Sökning: "size-structured interactions"
Visar resultat 1 - 5 av 8 avhandlingar innehållade orden size-structured interactions.
1. Effects of behavioural flexibility and habitat complexity on predator-prey interactions in fish communities
Sammanfattning : .... LÄS MER
2. Invasion of top and intermediate consumers in a size structured fish community
Sammanfattning : In this thesis I have investigated the effects of invading top and intermediate consumers in a size-structured fish community, using a combination of field studies, a lake invasion experiment and smaller scale pond and aquaria experiments. The lake invasion experiment was based on introductions of an intermediate consumer, ninespine stickleback (Pungitius pungitius L. LÄS MER
3. Ontogenetic bottlenecks : effects on intraguild predation systems and ecosystem efficiency
Sammanfattning : Size-dependent differences between individuals in size-structured organisms have fundamental effect on population and community dynamics. Intraguild predation (IGP) is one specifically interesting constellation that often arises when two size-structured populations interact. LÄS MER
4. Food Web Ecology -- individual life-histories and ecological processes shape complex communities
Sammanfattning : 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. LÄS MER
5. Carex humilis - a caespitose clonal plant: ramet demography, ring formation, and community interactions
Sammanfattning : Carex humilis forms rings of densely aggregated ramets in dry grassland vegetation in Central Europe. In the thesis I conclude that ramet demography is important both for analyzing fitness in clonal plants and for understanding how C. humilis rings are formed. I studied the ramet demography of C. LÄS MER