Temporal turnover of the flora of lake islands: The island of Lake Pamvotis (Epirus, Greece)

By

Sarika, Maria
Papanikolaou, Alexandros
Yannitsaros, Artemios
Chitos, Theodoros
Panitsa, Maria

Type

Article

Date of Publication

2019-08-21

Original Publication

Biodiversity data journal

Volume

7

Pages

1--24

Subjects

island diversity , Lake of Ioannina , Monitoring , Plant Diversity , protected area , turnover rate

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia Pensoft Publishers [2013]-

Identifiers

DOI: https://doi.org/10.3897/BDJ.7.e37023
eLocator: e37023

 

Abstract

Lake Pamvotis is one of the Balkan 'ancient' lakes, a Quaternary refugium of great environmental importance and ecological value, that is under various anthropogenic pressures. It belongs to a Natura 2000 Special Area for Conservation and Special Protection Area. Almost in the middle of the lake, there is an inhabited island - one of the two lake islands in Greece – that also attracts touristic interest. Τhe main objectives of the present study are to provide a floristic inventory of the protected island, combining data of two different sampling periods, within a 25 year interval, in order to estimate temporal beta diversity and species turnover of the island’s plant diversity. The value of the absolute and relative turnover rates of the floristic diversity of the island studied are 4.24 and 1.72, respectively and are amongst the higher rates reported for plants. The absolute difference between extinct (E) and immigrant (l) taxa is to a great extent accounted, concerning life forms, by therophytes (1.86), hemicryptophytes (1.56) and geophytes (1.04) and, for habitats, by taxa preferring agricultural and ruderal forms (2.52).