Alien flora of Oman : invasion status, taxonomic composition, habitats, origin, and pathways of introduction

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2022
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Patzelt, Annette
Pysek, Petr
Pergl, Jan
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Biological Invasions. Springer. 2022, 24(4), pp. 955-970. ISSN 1387-3547. eISSN 1573-1464. Available under: doi: 10.1007/s10530-021-02711-4
Zusammenfassung

We present the first inventory and status assessment of the alien flora of Oman, mainly based on field data collected from 1998 to 2021. The study provides (i) a comprehensive account of alien vascular plant species occurring in the wild in Oman, with information on their taxonomic composition. For each species information is given on (ii) invasion status (casual, naturalized or invasive), biogeography, habitat and life-form characteristics, and pathways of introduction. Further, we (iii) explain the differences in the alien species composition in different parts of the country, and (iv) analyse the drivers of plant invasions in Oman. Out of the 111 alien species reported (7.7% of the total Oman vascular flora), 34 species are casuals and 77 naturalized; of the latter seven are considered invasive. The moderate number of alien plant species is likely a result of the country’s arid climate, with extremely high summer temperatures and low annual precipitation in most of its area, and the relatively long isolation of the country. The families richest in alien plant species are Fabaceae (17 species), Asteraceae (14 species) and Poaceae (12 species). More alien plants were found in northern Oman (82 species) than in southern Oman (60 species), and very few species are recorded from the central desert (7 species). The main habitats colonized were man-made habitats, either ruderal or agricultural. Most species alien to Oman are native to South America (49 species) or North America (43 species). This inventory provides a knowledge base for developing a national management strategy for alien vascular plants in Oman.

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Fachgebiet (DDC)
570 Biowissenschaften, Biologie
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Exotic species, non-native species, tracheophytes, invasiveness
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ISO 690PATZELT, Annette, Petr PYSEK, Jan PERGL, Mark VAN KLEUNEN, 2022. Alien flora of Oman : invasion status, taxonomic composition, habitats, origin, and pathways of introduction. In: Biological Invasions. Springer. 2022, 24(4), pp. 955-970. ISSN 1387-3547. eISSN 1573-1464. Available under: doi: 10.1007/s10530-021-02711-4
BibTex
@article{Patzelt2022-04Alien-56108,
  year={2022},
  doi={10.1007/s10530-021-02711-4},
  title={Alien flora of Oman : invasion status, taxonomic composition, habitats, origin, and pathways of introduction},
  number={4},
  volume={24},
  issn={1387-3547},
  journal={Biological Invasions},
  pages={955--970},
  author={Patzelt, Annette and Pysek, Petr and Pergl, Jan and van Kleunen, Mark}
}
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