Sökning: "Population monitoring"
Visar resultat 21 - 25 av 342 avhandlingar innehållade orden Population monitoring.
21. Hemiparasites in the Subarctic: Resource acquisition, growth and population dynamics
Sammanfattning : Parasitic plants are found in nearly every major terrestrial ecosystem and can be divided into two groups, holoparasites (lacking chlorophyll) and hemiparasites (chlorophyllous). The host-parasite connection is either situated above (stem parasites) or below ground (root parasites). LÄS MER
22. Biodegradation of hydrocarbons in soil and water
Sammanfattning : Biodegradation of aliphatic and polycyclic aromatichydrocarbons was studied in soil and liquid cultures attemperatures ranging from -5 º C to 20 º C undervarious aerobic or anaerobic, nitrate reducing, conditions. Twocontaminated soils were used in the studies. LÄS MER
23. Differential migration in raptors
Sammanfattning : Differences between ages, sexes and populations in the timing of migration at Falsterbo, Sweden and in the choice of wintering site among raptors in Scania were investigated. Competition and dominance is the best primary explanation to the results. LÄS MER
24. Monitoring and management of the Swedish brown bear (Ursus arctos) population
Sammanfattning : For society, there is a constant need for scientifically based information to successfully manage bear populations. In Sweden, the brown bear (Ursus arctos) population is increasing and expanding after that successful conservation measures was employed during the 20th century. LÄS MER
25. Determination of benzene in urine and breath for monitoring of benzene exposure
Sammanfattning : The aim of this work was to develop and validate methods for determination of unmetabolized benzene in breath and urine. The methods were intended for the bio monitoring of benzene to assess both occupational and environmental exposure.A method was developed for the determination of benzene in end-exhaled air. LÄS MER