Why is the geographic distribution of Tillandsia recurvata (l.) L. (Bromeliaceae) expanding to the south?

Background and aims: The geographical distribution of Tillandsia recurvata (L.) L. ranges from the southern United States to the center of the Argentine Republic. The aim of this work is to report the presence of this species 200 km south of its known distribution and to d...

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Found in: Portal de Revistas
Main Authors: Apodaca, María José, Guerrero, Elián Leandro
Format: Online
Language: spa
Published: Sociedad Argentina de Botánica 2019
Online Access: https://revistas.unc.edu.ar/index.php/BSAB/article/view/24371
Summary: Background and aims: The geographical distribution of Tillandsia recurvata (L.) L. ranges from the southern United States to the center of the Argentine Republic. The aim of this work is to report the presence of this species 200 km south of its known distribution and to discuss the causes that may have led to this range expansion.M & M: Specimens were collected in different locations in the province of BuenosAires. Herbaria collections, on-line databases and bibliography were analyzed tocorroborate the taxonomic identification and the distribution limit of the species. Results: We present novel records of Tillandsia recurvata that extend its geographic distribution 200 km towards the South, being the locality of Tandil the southernmost  site of occurrence. Conclusions: Because the dates of collection and observations are recent, weconsider that this advance occurred in the last decades. Possible causes are discussed such as climate change and lignification of the Pampas.