Browsing POST-DOCTORAL RESEARCH OUTPUTS by Title
Now showing items 109-128 of 203
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Landscape corridors: Possible dangers?
(AMER ASSOC ADVANCEMENT SCIENCE, 2005-11-04) -
Lantana invasion alters soil nitrogen pools and processes in the tropical dry deciduous forest of India
(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
(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 ... -
Level of environmental threat posed by horticultural trade in Cactaceae
(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.
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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 ... -
Non-native rainbow trout (Oncorhynchus mykiss) occupy a different trophic niche to native Breede River redfin (Pseudobarbus burchelli) which they replace in South African headwater streams
(John Wiley & Sons Ltd, 2017)Recent research has revealed that non-native rainbow trout Oncorhynchus mykiss have largely replaced a native cyprinid, the Breede River redfin Pseudobarbus burchelli, as the dominant species of fish in many headwater ...