Search for dissertations about: "Multiple threats"

Showing result 1 - 5 of 38 swedish dissertations containing the words Multiple threats.

  2. 1. Zooplankton responses to multiple threats within and across generations

    Author : Yongcui Sha; Enhet akvatisk ekologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Predation; Ultraviolet radiation; Daphnia; copepods; plasticity; maternal effects; adaptation; diel vertical migration;

    Abstract : In their natural environments, organisms are unlikely to be distributed randomly but instead they are constantly faced with multiple and variable threats. In order to maximise survival, they need to be able to perceive the present threat level and respond accordingly. READ MORE

  4. 2. Phenotypic responses of zooplankton to variable conditions

    Author : Marcus Lee; Enhet akvatisk ekologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Multiple threats; Plasticity; Risk-Spreading; sexual conflict; ultraviolet radiation; Daphnia; Copepods;

    Abstract : Organisms are continually challenged by multiple threats in the environment, and such threats are seldom constant in either time or space. Therefore, organisms must maintain physiological, behavioural, morphological and life- history adaptations across environments to prevent reductions in fitness. READ MORE

  5. 3. Psychological methods for the assessment of chronic toxic encephalopathy and multiple chemical sensitivity

    Author : Kai Österberg; Institutionen för psykologi; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; industrial medicine; Occupational health; Psychology; organic solvents; personality; neuropsychology; multiple chemical sensitivity; toxic encephalopathy; Organic chemistry; Psykologi; Yrkesmedicin; arbetsmiljömedicin; Organisk kemi;

    Abstract : The dissertation deals with psychological methods aimed at improving the understanding and assessment of two disorders related to contact with chemicals: solvent-induced chronic toxic encephalopathy (TE) and multiple chemical sensitivity (MCS). The main aim of Paper I was to study whether the addition of some newer psychological tests of complex attention and executive functions to a traditional test battery would improve the detection of TE. READ MORE

  6. 4. Multiple threat responses in zooplankton - from communities to individuals

    Author : Mikael Ekvall; Enhet akvatisk ekologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Most organisms on Earth live a life where they are exposed to multiple and variable threats. In order to maximise survival they need to be able to perceive and respond to these threats. Two common threats that crustacean zooplankton are faced with are predation and ultraviolet radiation (UVR). READ MORE

  7. 5. Decision Support for Emergency Response to Multiple Natural Hazards : CHALLENGES AND NEEDS

    Author : Viktor Sköld Gustafsson; Tobias Andersson Granberg; Mattias Hjerpe; Martin Waldemarsson; Margaret Mcnamee; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Global warming exceeding 1.5°C above pre-industrial levels will very likely lead to unavoidable increases of several climate hazards in the coming decades. Climate change phenomena can increase the risk of several extreme weather events, leading to risks of what is commonly considered as natural hazards, for instance landslides and forest fires. READ MORE