Essays about: "Dispersal ability"

Showing result 1 - 5 of 26 essays containing the words Dispersal ability.

  1. 1. A computational model of metapopulation dynamics and organism-mediated nutrient flow

    University essay from Göteborgs universitet / Institutionen för biologi och miljövetenskap

    Author : Amanda Hansson; [2023-08-07]
    Keywords : computational model; population dynamics; metapopulation dynamics; nutrient flow; simulation; spatially explicit; individual-based;

    Abstract : The aim of this project was to assess, using in-silico experiments, how different life history char-acteristics, such as age at maturity and dispersal ability of individuals, influence the dynamics of a metapopulation. To achieve this, a novel model of a spatially explicit metapopulation, with organ-ism-mediated nutrient flow between fragmented habitat patches, was implemented by means of computer simulations. READ MORE

  3. 2. Dispersal and habitat use of juvenile brown trout (Salmo trutta) following egg stocking : -A case study in the river Rotälven, Sweden

    University essay from Karlstads universitet/Institutionen för miljö- och livsvetenskaper (from 2013)

    Author : Jonathan Larsson; [2022]
    Keywords : brown trout; egg stocking; dispersal; alevin; fry; parr; redd; habitat preference; Öring; romutsättning; spridning; yngel; parr; habitatpreferens;

    Abstract : Egg stocking in rivers and streams is a common measure to support and re-introduce salmonid populations. To ensure the success of egg stocking programs, knowledge of the early life stages of juveniles including dispersal ability and habitat preferences of fry is a prerequisite. READ MORE

  4. 3. The effect of restoration of semi-natural grassland on arthropod populations

    University essay from Linköpings universitet/Institutionen för fysik, kemi och biologi

    Author : Molly Wikingson; [2021]
    Keywords : Arthropoda; Conservation; Grasslands; Landscape factors; Restoration success; Species rich communities;

    Abstract : Semi-natural grasslands are valuable ecosystems that have a high biodiversity. Unfortunately, a lot of this biodiversity is being lost as semi-natural grasslands are declining in both size and number. Restoration to reestablish semi-natural grasslands is often done by removing shrubs and trees and planting seeds. READ MORE

  5. 4. How do corridors connecting two separated landscapes affect the ability of trophic metacommunities to survive habitat loss?

    University essay from Linköpings universitet/Institutionen för fysik, kemi och biologi

    Author : Carl Bogstedt; [2021]
    Keywords : Bayesian network; corridors; habitat loss; metacommunity;

    Abstract : With an increasing worldwide infrastructure more habitats are fragmented by roads and buildings, which can cause a reduction in biodiversity up to 75%. One way to counteract this is by predicting the outcome, with the help of theoretical models, before it happens. READ MORE

  6. 5. Differences in plant trait distribution in semi-natural grassland habitats of Sweden

    University essay from Stockholms universitet/Institutionen för naturgeografi

    Author : Viivi Vepsäläinen; [2020]
    Keywords : Plant traits; semi-natural grassland habitats; landscape openness; landscape ecology;

    Abstract : Habitat type has been suggested to be a major factor contributing to differencesin plant trait distribution of grassland habitats. Land use changes in agricultural landscapes have affected the available habitats and the dispersal ability of plants, which may effect plant trait diversity of agricultural landscapes. READ MORE