Essays about: "ecological modeling"

Showing result 21 - 25 of 30 essays containing the words ecological modeling.

  1. 21. The invasion of Smooth cordgrass (Spartina alterniflora) in China : risk assessment using spatial modeling

    University essay from Växtekologi och evolution; Institutionen för biologisk grundutbildning

    Author : Jinghan Zhang; [2012]
    Keywords : prediction; Smooth cordgrass; Maxent;

    Abstract : Smooth cordgrass (Spartina alterniflora) is one of the harmful quarantine weeds in China. Since its first introduction in China in 1979, this alien species has spread rapidly and damaged local ecological environments. Research to predict a suitable new area is an important step for management of the species and to prevent a further spread. READ MORE

  3. 22. Modeling historical forest landscape in the county of Halland, Sweden using data from the first National Forest Inventory

    University essay from SLU/Dept. of Forest Resource Management

    Author : Cen Chen; [2012]
    Keywords : landscape; regression; Kriging; k-Nearest Neighbor; kernel; R;

    Abstract : Spatial patterns is of core interest for landscape ecology, and tracking its temporal evolvement helps to attain a better understanding of the ecological effects of current ecosystems. The presence and recent digitization of the first Swedish National Forest Inventory data and the occurrence of a concurrent historical map offers a unique chance to take on this very challenging task. READ MORE

  4. 23. The Impacts of Climate Changeon River Flow and Riparian Vegetation in the Amu Darya River Delta, Central Asia

    University essay from Institutionen för naturgeografi och kvartärgeologi (INK)

    Author : Ye Su; [2012]
    Keywords : Climate change; GCM; Aral Sea Drainage Basin; Amu Darya River Delta; river flow; Tugai;

    Abstract : The increasing global air temperature will trigger changes in the global mean water vapor, precipitation patterns and evapotranspiration, which further leads to changes, for instance, instream flow, groundwater flow and soil moisture. Projections of future changes in thehydrological regime of the Aral Sea Drainage Basin (ASDB) in Central Asia are however highlyuncertain, due to complexities of natural and engineered water systems of the basin. READ MORE

  5. 24. Reintroducing captive bred species : a community ecological perspective

    University essay from Institutionen för fysik, kemi och biologi

    Author : Joakim Svensson; [2011]
    Keywords : Captive breeding; species reintroductions; species interactions; food-web; secondary extinctions; Lokta-Volterra models.;

    Abstract : Throughout history species has gone extinct due to anthropogenic activities. During the last century efforts have been done to reintroduce species back into the wild. Zoos that originally were created as amusement parks for people have today a new purpose; to keep and breed species in captivity for later reintroductions in the wild. READ MORE

  6. 25. Thermal Simulation of Hybrid Drive System

    University essay from Fluida och mekatroniska system

    Author : Shiva Kumar B M; kathiravan Ramanujam; [2011]
    Keywords : AMESim; 1D simulation; Thermal Simulation; Hybrid electric motor; Heat transfer; Cooling; All wheel drive system; Vehicle thermal management;

    Abstract : Safety, performance and driving comforts are given high importance while developing modern day cars. All-Wheel Drive vehicles are exactly designed to fulfill such requirements. In modern times, human concern towards depleting fossil fuels and cognizance of ecological issues have led to new innovations in the field of Automotive engineering. READ MORE