Essays about: "Shannon-diversity"

Showing result 1 - 5 of 10 essays containing the word Shannon-diversity.

  1. 1. Riparian plant biodiversity and community composition of ditches and straightened streams : identifying key environmental drivers in a boreal forest setting

    University essay from SLU/Dept. of Forest Ecology and Management

    Author : Rasmus Staaf; [2024]
    Keywords : artificial waterways; riparian zone; novel ecosystems; ; forestry; ditch network maintenance; species richness; hill-diversity; drainage ditches; coarse woody debris; ditch cleaning; ecology;

    Abstract : Modified ecosystems are typically seen as degraded and having no ecological value. In many cases, the modification of the ecosystem was done more than 100 years ago and may have had time to recover and become a refugia for species that were once more common in the landscape. READ MORE

  3. 2. Decreases over time in shannon diversity of land snails

    University essay from Göteborgs universitet / Institutionen för biologi och miljövetenskap

    Author : Jens Hemming; [2023-02-15]
    Keywords : Climate change; global warming; land snails; species composition;

    Abstract : With rising temperatures as a consequence of climate change, suitable habitats for land snails in the northern hemisphere may be shifting northwards. However, there is a lack of studies that explore the latitudinal effects that climate change has on land snails. READ MORE

  4. 3. Plant community responses to 15 years of nitrogen and phosphorus fertilization along an elevational gradient in the subarctic tundra

    University essay from SLU/Dept. of Forest Ecology and Management

    Author : Gaya Ten Kate; [2023]
    Keywords : arctic tundra; climate change; fertilization; nitrogen; phosphorus; plant community composition; species richness; Simpson’s diversity; Shannon-Wiener diversity; elevational gradient;

    Abstract : Climate change in the Arctic has profound effects on tundra vegetation, directly through increasing temperatures and indirectly through changes in plant community composition and nutrient cycling. Fertilization experiments are widely used to study the effects of increased nutrient availability on arctic tundra vegetation. READ MORE

  5. 4. Restoration strategies in boreal forests : prescribed burning and gap cutting effects on plant diversity and community composition

    University essay from SLU/Dept. of Wildlife, Fish and Environmental Studies

    Author : Clara Espinosa Del Alba; [2020]
    Keywords : restoration ecology; boreal forest; fire; gap cutting; biodiversity; voluntary set-asides; vascular plants; bryophytes; forest management;

    Abstract : The boreal biome is one of the largest in the world and their forests have been widely exploited for centuries. Consequently, it has suffered ecological simplification and loss of biodiversity. Under these circumstances passive conservation is no longer enough and active restoration techniques need to be tested. READ MORE

  6. 5. Validation of theoritical approach to measure biodiversity using plant species data

    University essay from Högskolan i Skövde/Institutionen för biovetenskap

    Author : Md Naim Ud Dwla Neloy; [2020]
    Keywords : BBCI; empirical estimation; correlation; measure biodiversity;

    Abstract : Measuring Biodiversity is an important phenomenon to serve best to our ecology and also keep environment sound. Variety of life on different levels, like an ecosystem, life forms on a site, landscape collectively known as Biodiversity. Species richness and evenness combine measures as Biodiversity. READ MORE