Sökning: "fairy ring"

Hittade 3 avhandlingar innehållade orden fairy ring.

1. 1. Full circle : Rise and fate of genetic variation in Marasmius oreades fairy rings

   Författare :Markus Hiltunen; Hanna Johannesson; Martin Ryberg; Jason Stajich; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; mushroom; fairy ring; Marasmius; mutation; fungi; genomics; Biology with specialization in Systematics; Biologi med inriktning mot systematik;

   Sammanfattning : Genetic variation is a prerequisite for evolution. The degree of variability within a species is governed by forces including mutation, recombination and selection. LÄS MER

3. 2. Carex humilis - a caespitose clonal plant: ramet demography, ring formation, and community interactions

   Författare :Sofie Wikberg; Biologiska institutionen; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ramet density; Plant ecology; Växtekologi; ramet population dynamics; aggregated ramets; intravaginal; phalanx type; LTRE; matrix model; fitness; dry grassland; hollow crown; fairy ring; central die back;

   Sammanfattning : Carex humilis forms rings of densely aggregated ramets in dry grassland vegetation in Central Europe. In the thesis I conclude that ramet demography is important both for analyzing fitness in clonal plants and for understanding how C. humilis rings are formed. I studied the ramet demography of C. LÄS MER

4. 3. Organohalogens in coniferous forest soil

   Författare :Olof Hjelm; Linköpings universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; INTERDISCIPLINARY RESEARCH AREAS; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN;

   Sammanfattning : This thesis is focused on naturally produced organohalogens in soil. It was long assumed that organohalogens found in the environment were mainly of anthropogenic origin, but recent research has shown that large amounts of naturally produced organohalogens are stored in terrestrial environments. LÄS MER