Search for dissertations about: "ecosystem stability"

Showing result 1 - 5 of 42 swedish dissertations containing the words ecosystem stability.

  2. 1. Extinctions and Ecosystem Stability

    Author : Susanne Pettersson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; structural stability; ecosystems; interaction structure; Generalised Lotka-Volterra; complexity; local stability; dynamical systems; stability;

    Abstract : Human society's expansion and demand for both biotic and abiotic natural resources exert a large pressure on ecosystems around the globe. Ecosystems are complex networks of species interacting with each other and their physical surroundings. READ MORE

  4. 2. Stability and complexity of ecosystems - Global interaction constraints, landscape and extinctions

    Author : Susanne Pettersson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Complexity; Collapse; Stability; Ecosystems; Extinctions; Population dynamics; spatial heterogeneity; Dynamical systems; dispersal;

    Abstract : Human society's expansion and demand for both biotic and abiotic natural resources exert a large pressure on ecosystems around the globe. Ecosystems are complex networks of species interacting with each other and their physical surroundings. READ MORE

  5. 3. The emergence of innovation ecosystems: Exploring the role of the keystone firm

    Author : Gouthanan Pushpananthan; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; HUMANIORA; HUMANITIES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; autonomous cars; ecosystem; dominant design; innovation; Technology;

    Abstract : During periods of technological change, firms seek new collaborations and sometimes even reach out to competitors in order to obtain new resources and competences. Understanding the collaborations surrounding new technologies has implications for firms pursuing opportunities with new technologies. READ MORE

  6. 4. Biodiversity and Species Extinctions in Model Food Webs

    Author : Charlotte Borrvall; Bo Ebenman; Owen Petchey; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; biodiversity; food webs; redundancy; relaxation time; stability; stochasticity; species deletion; species extinction; Biology; Biologi;

    Abstract : Many of the earth’s ecosystems are experiencing large species losses due to human impacts such as habitat destruction and fragmentation, climate change, species invasions, pollution, and overfishing. Due to the complex interactions between species in food webs the extinction of one species could lead to a cascade of further extinctions and hence cause dramatic changes in species composition and ecosystem processes. READ MORE

  7. 5. Ecological systems in space: From islands to contiguous landscapes

    Author : Ankit Vikrant; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; ecosystem stability; metacommunity; Metapopulation; community assembly; species area relationships; complex ecological systems;

    Abstract : Dispersal and interaction networks underlie many ecological systems, often dictating spatio-temporal dynamics as well as emergent patterns. Dispersal has implications for establishment for distinct subpopulations of individual species as well as for the emergence of universal spatial patterns and varied community level structures. READ MORE