rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Spatially explicit, individual-based modelling of pastoralists' mobility in the rangelands of east Africa
  name:
    name part: MacOpiyo, Laban Adero, 1969-
    role:
      role term: creator
  name:
    name part: Stuth, Jerry W.
    role:
      role term: thesis advisor.
  type of resource: text
  genre: bibliography
  origin info:
    place:
      place term: txu
    date issued: 2005
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: electronic
    form: remote
  abstract: An agent based-model of mobility of pastoralists was developed and applied to the semi-arid rangeland region extending from southern Ethiopia to northern Kenya. This model was used to investigate temporal adaptation of pastoralists to the spatial heterogeneity of their environment. This dissertation describes the development, structure, and corroboration process of the simulation model, Pastoral Livestock Movement Model (PLMMO). PLMMO is a spatially explicit, individual-based pastoralists-animal foraging and movement model. It simultaneously simulates the foraging and movement behavior of individual pastoralists and their livestock in a rangeland ecosystem. Pastoralists' herd mobility patterns and other measures of movement were compared to data from field studies. Predictions of the model correspond to observed mobility patterns across seasons. The distances moved were found to be significantly correlated (r² = 0.927 to 0.977, p<0.0001) to drought and non-drought climatic regimes.The PLMMO model therefore proved to be a useful tool for simulating general movement patterns of pastoralists relative to movement range sizes in the pastoral rangelands of southern Ethiopia and northern Kenya. We then used the PLMMO model to explore the impact of emerging changes in rangeland use in the study area. The ways in which pastoralists' mobilitypatterns adapt to emerging challenges in the study area were explored bysimulating the following four scenarios: 1) climate change with concomitant reduction in forage yield, 2) climate change with concomitant improvement and higher variability in forage yield, 3) increased livestock population densities and 4) improved access to water. The climate induced change scenario with increased and more variable forage production resulted in the shortest distances moved by pastoralists in comparison to all other scenarios. The total search distances under this scenario were only 20% of normal season distances. The improved water access scenario a…
  note: by Laban Adero MacOpiyo.
  note: "Major Subject: Rangeland Ecology and Management"
  note: Title from author supplied metadata (automated record created on Nov. , 09:45:50.)
  note: Vita.
  note: Abstract.
  note: Electronic resource.
  note: Mode of access: World Wide Web.
  note: System requirements: World Wide Web access and Adobe Acrobat Reader.
  note: Ph. D. Texas A&M University 2005.
  note: Includes bibliographical references.
  note: Text (Dissertation).
  subject:
    topic: Major Rangeland Ecology and Management
  subject:
    topic: Agent based modelling
  subject:
    topic: Africa
  subject:
    topic: Mobility
  subject:
    topic: Spatially explicit
  subject:
    topic: Pastoralists
  identifier: http://hdl.handle.net/1969.1/2631
  record info:
    record content source: TXA
    record creation date: 061109
    record change date: 20151104084159.0
    record identifier: in00002204801