Degradation of biodiversity and ecosystem functioning in subtropical grasslands, and thresholds for restoration

Description: Das Projekt "Degradation of biodiversity and ecosystem functioning in subtropical grasslands, and thresholds for restoration" wird vom Umweltbundesamt gefördert und von Technische Universität München, TUM School of Life Sciences, Wissenschaftszentrum Weihenstephan, Lehrstuhl für Renaturierungsökologie durchgeführt. Objectives: 1. To test if the concept of novel and hybrid ecosystems forwarded by R. Hobbs and colleagues applies to degraded subtropical grasslands, i.e. if these ecosystems group along axes of deviation in abiotic conditions and biotic composition from reference ecosystems. 2. To investigate the extent to which ecosystem functions in the hybrid and novel ecosystems differ from reference grasslands, and whether these differences are related to deviation from the biodiversity of reference systems. 3. To manipulate degraded grasslands through selected restoration methods to identify transition thresholds and to test if restorability of abiotic conditions and biotic composition corresponds to restorability of ecosystem functions. A large-scale rapid ecosystem assessment will form the analytical basis of the study, followed up by field experiments on seed limitation (i.e. lack of seed bank or dispersal) and site limitation (i.e. lack of safe sites for germination and inadequate conditions for plant establishment). The experiments will be conducted in a factorial design testing for transition thresholds between degradation stages.

Types:

SupportProgram

Origin: /Bund/UBA/UFORDAT

Tags: Hirsch ? München ? Lack ? Ökosystemzerstörung ? Pflanzensamen ? Wiese ? Wiederherstellung von Ökosystemen ? Grünland ? Grünlandökosystem ? Abiotischer Faktor ? Standortwahl ? Studie ? Schule ? Ökosystemforschung ? Ökosystemfunktion ? Ökosystemzustand ? Bemessungsgrundlage ? Freilandversuch ? Keimung ? Ökosystem ? Schwellenwert ? Planung ? Sanierung ? Biodiversität ? Subtropisches Ökosystem ?

Region: Bayern

Bounding box: 12.53381° .. 12.53381° x 47.795° .. 47.795°

License: cc-by-nc-nd/4.0

Language: Deutsch

Organisations

• Deutsche Forschungsgemeinschaft (Bereitsteller*in)
• Technische Universität München, TUM School of Life Sciences, Wissenschaftszentrum Weihenstephan, Lehrstuhl für Renaturierungsökologie (Betreiber*in)
• Umweltbundesamt (Bereitsteller*in)
• Universidade Estadual do Rio Grande do Sul, Unidade de São Francisco de Paula (Mitwirkende)
• Universidade Federal do Piauí, Centro de Ciências Agrarias (Mitwirkende)
• Universidade Federal do Rio Grande do Sul, Departamento de Botânica (Mitwirkende)
• Universidade Porto Alegre, Centro do Ecologia (Mitwirkende)
• weitere internationale zusammenarbeitende Institutionen (Mitwirkende)

Time ranges: 2013-06-01 - 2024-11-29

Alternatives

• Language: Englisch/English https://ufordat.uba.de/

Status

Aktiv

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