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    Browsing POST-DOCTORAL RESEARCH OUTPUTS by Title

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    Now showing items 113-132 of 214

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      • Landscape corridors: Possible dangers? 

        Procheş, Ş.; Wilson, J.R.U.; Veldtman, R.; Kalwij, J.M.; Richardson, D.M.; Chown, S.L. (AMER ASSOC ADVANCEMENT SCIENCE, 2005-11-04)
      • Lantana invasion alters soil nitrogen pools and processes in the tropical dry deciduous forest of India 

        Sharma, G.P.; Raghubanshi, A.S. (Elsevier B.V., 2009)
        Invasive species can alter the soil nutrient pools and processes in ecosystems that they invade by altering the quality and quantity of litter inputs. Studies have shown the impact of vegetative understory invasions on ...
      • Latitudinal and longitudinal barriers in global biogeography 

        Procheş, Ş. (The Royal Society, 2006)
        Due to changes in climate and continental arrangement, plant and animal assemblages faced different dispersal barriers at different moments in Earth’s history. It is generally accepted that groups which diversified ...
      • Leopard tortoise (Stigmochelys pardalis) road mortality and extralimital occurrence in Western Cape, South Africa 

        Baxter-Gilbert, J.; Riley, J.L. (2019)
        During field surveys in the Spring of 2018 we made two observations of Leopard Tortoises (Stigmochelys pardalis) on roadsides near Lambert's Bay, WC, South Africa. One was a deceased adult female, killed as a result of a ...
      • Level of environmental threat posed by horticultural trade in Cactaceae 

        Novoa, A.; Le Roux, J.J.; Richardson, D.M.; Wilson, J.R.U. (Society of Conservation Biology, 2017)
        Ornamental horticulture has been identified as an important threat to plant biodiversity and is a major pathway for plant invasions worldwide. In this context, the family Cactaceae is particularly challenging because it ...
      • Limiting similarity and Darwin’s naturalization hypothesis: understanding the drivers of biotic resistance against invasive plant species. 

        Yannelli, F.A.; Koch, C.; Jeschke, J.M.; Kollmann, J. (Springer, 2017)
        Several hypotheses have been proposed to explain biotic resistance of a recipient plant community based on reduced niche opportunities for invasive alien plant species. The limiting similarity hypothesis predicts that ...
      • Long-distance migratory birds threatened by multiple independent risks from global change 

        Zurell, D.; Graham, C.H.; Gallien, L.; Thuiller, W.; Zimmermann, N.E. (Springer Nature Publishing, 2018)
        Many species migrate long distances annually between their breeding and wintering areas1. Although global change affects both ranges, impact assessments have generally focused on breeding ranges and ignored how environmental ...
      • Managing consequences of climate-driven species redistribution requires intergration of ecology, conservation and social science 

        Bonebrake, T.C.; Brown, C.J.; Bell, J.D.; Blanchard, J.L.; Chauvenet, A.; Champion, C.; Chen, I.-C.; Clark, T.D.; Colwell, R.K.; Danielsen, F.; Dell, A.I.; Donelson, J.M.; Evengard, B.; Ferrier, S.; Frusher, S.; Garcia, R.A.; et al. (Cambridge Philosophical Society, 2018)
        Climate change is driving a pervasive global redistribution of the planet’s species. Species redistribution poses new questions for the study of ecosystems, conservation science and human societies that require a coordinated ...
      • A measure of data availability on alien species for countries globally 

        Spear, Dian; Marais, Elrike (2012-03-07)
        See McGeoch et al. 2010. Data availability is based on information from national reports and Pyšek et al. 2008.
      • Mechanisms driving an unusual latitudinal diversity gradient for grasses 

        Visser, V.; Clayton, W.D.; Simpson, D.A.; Freckleton, R.P.; Osborne, C.P. (John Wiley & Sons Ltd., 2014)
        Aim For most higher-order taxa, species diversity peaks sharply in the moist tropics and declines rapidly at higher latitudes. However, the mechanisms driving this latitudinal gradient are numerous, remain uncertain and ...
      • A meta-analysis of observational epidemiological studies of Newcastle disease in African agro-systems, 1980-2009 

        Miguel, E.; Grosbois, V.; Berthouly-Salazar, C.; Caron, A.; Cappelle, J.; Roger, F. (Cambridge University Press, 2013)
        Newcastle disease (ND) is one of the most important and widespread avian pests. In Africa, backyard poultry production systems are an important source of protein and cash for poor rural livelihoods. ND mortality in these ...
      • Monographs of invasive plants in Europe: Carpobrotus 

        Campoy, J.G.; Acosta, A.T.R.; Affre, L.; Barreiro, R.; Brundu, G.; Buisson, E.; Gonzalez, L.; Lema, M.; Novoa, A.; Retuerto, R.; Roiloa, S.R.; Fagundez, J. (Taylor & Francis, 2018)
        This report synthesizes all aspects of the taxonomy, distribution, history of introduction and spread, ecological constrains (including preferred climate, substratum and habitats), responses to biotic and abiotic factors, ...
      • Myro Kerguelenensis density and body size on Marion Island 

        Lee, Jennifer; Somers, Michael; Chown, Steven (2011-09-01)
        This dataset provides information on the abundance, body size variation and sex ratio of an indigenous spider, Myro kerguelenensis, across an altitudinal gradient on sub-Antarctic Marion Island.
      • National parks impact and pathways database for plants 

        Spear, Dian; van Wilgen, Nicola; Foxcroft, L.C. (2012-03-07)
        A database of potential impacts and possible pathways of introduction for alien plants in national parks in South Africa.
      • Natural dispersal to sub-Antarctic Marion Island of two arthropod species 

        Lee, J.E.; Terauds, A.; Chown, S.L. (Springer, 2014)
        Distinguishing between species that are recent natural colonists, recent anthropogenic introductions, or previously unknown, but long-term resident native species, is a challenge for those who manage the conservation of ...
      • “Nested” cryptic diversity in a widespread marine ecosystem engineer: a challenge for detecting biological invasions 

        Teske, P.R.; Rius, M.; McQuaid, C.D.; Styan, C.A.; Piggott, M.P.; Benhissoune, S.; Fuentes-Grünewald, C.; Walls, K.; Page, M.; Attard, C.R.M.; Cooke, G.M.; McClusky, C.F.; Banks, S.C.; Baker, N.P.; Beheregaray, L.B. (BioMed Central Ltd., 2011)
        Background: Ecosystem engineers facilitate habitat formation and enhance biodiversity, but when they become invasive, they present a critical threat to native communities because they can drastically alter the receiving ...
      • Niche differentiation among invasive crayfish and their impacts on ecosystem structure and functioning 

        Jackson, M.C.; Jones, T.; Milligan, M.; Sheath, D.; Taylor., J.; Ellis, A.; England, J.; Grey, J. (John Wiley & Sons Ltd, 2014)
        1. Many aquatic ecosystems sustain multiple invasive species and interactions among them have important implications for ecosystem structure and functioning. Here, we examine interactions among two pairs of invasive crayfish ...
      • No differences in genetic diversity of Cotoneaster franchetii (Rosaceae) shrubs between native and non-native ranges 

        Lett, I.; Hensen, I.; Hirsch, H.; Renison, D. (Sociedad Argentica de Botanica, 2015)
        It is commonly assumed that plants have more genetic diversity in their native range than in areas where they have been introduced due to founder effects. However, few studies have proven this assumption and included the ...
      • No survival of native larval frogs in the presence of invasive Indian bullfrog Hoplobatrachus tigerinus tadpoles 

        Mohanty, N.P.; Measey, J. (Springer, 2019)
        Invasive amphibians have considerable negative impacts on recipient ecosystems, however, impact has been assessed for only a few species, limiting risk assessments. In particular, the impact of invasive anurans with ...
      • Non-indigenous ungulates as a threat to biodiversity 

        Spear, D.; Chown, S.L. (The Zoological Society of London, 2009)
        Non-indigenous ungulate species pose a problem for conservation. They can be socially and economically valuable, but are also potentially harmful to biodiversity. Therefore, their introduction requires an explicit ...

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