Floristic homogenization of South Pacific islands commenced with human arrival
Strandberg, Nichola A. ![Identificador ORCID](/img/uab/orcid.ico)
(University of Southampton)
Steinbauer, Manuel J. ![Identificador ORCID](/img/uab/orcid.ico)
(University of Bayreuth)
Walentowitz, Anna ![Identificador ORCID](/img/uab/orcid.ico)
(University of Bayreuth)
Gosling, William D. ![Identificador ORCID](/img/uab/orcid.ico)
(University of Amsterdam)
Fall, Patricia L. ![Identificador ORCID](/img/uab/orcid.ico)
(The University of North Carolina at Charlotte)
Prebble, Matiu ![Identificador ORCID](/img/uab/orcid.ico)
(University of Canterbury)
Stevenson, Janelle
(Australian National University)
Wilmshurst, Janet M.
(Manaaki Whenua - Landcare Research)
Sear, David A.
(University of Southampton)
Langdon, Peter G.
(University of Southampton)
Edwards, Mary E. (University of Southampton)
Nogué Bosch, Sandra
(Centre de Recerca Ecològica i d'Aplicacions Forestals)
Universitat Autònoma de Barcelona.
Temporal Ecology and Biogeography Lab
Data: |
2024 |
Resum: |
The increasing similarity of plant species composition among distinct areas is leading to the homogenization of ecosystems globally. Human actions such as ecosystem modification, the introduction of non-native plant species and the extinction or extirpation of endemic and native plant species are considered the main drivers of this trend. However, little is known about when floristic homogenization began or about pre-human patterns of floristic similarity. Here we investigate vegetation trends during the past 5,000 years across the tropical, sub-tropical and warm temperate South Pacific using fossil pollen records from 15 sites on 13 islands within the biogeographical realm of Oceania. The site comparisons show that floristic homogenization has increased over the past 5,000 years. Pairwise Bray-Curtis similarity results also show that when two islands were settled by people in a given time interval, their floristic similarity is greater than when one or neither of the islands were settled. Importantly, higher elevation sites, which are less likely to have experienced human impacts, tended to show less floristic homogenization. While biotic homogenization is often referred to as a contemporary issue, we have identified a much earlier trend, likely driven by human colonization of the islands and subsequent impacts. |
Ajuts: |
European Commission 101045309
|
Drets: |
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Llengua: |
Anglès |
Document: |
Article ; recerca ; Versió publicada |
Matèria: |
Beta-diversity ;
Biodiversity ;
Biotic homogenization ;
Dispersal ;
Extinctions ;
Human settlement ;
Lowland rain-forest ;
Oceanic islands ;
Patterns ;
Vegetation |
Publicat a: |
Nature ecology & evolution, Vol. 8, Issue 3 (March 2024) , p. 511-518, ISSN 2397-334X |
DOI: 10.1038/s41559-023-02306-3
PMID: 38225430
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Registre creat el 2024-07-11, darrera modificació el 2024-07-19