Essays about: "säsongsvariationer"

Showing result 16 - 20 of 23 essays containing the word säsongsvariationer.

  1. 16. Riparian Vegetation Distribution along the Ume River : Predicted responses of riparian plants to environmental flow modifications in run-of-river impoundments

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Louise Berglund; [2014]
    Keywords : riparian plant species; environmental flows; water level regulation; flood duration; run-of-river impoundments;

    Abstract : River environments are complex and dynamic ecosystems, and provide valuable ecosystem services such as clean water. The species rich riparian vegetation performs many important ecosystem functions such as reducing erosion and filter inputs from upland areas. READ MORE

  3. 17. Metylkvicksilver i utlopp från våtmarker : säsongsvariationer och dess orsaker

    University essay from SLU/Dept. of Forest Ecology and Management

    Author : Fideli Ottosson; Jenny Tjernlund; [2013]
    Keywords : kvicksilver; temperatur; organsikt material; sulfat; vattenföring;

    Abstract : Antropogen utsläpp av metylkvicksilver har i flera århundranden skett till atmosfären och vattensystem. I Sverige har ansträngningar för att minska kvicksilverutsläpp pågått sedan 1970-talet, men problem med kvicksilverförgiftad fisk kvarstår. READ MORE

  4. 18. Autumn water sources for understory vegetation and fungi in a boreal forest : an evaluation using stable isotopes

    University essay from SLU/Dept. of Forest Ecology and Management

    Author : Javier Segura; [2013]
    Keywords : Ericaceous shrubs; fungi; Pinus sylvestris; rain event; soil profile; water stable isotopes;

    Abstract : Understory vegetation and fungi are regarded as important ecological drivers of processes like productivity and nutrient cycling in boreal forests. Whilst those processes are linked to soil water content, relatively little is known about the sources of soil water for these forest components. READ MORE

  5. 19. Genetisk variation i säsongsbunden reproduktion hos får

    University essay from SLU/Dept. of Animal Breeding and Genetics

    Author : Sandra Bonow; [2011]
    Keywords : lammproduktion; avelsarbete; säsongsvariationer; genotypning;

    Abstract : The purpose of this literature study was to describe the seasonal reproduction in sheep and the presence of genetic variation in fertility traits. Methods to induce oestrus are described and the possibilities to change the reproduction season through breeding are discussed. Sheep have a pronounced seasonality in their reproduction. READ MORE

  6. 20. Renen och nötkreaturet : en jämförelse mellan två olika typer av idisslare

    University essay from SLU/Dept. of Animal Breeding and Genetics

    Author : Elisabet Wahlstedt; [2009]
    Keywords : rangifer tarandus tarandus; bos taurus; gräs och grovfoderätare; intermediär; digestionsfysiologi;

    Abstract : The aim of this literature review was to make a comparison between the feeding requirements of Swedish reindeer (Rangifer tarandus tarandus) and meat producing cattle (Bos taurus) within farming. Reindeer are an intermediate feeding type; they have the ability to adapt to short term seasonal changes in food. READ MORE