Sökning: "geometric morphometrics"

Hittade 3 uppsatser innehållade orden geometric morphometrics.

  1. 1. Brain morphology and behavioural variation in relation to habitat and predation risk in minnows (Phoxinus phoxinus)

    Master-uppsats, Uppsala universitet/Limnologi; Uppsala universitet/Institutionen för biologisk grundutbildning

    Författare :Marina Gallego González; [2022]
    Nyckelord :brain size; Ecology; environmental complexity; European minnow; fish; geometric morphometrics; morphological divergence; phenotypic plasticity; schooling.;

    Sammanfattning : So far, research on inter- and intraspecific teleost brain plasticity across different freshwater environments has been widely conducted. However, insights of brain morphological variation on social and predator avoidance behaviours are lacking. LÄS MER

  3. 2. Dynamics of Selachian (Shark) Dental Morphology During the Early Mesozoic

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Alexander Paxinos; [2017]
    Nyckelord :Early Mesozoic; Selachii; morphological disparity; geometric morphometrics; early radiation; Tidig Mesozoisk; Selachimorpha; morfologisk disparitet; geometrisk morfometri; tidig strålning;

    Sammanfattning : The ancestors of all modern day sharks and rays (Neoselachii) may have appeared during the Late Palaeozoic, but their major diversification happened sometime during the Early Mesozoic. Taxonomic evidence places the first neoselachian diversification in the Early Jurassic. LÄS MER

  4. 3. Squamation in Andreolepis from the late Silurian of Sweden

    Master-uppsats, Evolution och utvecklingsbiologi; Institutionen för biologisk grundutbildning

    Författare :Donglei Chen; [2010]
    Nyckelord :;

    Sammanfattning : The origin of osteichthyans (bony fishes and tetrapods) dates back to the Late Silurian, but theearly evolution of osteichthyans is poorly understood. Andreolepis is one of the oldest knownosteichthyans, but exclusively documented by detached and fragmented dermal microremains. LÄS MER