Search for dissertations about: "complex food-web"
Showing result 1 - 5 of 25 swedish dissertations containing the words complex food-web.
-
1. Complexity and Change in a Simple Food Web : Studies in the Baltic Sea (FAO Area 27.IIId)
Abstract : An influence at one trophic level can result in dynamic impacts also on other components of a food web. These dynamics are known as trophic cascades, and can be both top-down and bottom-up. After a near-collapse of the Baltic cod Gadus morhua stock in the 1980s, its main prey sprat Sprattus sprattus increased dramatically. READ MORE
-
2. Food Web Ecology -- individual life-histories and ecological processes shape complex communities
Abstract : This thesis sets out a food web framework for size-structured populations. The framework enables an ecological approach to food web modelling as the individual life-history from birth, through maturation, and ultimately death is explicitly resolved with the use of bioenergetics based on individual body size. READ MORE
-
3. Effects of temperature and terrestrial carbon on fish growth and pelagic food web efficiency
Abstract : Both temperature and terrestrial dissolved organic carbon (TDOC) have strong impacts on aquatic food web dynamics and production. Temperature affects vital rates of all organisms and terrestrial carbon has been shown to alter the dynamics of phytoplankton and bacterial production and affect the trophic structure of planktonic food webs. READ MORE
-
4. Species Responses to Environmental Fluctuations : impacts of food web interactions and noise color
Abstract : Species constantly experience changes in their environmental conditions owing to natural or human induces reasons. Understanding how species respond to these fluctuations are important for ecology, especially given the ongoing climate change. Empirical studies have shown that species respond differently to the same disturbance. READ MORE
-
5. Effects of warming and browning on benthic and pelagic ecosystem components in shallow lakes
Abstract : The majority of lakes on Earth are shallow, unproductive and located at high latitudes. These lakes are experiencing big changes due to climate change, where two environmental drivers operate simultaneously, browning and warming. How they affect lake ecosystems is not well understood. READ MORE