Sökning: "Habitat choice"

Visar resultat 1 - 5 av 34 avhandlingar innehållade orden Habitat choice.

  1. 1. The evolutionary ecology of niche separation : Studies on the sympatric butterflies Leptidea sinapis and Leptidea reali

    Författare :Magne Friberg; Wiklund Christer; John N. Thompson; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Lepidoptera; ecological character displacement; reproductive isolation; species discrimination; habitat; host plant; life history; sexual selection; female choice; Biology; Biologi; zoologisk ekologi; Animal Ecology;

    Sammanfattning : Studies of ecology and evolution have become largely integrated, and increasing attention is paid to the role of ecology for speciation and post speciation divergence. In this thesis I have applied an in-depth approach studying the ecology of a butterfly species pair; the morphologically virtually identical sister-species, the Wood white (Leptidea sinapis) and Reál’s wood white (Leptidea reali). LÄS MER

  2. 2. Biodiversity & Biofuel. Harvest of Logging Residue Affects Arthropods

    Författare :Karolina Nittérus; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; biodiversity; beetles; biofuel; Carabidae; Cerambycidae; Celeoptera; forestry; habitat; structure; logging residue; Lycosidae; microhabitat choice; slash; species compositin; species richness; spiders; structural comlexity; whole-tree harvest;

    Sammanfattning : .... LÄS MER

  3. 3. Habitat compensation in nature-like fishways : Effects on benthos and fish

    Författare :Stina Gustafsson; Olle Calles; Martin Österling; Jostein Skurdal; Paul Giller; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biocanal; biodiversity; brown trout; freshwater pearl mussel; functional feeding groups; habitat heterogeneity; large woody debris; macroinvertebrates; PIT-tag; salmonids; Biology; Biologi;

    Sammanfattning : The construction of nature-like fishways has become an increasingly common measure to restore longitudinal connectivity in streams and rivers affected by hydroelectric development. These fishways also have the potential to function as habitat compensation measures when running waters have been degraded or lost. LÄS MER

  4. 4. HABITAT CHOICE OF BENTHIC SHRIMPS - Results and discussions on shrimp sampling from the Gullmar Fjord on the Swedish west coast, the Faeroe Islands, Inhaca Island in southern Moçambique and the shelf slope of the Bahamas

    Författare :Matz S. Berggren; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Marine caridea; associated shrimps; Habitat choice;

    Sammanfattning : .... LÄS MER

  5. 5. Sources of variability in heterospecific social information use for breeding habitat selection : Role of genetics and personality in collared flycatchers

    Författare :Jennifer Morinay; Blandine Doligez; Lars Gustafsson; Rachel Kendal; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Heterospecific social information; personality; aggressiveness; nest site choice; within- and between-individual variability; quantitative genetics; experimental approaches in the wild; collared flycatchers;

    Sammanfattning : All their life, individuals have to make decisions that may strongly affect their fitness. To optimize their decisions, they can use personally acquired information but also information obtained from observing other individuals (“social information”). LÄS MER