Essays about: "insect populations"

Showing result 6 - 10 of 24 essays containing the words insect populations.

  1. 6. Pollinators in Urban Landscapes : Local and landscape factors impact on pollinator species richness and abundance

    University essay from Södertörns högskola/Miljövetenskap

    Author : Felicia Rehn; [2019]
    Keywords : Green infrastructure; insect conservation; urban biodiversity; ecosystem services; supporting services; urbanization;

    Abstract : Increasing human populations results in fast-growing urbanization. Natural and semi-natural landscapes are replaced with urban landscape features like roads, sidewalks, industrial and residential buildings. The remnants of the natural landscapes are left fragmented and are often managed by frequent mowing and trimming of the vegetation. READ MORE

  3. 7. Pest or Pleasure? An Evaluation of Urban Insect Conservation Governance – Cases from Hamburg & Malmö

    University essay from Lunds universitet/Internationella miljöinstitutet

    Author : Robin Memelink; [2019]
    Keywords : Insect Conservation; Urbanisation; Governance; Policy Instruments; Applied Research; Social Sciences;

    Abstract : Insects play vital roles in almost every ecosystem and have high ecological, social as well as economic value. Human activity -most critical in urban environments- profoundly stress insect populations and habitats, regardless of their known benefits to society. READ MORE

  4. 8. Polyandry and genetic diversity in populations of Pholidoptera griseoaptera along an environmental gradient

    University essay from SLU/Dept. of Ecology

    Author : Matilda Jutzeler; [2019]
    Keywords : polyandry; genetic diversity; multiple mating; microsatellites; nuptial gift; phenotype;

    Abstract : Polyandry is a common mating pattern in different insect species and it leads to increased genetic diversity in the offspring and prevents inbreeding in populations. According to the theory of mate choice, mates should choose a partner that will increase heterozygosity in their offspring. READ MORE

  5. 9. Towards a sustainable pest management of the invasive bug Halyomorpha halys in Trentino province, Italy

    University essay from SLU/Dept. of Biosystems and Technology (from 130101)

    Author : Damiano Moser; [2019]
    Keywords : Brown Marmorated Stink Bug; H. Halys; hemiptera; biotremology; Semi-Structured Interview; Thematic Analysis; invasive species; stakeholder perception;

    Abstract : Some invasive insects are agricultural pests, like the brown marmorated stinky bug (BMSB), an extremely phytophagous pentatomids. The lack of efficient low-impact control strategies makes this insect extremely dangerous for agricultural crops. In Italy, the first established populations of BMSB were found in 2012. READ MORE

  6. 10. Bug Appétit! : A qualitative research of purchase intentions towards insect-based products.

    University essay from Högskolan i Jönköping/IHH, Företagsekonomi

    Author : Jonas Ziehensack; Tommila Stina; [2018]
    Keywords : onsumer Behavior; Entomophagy; Insects; Protein Substitutes; Generation Y; Theory of Planned Behavior; Attitude; Subjective Norm; Perceived Behavioral Control; Purchase Intention.;

    Abstract : Background: A significant increase in the global food demand is expected to occur in the near future. Since the currently implied food system will not be able to meet this demand without impacting the environment negatively, it is crucial to consider alternative ways of producing food. READ MORE