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: Species replacement in response to herbivory
    sub title: influence of grazing history, competitive interactions and population structure
  name:
    name part: Anderson, Val Jo
    name part: 1958-
    role:
      role term: creator
  name:
    name part: Briske, David D.
    role:
      role term: degree supervisor.
  name:
    name part: Hussey, Mark A.
    role:
      role term: degree committee member.
  name:
    name part: Kothmann, Merwyn M.
    role:
      role term: degree committee member.
  name:
    name part: Smeins, Fred E.
    role:
      role term: degree committee member.
  name:
    name part: Texas A & M University
    role:
      role term: degree granting institution.
  type of resource: text
  genre: bibliography
  genre: Academic theses
  origin info:
    place:
      place term: xx
    date issued: 1989
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: xii, 105 leaves : illustrations ; 29 cm
  abstract: Although the concept of range condition classification has served as a basic tenant of range management in the United States for nearly 40 years, the mechanisms associated with species replacement have received remarkably little investigation. Two major viewpoints which address the causal mechanisms of species replacement are: (1) differential utilization among species based primarily on growth-form and (2) differential regrowth ability among species based on meristematic availability and physiological attributes. The potential mechanisms facilitating species composition changes in response to long-term herbivory were investigated in a series of three experiments within a transplant garden. The research approach involved the establishment of the climax dominant, Schizachyrium scoparium, into three neighborhoods (Schizachyrium scoparium, Bothriochloa saccharoides, and Stipa leucotricha) representing herbivore-induced species composition changes as herbaceous retrogression progresses in the southern true prairie. Disproportionate utilization of the climax dominant, as opposed to differential regrowth capabilities among species, was the predominate mechanism contributing to the replacement of the climax dominant by lower seral species. Intraspecific neighborhoods provided a more competitive environment for the climax dominant than neighborhoods of the two lower seral species indicating that the regrowth capability of the climax dominant equaled or exceeded that of the lower seral species which replace it under intensive herbivory. Climax dominants having a prior history of herbivory did not express significant architectural differences or increased competitive abilities in the presents of interspecific competition in comparison with plants without a history of herbivory. Tiller dispersion into a configuration represented by a large number of small plants did not increase production following defoliation in comparison to a similar number of tillers in fewer, larger plan…
  note: "Major subject: Range Science."
  note: Typescript (photocopy).
  note: Vita.
  note: Ph. D. Texas A & M University 1989
  note: Includes bibliographical references.
  subject:
    topic: Forage plants
  subject:
    topic: Schizachyrium
  subject:
    topic: Major range science
  identifier: http://proxy.library.tamu.edu/login
  identifier: https://hdl.handle.net/1969.1/DISSERTATIONS-991526
  identifier: http://gateway.proquest.com/openurl
  related item:
    location:
      url: http://proxy.library.tamu.edu/login
  related item:
    location:
      url: https://hdl.handle.net/1969.1/DISSERTATIONS-991526
  related item:
    location:
      url: http://gateway.proquest.com/openurl
  record info:
    record content source: TXA
    record creation date: 900118
    record change date: 20220104090445.0
    record identifier: in00000869259
    language of cataloging:
      language term: eng