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Dissertations / Theses on the topic 'Biological invasions'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Hirsch, Philipp E. "Phenotypic Processes Triggered by Biological Invasions." Doctoral thesis, Uppsala universitet, Limnologi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-158697.

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Individuals within a single population can vary widely in their phenotype e.g. in their body shape. These differences are an important source of biodiversity and they can precede evolutionary divergence within a population. In this thesis we use the biological invasion of the zebra mussels into Swedish lakes to investigate which processes create or maintain phenotypic diversity within populations of the two native fish species perch and roach and the mussel itself. Both fishes have specially adapted body shapes that depend on whether they feed in the near-shore or open-water habitat of lakes.

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2

Shucksmith, Richard. "Biological invasions : the role of biodiversity in determining community susceptibility to invasion." Thesis, University of Aberdeen, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.485655.

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Invasion by non-native species has the potential to change native biodiversity, community structure, food webs and interactions between species.. Small scale manipUlative experiments :using sessile organisms have shown that increasing biodiversity reduces community susceptibility to invasion by non-native species. However, large scale observational studies have shown that some ofthe most diverse systems are the most invaded. The search fora generalised mechanism that may make a resident community resistant to invasion by a non-native species has proven difficUlt and has provided contrasting re

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3

Rehage, Jennifer Schöpf. "Traits underlying invasiveness a comparison of widespread and endemic species in the genus gambusia (poeciliidae) /." Lexington, Ky. : [University of Kentucky Libraries], 2003. http://lib.uky.edu/ETD/ukybiol2003d000107/JSRdiss.pdf.

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Thesis (Ph. D.)--University of Kentucky, 2003.<br>Title from document title page (viewed June 1, 2004). Document formatted into pages; contains x,143 : ill. Includes abstract and vita. Includes bibliographical references (p. 125-141).

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4

Dreiwi, Hanan Ali. "Using transfer function analysis in modelling biological invasions." Thesis, University of Exeter, 2012. http://hdl.handle.net/10036/3749.

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This thesis is made up of seven chapters and two appendices. Chapter 1 provides an introduction whilst Chapter 7 o ers a conclusion. In Chapter 2 we provide preliminaries on population projection models and robustness analysis. In Chapter 3 we introduce a stage-structured model in a context of biological invasions. Using a Transfer Function Approach, we provide a detailed analysis of the invasion model where the existence and local stability of all possible equilibria are characterised in terms of the underlying parameters of the model. In Chapter 4, a Lyapunov function approach is used to est

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5

Law, Hang-heung Sharon. "Invasive species : what can Hong Kong do? /." View the Table of Contents & Abstract, 2006. http://sunzi.lib.hku.hk/hkuto/record/B37121005.

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6

Jankovic, Masha. "Modelling biological invasions : population cycles, waves and time delays." Thesis, University of Leicester, 2015. http://hdl.handle.net/2381/31392.

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Biological invasions are rapidly gaining importance due to the ever-increasing number of introduced species. Alongside the plenitude of empirical data on invasive species there exists an equally broad range of mathematical models that might be of use in understanding biological invasions. This thesis aims to address several issues related to modelling invasive species and provide insight into their dynamics. Part I (Chapter 2) documents a case study of the gypsy moth, Lymantria dispar, invasion in the US. We propose an alternative hypothesis to explain the patchiness of gypsy moth spread entai

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7

Harris, Kyle Robert. "Arthropod assemblages in a savanna invaded by Opuntia stricta (Cactaceae) in the Kruger National Park, South Africa." Pretoria : [s.n.], 2009. http://upetd.up.ac/thesis/available/etd-11292009-211107.

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8

Gichohi, Nathan W. "Ecological impacts of biological invasions on native birds in Africa." Master's thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/4747.

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The impacts of biological invasions on native avian diversity have been the subject of many studies in Africa. However, a holistic synthesis of available information from different taxa and their impacts on native birds is lacking. From published information, I analysed the negative and positive effects of biological invaders on native African birds from five taxa: plants, invertebrates, fish, mammals and birds. In order to assess functional gains and losses, native birds were categorized into their functional guilds defined by their primary diet. I limited my scope to mainland Africa at the b

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9

Ruland, Florian [Verfasser]. "The Role of Behavioural Changes in Biological Invasions / Florian Ruland." Berlin : Freie Universität Berlin, 2020. http://d-nb.info/1212031970/34.

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10

Siesa, M. E. "FRESHWATER COMMUNITIES AND BIOLOGICAL INVASIONS: ODONATA, AMPHIBIA AND PROCAMBARUS CLARKII." Doctoral thesis, Università degli Studi di Milano, 2011. http://hdl.handle.net/2434/154018.

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This research work analyses processes and dynamics occurring during the early stages of a biological invasion in freshwater habitats. I analysed processes determining the Procambarus clarkii invasion and the impact on native amphibians and odonates that have complex life cycles, I surveyed 148 among temporary and permanent wetlands of running and standing waters in a region that is at the edge of the invasion range of P. clarkii, I performed repeated sampling sessions in each wetland obtaining both qualitative and quantitative data on freshwater communities, I characterized each wetland using

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11

Gilbert, Mark. "Modelling species invasions in heterogeneous landscapes." Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:944d15d3-257a-47e5-acb9-9bdfba26985b.

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Biological invasions are devastating ecosystems and economies world-wide, while many native species' survival depends on their ability to track climate change. Characterising the spread of biological populations is therefore of utmost importance, and can be studied with spatially explicit, discrete-time integro-difference equations (IDEs), which reflect numerous species' processes of demography and dispersal. While spatial variation has often been ignored when implementing IDE models, real landscapes are rarely spatially uniform and environmental variation is crucial in determining biological

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12

Riley, Leslie Anne. "Estimating invasive species impact interaction strengths, abundance and the role of productivity in a freshwater invasion /." Pullman, Wash. : Washington State University, 2008. http://www.dissertations.wsu.edu/Dissertations/Fall2008/l_riley_111808.pdf.

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13

Tavares, Joana Flor R. "Assessing the importance of biological uncertainties to the control of species introductions via ballast water /." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 90 p, 2009. http://proquest.umi.com/pqdweb?did=1654487631&sid=3&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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14

Dudei, Nicole L. "The impact of the Richmondian Invasion on paleobiogeographic distribution of taxa in the Late Ordovician C₄ sequence (Richmondian Stage, Cincinnati, Ohio) including a comparison of range reconstruction methods." Ohio : Ohio University, 2009. http://www.ohiolink.edu/etd/view.cgi?ohiou1245437297.

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15

Janse, van Vuuren Adriaan. "Niche occupation in biological species competition /." Link to the online version, 2008. http://hdl.handle.net/10019/753.

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16

Pujol, Buxó Eudald. "Biological invasions: a temporal, spatial and plastic point of view: the case of Discoglossus pictus in Europe = Invasions biològiques: un punt de vista temporal, espaial i plàstic : el cas de Discoglossus pictus a Europa." Doctoral thesis, Universitat de Barcelona, 2017. http://hdl.handle.net/10803/456898.

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The rates at which allochthonous species are introduced and become invasive worldwide are unprecedented and accordingly, the number of studies on invasion biology have increased during the past years. However, biological invasions are still seemingly underused as natural laboratories to test essential biological theory. In this sense, the nine studies – ordered in three parts, which function as thematic blocks – presented in this thesis try to globally give an evolutionary – apart from ecologic – point of view on the ongoing invasion of the Mediterranean Painted Frog (Discoglossus pictus) in E

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17

Suarez, Andrew. "Causes and consequences of biological invasions : the Argentine ant in Southern California /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2000. http://wwwlib.umi.com/cr/ucsd/fullcit?p9984813.

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18

Jaeger, Andrea L. "Invasive species impacts on ecosystem structure and function." Diss., Connect to online resource - MSU authorized users, 2006.

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19

Law, Hang-heung Sharon, and 羅行香. "Invasive species: what can Hong Kong do?" Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2006. http://hub.hku.hk/bib/B45013524.

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20

Zellmer, Patricia J. "The identification and characterization of Caecidotea racovitzai (Isopoda) as the ecologically important second intermediate host of the invasive trematode Leyogonimus polyoon (Trematoda), and aspects of the natural history of each on Shawano Lake, Wisconsin /." Link to full text, 2009. http://epapers.uwsp.edu/thesis/2009/Zellmer.pdf.

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Thesis (M.S.)--University of Wisconsin--Stevens Point, 2009.<br>Submitted in partial fulfillment of the requirements of the degree Master of Science in Natural Resources (Wildlife), College of Natural Resources. Includes bibliographical references (leaves 167-174).

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21

Mu, Huawei. "Mechanisms of species invasion in apple snails: proteome of the egg perivitelline fluid, and proteomic responses of the adults to abiotic stressors." HKBU Institutional Repository, 2016. https://repository.hkbu.edu.hk/etd_oa/329.

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The Pomacea apple snails are amphibious operculate freshwater gastropods. They exhibit different stress tolerant abilities as some of them are invasive (e.g., Pomacea maculata and Pomacea canaliculata) and others are non-invasive species (e.g., Pomacea diffusa). By using a comparative approach, I have profiled the perivitelline fluid of P. maculata, compared the physiological and proteomic responses of P. canaliculata and P. diffusa to thermal and hypoxic stressors, and examined their sequence divergences. 74 proteins were identified from the PVF of P. maculata. Comparison of gene expression l

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22

Vall-llosera, Camps Miquel. "Avian invasions: from basic to applied research." Doctoral thesis, Universitat Autònoma de Barcelona, 2012. http://hdl.handle.net/10803/96891.

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La preocupació pels greus problemes ambientals i econòmics causats per les invasions biològiques ha provocat un enorme interès en tractar de comprendre els factors que influeixen en el procés invasiu. Aquesta informació és essencial per prevenir, avaluar i mitigar els impactes de les espècies invasores. En aquest context, aquesta tesi té dos objectius principals. El primer és descobrir què fa que una espècie tingui èxit en la invasió, i el segon investigar si aquests descobriments poden ser útils per prevenir els impactes dels invasors. Aquesta tesi explora aquestes qüestions utilitzant les au

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23

Berman, Jody 1962. "The ecology of biological invasions: interactions between native and introduced salt marsh gastropods." Thesis, University of Oregon, 1989. http://hdl.handle.net/1794/8938.

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Berry, Katharine M. "The role of parasites in the invasion ecology of Harmonia axyridis." Thesis, University of Stirling, 2017. http://hdl.handle.net/1893/27336.

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The success of an invasive alien species is often attributed to the ecological advantage gained from natural enemy release. Numerous factors have been suggested as contributing to the success of Harmonia axyridis as an invasive alien species, including enemy release. This thesis studied the interactions of several parasites with H. axyridis, investigating parasite transmission, growth and virulence as well as host immune responses, thereby shedding light on the potential role of enemy release in the invasion biology of this ladybird. Benefits gained by invasive alien species from enemy release

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25

Rehage, Jennifer Schopf. "TRAITS UNDERLYING INVASIVENESS: A COMPARISON OF WIDESPREAD AND ENDEMIC SPECIES IN THE GENUS GAMBUSIA (POECILIIDAE)." UKnowledge, 2003. http://uknowledge.uky.edu/gradschool_diss/262.

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Due to the irreversible nature of biological invasions, prediction has been a key area of emphasis in invasion biology. Specifically, the degree to which species-specific traits may help us predict invasion success is a core issue in the field. My research examined a series of traits and asked whether they were good predictors of invasion success, particularly establishment success. I compared traits among four species of the poeciliid fish Gambusia, two of them highly invasive (G. affinis and G. holbrooki) and two of them non-invasive (G. hispaniolae and G. geiseri).I examined abiotic toleran

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26

Richardson, David Mark. "The ecology of invasions by Pinus (pinaceae) and Hakea (proteaceae) species, with special emphasis on patterns, processes and consequences of invasion in mountain fynbos of the southwestern Cape Province, South Africa." Doctoral thesis, University of Cape Town, 1989. http://hdl.handle.net/11427/18803.

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The fire-prone mountain fynbos of the southwestern Cape Province of South Africa has been severely invaded by introduced trees and shrubs. These invasions have transformed fynbos shrublands to dense thickets of trees and shrubs in many parts of the region, thus disrupting various natural ecosystem processes. The ecology of invasions by species of Pinus and Hakea (the most successful genera) was studied using a series of natural experiments in conjunction with autecological studies. The study was divided into main four parts: (i) case studies to elucidate major patterns and processes of invasio

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27

Barrios-O'Neill, Daniel. "Consumer-resource interactions and biological invasions : insights from an invasive Ponto-Caspian study system." Thesis, Queen's University Belfast, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.680885.

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This study attempts to understand some aspects of ecological invasions from the perspective of consumer-resource interactions. Two successful Ponto-Caspian invaders of Irish lacustrine habitats, Hemimysis anomala and Chelicorophium curvispinum, are considered here. I establish that the invasive H. anomala has a higher per capita functional response towards cladoceran prey than does a native analogue, Mysis salemaai, whether consumption occurs alone, in conspecific groups, or in conspecific groups in the presence of a higher fish predator. In addition, the presence of this higher predator reduc

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28

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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29

Hewitt, Chad LeRoy. "Marine biological invasions : the distributional ecology and interactions between native and introduced encrusting organisms." Thesis, Thesis (Ph. D.)--University of Oregon, 1993, 1993. http://hdl.handle.net/1794/9974.

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30

Banks, Christopher Mark. "New Zealand Calanoid Copepod Invasions: Has Artificial Lake Construction Facilitated Invasions, and are our Coastal Waters Uninvaded?" The University of Waikato, 2007. http://hdl.handle.net/10289/2269.

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Non-indigenous species have become a global issue of increasing importance in recent years, with many causing significant environmental and economic damage. Identifying locations vulnerable to invasion allows for focus of management efforts towards prevention of invasions at those locations. In order to determine whether constructed water bodies, such as reservoirs, ornamental lakes or retired mines, are more easily invaded environments than natural water bodies, owing to decreased biotic resistance, the distributions of native and non-indigenous freshwater calanoid copepod species in the Nort

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Ndwayana, Hamilton Ncedo. "A sustainable development approach in the control of alien invasion vegetation." Thesis, Nelson Mandela Metropolitan University, 2012. http://hdl.handle.net/10948/d1020803.

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Invasive alien tree species have negative environmental and economic impacts throughout the world. For example, black wattle (Acacia mearnsii) threatens native habitats by competing with and so repressing or excluding indigenous vegetation: in this way it replaces grass communities, reduces biodiversity, and increases water loss from riparian zones, thereby fundamentally damaging the ecosystem. The Acacia mearnsii threat requires urgent attention: effective control and management is urgently required if these deleterious impacts are to be reversed or prevented. The present study was conducted

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32

Nunes, Pedro Mourato Catela. "Honeydew producers in eucalypts and associated native fauna." Master's thesis, ISA/UL, 2017. http://hdl.handle.net/10400.5/13884.

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Mestrado em Gestão e Conservação de Recursos Naturais - Instituto Superior de Agronomia - UL / Universidade de Évora<br>In recent years there has been an increase in the number of introduced eucalypt-feeding invasive species in worldwide plantations outside Australia. A large portion of these are honeydew producing sap-suckers, mostly psyllids (Hemiptera: Psylloidea). Besides the negative impact on eucalypt production, these non-native honeydew producers may have ecological effects on local native fauna by establishing new interactions. In this work, we intended to study these new interactions

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Croskey, Audra K. "Evaluating the costs of the emerald ash borer invasion in Ohio /." Connect to full text in OhioLINK ETD Center, 2009. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=toledo1257893435.

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Thesis (M.S.)--University of Toledo, 2009.<br>Typescript. "Submitted as partial fulfillment of the requirements for The Master of Science Degree in Biology (Ecology track)." "A thesis entitled"--at head of title. Bibliography: leaves 38-46.

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Fournier, Alice. "Modéliser et prédire les invasions biologiques." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS144/document.

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Les invasions biologiques, deuxième cause de perte de biodiversité à l’échelle mondiale, représentent un risque majeur auquel nos sociétés doivent faire face. On parle d’invasion biologique lorsque des activités humaines permettent à une espèce de franchir des barrières qui jusqu’alors limitaient sa dispersion ou sa multiplication, entrainant une explosion géographique et démographique de l’espèce dans un nouvel écosystème et s’accompagnant éventuellement d’impacts économiques, sociétaux ou écologiques. La façon la plus efficace et la moins coûteuse de limiter les impacts causés par les espèce

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35

Tayeh, Ashraf. "De la lutte biologique à l’invasion : la coccinelle Harmonia axyridis comme espèce modèle." Electronic Thesis or Diss., Montpellier, SupAgro, 2013. http://www.theses.fr/2013NSAM0038.

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La lutte biologique est souvent présentée comme une méthode de lutte contre les ravageurs respectueuse de l'environnement, même si la lutte par acclimatation (introduction d'une espèce exotique) peut être à l'origine d'invasion biologique. La coccinelle asiatique Harmonia axyridis Pallas (Coleoptera : Coccinellidae) a été utilisée comme agent de lutte biologique introduit en Amérique et en Europe pour lutter contre les pucerons. Actuellement, cette espèce est considérée comme envahissante, et a des impacts négatifs sur l'environnement. L'objectif principal de cette thèse est d'améliorer notre

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36

Hollebone, Amanda L. "An Invasive Crab in the South Atlantic Bight: Friend or Foe?" Diss., Connect to this title online, 2006. http://etd.gatech.edu/theses/available/etd-04092006-121221/.

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Thesis (Ph. D.)--Georgia Institute of Technology, 2006.<br>Title from PDF t.p. (viewed on Apr. 12, 2007). Streelman, J. Todd, Committee Member ; Miller, Margaret, Committee Member ; Weissburg, Marc, Committee Member ; Snell, Terry, Committee Member ; Hay, Mark, Committee Chair. Includes bibliographical references (p. 104-113).

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37

Crider, Kimberly Kay. "BIOLOGICAL CONTROL: EFFECTS OF TYRIA JACOBAEAE ON THE POPULATION DYNAMICS OF SENECIO JACOBAEA IN NORTHWEST MONTANA." The University of Montana, 2010. http://etd.lib.umt.edu/theses/available/etd-03092010-140634/.

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<p>Biological control, using introduced, specialist insects is a common strategy for controlling plant invasions. However, the efficacy of biological control agents in controlling their host plants is rarely quantified population level. I quantified the impact of a specialist biological control agent, the cinnabar moth <i>(Tyria jacobaeae)</i> on its host plant, tansy ragwort <i>(Senecio jacobaea)</i> in northwest Montana. Cinnabar moth damage and its effects on important plant vital rates were tested with and without specialist herbivores. The presence of moth larvae corresponded to a reducti

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38

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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39

McClees, Whitney Elizabeth. "Anthropogenic Effects on the Fouling Community: Impacts of Biological Invasions and Anthropogenic Structures on Community Structure." PDXScholar, 2017. https://pdxscholar.library.pdx.edu/open_access_etds/3883.

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Coastal anthropogenic infrastructure has significantly modified nearshore environments. Because these structures often have a strong association with shipping as would be found in ports and harbors, they have been identified as invasion hotspots. Due to propagule pressure from shipping and recreational boating and suitable uncolonized substrate that provides a refuge from native predators, a greater number of non-native species have been found on these structures compared to nearby natural substrate. The mechanisms that limit the spread of non-native species from anthropogenic structures to na

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Ma, Wai-lung, and 馬惠龍. "The role of stress tolerance on marine invasive mussels." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2013. http://hdl.handle.net/10722/196040.

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Marine bioinvasion has been increasing exponentially due to intensive human activities. To manage the threats posed by marine bioinvasion, it is important to understand the key factors for invasion success. Stress tolerance is thought to play an important role in the invasion process, however, little is known of the nature of this tolerance, particularly whether stress tolerance is species- or population-specific. To determine this, laboratory experiments were conducted to investigate differential tolerance of populations of a cosmopolitan marine invasive mussel, Perna viridis, and whether str

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Ramakrishnan, Alisa Paulsen. "Genetic patterns of dispersal and colonization during initial invasion and spread of an invasive grass, Brachypodium sylvaticum." PDXScholar, 2010. https://pdxscholar.library.pdx.edu/open_access_etds/355.

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Evolution of genotypes during range expansion is driven in part by colonization dynamics. I investigated genetic patterns of colonization and dispersal during initial expansion of an invasive bunchgrass, Brachypodium sylvaticum, into Oregon. Using microsatellite markers, I sampled plants at two different scales: at regular intervals along three parallel roads spanning about 30km, and in populations identified throughout Oregon. I also collected field-generated progeny from a subset of populations and used molecular identification of outcrossing events to estimate selfing rates in both central

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42

Simon, Andrea. "Genetic factors affecting establishment during invasions : the introduction of the topmouth gudgeon (Pseudorasbora parva) and the rainbow trout (Oncorhynchus mykiss) in Europe." Thesis, University of Hull, 2012. http://hydra.hull.ac.uk/resources/hull:6254.

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The study of biological invasions is a major research topic, both because of the ecological and economical damage caused by invasive species and also as a great natural experiment to study evolutionary responses of non-native populations to their new environment, and the factors influencing invasions. Introduced species often evolve rapidly, despite the assumed loss of genetic variation associated with bottlenecks during the invasion process. In order examine the processes and mechanisms affecting the outcome invasions I studied two non-native fish species, the topmouth gudgeon (Pseudorasbora

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Janse, Van Vuuren Adriaan. "Niche Occupation in Biological Species Competition." Thesis, Stellenbosch : University of Stellenbosch, 2008. http://hdl.handle.net/10019.1/2932.

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Thesis (MSc (Logistics))--University of Stellenbosch, 2008.<br>The primary question considered in this study is whether a small population of a biological species introduced into a resource-heterogeneous environment, where it competes for these resources with an already established native species, will be able to invade successfully. A two-component autonomous system of reaction-diffusion equations with spatially inhomogeneous Lotka-Volterra competitive reaction terms and diffusion coefficients is derived as the governing equations of the competitive scenario. The model parameters for wh

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Musseau, Camille. "Variabilité trophique chez la truite marbrée (Salmo marmoratus) : déterminismes ontogénétiques et environnementaux." Thesis, Toulouse 3, 2015. http://www.theses.fr/2015TOU30370/document.

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La variabilité au sein des populations naturelles est un facteur primordial de maintien de la diversité fonctionnelle dans les communautés et les écosystèmes. Présente dans une aire géographique restreinte, la truite marbrée (Salmo marmoratus) est une espèce aujourd'hui menacée par les effets du changement climatique (augmentation de la fréquence et de l'intensité des crues) et par les invasions biologiques. Seules quelques populations persistent dans le bassin adriatique. Les objectifs de cette thèse sont de quantifier la variabilité trophique de cette espèce dans des populations naturelles d

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Fletcher, David. "Biological invasion risk assessment, considering adaptation at multiple scales : the case of topmouth gudgeon Pseudorasbora parva." Thesis, Montpellier, 2018. http://www.theses.fr/2018MONTG029/document.

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Afin de quantifier les risques d’invasion chez le goujon Asiatique Pseudorasbora parva, un petit cyprinidae d’eau douce, j’ai tout d’abord testé une approche corrélative de modélisation de la niche climatique dans laquelle j’ai intégré un proxy relatif à la probabilité d’introduction. Cette approche s’appuie sur des assomptions relatives à l’adaptation des organismes aux conditions environnementales locales ou régionales. J’ai ensuite comparé la niche climatique mesurée de deux lignées génétiques majeures à la fois dans les aires natives et envahies. Puis dans un second temps, par une approche

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Jourdan, Jonas Verfasser], Martin [Gutachter] Plath, and Jörg [Gutachter] [Oehlmann. "Role of abiotic factors and biotic interactions in biological invasions : a comparison of natural and human-induced invasions in freshwater ecosystems / Jonas Jourdan ; Gutachter: Martin Plath, Jörg Oehlmann." Frankfurt am Main : Universitätsbibliothek Johann Christian Senckenberg, 2016. http://d-nb.info/1122193696/34.

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Tayeh, Ashraf. "De la lutte biologique à l’invasion : la coccinelle Harmonia axyridis comme espèce modèle." Thesis, Montpellier, SupAgro, 2013. http://www.theses.fr/2013NSAM0038/document.

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La lutte biologique est souvent présentée comme une méthode de lutte contre les ravageurs respectueuse de l'environnement, même si la lutte par acclimatation (introduction d'une espèce exotique) peut être à l'origine d'invasion biologique. La coccinelle asiatique Harmonia axyridis Pallas (Coleoptera : Coccinellidae) a été utilisée comme agent de lutte biologique introduit en Amérique et en Europe pour lutter contre les pucerons. Actuellement, cette espèce est considérée comme envahissante, et a des impacts négatifs sur l'environnement. L'objectif principal de cette thèse est d'améliorer notre

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Cordonnier, Marion. "Impacts of global changes on biological invasions and interspecific hybridization within the Tetramorium caespitum ant species complex." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSE1243/document.

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Changement climatique, urbanisation, invasions biologiques et hybridation interspécifique constituent des menaces majeures pour la biodiversité. L'objectif de cette thèse a été d'évaluer leurs effets interactifs sur les fourmis du genre Tetramorium de la vallée du Rhône, France. Près de 2000 colonies de 5 espèces de Tetramorium ont été étudiées. Les résultats démontrent que le climat et l'urbanisation limitent leurs aires de répartition et que l'urbanisation impacte leurs distributions simultanément à plusieurs échelles spatiales. Les probabilités d'occurrence de T. immigrans dépendent de l'in

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Golivets, Marina. "Uncovering the Drivers of Non-Native Plant Invasions Using Ecological Data Synthesis." ScholarWorks @ UVM, 2019. https://scholarworks.uvm.edu/graddis/1025.

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Understanding what promotes invasiveness of species outside their native range and predicting which ecosystems and under which conditions will be invaded is an ultimate goal of the field of invasion ecology. Obtaining general answers to these questions requires synthesis of extensive yet heterogeneous empirical evidence, coupled with a solid theoretical background. In this dissertation, I sought to provide insight into the drivers of non-native plant invasions through combining and synthesizing ecological data from various sources using advanced statistical techniques. The results of this work

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Kadye, Wilbert Takawira. "Assessing the impacts of invasive non-native African sharptooth catfish Clarias Gariepinus." Thesis, Rhodes University, 2012. http://hdl.handle.net/10962/d1005070.

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Invasive species are of particular concern as they have the potential to alter community structure and food web relationships within their invaded habitats. African sharptooth catfish Clarias gariepinus, a generalist predator, was introduced through an inter-basin water transfer scheme into the Great Fish and Sundays Rivers, Eastern Cape, South Africa, where it threatens the native riverine biota. This thesis assessed its impact from a trophic perspective. Patterns in catfish distribution and abundance revealed an upstream to downstream gradient that was associated with spatial distribution of

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