Search for dissertations about: "coral reefs"

Showing result 1 - 5 of 33 swedish dissertations containing the words coral reefs.

  1. 1. Upholding the coral loop : Resilience, alternative stable states and feedbacks in coral reefs

    Author : Albert Norström; Magnus Nyström; Nancy Knowlton; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; resilience; alternative stable states; regimes; feedbacks; recruitment; coral reefs; marine ecosystem management; regime shifts; phase shifts; Marine ecology; Marin ekologi; Natural Resources Management; naturresurshushållning;

    Abstract : Coral reefs are suffering unprecedented declines in coral cover and species diversity. These changes are often associated with  substantial shifts in community structure to new dominant organisms. Ultimately, these “phase shifts” can be persistent and very difficult to return from. READ MORE

  2. 2. Exploring the resilience in coral reefs

    Author : Jerker Lokrantz; Magnus Nyström; Morgan Pratchett; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Coral Reefs; Resilience; Functional Groups; Vulnerability; Overfishing; Ecosystem Indicators; Tanzania; Zanzibar; Marine ecology; Marin ekologi; Natural Resources Management; naturresurshushållning;

    Abstract : Considering the unprecedented global decline of coral reefs concerns about their future existence are well-justified. Safeguarding ecological resilience (i.e. the capacity of ecosystems to absorb disturbance without changing their identity) has become a prime goal for management in order to combat further degradation of coral reefs. READ MORE

  3. 3. Macroalgal community dynamics on coral reefs : Implications for management

    Author : Erik Mörk; Nils Kautsky; Magnus Nyström; Tim R. McClanahan; Stein Fredriksen; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; Macroalgae; Coral Reefs; Herbivory; Nutrients; Ecosystem change; Fish; Sea Urchins; East Africa; Marine Ecotoxicology; marin ekotoxikologi;

    Abstract : Although rather inconspicuous on healthy coral reefs, macroalgae form the basis of coral food webs. Today, macroalgae are generally increasing and many reefs undergo transitions from coral to macroalgal dominance resulting from e.g. enhanced nutrient loading or increased fishing. READ MORE

  4. 4. Coral reefs in the Anthropocene : The effects of stress on coral metabolism and symbiont composition

    Author : Suzanne Faxneld; Michael Tedengren; Alina Szmant; Stockholms universitet; []
    Keywords : Corals; Disturbance; Galaxea fascicularis; ITS2; Metabolism; mtDNA; Pollution; Porites lutea; Symbiodinium; Temperature; Turbinaria mesenterina; Vietnam; Marine Ecotoxicology; marin ekotoxikologi;

    Abstract : Coral reefs constitute some of the most prolific and diverse ecosystems on our planet, but also among the most threatened. This thesis investigates the effects of environmental stressors on corals’ metabolism and symbiont diversity. READ MORE

  5. 5. Benthic cryptofauna and internal bioeroders on coral reefs

    Author : Helena Strömberg; Charlotta Kvarnemo; Pat Hutchings; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; bioerosion; cryptofauna; coral; invertebrates; damselfish; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi;

    Abstract : The cryptofauna of coral reefs may act as a food source for fish, while being grazers or predators themselves, and hence constitute an important group in the coral reef food web. In addition, the actively eroding taxa of the cryptofauna contribute to the decomposition and recirculation of calcium carbonate and are consequently essential for the rebuilding new coral. READ MORE