Search for dissertations about: "species distribution models"

Showing result 1 - 5 of 108 swedish dissertations containing the words species distribution models.

  2. 1. Phylogeny, taxonomy and species delimitation of water mites and velvet mites

    Author : Jeanette Stålstedt; Johannes Bergsten; Fredrik Ronquist; Joanna Mąkol; Ashley Dowling; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Acariformes; Parasitengona; Hydrachnidia; Trombidia; water mites; velvet mites; taxonomy; cryptic species; species delimitation; DNA; GMYC; experimental rearing; new synonyms; distribution; phylogeny; revised classification; Systematic Zoology; zoologisk systematik och evolutionsforskning;

    Abstract : This study is part of the Swedish Taxonomy Initiative (STI) - one of the most ambitious all taxa biodiversity inventories in the world. One of the pillars in STI is to support taxonomic research on the most neglected taxonomic groups with the aim to lift the level of knowledge of biodiversity in the country. READ MORE

  4. 2. Species distribution models : ecological applications for management of biodiversity

    Author : Simon Hallstan; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Species distribution models are a group of methods often used to estimate consequences of global change, to assess ecological status and for other ecological applications. The main idea behind species distribution models is that the geographical distributions of species can, to a large part, be explained by environmental factors and that species distributions therefore can be predicted in time or space. READ MORE

  5. 3. Interaction strength and keystone species in model food webs

    Author : Maria Christianou; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; interaction strength; keystone species; keystone links; permanence; resilience; local stability; Lotka-Volterra models; species loss;

    Abstract : Ecological communities are often exposed to different kind of disturbances of varied magnitude. The response to disturbances can be affected by, among other factors, the strength of interactions between species within the community. READ MORE

  6. 4. Modelling spatial and temporal species distribution in the Baltic Sea phytobenthic zone

    Author : Antonia Nyström Sandman; Hans Kautsky; Martin Isaeus; Georg Martin; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; species distribution modelling; niche; gradient; prediction; environmental factors; phytobenthos; scale; Marine ecology; Marin ekologi; Marine Ecology; marin ekologi;

    Abstract : Statistical modelling is often used to relate the presence or abundance of species to environmental predictors, thereby providing a basis for predictive mapping of species or biodiversity. The variables included must thus be relevant and reflect actual changes in the environment. READ MORE

  7. 5. Mathematical modelling and experimental simulation of chlorate and chlor-alkali cells

    Author : Philip Byrne; KTH; []
    Keywords : chlorate; chlor-alkali; current density distribution; current distribution; potential distribution; hydrodynamic behaviour; electrolysis; bubble-evolution;

    Abstract : The production of chlorate, chlorine and sodium hydroxiderelies heavily on electrical energy, so that savings in thisarea are always a pertinent issue. This can be brought aboutthrough increased mass transfer of reacting species to therespective electrodes, and through increased catalytic activityand uniformity of current density distribution at theseelectrodes. READ MORE