Jentsch, A; Beierkuhnlein, C: Global climate change and local disturbance regimes as interacting drivers for shifting altitudinal vegetation patterns, Erdkunde, 57, 216-231 (2003)
Abstract:
Climate change will be a major driving factor for ecosystem development during the next century. It will be most prominent in areas with narrow climatic gradients such as high mountains. However, the life cycles and dispersal potential of species and the longevity of non-mobile specimen are likely to limit the adaptation to gradually but, compared to the temporal scale of ecosystems, rapidly changing environments. Communities may perform inertia to the shift of species composition and delay the development of more competitive communities on a long-term perspective. This in turn may promote a loss of biodiversity and restrictions in ecosystem functioning and resilience. Then in high mountains disturbances such as mud flows or avalanches might cause hazardous effects on human interests (land use, settlements, and infrastructure). In contrast to this perspective, we suggest in this paper that in a gradually changing climate, disturbances will contribute to a faster adaptation of communities. In a shifting environment, single disturbance events, that are part of a specific disturbance regime, can remove inertia (e.g. non-reproductive long-lived individuals) from a system and support the establishment of new species and structures. This is most important in regions where natural processes of ecosystem development predominate and ephemeral anthropogenic ecosystems are of low importance, which is generally the case in high mountains. Here agricultural land use is limited to small areas. Thus disturbances can contribute to the preservation of biodiversity and ecosystem stability.
Upcoming ...


BayCEER Colloquium:
Th. 2020-01-16
Ecosystem functional types and biome concepts
Ecological-Botanical Garden:
Su. 2020-01-05
Auf ins Neue! Winterspaziergang im ÖBG
Su. 2020-01-05
Konzert: Musikalischer Jahresbeginn mit den Rockin`Dinos
Su. 2020-01-19
Kastilien, Navarra und das Baskenland: Orchideen im Land Don Quijotes
Geographisches Kolloquium:
Tu. 2019-12-17
The meat of the Anthropocene: Food, capital and the globalisation of industrialised animal killing
BayCEER Blog
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
07.05.2019
EGU – interesting research and free coffee
16.04.2019
Picky carnivorous plants?
RSS Blog as RSS Feed
Weather research site
Luftdruck (356m): 964.1 hPa
Lufttemperatur: 9.9 °C
Niederschlag: 0.5 mm/24h
Sonnenschein: 4 h/d
Wind (Höhe 17m): 11.1 km/h
Wind (Max.): 21.6 km/h
Windrichtung: SO

...more
Globalstrahlung: 194 W/m²
Lufttemperatur: 6.2 °C
Niederschlag: 0.4 mm/24h
Sonnenschein: 1 h/d
Wind (Höhe 32m): 16.8 km/h

...more
This site makes use of cookies More information