Conservation biology of three threatened Limonium species endemic to Zakynthos Island (Ionian Islands, Greece)

Knowledge of the life history traits, reproductive biology and demography of rare species is fundamental for their conservation, yet plant population monitoring is uncommon. The restricted ranges of the Limonium species endemic to the Mediterranean area, combined with the vulnerability of their spec...

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Main Authors: Anna-Thalassini Valli, Charikleia Papaioannou, Eleni Liveri, Vasileios Papasotiropoulos, Panayiotis Trigas
Format: Article
Language:English
Published: Cambridge University Press 2024-09-01
Series:Oryx
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Online Access:https://www.cambridge.org/core/product/identifier/S0030605324000140/type/journal_article
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author Anna-Thalassini Valli
Charikleia Papaioannou
Eleni Liveri
Vasileios Papasotiropoulos
Panayiotis Trigas
author_facet Anna-Thalassini Valli
Charikleia Papaioannou
Eleni Liveri
Vasileios Papasotiropoulos
Panayiotis Trigas
author_sort Anna-Thalassini Valli
collection DOAJ
description Knowledge of the life history traits, reproductive biology and demography of rare species is fundamental for their conservation, yet plant population monitoring is uncommon. The restricted ranges of the Limonium species endemic to the Mediterranean area, combined with the vulnerability of their specialized littoral habitats, indicate the need for appropriate conservation measures. We evaluate the conservation status and estimate the future extinction risk of three Limonium species endemic to Zakynthos Island in the Ionian Islands, Greece (Limonium korakonisicum, Limonium phitosianum and Limonium zacynthium) using 5 years of monitoring data. We compile information on their geographical distribution, population dynamics, reproductive biology and genetic diversity. Population sizes and survival rates of seedlings exhibited marked annual fluctuations, although fecundity and relative reproductive success remained high throughout the monitoring period. We observed a dominance of mature individuals in all three species, indicating their increased tolerance to salinity. Three subpopulations each of L. phitosianum and L. zacynthium were genotyped using five microsatellite loci. The observed number of alleles and the low gene flow value potentially indicate reduced genetic diversity, inbreeding, and limited gene flow within and among subpopulations of both species. Based on the IUCN categories and criteria, we assess L. korakonisicum as Critically Endangered, L. phitosianum as Near Threatened and L. zacynthium as Endangered. Population viability analyses predict that, among the three species, L. zacynthium will face the highest risk of extinction within the next 50 years. Knowledge of the biology of these species provides data essential for identifying critical factors for their survival and for proposing targeted conservation measures.
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spelling doaj-art-d75cfe1121d34d1c8463c73e0c3c5c9e2025-01-16T21:50:48ZengCambridge University PressOryx0030-60531365-30082024-09-015858759910.1017/S0030605324000140Conservation biology of three threatened Limonium species endemic to Zakynthos Island (Ionian Islands, Greece)Anna-Thalassini Valli0https://orcid.org/0000-0002-2085-1174Charikleia Papaioannou1https://orcid.org/0000-0002-9967-9361Eleni Liveri2https://orcid.org/0000-0002-8584-0927Vasileios Papasotiropoulos3https://orcid.org/0000-0002-0292-6793Panayiotis Trigas4https://orcid.org/0000-0001-9557-7723Laboratory of Systematic Botany, Department of Crop Science, Agricultural University of Athens, Athens, GreeceLaboratory of Genetics, Department of Biology, University of Patras, Patras, GreeceLaboratory of Botany, Department of Biology, University of Patras, Patras, GreeceLaboratory of Plant Breeding and Biometry, Department of Crop Science, Agricultural University of Athens, Athens, GreeceLaboratory of Systematic Botany, Department of Crop Science, Agricultural University of Athens, Athens, GreeceKnowledge of the life history traits, reproductive biology and demography of rare species is fundamental for their conservation, yet plant population monitoring is uncommon. The restricted ranges of the Limonium species endemic to the Mediterranean area, combined with the vulnerability of their specialized littoral habitats, indicate the need for appropriate conservation measures. We evaluate the conservation status and estimate the future extinction risk of three Limonium species endemic to Zakynthos Island in the Ionian Islands, Greece (Limonium korakonisicum, Limonium phitosianum and Limonium zacynthium) using 5 years of monitoring data. We compile information on their geographical distribution, population dynamics, reproductive biology and genetic diversity. Population sizes and survival rates of seedlings exhibited marked annual fluctuations, although fecundity and relative reproductive success remained high throughout the monitoring period. We observed a dominance of mature individuals in all three species, indicating their increased tolerance to salinity. Three subpopulations each of L. phitosianum and L. zacynthium were genotyped using five microsatellite loci. The observed number of alleles and the low gene flow value potentially indicate reduced genetic diversity, inbreeding, and limited gene flow within and among subpopulations of both species. Based on the IUCN categories and criteria, we assess L. korakonisicum as Critically Endangered, L. phitosianum as Near Threatened and L. zacynthium as Endangered. Population viability analyses predict that, among the three species, L. zacynthium will face the highest risk of extinction within the next 50 years. Knowledge of the biology of these species provides data essential for identifying critical factors for their survival and for proposing targeted conservation measures.https://www.cambridge.org/core/product/identifier/S0030605324000140/type/journal_articleIUCN criteriaLimoniumlittoral speciesMediterranean plantsmicrosatellitesmonitoringpopulation viability analysisZakynthos Island
spellingShingle Anna-Thalassini Valli
Charikleia Papaioannou
Eleni Liveri
Vasileios Papasotiropoulos
Panayiotis Trigas
Conservation biology of three threatened Limonium species endemic to Zakynthos Island (Ionian Islands, Greece)
Oryx
IUCN criteria
Limonium
littoral species
Mediterranean plants
microsatellites
monitoring
population viability analysis
Zakynthos Island
title Conservation biology of three threatened Limonium species endemic to Zakynthos Island (Ionian Islands, Greece)
title_full Conservation biology of three threatened Limonium species endemic to Zakynthos Island (Ionian Islands, Greece)
title_fullStr Conservation biology of three threatened Limonium species endemic to Zakynthos Island (Ionian Islands, Greece)
title_full_unstemmed Conservation biology of three threatened Limonium species endemic to Zakynthos Island (Ionian Islands, Greece)
title_short Conservation biology of three threatened Limonium species endemic to Zakynthos Island (Ionian Islands, Greece)
title_sort conservation biology of three threatened limonium species endemic to zakynthos island ionian islands greece
topic IUCN criteria
Limonium
littoral species
Mediterranean plants
microsatellites
monitoring
population viability analysis
Zakynthos Island
url https://www.cambridge.org/core/product/identifier/S0030605324000140/type/journal_article
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AT eleniliveri conservationbiologyofthreethreatenedlimoniumspeciesendemictozakynthosislandionianislandsgreece
AT vasileiospapasotiropoulos conservationbiologyofthreethreatenedlimoniumspeciesendemictozakynthosislandionianislandsgreece
AT panayiotistrigas conservationbiologyofthreethreatenedlimoniumspeciesendemictozakynthosislandionianislandsgreece