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: Clonal biology of the caespitose grass Schizachyrium scoparium
    sub title: mechanisms of intraclonal regulation and ecological success
  name:
    name part: Derner, Justin Dean
    name part: 1968-
    role:
      role term: creator
  type of resource: text
  genre: bibliography
  origin info:
    place:
      place term: xx
    date issued: 1996
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: xi, 108 leaves : illustrations ; 28 cm.
  abstract: Restriction of physiological integration to individual ramet hierarchies and inequitable resource acquisition among ramet hierarchies demonstrated that independence is the prevalent Schizachyrium scoparium and Bouteloua gracilis clones along an environmental gradient in the North American Great Plains. Independence among ramet hierarchies appears to be a natural consequence of the developmental architecture of grass clones, indicating that the majority of grasses exist as fragments, rather than entirely integrated clones. Nitrogen- 15, however, was effectively allocated among sequentially developed ramet generations within autonomous hierarchies of S. scoparium throughout a 2-year period. Therefore, even though independence occurs at the level of the entire clone, ramets within individual hierarchies function interdependently. Currently, the most plausible interpretation for the ecological success of the caespitose growth form is effective resource monopolization within the immediate vicinity of individual clones. Resource monopolization can reduce intra- and interspecific competition associated with neighboring clones, resulting in greater fitness for individual caespitose clones and promoting local persistence. Nutrient accumulation in soils beneath individual caespitose clones monopolizes resources and potentially functions as the mechanism conferring ecological success to caespitose grasses. For example. ecological success to caespitose grasses. For example. caespitose grasses (S. scoparium, tall- and midgrass rhizomatous grass (P. virgatum, tallgrass community), accumulated soil organic carbon and nitrogen in soils (0-5 cma depth) directly beneath the basal area of individual clones along the environmental gradient. Long-term herbivory mediated soil resource accumulation by reducing fine-grained soil heterogeneity in the tall- and midgrass communities, but enhanced it in the shortgrass community. Nutrient accumulation beneath clones, however, does not function …
  note: by Justin Dean Derner.
  note: Vita.
  note: "Major Subject: Rangeland Ecology and Management".
  note: Issued also on microfiche from University Microfilms Inc.
  note: Includes bibliographical references: pages 85-97.
  note: Ph. D. Texas A&M University 1996.
  subject:
    topic: Major rangeland ecology and management
  identifier: 97-18328 UMI
  identifier: http://proxy.library.tamu.edu/login
  related item:
    location:
      url: http://proxy.library.tamu.edu/login
  record info:
    record content source: TXA
    record creation date: 970730
    record change date: 20190325093314.0
    record identifier: in00001361951