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Graminoid Invasion in an Insular Endemism Hotspot and its Protected Areas

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00004683
URN to cite this document: urn:nbn:de:bvb:703-epub-4683-4

Title data

Walentowitz, Anna J. ; Irl, Severin D. H. ; Acevedo Rodríguez, Aurelio Jesús ; Palomares-Martínez, Ángel ; Vetter, Vanessa ; Zennaro, Barbara ; Medina, Félix M. ; Beierkuhnlein, Carl:
Graminoid Invasion in an Insular Endemism Hotspot and its Protected Areas.
In: Diversity. Vol. 11 (2019) Issue 10 . - No. 192.
ISSN 1424-2818
DOI der Verlagsversion: https://doi.org/10.3390/d11100192

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Abstract

Invasive plant species are increasingly altering species composition and the functioning of ecosystems from a local to a global scale. The grass species Pennisetum setaceum has recently raised concerns as an invader on different archipelagos worldwide. Among these affected archipelagos are the Canary Islands, which are a hotspot of endemism. Consequently, conservation managers and stakeholders are interested in the potential spreading of this species in the archipelago. We identify the current extent of the suitable habitat for P. setaceum on the island of La Palma to assess how it affects island ecosystems, protected areas (PAs), and endemic plant species richness. We recorded in situ occurrences of P. setaceum from 2010 to 2018 and compiled additional ones from databases at a 500 m × 500 m resolution. To assess the current suitable habitat and possible distribution patterns of P. setaceum on the island, we built an ensemble model. We projected habitat suitability for island ecosystems and PAs and identified risks for total as well as endemic plant species richness. The suitable habitat for P. setaceum is calculated to cover 34.7% of the surface of La Palma. In open ecosystems at low to mid elevations, where native ecosystems are already under pressure by land use and human activities, the spread of the invader will likely lead to additional threats to endemic plant species. Forest ecosystems (e.g., broadleaved evergreen and coniferous forests) are not likely to be affected by the spread of P. setaceum because of its heliophilous nature. Our projection of suitable habitat of P. setaceum within ecosystems and PAs on La Palma supports conservationists and policymakers in prioritizing management and control measures and acts as an example for the potential threat of this graminoid invader on other islands.

Further data

Item Type: Article in a journal
Additional notes (visible to public): BAYCEER153839
DDC Subjects: 500 Science > 500 Natural sciences
500 Science > 550 Earth sciences, geology
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
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Language: English
Originates at UBT: Yes
URN: urn:nbn:de:bvb:703-epub-4683-4
Date Deposited: 27 Mar 2020 10:29
Last Modified: 27 Mar 2020 10:30
URI: https://epub.uni-bayreuth.de/id/eprint/4683

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