6533b7defe1ef96bd1275f8a

RESEARCH PRODUCT

The alien vascular flora of Linosa (Pelagie Islands, Strait of Sicily): update and management proposals

Tommaso La MantiaSalvatore Livreri ConsoleEmilio BadalamentiGilberto ParoloSalvatore PastaNicola M. G. Ardenghi

subject

0106 biological sciencesBiotopeFlorageography.geographical_feature_categorySettore AGR/05 - Assestamento Forestale E SelvicolturaEcologyIntroduced speciesPlant ScienceAlienMediterranean islands risk assessment vegetation ecology landscape planning agroecosystems black lists Agave attenuata Boerhavia coccinea Campsis radicans Hylocereus undatus Plumbago auriculata Portulaca grandiflora Portulacaria afra010603 evolutionary biology01 natural sciencesGeographyHabitatArchipelagoNatura 2000Mediterranean IslandsEcology Evolution Behavior and Systematics010606 plant biology & botany

description

This paper provides an up-to-date overview of the naturalized alien plants of Linosa (Pelagie Archipelago, Sicily), which includes 83 taxa and accounts for 29 % of the total island's flora. Among these plants, 6 are invasive, 49 are naturalized and 28 are casual. With respect to previous available data, our field investigations resulted in the addition of 31 new xenophytes (21 casual and 10 fully naturalized). One of these species is new to the whole European territory (Kleinia anteuphorbia), 6 of them are new to Sicily and 11 are recorded for the first time on circum-Sicilian islets. For each alien plant, we indicate the habitat where the naturalization has been observed by using the codes proposed by Natura 2000 and Corine Biotopes habitat classification. We also provide a list of 159 alien plants that are cultivated in Linosa, but currently not naturalized, in order to underline the key role played by horticulture and gardening in the introduction of exotic species. In order to address this phenomenon and its huge impact on the integrity of both the natural and the traditional rural landscape, several actions are proposed that aim at preventing, controlling and monitoring both the ongoing and the potential invasion processes.Citation: Pasta S., Ardenghi N. M. G., Badalamenti E., La Mantia T., Livreri Console S. & Parolo G. 2017: The alien vascular flora of Linosa (Pelagie Islands, Strait of Sicily): update and management proposals. — Willdenowia 47: 135–144. doi: https//doi.org/10.3372/wi.47.47205Version of record first published online on 13 July 2017 ahead of inclusion in August 2017 issue.

10.3372/wi.47.47205http://hdl.handle.net/10447/246754