Global distribution patterns and niche modelling of the invasive Kalanchoe × houghtonii (Crassulaceae)
Herrando-Moraira, Sonia (Institut Botànic de Barcelona)
Vitales, Daniel (Institut Botànic de Barcelona)
Nualart, Neus (Institut Botànic de Barcelona)
Gómez-Bellver, Carlos (Universitat de Barcelona. Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals)
Ibáñez, Neus (Institut Botànic de Barcelona)
Massó, Sergi (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)
Cachón-Ferrero, Pilar (Institut Botànic de Barcelona)
González Gutiérrez, Pedro Alejandro (Centro de Investigaciones y Servicios Ambientales de Holguín)
Guillot, Daniel (Hortax. Cultivated Plant Taxonomy Group)
Herrera, Ileana (National Institute of Biodiversity. Department of Botany)
Shaw, Daniel (Bangor University. School of Natural Sciences)
Stinca, Adriano (University of Campania Luigi Vanvitelli. Department of Environmental, Biological and Pharmaceutical Sciences and Technologies)
Wang, Zhiqiang (Chengdu University. Institute for Advanced Study)
López-Pujol, Jordi (Institut Botànic de Barcelona)

Data:	2020
Resum:	Invasive alien species are currently considered one of the main threats to global biodiversity. One of the most rapidly expanding invasive plants in recent times is Kalanchoe × houghtonii (Crassulaceae), an artificial hybrid created in the 1930s in the United States by experimental crossings between K. daigremontiana and K. tubiflora, two species endemic to Madagascar. Thanks to its large colonizing capacity (mainly derived from the production of asexual plantlets), K. × houghtonii soon escaped from cultivation and quickly spread in many parts of the world. However, its actual range is not well known due to the lack of a formal description until recent times (2006) and its strong morphological resemblance with one of its parentals (K. daigremontiana). The present study was aimed, in the first instance, to delimit the present distribution area of K. × houghtonii at the global scale by gathering and validating all its occurrences and to track its colonization history. Currently, K. × houghtonii can be found on all continents except Antarctica, although it did not reach a global distribution until the 2000s. Its potential distribution, estimated with MaxEnt modelling software, is mainly centered in subtropical regions, from 20° to 40° of both northern and southern latitudes, mostly in areas with a high anthropogenic activity. Unexpectedly, concomitant to a poleward migration, future niche models suggest a considerable reduction of its range by up to one-third compared to the present, which might be related with the Crassulaceaean Acid Metabolism (CAM) of K. × houghtonii. Further research may shed light as to whether a decrease in potential habitats constitutes a general pattern for Crassulaceae and CAM plants.
Ajuts:	Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-514 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-1116
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Invasive species
Publicat a:	Scientific reports, Vol. 10 (February 2020) , art. 3143, ISSN 2045-2322

DOI: 10.1038/s41598-020-60079-2
PMID: 32081991

18 p, 2.9 MB

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