Počet záznamů: 1

Cushions of Thylacospermum caespitosum (Caryophyllaceae) do not facilitate other plants under extreme altitude and dry conditions in the north-west Himalayas

  1. 1.
    0365143 - BU-J 2012 RIV GB eng J - Článek v odborném periodiku
    de Bello, Francesco - Doležal, Jiří - Dvorský, Miroslav - Chlumská, Zuzana - Řeháková, Klára - Klimešová, Jitka - Klimeš, Leoš
    Cushions of Thylacospermum caespitosum (Caryophyllaceae) do not facilitate other plants under extreme altitude and dry conditions in the north-west Himalayas.
    Annals of Botany. Roč. 108, č. 3 (2011), s. 567-573 ISSN 0305-7364
    Grant CEP: GA AV ČR IAA600050802; GA ČR GD206/08/H044
    Výzkumný záměr: CEZ:AV0Z60050516
    Klíčová slova: stress-gradient hypothesis * positive associations * ecosystem engineering
    Kód oboru RIV: EF - Botanika
    Impakt faktor: 4.030, rok: 2011

    Cushion plants are commonly considered as keystone nurse species that ameliorate the harsh conditions they inhabit in alpine ecosystems, thus facilitating other species and increasing alpine plant biodiversity. A literature search resulted in 25 key studies showing overwhelming facilitative effects of different cushion plants and hypothesizing greater facilitation with increased environmental severity (i.e. higher altitude and/or lower rainfall). At the same time, emerging ecological theory alongside the cushion-specific literature suggests that facilitation might not always occur under extreme environmental conditions, and especially under high altitude and dryness. The results support the emerging theoretical prediction of restricted facilitative effects under extreme combinations of cold and dryness, integrating these ideas in the context of the ecology of cushion plants. This evidence suggests that cases of missing strong facilitation are likely to be found in other extreme alpine
    Trvalý link: http://hdl.handle.net/11104/0200456