Essays about: "Gammarus pulex"

Found 3 essays containing the words Gammarus pulex.

  1. 1. Does an evolutionary change in the water sowbug Asellus aquaticus L. alter its functional role?

    University essay from Ekologi; Tekniska högskolan

    Author : Md. Maidul Islam Choudhury; [2011]
    Keywords : Asellus aquaticus; eco-evolutionary dynamic; ecosystem process; Gammarus pulex; intra-specific; inter-specific.;

    Abstract : The ecology behind evolutionary diversification is a well studied area of research, whereas the effects of evolution on ecosystems get little attention. In line with ecological theory, evolutionary diversification of a species could influence different ecosystem aspects such as food web composition, energy flow, nutrient cycling etc. READ MORE

  3. 2. How does predation from fish influence the benthic invertebrates’ species composition in the Phragmites australis and Chara vegetation of Lake Takern?

    University essay from Ekologi

    Author : Ernest Aigbavbiere; [2011]
    Keywords : Handling time; intake rate; predation; macro-invertebrates.;

    Abstract : Predation is one of the important selective factors that regulate the species composition of benthic invertebrate communities. The study objective was to investigate the invertebrate distribution in two contrasting habitats in Lake Takern, southern Sweden, submerged Chara vegetation and emergent Phragmites australis vegetation, and to investigate the influence of predation from fish on certain invertebrates. READ MORE

  4. 3. Sediment toxicity in River Kolbäcksån – toxicity tests with Chironomus riparius and Gammarus pulex

    University essay from SLU/Dept. of Aquatic Sciences and Assessment

    Author : Jenny Öhlander; [2003]
    Keywords : Kolbäcksån; sediment toxicity; Chironomus riparius; Gammarus pulex;

    Abstract : During a long time the river Kolbäcksån has been influenced by mining activities in the catchment area and consequently the lakes in the area have been affected by high metal discharges. The most contaminated lake in river Kolbäcksån is L. Saxen, which is situated in the upper part of the river system. READ MORE