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Tourism and urban development as drivers for invertebrate diversity loss on tropical islands

Title data

Steibl, Sebastian ; Franke, Jonas ; Laforsch, Christian:
Tourism and urban development as drivers for invertebrate diversity loss on tropical islands.
In: Royal Society Open Science. Vol. 8 (2021) Issue 10 . - No. 210411.
ISSN 2054-5703
DOI: https://doi.org/10.1098/rsos.210411

Abstract in another language

Oceanic islands harbour a disproportionately high number of endemic and threatened species. Rapidly growing human populations and tourism are posing an increasing threat to island biota, yet the ecological consequences of these human land uses on small oceanic island systems have not been quantified. Here, we investigated and compared the impact of tourism and urban island development on ground-associated invertebrate biodiversity and habitat composition on oceanic islands. To disentangle tourism and urban land uses, we investigated Indo-Pacific atoll islands, which either exhibit only tourism or urban development, or remain uninhabited. Within the investigated system, we show that species richness, abundance and Shannon diversity of the investigated invertebrate community are significantly decreased under tourism and urban land use, relative to uninhabited islands. Remote-sensing-based spatial data suggest that habitat fragmentation and a reduction in vegetation density are having significant effects on biodiversity on urban islands, whereas land use/cover changes could not be linked to the documented biodiversity loss on tourist islands. This offers the first direct evidence for a major terrestrial invertebrate loss on remote oceanic atoll islands due to different human land uses with yet unforeseeable long-term consequences for the stability and resilience of oceanic island ecosystems.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: Human land use; Habitat loss; Invertebrate decline; Small island states; Remote sensing; Atolls
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Animal Ecology I > Chair Animal Ecology I - Univ.-Prof. Dr. Christian Laforsch
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 570 Life sciences, biology
500 Science > 590 Animals (Zoology)
Date Deposited: 18 Oct 2021 08:42
Last Modified: 18 Oct 2021 08:42
URI: https://eref.uni-bayreuth.de/id/eprint/67361