Jentsch, A; Friedrich, S; Steinlein, T; Beyschlag, W; Nezadal, W: Assessing conservation actions for substitution of missing dynamics on former military training areas in central Europe, Restoration Ecology, 17, 107-116 (2009), doi:10.1111/j.1526-100X.2007.00339.x
Abstract:
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.
Aktuelle Termine

Fr. 10.07.2020 aktuell
12th BayCEER Workshop 2020: "Call for Abstracts" geöffnet
BayCEER-Kolloquium:
Do. 29.10.2020
Dissolved organic matter quality in differently managed forest ecosystems
Do. 05.11.2020
Signaling of rhizosphere microbiome: key for plant health, development and nutrition
Do. 12.11.2020
Environmental monitoring in Afghanistan’s national parks – regional challenges and global implications
Workshop:
Do. 29.10.2020
Neuer Termin: BayCEER Workshop 2020
BayCEER Blog
13.01.2020
Why Science Communication?
24.05.2019
Stoichiometric controls of C and N cycling
07.05.2019
Flying halfway across the globe to dig in the dirt – a research stay in Bloomington, USA
16.04.2019
Picky carnivorous plants?
RSS Blog als RSS Feed
Wetter Versuchsflächen
Luftdruck (356m): 968.7 hPa
Lufttemperatur: 29.1 °C
Niederschlag: 0.0 mm/24h
Sonnenschein: <1 h/d
Wind (Höhe 17m): 5.6 km/h
Wind (Max.): 16.9 km/h
Windrichtung: S

...mehr
Globalstrahlung: 678 W/m²
Lufttemperatur: 26.6 °C
Niederschlag: 0.0 mm/24h
Sonnenschein: 4 h/d
Wind (Höhe 32m): 0.0 km/h

...mehr
Diese Webseite verwendet Cookies. weitere Informationen