scholarly journals Hull fouling marine invasive species pose a very low, but plausible, risk of introduction to East Antarctica in climate change scenarios

2021 ◽  
Author(s):  
Oakes Holland ◽  
Justine Shaw ◽  
Jonathan S. Stark ◽  
Kerrie A. Wilson
Keyword(s):  
Climate Change ◽  
Invasive Species ◽  
East Antarctica ◽  
Climate Change Scenarios ◽  
Hull Fouling ◽  
Marine Invasive Species

scholarly journals ‘Caribbean Creep’ Chills Out: Climate Change and Marine Invasive Species

PLoS ONE ◽  
2011 ◽  
Vol 6 (12) ◽  
pp. e29657 ◽  
Author(s):  
João Canning-Clode ◽  
Amy E. Fowler ◽  
James E. Byers ◽  
James T. Carlton ◽  
Gregory M. Ruiz
Keyword(s):  
Climate Change ◽  
Invasive Species ◽  
Marine Invasive Species

scholarly journals Distribution and status of marine invasive species in and bordering the West Coast National Park

Koedoe ◽  
2004 ◽  
Vol 47 (1) ◽  
Author(s):  
T.B. Robinson ◽  
C.L. Griffiths ◽  
N. Kruger
Keyword(s):  
Invasive Species ◽  
National Park ◽  
World Wide ◽  
Global Scale ◽  
The West ◽  
Hull Fouling ◽  
Marine Invasions ◽  
Marine Invasive Species ◽  
Ballast Tanks ◽  
Being Moved

On a global scale, species are constantly being moved from their areas of origin to new locales. Such range extensions can occur naturally, but are frequently aided (intentionally or non-intentionally) by humans (Mack et al. 2000). As a result, the marked world-wide increase in animal, plant, and microbial immigrations, has been found to roughly track the increase in human commerce (Mack et al. 2000). The principal vectors of human-mediated marine invasions are ballast water (Williams et al. 1988), mariculture (Minchin 1996), sediment held in ballast tanks (Carlton 1985), and ship hull fouling (Minchin 1996).

scholarly journals Assessing distribution changes of selected native and alien invasive plant species under changing climatic conditions in Nyeri County, Kenya

2020 ◽  
Author(s):  
Julius Maina Waititu ◽  
Charles Ndegwa Mundia ◽  
Arthur W Sichangi
Keyword(s):  
Climate Change ◽  
Invasive Species ◽  
Invasive Plant ◽  
Climatic Conditions ◽  
The Other ◽  
Range Shift ◽  
Climate Change Scenarios ◽  
Invasive Plant Species ◽  
Species Management ◽  
Study Species

AbstractChanges in climatic conditions increases the risks of native and alien taxa expanding in geographical range and causing habitat transformations. The role of climate change in enhancing bio-invasions in local natural environments need to be assessed to guide on effective species management policy formulations. In this present study, we used species presence records, predictor variables and an ensemble of General Circulation Models data to predict suitable ecological niches for five of the selected invasive plant species within Nyeri County, Kenya. We predicted species distributions under RCP2.6, RCP4.5, and RCP8.5 emission scenarios for the years 2050 and 2070. We analysed species distribution changes to identify invasive species requiring immediate management action. Our analysis indicated that three of the five study species were suitable in ~50% of the study area while the other two were suitable in ~30% under the current climate. Lantana camara L. and Solanum campylacanthum Hochst. ex A. Rich species would experience the largest range shift distance of ~6 – 10km and the largest habitat gain of ~12 – 33% in the future. Caesalpinia decapetala (Roth) Alston, Opuntia stricta (Haw.) Haw. and Senna didymobotrya (Fresen.) H.S. Irwin & Barneby species on the other hand would have a decline in habitat range under future climate change scenarios. Although, S. didymobotrya is considered a native species, it would lose half of its current suitable habitat in the future. Range shift analysis showed all study species would generally shift to the north west direction or towards the Aberdare ranges. From this study we conclude that invasive species management programs for smaller geographical areas ought to consider projecting species distributions under climate change scenarios to identify areas with high possible biodiversity changes. This would be important to conservationists when prioritizing management actions of invasive species in the region where data on invasive species is still limited.

scholarly journals Numerical modelling of the ice sheet in western Dronning Maud Land, East Antarctica: impacts of present, past and future climates

2000 ◽  
Vol 46 (152) ◽  
pp. 54-66 ◽  
Author(s):  
J. O. Näslund ◽  
J. L. Fastook ◽  
P. Holmlund
Keyword(s):  
Climate Change ◽  
Climate Changes ◽  
Ice Sheet ◽  
East Antarctica ◽  
Ice Thickness ◽  
Mountain Range ◽  
Climate Change Scenarios ◽  
Dronning Maud Land ◽  
Global Sea Level ◽  
Basal Melting

AbstractTime-dependent ice-sheet modelling of a 176 000 km2 area in western Dronning Maud Land, East Antarctica, provided information on the ice sheet’s response to six climate-change scenarios. Another experiment was done to study changes in ice thickness, flow and basal temperature conditions between the present ice configuration and a simulated maximum palaeo-ice sheet. The input to the model included new datasets of bed and surface topography compiled for this study. The results of the six climate-change experiments, including a 0.5°C per century global-warming scenario, show that the ice sheet has a robust behaviour with respect to the different climate changes. The maximum change in ice volume was <5% of the initial volume in all climate runs. This is for only relatively short-term climate changes without major changes in global sea level, and also a simulated ice sheet without an ice shelf. The modelled long-term response time of the ice sheet, 20 kyr or more, indicates that the ice sheet may still be adjusting to the climate change that ended the Last Glacial Maximum. In the maximum palaeo-ice-sheet simulation, with a 5°C climate cooling and the grounding line located at the continental-shelf margin, ice thickness increased drastically downstream from the Heimefrontfjella mountain range but remained basically unaffected on the upstream polar plateau. Compared to present conditions, complex changes in basal temperatures were observed. The extent of areas with basal melting increased, for example in the deep trough of the Veststraumen ice stream. Areas at intermediate elevations in the landscape also experienced increased basal temperatures, with significant areas reaching the melting point. In contrast, high-altitude areas that today are clearly cold-based, such as around Heimefrontfjella and Vestfjella and the Högisen dome, experienced a 5–10°C decrease in basal temperatures in the palaeo-ice-sheet reconstruction. The results suggest that the alpine landscape within these mountain regions was formed by wet-based local glaciers and ice sheets prior to the late Cenozoic.

Modelling impacts of different climate change scenarios on soil water regime of a Mollisol

2005 ◽  
Vol 33 (1) ◽  
pp. 185-188 ◽  
Author(s):  
Csilla Farkas ◽  
Roger Randriamampianina ◽  
Juraj Majerčak
Keyword(s):  
Climate Change ◽  
Soil Water ◽  
Water Regime ◽  
Climate Change Scenarios ◽  
Soil Water Regime
Sign in / Sign up

Export Citation Format

Share Document