Počet záznamů: 1

Spatial pattern affects diversity-productivity relationships in experimental meadow communities

  1. 1.
    0347368 - BU-J 2011 RIV FR eng J - Článek v odborném periodiku
    Lamošová, T. - Doležal, Jiří - Lanta, V. - Lepš, Jan
    Spatial pattern affects diversity-productivity relationships in experimental meadow communities.
    Acta Oecologica-International Journal of Ecology. Roč. 36, č. 3 (2010), s. 325-332 ISSN 1146-609X
    Grant CEP: GA AV ČR IAA600050802; GA ČR GA526/09/0963; GA ČR GA206/09/1642; GA ČR GA526/07/0808
    Výzkumný záměr: CEZ:AV0Z60050516; CEZ:AV0Z50070508
    Klíčová slova: functional-groups richness * species-diversity * experimental plant-communities
    Kód oboru RIV: EF - Botanika
    Impakt faktor: 1.460, rok: 2010

    Plant species create aggregations of conspecifics as a consequence of limited seed dispersal, clonal growth and heterogeneous environment. Such intraspecific aggregation increases the importance of intraspecific competition relative to interspecific competition which may slow down competitive exclusion and promote species coexistence. To examine how spatial aggregation impacts the functioning of experimental assemblages of varying species richness, eight perennial grassland species of different growth form were grown in random and aggregated patterns in monocultures, two-, four-, and eight-species mixtures. In mixtures with an aggregated pattern, monospecific clumps were interspecifically segregated. Mixed model ANOVA was used to test (i) how the total productivity and productivity of individual species is affected by the number of species in a mixture, and (ii) how these relationships are affected by spatial pattern of sown plants.
    Trvalý link: http://hdl.handle.net/11104/0188161