Search for dissertations about: "CLADISTICS"

Found 3 swedish dissertations containing the word CLADISTICS.

  2. 1. Morphology, taxonomy and cladistics of southern African Anthemideae (Asteraceae)

    Author : Mari Källersjö; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : This study concerns some southern African genera of the tribeAnthemideae (Astcraceae). Generic delimitations within the subtribeUrsiniinae, and the "Pentzia complex" are considerably amended.Four new genera are described, viz. Foveolina, Inulanthera,Myxopappus, and Oncosiphon. READ MORE

  4. 2. Relationships between nomenclature, phylogenetics and systematics

    Author : Yann Bertrand; Mikael Härlin; Mieczyslaw Wolsan; Södertörns högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; PhyloCode; philosophy; systematics; individuality; natural kind; possible worlds; causal theory of reference; PhyloCode; philosophy; systematics; individuality; natural kind; possible worlds; causal theory of reference;

    Abstract : Systematists have become increasingly aware of the limits imposed by the current system of nomenclature for accurately representing evolutionary relationships and managing efficiently names associated with clades. In reaction, a new system of nomenclature, the PhyloCode is being developed that fully recognizes the historical nature of taxonomy and the importance of the cladistics revolution. READ MORE

  5. 3. Systematics and assessment of the chemosynthetic bivalve family Vesicomyidae

    Author : Frida Hybertsen; Steffen Kiel; Helen Coxall; Elizabeth Harper; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Cenozoic; deep sea; hydrocarbon seeps; chemosynthetic; Bivalvia; Vesicomyidae; maringeologi; Marine Geology;

    Abstract : The deep ocean has fascinated researchers for centuries with discoveries of new ecosystems and species, yet there are still many biogeographic and evolutionary questions unanswered. Along active and passive tectonic margins, specialized ecologies thrive in a symbiosis between chemosynthesizing bacteria and their host animals. READ MORE