Počet záznamů: 1  

Hybrid ecosystems can contribute to local biodiversity conservation

  1. 1.
    0472883 - BÚ 2017 RIV NL eng J - Článek v odborném periodiku
    Kasari, L. - Saar, L. - de Bello, Francesco - Takkis, K. - Helm, A.
    Hybrid ecosystems can contribute to local biodiversity conservation.
    Biodiversity and Conservation. Roč. 25, č. 14 (2016), s. 3023-3041. ISSN 0960-3115. E-ISSN 1572-9710
    Grant CEP: GA ČR(CZ) GA16-15012S
    Institucionální podpora: RVO:67985939
    Klíčová slova: Functional diversity * Habitat integrity * Phylogenetic diversity
    Kód oboru RIV: EH - Ekologie - společenstva
    Impakt faktor: 2.265, rok: 2016

    Calcareous grasslands have become severely threatened habitats in Europe. The aim of this study was to investigate the changes in plant species richness, and functional and phylogenetic diversity in northern Estonian calcareous (alvar) grasslands resampled after 90 years of land-use change. Functional traits characterizing species that have benefited most from decreased habitat area and altered environmental conditions, and additional species that can potentially inhabit the remaining grassland patches were identified. Also changes in the relative amount of habitat-specific species were studied to detect a possible decrease in habitat integrity. Although grasslands in the studied region had lost most of their original area (similar to 90 %), species richness had substantially increased due to invasion by more competitive, nutrient-demanding native species. Functional diversity generally increased, whereas phylogenetic diversity showed no response to altered conditions. Overall, these grasslands have lost their integrity as calcareous grassland habitat type in the region, because the relative amount of habitat-specific characteristic species has declined significantly. However, although the grasslands have transformed to a 'hybrid' habitat type and restoration to their previous state is likely not reasonable, such degraded species-rich grassland fragments can still be recognized as important habitats to preserve high local biodiversity and several characteristic species of calcareous grasslands. As current landscapes consist of an increasing number of hybrid and novel communities, new tools to supplement traditional conservation or restoration practices are necessary to recognize and maintain regions and habitats of high local biodiversity.
    Trvalý link: http://hdl.handle.net/11104/0270099

     
     
Počet záznamů: 1  

  Tyto stránky využívají soubory cookies, které usnadňují jejich prohlížení. Další informace o tom jak používáme cookies.