Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 8 of 8 for “"Alien invasive species"”.
-
A comparative study of the seed bank dynamics of two congeneric alien invasive species
… lowlands of the fynbos biome is threatened by alien Acacia encroachment. The seed bank dynamics of the two most widespread invaders in the region, Acacia saligma and A. cyclops, was studied to elucidate those factors contributing most to their invasive success. This information was then used to …
-
Testing the use of port biological baseline surveys to support relevant marine alien species management applications in Africa
The prevention of non-native marine species introductions is the first line of defense in the management of alien invasive species problems occurring on coastlines around the world. Ports and the shipping industry have been targeted as a sector requiring increased attention and regulation to reduce …
-
Familiarizing the Alien: Designing working nodes that reveal the opportunity of invasive alien plants as a resource in the Theewaterskloof catchment area
… to the dam is almost entirely infested with invasive alien plant species which are the single largest contributor to water loss from the dam (up to ±300 million liters of water are lost per year). Given the context of severe water scarcity in the region, the management of these alien invasive …
-
Effect of land degradation on the above-ground vegetation and soil seed bank of a Rangeland in Kunene region Namibia
… were sampled along each transect. Woody plant species were identified and counted in a 20 x 20 m quadrat, while herbaceous plants were assessed in a 1 m2 quadrant, nested within the larger quadrat. Soil cores samplers measuring 9.7 cm in diameter and 5 cm in depth were obtained using a soil …
-
Reconfiguring the burnt scar: a landscape architectural response to the Knysna fires of June 2017
… burns of fynbos stands and the removal of alien invasive species. Furthermore, it is proposed that the reconfiguring of the burnt scar requires a restructuring of the commercial plantations and the establishment of critical fire breaks affecting the urban interface. The introduction of fire …
-
Ethnobotanical survey of problem weeds, alien invasive plant species and their roles in Nzhelele, Makhado Local Municipality, Limpopo Province, South Africa
Background: Problem plants and alien invasive weed species are part of today‟s ecological transformation. Ethnobotanical literature on ecological prominence and ethical values of problem alien weeds is scant and should be documented to avoid loss of valuable species. Aim: The study was aimed at …
-
The Peninsula Shale Renosterveld of Devil's Peak: phytosociology, system drivers and restoration potential
… what remains today is a complex mosaic of alien invasive species and indigenous vegetation in various states of degradation. As a result of the substantial transformation, it is evident that to improve the conservation value of this highly threatened vegetation type, restoration is …
-
The effectiveness of Table Mountain National Park Marine Protected Area in the conservation of rocky shore biodiversity
… compare (1) the densities and sizes of exploited species and rarely harvested species, and (2) community composition, between these two levels of protection. Some clear patterns emerged. Firstly, notake areas had significantly greater densities of the commonly harvested limpets Cymbula granatina, …