Sökning: "habitat complexity"
Visar resultat 1 - 5 av 50 avhandlingar innehållade orden habitat complexity.
1. Gradients of time and complexity : understanding how riparian and instream ecosystems recover after stream restoration
Sammanfattning : Why evaluations of the ecological outcomes of stream and river restoration have largely reported inconclusive or negative results has been the subject of much debate over the last decade or more. Understanding the reasons behind the lack of positive results is important for bettering future restoration efforts and setting realistic expectations for restoration outcomes. LÄS MER
2. Effects of behavioural flexibility and habitat complexity on predator-prey interactions in fish communities
Sammanfattning : .... LÄS MER
3. Effects of morphometric isolation and vegetation on the macroinvertebrate community in shallow Baltic Sea land-uplift bays
Sammanfattning : Shallow sheltered Baltic Sea bays are ecologically important habitats that harbour a unique vegetation community and constitute vital reproduction areas for many coastal fish species. Knowledge about the invertebrate community in these bays is, however, limited. LÄS MER
4. Small biotopes in agricultural landscapes: importance for vascular plants and effects of management
Sammanfattning : As a consequence of agricultural intensification, large areas of non-crop habitat have been lost and farmland biodiversity has declined. Previous studies have shown that the extent of non-crop habitat influences farmland biodiversity, but the relative importance of different habitat types is less well known and the contribution of small incidental habitats to landscape-scale species richness is not fully understood. LÄS MER
5. Species interactions in streams - effects of predation, competition and ecosystem properties
Sammanfattning : Stream ecosystems are dynamic and they have an inherent environmental variability. Organisms that live in streams are adapted to the continuously changing environment and the presence or absence of species are determined by their environmental requirements, while abundance is most often affected by interactions, such as competition and predation, with other species that are found in the same habitat. LÄS MER