Sökning: "human ecology"
Visar resultat 21 - 25 av 288 avhandlingar innehållade orden human ecology.
21. Microbenthos under Pressure : Impacts of human activities on bacteria and meiofauna communities in Baltic soft sediments
Sammanfattning : The marine benthic zone is one of the largest habitats on the planet, harbouring a large diversity of life that underpin many important ecological processes. However, these habitats have been under growing stress from human activities, profoundly altering their living communities. LÄS MER
22. Sediment resuspension : Impacts and extent of human disturbances
Sammanfattning : Resuspension of sediment by anthropogenic disturbances is a concern due to the impacts it has on organisms and ecosystems. Bottom trawling is one major cause of sediment resuspension. A field study showed that a small trawl created a sediment plume 120 - 150 m wide and 15-18 m high (Paper 1). The sediment in the same study was highly contaminated. LÄS MER
23. Influence of Human-induced Environmental Changes on the Physiology of the Harmful Benthic Marine Microalga Ostreopsis ovata
Sammanfattning : This thesis focus on the influence of human-induced environmental changes on the physiology of Ostreopsis ovata; a toxic, benthic dinoflagellate, which form blooms in tropical and temperate marine waters. O. LÄS MER
24. Population structure, movements and site fidelity of grey seals in the Baltic Sea
Sammanfattning : The management and conservation of wildlife must rely on a solid understanding of key ecological and demographic factors. To devise management and conservation strategies for species affected by human activities it is essential to define populations. LÄS MER
25. Coral reefs in a human-dominated environment : implications of altered disturbance regimes and reduced resilience
Sammanfattning : Coral reefs are facing an "Anthropocene " era where humans have advanced from a minor species with limited influence on coral reefs to a major source of disturbance. Disturbance arriving from human influences may not only interact with each other, but also with natural disturbance regimes, leading to synergistic effects. LÄS MER