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Dead end for endemic plant species? : a biodiversity hotspot under pressure

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00004662
URN to cite this document: urn:nbn:de:bvb:703-epub-4662-8

Title data

Kidane, Yohannes ; Steinbauer, Manuel Jonas ; Beierkuhnlein, Carl:
Dead end for endemic plant species? : a biodiversity hotspot under pressure.
In: Global Ecology and Conservation. Vol. 19 (July 2019) . - No. e00670.
ISSN 2351-9894
DOI der Verlagsversion: https://doi.org/10.1016/j.gecco.2019.e00670

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Abstract

Tropical high mountains are hosting important hot spots of biodiversity on small mostly remote areas. Recently, these precious ecosystems are under threat from land use change and climate change coupled with other local drivers of biodiversity loss. Along the East African Afroalpine ecosystems, area above the treeline have experienced long-term spatial isolation and extreme climatic conditions (climatic factors such as low mean temperature, diurnal freeze-thaw cycles and other energy-related factors) which lead to the formation of ``Sky Island'' like ecosystems that are rich in endemics and unique. The Bale Mountains of Ethiopia are home to the largest tropical alpine plateau in Africa, with no spacious high summits that provide space for upward shift of species. Here, we studied plant species diversity and distribution patterns and tested potential future impacts of climate change induced warming on those patterns. This study is based on distribution data acquired from nested circular plots along an elevational gradient ranging from 2000m asl to the highest elevation (4385 m asl). We find hump shaped species richness patterns on both aspects, i.e. the dry north-eastern and the wet monsoon exposed south-western escarpment. In addition, the proportion of endemic species increases monotonically towards the summit on all slopes. Based on our data and literature, we project future climate impact for three regional warming scenarios (+2 degrees C, + 3 degrees C and + 4 degrees C). We quantify the future range of 114 endemic plant species based on their current occurrence records applying a lapse rate of 0.6 degrees C per 100 m of elevation. We find that future climate change would significantly alter species distribution patterns with pronounced impact on the unique ecosystems and endemic species restricted to the afroalpine plateau. Very likely this will be leading to the extinction of many endemic species. Published by Elsevier B.V.

Further data

Item Type: Article in a journal
Additional notes (visible to public): BAYCEER151831
ISI:000477695200023
DDC Subjects: 500 Science > 500 Natural sciences
500 Science > 570 Life sciences, biology
500 Science > 580 Plants (Botany)
Institutions of the University: Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Biogeography
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Biogeography > Chair Biogeography - Univ.-Prof. Dr. Carl Beierkuhnlein
Faculties > Faculty of Cultural Studies > Department of Sport Science > Professor Sport Ecology > Professor Sport Ecology - Univ.-Prof. Dr. Manuel Jonas Steinbauer
Profile Fields
Profile Fields > Advanced Fields
Profile Fields > Advanced Fields > Ecology and the Environmental Sciences
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties > Faculty of Cultural Studies
Faculties > Faculty of Cultural Studies > Department of Sport Science
Faculties > Faculty of Cultural Studies > Department of Sport Science > Professor Sport Ecology
Language: English
Originates at UBT: Yes
URN: urn:nbn:de:bvb:703-epub-4662-8
Date Deposited: 27 Mar 2020 12:01
Last Modified: 27 Mar 2020 12:01
URI: https://epub.uni-bayreuth.de/id/eprint/4662

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