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Found 3 essays matching the above criteria.

  1. 1. Fundamental and realized niches of two chrysomelid competitors on two Salix host species

    University essay from SLU/Dept. of Ecology

    Author : Sharmin Kawshar; [2015]
    Keywords : fundamental niche; realized niche; Galerucella lineola; Phratora vulgatissima; Salix viminalis; Salix dasyclados; interspecific competition; egg-laying preference; coexistence;

    Abstract : The fundamental and realized niches of phytophagous insects constitute an important topic in contemporary ecology. Hutchinson (1965) formulized the concept of the fundamental and realized niche with regards to species responses to interspecific competition; and for the herbivore insects’ community the consequence of interspecific competition is a debatable and questionable from the very beginning to till now. READ MORE

  3. 2. Are tritrophic interactions shaped by plant genotype? A field experiment.

    University essay from Institutionen för ekologi, miljö och geovetenskap

    Author : Ylva Nordström; [2013]
    Keywords : Tritrophic interactions; plant genotype; aggregative behaviour; Galerucella tenella; Asecodes parviclava;

    Abstract : In recent years it has become apparent that when studying plant-herbivore interactions, it is important to also consider the multitrophic context, i.e. to what extent generalist and specialist enemies act as bodyguards for the plant. READ MORE

  4. 3. Effects of leaf beetle herbivory on pollination success and fruit development in woodland strawberry Fragaria vesca

    University essay from SLU/Dept. of Ecology

    Author : Lisa Malm; [2013]
    Keywords : herbivory; pollination success; pollinator reference; fruit development; fruit yield; leaf beetles; Galerucella tenella; Galerucella sagittariae; Fragaria vesca;

    Abstract : Cultivating well-developed and marketable garden strawberries (Fragria x ananassa) and woodland strawberries (Fragaria vesca) depends on successful pollination by insects. Organic garden strawberry plantations harbour higher pollinator densities and have been shown to produce bigger and better developed fruits than conventional farms. READ MORE