Sökning: "Niklas Wahlberg"

Hittade 5 avhandlingar innehållade orden Niklas Wahlberg.

  1. 1. Teaching and Learning Protein Synthesis through Domain-Specific Language in Upper Secondary Education

    Författare :Sara Wahlberg; Niklas M. Gericke; Lena Tibell; Marcus Haamann; Karlstads universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; Concepual demography; context; protein synthesis; upper secondary education; Kemi; Chemistry;

    Sammanfattning : The aim of this licentiate thesis is to contribute to understanding of upper secondary teaching and learning of protein synthesis with a focus on domain-specific language. It is based on two studies, designated Studies I and II. LÄS MER

  2. 2. Diversification on an ancient Darwinian island : Evolutionary history of caddisflies (Trichoptera) and other organisms on New Caledonia

    Författare :Marianne Espeland; Kjell Arne Johanson; Niklas Wahlberg; Michael Balke; Stockholms universitet; []
    Nyckelord :New Caledonia; Trichoptera; island; biogeography; phylogenetics; DNA; dispersal; vicariance; adaptation; ultramafic; diversification; new species; environmental factors; Systematic Zoology; zoologisk systematik och evolutionsforskning;

    Sammanfattning : Islands are either of continental or oceanic origin, and the biota of such islands are a result of vicariance and dispersal, respectively. New Caledonia, in the South Pacific, is a part of former Gondwana, but the origin of its biota is heavily debated. LÄS MER

  3. 3. The dispersal–vicariance pendulum and butterfly biogeography

    Författare :Ullasa Kodandaramaiah; Niklas Wahlberg; Brett Riddle; Stockholms universitet; []
    Nyckelord :Junonia; Coenonympha; Coenonymphina; Mycalesina; historical biogeography; vicariance; dispersal; DIVA; NATURAL SCIENCES; NATURVETENSKAP; zoologisk ekologi; Animal Ecology;

    Sammanfattning : The relative importance of dispersal and vicariance in speciation is a subject of long standing debate. The earliest historical biogeographers invoked dispersal to explain disjunct distributions. LÄS MER

  4. 4. Evolutionary history of the butterfly subfamily Satyrinae (Lepidoptera: Nymphalidae)

    Författare :Carlos Peña; Niklas Wahlberg; Roderic Page; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; hostplant use; habitat shift; diversity; grasses; biogeography; phylogeny; Molecular biology; Molekylärbiologi; zoologisk ekologi; Animal Ecology;

    Sammanfattning : I present an overview of the evolutionary history of Satyrinae butterflies (Lepidoptera: Nymphalidae). By using Bayesian and cladistic methods, I develop a phylogenetic hypothesis as a basis for studying the evolutionary history of the group. LÄS MER

  5. 5. Phylogenetic perspective on host plant use, colonization and speciation in butterflies

    Författare :Elisabet Weingartner; Sören Nylin; Niklas Wahlberg; Felix Sperling; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Oscillation hypothesis; speciation; Polygonia; Celastrina; Pararge; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi; zoologisk ekologi; Animal Ecology;

    Sammanfattning : In this thesis we have studied speciation in three butterfly genera Polygonia (Nymphalidae, Nymphalini), Pararge (Nymphalidae, Satyrinae) and Celastrina (Lycaenidae: Polyommatinae). In the first paper a dated phylogeny, based on molecular data, of Polygonia was constructed. We found strong conflict between the nDNA and mtDNA datasets. LÄS MER