Search for dissertations about: "grazing"

Showing result 21 - 25 of 241 swedish dissertations containing the word grazing.

  2. 21. Grazing and the geographical range of seaweeds : The introduced Fucus evanescens and the newly described Fucus radicans

    Author : Helena Forslund; Lena Kautsky; Ove Eriksson; Veijo Jormalainen; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; non-indigenous species; phlorotannin; herbivore defense; ; Biology; Biologi; Marine ecology; Marin ekologi; Plant Ecology; växtekologi;

    Abstract : Along the coast of temperate oceans brown algae of the genus Fucus form dense stands on rocky shores and are keystone species of the coastal ecosystem. These large seaweeds are perennial and function as substrate for many sessile marine organisms, provide shelter for fauna and juvenile fish, and are food source. A number of abiotic (e.g. READ MORE

  4. 22. Finding graze time - combining grazing with automatic milking

    Author : Haldis Kismul; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : The introduction of automatic milking systems (AMS) within European dairy farming in the past decades has been accompanied by a decline in grazing and in time spent outdoors by dairy cows. Grazing is a natural behaviour of cattle, and the opportunity to go outdoors is often considered a component of animal welfare. READ MORE

  5. 23. Grazing in Macroalgae Communities of the Baltic Sea

    Author : Roland Engkvist; Hans Kautsky; Högskolan i Kalmar; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; Akvatisk ekologi; Aquatic Ecology;

    Abstract : Fucus vesiculosus and Fucus serratus are the only large, structuring perennial brown macroalgae in the low salinity waters of the Swedish coast of the Baltic Proper. Since the 1970s there are reports of declining Fucus vesiculosus stands from several locations around the Baltic Proper, but also indications of recoveries e.g. READ MORE

  6. 24. Reindeer forage plants in the early grazing season : growth and nutritional content in relation to climatic conditions

    Author : Kristina Warenberg; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Renbetesväxter; Ekologi: botanik; Betesfrågor; Renbete; Ekologi; Renar; Ekologi: botanik; Renbetesväxter;

    Abstract : .... READ MORE

  7. 25. Herbivores influence nutrient cycling and plant nutrient uptake : insights from tundra ecosystems

    Author : Hélène Barthelemy; Olofsson Johan; Ellen Dorrepaal; Ann Milbau; Gough Laura; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Reindeer grazing; large herbivores; nutrient cycling; plant nutrient uptake; soil nutrient availability; arctic plant ecology; soil microbial communities; 15N stable isotopes; plant-soil interactions; plant quality; dung and urine.; Environmental Science; miljövetenskap; biology; biologi;

    Abstract : Reindeer appear to have strong positive effects on plant productivity and nutrient cycling in strongly nutrient-limited ecosystems. While the direct effects of grazing on vegetation composition have been intensively studied, much less is known about the indirect effect of grazing on plant-soil interactions. READ MORE