regarding the factors that affect the successful establishment of non-native populations. However, despite comprehensive summaries of global avian introductions dating back two decades only very recent studies ha

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2

Crowley, Sarah Louise. "Ecological politics and practices in introduced species management." Thesis, University of Exeter, 2017. http://hdl.handle.net/10871/28758.

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The surveillance and control of introduced species has become an increasingly important, yet often controversial, form of environmental management. I investigate why and how introduced species management is initiated; whether, why and how it is contested; and what relations and outcomes emerge ‘in practice’. I examine how introduced species management is being done in the United Kingdom through detailed social scientific analyses of the processes, practices, and disputes involved in a series of management case studies. First, I demonstrate how some established approaches to the design and deli

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3

Curtis, Tracy Renee. "Mechanisms facilitating the success of an invasive social wasp species in North America relative to a native species." Diss., Online access via UMI:, 2005. http://wwwlib.umi.com/dissertations/fullcit/3164710.

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4

Keplinger, Brandon J. "An experimental study of vertical habitat use and habitat shifts in single-species and mixed-species shoals of native and nonnative congeneric cyprinids." Morgantown, W. Va. : [West Virginia University Libraries], 2007. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=5163.

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5

Rabie, Paul A. "Demography and individual growth of two introduced Bromus species." Pullman, Wash. : Washington State University, 2010. http://www.dissertations.wsu.edu/Dissertations/Spring2010/p_rabie_021810.pdf.

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6

Nyafu, Kanyisa. "Warthog as an introduced species in the Eastern Cape." Thesis, Nelson Mandela Metropolitan University, 2009. http://hdl.handle.net/10948/1058.

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The introduced common warthog, Phacochoerus africanus, in the Eastern Cape is increasing rapidly both in numbers and distribution, despite attempts by landowners to reduce numbers and exclude warthogs. These control attempts are motivated by concerns over the impacts of warthogs, on vegetation, soil and other animal species. This expansion of warthog populations is paradoxical given that a species of warthog occurred historically in this part of the world, apparently at low densities and was wiped out in the mid-1800s. The question therefore arises as to why warthogs are able to overcome popul

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7

Fautley, Richard Guy. "The ecology and population genetics of introduced deer species." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/32693.

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Deer have been introduced outside their native ranges numerous times worldwide, causing significant economic and environmental impacts. The scale of problems caused by some introduced deer species is expected to increase, while others are relatively harmless and may be important for conservation as their numbers decline in native regions. This thesis examines the factors promoting invasion in non-native deer, and investigates the population genetics of two deer species introduced to Great Britain. Factors hypothesised to predict invasion success were tested using a comparative analysis of the

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8

Cassey, Phillip, and n/a. "Comparative Analyses of Successful Establishment Among Introduced Land Birds." Griffith University. Australian School of Environmental Studies, 2002. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20030915.094001.

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Humankind has redistributed a large number of species outside their native geographic ranges. Although the majority of introduction attempts fail to establish populations, the cumulative negative effect of successful non-native species has been and will continue to be large. Historical records of land bird introductions provide one of the richest sources of data for testing hypotheses regarding the factors that affect the successful establishment of non-native populations. However, despite comprehensive summaries of global avian introductions dating back two decades only very recent studies ha

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9

Buckwalter, Joseph Daniel. "Temporal trends in stream-fish distributions, and species traits as invasiveness drivers in New River (USA) tributaries." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/64773.

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Biological invasions represent both an urgent conservation problem and an opportunity to advance ecological theory. Development of pertinent research questions and proactive management strategies require knowledge of which introduced species are present and of spatiotemporal trends in the distribution of natives and invaders. In Chapter 2 we developed a quantitative framework to identify spreaders and decliners and estimate invasion chronologies based on a historical fish presence data set for upper and middle New River (UMNR) tributaries. Our framework accounts for spatiotemporal variability

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10

Gwinn, R. Nathan, and John L. Koprowski. "Differential response to fire by an introduced and an endemic species complicates endangered species conservation." ASSOC TERIOLOGICA ITALIANA, 2016. http://hdl.handle.net/10150/625219.

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Fire is a natural component of, and serves as a tool for, the restoration of forested ecosystems worldwide; however, disturbance due to fire also has been implicated in the proliferation of invasive species. How these fires affect occupancy and use of the forest by wildlife is of great concern, in particular, the differential response of non-native and native species. In the North American Southwest, prior to European settlement, frequent wildfires helped to maintain forest structure. We examined the effect of a large wildfire on an introduced population of the Abert's squirrel (Sciurus aberti

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11

Wittmann, Meike. "Stochastic models for the ecology and population genetics of introduced species." Diss., Ludwig-Maximilians-Universität München, 2014. http://nbn-resolving.de/urn:nbn:de:bvb:19-165117.

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The long-term success of an introduced population depends on the ecological conditions in its new environment, but is also influenced by stochasticity. This is particularly clear in the first stage of an invasion when the population is still small and either goes extinct quickly or establishes a self-sustaining population. Once established, some populations grow and spread spatially, with potential impacts on native communities and ecosystems. The role of stochasticity during these later invasion stages remains unclear. Furthermore, little is known about the population genetic and evolutionary

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12

Rogers, W. D. "The impact of introduced species of crayfish in the British Isles." Thesis, University of Nottingham, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.307746.

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13

Stroud, James T. "Using Introduced Species of Anolis Lizards to Test Adaptive Radiation Theory." FIU Digital Commons, 2018. https://digitalcommons.fiu.edu/etd/3695.

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Adaptive radiation – the proliferation of species from a single ancestor and diversification into many ecologically different forms – has long been heralded as an important process in the generation of phenotypic diversity. However, the early stages of adaptive radiation are notoriously elusive to observe and study. In this dissertation, I capitalize on communities of introduced non-native Anolis lizards as analogues of early stage adaptive radiations. In Chapter II, I begin by reviewing the concept of “ecological opportunity” – a classic hypothesis put forward as a potential key to understand

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14

Li, Yue. "Biodiversity in a Dynamic World: How Environmental Variability Influences Coexistence between Introduced and Native Species." Diss., The University of Arizona, 2015. http://hdl.handle.net/10150/604812.

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Understanding broad patterns of biodiversity requires developing a unified and rigorously tested theory that explains how species coexist despite the risk of competitive exclusion. Species interactions are fundamentally shaped by environmental variability. Recent theoretical development has predicted a set of general mechanisms that promote species coexistence under variable environments. Nevertheless, this theoretical framework has received limited empirical tests. Biological invasions offer excellent opportunities to empirically test coexistence mechanisms in communities in which the stabili

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15

Kataria, Mitesh. "Environmental valuation, ecosystem services and aquatic species /." Uppsala : Dept. of Economics, Swedish University of Agricultural Sciences, 2007. http://epsilon.slu.se/200765.pdf.

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16

Pen, Luke Jerome. "The biology of four species of native and two species of introduced fish in south-western Australia." Thesis, Pen, Luke Jerome (1990) The biology of four species of native and two species of introduced fish in south-western Australia. PhD thesis, Murdoch University, 1990. https://researchrepository.murdoch.edu.au/id/eprint/52017/.

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A seine net (3 mm mesh), and where necessary other methods, were used to collect three native species (Galaxias occidental is, Bostockia porosa and Edelia vittata) and two introduced species (Gambusia affinis and Perea fluviatilis) at regular intervals from the southern branch of the Collie River. The same net was used to sample the native species Galaxiella munda from a tributary of the Warren River 120 km further south in Western Australia. Annuli on otoliths and the seasonal trends shown by gonadal development, including changes in oocyte diameter, were used to determine the age and the dur

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17

Palmer, Geoffrey Hamilton. "Ecological Assessment of Red-Bellied Squirrels (Sciurus Aureogaster) Introduced to Elliott Key, Florida." Thesis, The University of Arizona, 2012. http://hdl.handle.net/10150/268533.

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Introduced species present one of the greatest threats to biodiversity of native species, and knowledge of introduced species ecology is imperative for the development of management plans to ensure conservation of native species populations. We sought to determine the distribution and nesting behavior of an introduced population of red-bellied squirrels (Sciurus aureogaster) on islands of the Florida Keys currently managed as part of Biscayne National Park, and document potential for the species to impact native flora and fauna. Squirrels were difficult to observe in the dense vegetation of

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18

Burbank, Nora K. "Have Introduced Brown Trout (Salmo Trutta) Affected Native Aquatic Vertebrates in Western United States Streams?" DigitalCommons@USU, 2011. https://digitalcommons.usu.edu/etd/1070.

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The introduction of exotic species is one of the greatest threats to freshwater biodiversity. Brown trout are native to Eurasia, but have been introduced to much of the rest of the world, including the United States. In other parts of their introduced range, brown trout have caused substantial negative effects to native species‟ abundances and distributions, and have altered the structure of some aquatic communities. In the United States, studies of some streams and watersheds have shown that brown trout can negatively affect native species, but I found no study that considers the effect of br

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19

Fraser, Elaine J. "An integrative approach to inform invasive species management : the case of American mink (Neovison vison) in West Scotland." Thesis, University of Aberdeen, 2013. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=206603.

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The detrimental impact of invasive, non-native species on biodiversity conservation and ecosystem function is widely recognised. The invasion of predatory species can have particularly deleterious consequences on native species in the invaded range and there is an increasing awareness of, and necessity for, management action to minimise these impacts. There is a growing body of literature identifying the impacts of invasive species and priorities for conservation action. However, there is a noticeable gap between the rising scientific output regarding invasive species control and conservation

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20

Silva, Cátia Sofia Velez. "Is it posssible for native and introduced Ruditapes species to live in sympatry?" Doctoral thesis, Universidade de Aveiro, 2017. http://hdl.handle.net/10773/22820.

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Doutoramento em Biologia<br>In marine ecosystems, organisms are exposed to a variety of stressors such as metal/metalloid contamination, climate change, and introduction or spread of invasive species. One of the most successful invasive species is the clam Ruditapes philippinarum but this species may also co-habit in coastal ecosystems with the native species (Ruditapes decussatus). Although some researchers have studied these species to assess environmental contamination, little information is available about both species from different ecosystems. In addition, the effects induced by contamin

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21

Ho, Chi-fai, and 何志輝. "Ecological risk assessment and management of invasive freshwater fish species from aquarium and ornamental trades in Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2013. http://hdl.handle.net/10722/194580.

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Since globalization have promoted the ornamental trade and accelerated the movement of freshwater fishes around the world, non-native species pose a high potential to be released into local freshwater habitats, and to spread and establish as invasive and nuisance species with adverse ecological, economic and social impacts. This study aimed to investigate the potential of the ornamental freshwater fish trade as an invasion pathway in Hong Kong, assess the ecological risk of common aquarium freshwater fish species being traded in the local market, identify species of concern and recommend ways

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22

Romagosa, Christina M. Guyer Craig. "United States commerce in live vertebrates patterns and contribution to biological invasions and homogenization /." Auburn, Ala, 2009. http://hdl.handle.net/10415/1711.

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23

Hassan, Ahdia. "Influence of biogeographic origin and phylogenetic relatedness on the impacts of introduced aquatic species." Thesis, McGill University, 2014. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=121225.

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Rates of species invasion are rising globally, particularly in freshwater ecosystems. The impacts of only a small fraction of these invasions have been studied, and some have been found to cause substantial ecological and socio-economic damage. Nevertheless, there have been recent claims that the impacts of non-native species have been exaggerated, that native species have an equal propensity to cause damage, and therefore the biogeographic origins of species should not be considered in management decisions. Here, I address these claims by comparing the socio-economic impacts of native and

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24

Reeve, I. D. "Aspects of the biology of an introduced and a native species of freshwater crayfish." Thesis, University of Nottingham, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.278531.

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25

Miranda, Paulo de Tarso de Castro. "Marine benthic macrofauna and introduced species in the port area of PecÃm, CearÃ, Brazil." Universidade Federal do CearÃ, 2013. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=11209.

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nÃo hÃ<br>In the present work we performed a study and characterization of benthic macrofauna of the intertidal fringe of PecÃm beach between the years 2006 and 2011 in order to obtain information about the taxonomic diversity of species and deepen knowledge about the ecology of these organisms in the face of new environmental conditions imposed by the deployment of Marine Terminal of Port of PecÃm. Seventy-one taxa belonging to seven taxonomic groups: Porifera, Cnidaria, Mollusca, Annelida (Polychaeta), Arthropoda (Crustacea), Echinodermata and Chordata were listed. Six species of marine ben

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26

Blaisdell, Gretchen Kai 1974. "Introduced plant species, herbivores and pathogens, and the host-enemy relationships that accompany invasions." Thesis, University of Oregon, 2011. http://hdl.handle.net/1794/11227.

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xvi, 109 p. : ill.<br>Invasions by introduced plant species cost billions of dollars each year in the United States and threaten native habitat. The primary goal of my dissertation research was to examine the role that natural enemies (pathogens and herbivores) play in these invasions in both unmanaged and restored plant communities. In two related studies in seasonal wetland prairies in the Willamette Valley, Oregon, USA, I surveyed natural enemy attack on common native and introduced plant species in a restoration experiment designed to test the effects of site preparation techniques on p

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27

Brown, Joshua Evan. "Genetic Portraits of Introduced Gobies and Mussels: Population Variation Delineates Invasion Pathways." University of Toledo / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1261147796.

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28

Wyatt, Kimberly M. "Rapid morphological divergence among subpopulations of the introduced common wall lizard, Podarcis muralis." University of Cincinnati / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1377874890.

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29

Ambrose, Laura G. "Seed persistence of an introduced and a native grass species in a prairie old field." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ45313.pdf.

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30

Pagès, Marie. "Partnerships between professionals and amateurs in nature conservation : an examination of motivations and discourses in the management of invasive non-native species." Thesis, University of Aberdeen, 2017. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=231663.

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Invasive Non-Native Species (INNS), or Invasive Alien Species, are organisms introduced by humans outside their natural range that have “negative impacts on biodiversity, socio-economy or human health”. Growing awareness of the ecological and socio-economic impacts of INNS has led to a mushrooming of control attempts across the UK. The costs of such environmental management has grown far in excess of the availability of funds to afford control by professionals and led to widespread involvement of volunteers in INNS management and monitoring. This thesis aimed to identify challenges in collabor

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31

Mella, Valentina S. A. "Physiological and behavioural responses of Australian and exotic prey to the scent of native and introduced predators." Thesis, Curtin University, 2009. http://hdl.handle.net/20.500.11937/350.

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This study examined the physiological and behavioural effects of a stress-inducing stimulus (predator odour) on potential prey species (Australian native and exotic). The aim was to determine if differences in the response of prey were related to the scent of evolutionary known predators compared to unfamiliar or short-term introduced ones. In laboratory experiments, responses were always restricted to changes in respiratory variables, with brushtail possums (Trichosurus vulpecula), rabbits (Oryctolagus cuniculus) and tammar wallabies (Macropus eugenii) showing no variation in metabolic rate a

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32

Lescano, Ninnia V. "Population Bottlenecks and Range Expansion in Podarcis muralis, a Wall Lizard Introduced from Italy." University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1275070519.

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33

Leyse, Karen Elizabeth. "Intentional introductions and biodiversity in fishless waters : the effects of introduced fish on native aquatic species /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2005. http://uclibs.org/PID/11984.

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34

Fluker, Marian Gay. "Growth response of select native and introduced plant species to soil nutrient levels and interspecific competition." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ34362.pdf.

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35

Wittmann, Meike [Verfasser], and Dirk [Akademischer Betreuer] Metzler. "Stochastic models for the ecology and population genetics of introduced species / Meike Wittmann. Betreuer: Dirk Metzler." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2014. http://d-nb.info/1047062380/34.

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36

Roberts, Anthony Paul. "Biological control of alien species (Prosopis) in South Africa : the role of introduced seed-feeding bruchids." Doctoral thesis, University of Cape Town, 2006. http://hdl.handle.net/11427/6173.

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Includes bibliographical references (p. 206-231).<br>The use of bruchid beetles for biologicval control of mesquite, Prosopsis species, in South Africa is deemed to have failed because the beetles are supposed to be unable to compete with livestock which utilise the seed pods of mesquite extensively as forage. These assumptions have been made without any evidence as to how the beetles and livestock interact or as to whether mesquite is site or seed limited in South Africa. This study was initiated to test the hypothesis that the beetles are not coping with competition with livestock and that

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37

Taylor, Sabrina S., and n/a. "The genetic and conservation consequences of species translocations in New Zealand saddlebacks and robins." University of Otago. Department of Zoology, 2006. http://adt.otago.ac.nz./public/adt-NZDU20070118.101358.

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Species translocations result in demographic bottlenecks that may produce inbreeding depression and reduce genetic variation through random sampling and drift, an outcome that could decrease long-term fitness and adaptive potential of many New Zealand species. Despite considerable evidence for costs associated with inbreeding and reduced genetic variation, some species have recovered from a small number of individuals and are thriving, perhaps via high growth rates, differential survival of heterozygous individuals or inbreeding avoidance. I examined the genetic consequences of species translo

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38

Pelech, William Edward. "Performance of selected native and introduced plant species under mowing and herbicide management during the establishment period." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq22652.pdf.

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39

Bee, J. N. "Diet selection by introduced red deer in New Zealand, and its impact on native forest plant species." Thesis, University of Cambridge, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.596517.

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New Zealand has no native mammalian herbivores, and the recent introduction of deer to the country is having a major impact on native vegetation. This thesis explores aspects of the foraging ecology of introduced deer and the responses of native plant species to browsing. In Chapter 1, I introduce the study system and the conceptual themes of the thesis, which run along two main axes. The first theme relates to the importance of traits of individuals (both plants and deer) versus landscape or community-level characteristics in determining diet selection. The second theme is concerned with two

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40

Belote, Russell Travis. "Diversity, Invasibility, and Stability of Appalachian Forests across an Experimental Disturbance Gradient." Diss., Virginia Tech, 2008. http://hdl.handle.net/10919/29020.

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For this dissertation, I measured how plant communities in Appalachian forests responded to disturbances caused by forest management activities. I had two primary objectives including (1) testing theories of biological diversity and invasions by nonnative species; and (2) providing empirical data that will help guide the sustainable use of forest resources. This work is part of the Southern Appalachian Silviculture and Biodiversity (SASAB) experiment that was established in the early 1990s to investigate ecosystem responses to a gradient of timber harvesting disturbances. Ranging from undistur

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Selge, Sebastian. "Public and scientific discourses on biological invasions : social representations of invasive non-native species in Scotland." Thesis, University of Aberdeen, 2011. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=183833.

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Invasive non-native species are believed to be one of the biggest threats to biodiversity. Until now biological invasions have been mainly studied from a biological perspective and much research has been undertaken to investigate species’ ecology and potential options for management. Comparatively little attention has been devoted to questions regarding the social construction of the issue. This is despite invasion biologists increasingly acknowledging the fundamental importance of human perceptions, beliefs, attitudes and values inherent in debates about invasive non-native species. This thes

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Sjöberg, Göran. "Nesting and migration in the introduced Canada goose in Sweden." Doctoral thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 1993. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-101357.

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The aim of the thesis was to document patterns in breeding and migration in Swedish Canada geese Branta canadensis, to explain these against the genetic and historical background of the population, and to test predictions of hypotheses pertaining to parental investment. The Canada goose population in Sweden was founded by the introduction of a few individuals in the 1930's. DNA fingerprint similarity between geese breeding in Sweden was on average at the same level as between inbred close relatives in other wild bird species. The genetic variability of the population appeared to be considerabl

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Howard, Simon William. "Effects of trout on galaxiid growth and antipredator behaviour." Thesis, University of Canterbury. Biological Sciences, 2007. http://hdl.handle.net/10092/1438.

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The introduction of trout has been implicated in the declines in native fish fauna in New Zealand and worldwide. Since the introduction of brown (Salmo trutta) and rainbow (Oncorhynchus mykiss) trout to New Zealand in 1867, their distribution has spread and they have been implicated in the fragmentation of native fish distributions, particularly native non-migratory galaxiids. However, in the Upper Waimakariri basin the co-occurrence of trout and galaxiid populations is relatively common, even in streams where trout reach sizes known to be piscivorous. To investigate mechanisms that may regula

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44

Lado, Thomas Francis. "Molecular ecology of introduced species in South Africa : the bud gall-forming wasp Trichilogaster acaciaelongifoliae and the Argentine ant Linepithema humile." Thesis, Stellenbosch : Stellenbsoch University, 2008. http://hdl.handle.net/10019.1/4840.

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Thesis (PhD)--Stellenbosch University, 2008.<br>ENGLISH ABSTRACT: Introduced species displace native species and alter ecological communities, affect agriculture as well as human health and are economically costly to eradicate. Long term monitoring of introduced species including the documentation of levels of genetic variation is therefore of the utmost importance. This study investigated the distribution of genetic variation in two introduced species distributed across South Africa the bud gall-forming wasp Trichilogaster acaciaelongifoliae and the Argentine ant Linepithema humile. The

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45

Casso, Carrasco Maria. "Genomic analysis of an introduced ascidian and implications for invasiveness." Doctoral thesis, Universitat de Barcelona, 2020. http://hdl.handle.net/10803/673998.

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Invasive species constitute a major threat to global biodiversity and cause important economic losses and ecological impacts. In the marine realm, ascidians include several aggressive invasive species, some of which have worldwide colonisation ranges, such as Didemnum vexillum. In this thesis, some biological and ecological characteristics implicated in the invasiveness of the species are assessed. First, we performed a 20 month monitoring to determine settlement and growth preferences of invasive ascidian species in the Ebro Delta aquaculture facility, including D. vexillum. Our results

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O'Brien, Charleen. "Ports, Prosperity, and Pests: Assessing the Threat of Aquatic Invasive Species Introduced by Maritime Shipping Activity in Cuba." NSUWorks, 2016. http://nsuworks.nova.edu/occ_stuetd/428.

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Aquatic invasive species (AIS) are biological pollutants that cause detrimental ecological, economic, and sociological effects on non-native communities. With increasing globalization through maritime trade, coastal ports are vulnerable to AIS introductions transported by commercial vessels. As Cuba’s Port Mariel becomes a competitive transshipment hub within the Caribbean, it is essential to identify the potential threat that AIS may pose with a likely increase in shipping activity. It is equally important to understand the status of established AIS in Cuba and control measures presently bein

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Bonesi, Laura. "Causes and consequences of the decline of an introduced species : the case of the American mink in England." Thesis, University of Oxford, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270245.

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48

Moon, Desiree L. "A Study of the Spatial Dynamics of some Introduced Avian Species in the Southwest Region of Western Australia." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2013. https://ro.ecu.edu.au/theses/690.

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The Southwest region of Western Australia is a recognised ‘biodiversity hotspot’, as it possesses high levels of biodiversity and endemism; it also holds a number of species threatened by habitat loss. The arrival of Europeans in the region wrought major changes on the natural landscape. Extensive tracts of bushland were cleared for housing, infrastructure, forestry, farming, and mining. Another challenge to regional biodiversity was the spread of exotic plants and animals (including birds); the latter provide the focus for the present study. The research examines four bird species that coloni

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Forget, Gabrielle. "A Meta-analysis of Evolutionary Responses in Native Plants to Introduced Plant Species: Does Phylogenetic Distance Play a Role?" Thesis, Université d'Ottawa / University of Ottawa, 2017. http://hdl.handle.net/10393/35773.

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Abstract:

While there is increasing interest in the evolutionary consequences of species invasions on native plant communities, the connection between the phylogenetic relatedness of invaders and natives, and its evolutionary consequences, has not yet received much attention. One way to examine the role of relatedness on the impact of species invasions is through the use of meta-analytical techniques combined with a phylogenetic framework. I apply this technique and expand on a prior meta-analysis by Oduor (2013), in order to compare how native plant species that either have prior experience coexisting

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50

Konečnỷ, Adam. "Consequences of anthropogenic changes on rodent communities and populations : study cases on native and introduced species in Eastern Senegal." Montpellier 2, 2009. http://www.theses.fr/2009MON20094.

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Les rongeurs de la savane soudanienne du Sénégal-Oriental ont été examinés en relation avec l'intensité des changements liés à l'homme. Un des moteurs principaux du changement global, l'usage des terres, a causé une augmentation significative des abondances de rongeurs dans les milieux cultivés par rapport aux savanes naturelles du Parc National du Niokolo-Koba. Ceci est du surtout à l'augmentation des effectifs de l'espèce ubiquiste Mastomys erythroleucus. Au niveau des populations, la fragmentation et la déforestation de la savanne boisée, potentiellement facilités par les changements climat

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