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Assessing conservation actions for substitution of missing dynamics on former military training areas in central Europe

Title data

Jentsch, Anke ; Friedrich, Silke ; Steinlein, Thomas ; Beyschlag, Wolfram ; Nezadal, Werner:
Assessing conservation actions for substitution of missing dynamics on former military training areas in central Europe.
In: Restoration Ecology. Vol. 17 (January 2009) Issue 1 . - pp. 107-116.
ISSN 1526-100X
DOI: https://doi.org/10.1111/j.1526-100X.2007.00339.x

Abstract in another language

Disproportionately large numbers of threatened and endangered species and unusually high biodiversity have been documented on former military training areas. However, throughout the world, nature protection areas on former military grounds are faced with the dilemma of preserving ecosystems that must change. In central Europe, many of these areas are characterized by dry acidic grasslands on sandy soils. However, these resource-limited ecosystems are faced with two interacting threats: missing disturbance dynamics and increasing atmospheric nitrogen deposition from urban agglomerations. The goal of this study was to assess the effectiveness of conservation action for substitution of missing dynamics. Impacts on plant species assembly, performance of functional groups, soil nutrient availability, and successional trajectory are analyzed. Of particular concern is mimicking beneficial effects of military maneuver on pioneer species such as Corynephorus canescens, which is endangered in many countries. In a controlled field experiment, we manipulated mechanical disturbances representing conservation measures—harrowing, topsoil removal, tilling, and tank driving. Our findings suggest that only topsoil removal and tank driving effectively remove organic material and create self-sustaining vegetation dynamics. Topsoil removal affects both filters in community assembly: the abiotic filter related to soil resources and the biotic filter related to competition between species. We further demonstrate that plant functional groups based on growth form show different rates of recruitment after disturbance with graminoids-dominating initial dynamics. This study provides basic information on effective conservation strategies for dry acidic grasslands on former military training areas.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER99705
Keywords: Corynephorus canescens; creative restoration; dry acidic grassland; plant functional type; soil nutrients; succession; topsoil removal
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Professorship Disturbance Ecology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Professorship Disturbance Ecology > Professorship Disturbance Ecology - Univ.-Prof. Dr. Anke Jentsch
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 18 Jun 2015 06:35
Last Modified: 25 May 2016 08:39
URI: https://eref.uni-bayreuth.de/id/eprint/15171