Niche Differentiation at Multiple Spatial Scales on Large and Small Mediterranean Islands for the Endemic <i>Silene velutina</i> Pourr. ex Loisel. (Caryophyllaceae)

The aim of this work is to investigate niche variations in endemic <i>Silene velutina</i> (Caryophyllaceae, Angiosperms) on Mediterranean islands that differ in size. Six populations on both large and small islands were sampled across the geographic range of the species. For each populat...

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Autores principales:	Valentina Murru, Emmanuele Farris, Andrea Santo, Oscar Grillo, Carole Piazza, Antonella Gaio, Gianluigi Bacchetta, John D. Thompson
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	demographic strategies ecological release endemism niche variation persistence niche plant population dynamics Botany QK1-989
Acceso en línea:	https://doaj.org/article/02f87be5eca048febcf45312c075b5b0
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spelling	oai:doaj.org-article:02f87be5eca048febcf45312c075b5b02021-11-25T18:44:59ZNiche Differentiation at Multiple Spatial Scales on Large and Small Mediterranean Islands for the Endemic <i>Silene velutina</i> Pourr. ex Loisel. (Caryophyllaceae)10.3390/plants101122982223-7747https://doaj.org/article/02f87be5eca048febcf45312c075b5b02021-10-01T00:00:00Zhttps://www.mdpi.com/2223-7747/10/11/2298https://doaj.org/toc/2223-7747The aim of this work is to investigate niche variations in endemic <i>Silene velutina</i> (Caryophyllaceae, Angiosperms) on Mediterranean islands that differ in size. Six populations on both large and small islands were sampled across the geographic range of the species. For each population, 10 plots (1 × 2 m, with a 25 cm grill) were randomly placed to quantify environmental (abiotic and biotic factors and disturbance) and population (demographic structure and reproductive success) parameters. Niche parameters related to substrate, plant cover, community diversity and composition and disturbance showed significant variation in relation to island size. At the regional scale, we detected a broader niche on large islands associated with spatial heterogeneity and island size. In contrast, at the local scale, populations on small islands showed a broader niche, potentially due to a release from competition (low diversity and plant cover and absence of phanerophytes). Populations on large islands had a demographic structure biased towards vegetative individuals (seedlings and juveniles) with few reproductive individuals, while those on small islands had a majority of adults. Together, the results on niche breadth and demographic structure concord with the idea of a strategy based on adult persistence on small islands.Valentina MurruEmmanuele FarrisAndrea SantoOscar GrilloCarole PiazzaAntonella GaioGianluigi BacchettaJohn D. ThompsonMDPI AGarticledemographic strategiesecological releaseendemismniche variationpersistence nicheplant population dynamicsBotanyQK1-989ENPlants, Vol 10, Iss 2298, p 2298 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	demographic strategies ecological release endemism niche variation persistence niche plant population dynamics Botany QK1-989
spellingShingle	demographic strategies ecological release endemism niche variation persistence niche plant population dynamics Botany QK1-989 Valentina Murru Emmanuele Farris Andrea Santo Oscar Grillo Carole Piazza Antonella Gaio Gianluigi Bacchetta John D. Thompson Niche Differentiation at Multiple Spatial Scales on Large and Small Mediterranean Islands for the Endemic <i>Silene velutina</i> Pourr. ex Loisel. (Caryophyllaceae)
description	The aim of this work is to investigate niche variations in endemic <i>Silene velutina</i> (Caryophyllaceae, Angiosperms) on Mediterranean islands that differ in size. Six populations on both large and small islands were sampled across the geographic range of the species. For each population, 10 plots (1 × 2 m, with a 25 cm grill) were randomly placed to quantify environmental (abiotic and biotic factors and disturbance) and population (demographic structure and reproductive success) parameters. Niche parameters related to substrate, plant cover, community diversity and composition and disturbance showed significant variation in relation to island size. At the regional scale, we detected a broader niche on large islands associated with spatial heterogeneity and island size. In contrast, at the local scale, populations on small islands showed a broader niche, potentially due to a release from competition (low diversity and plant cover and absence of phanerophytes). Populations on large islands had a demographic structure biased towards vegetative individuals (seedlings and juveniles) with few reproductive individuals, while those on small islands had a majority of adults. Together, the results on niche breadth and demographic structure concord with the idea of a strategy based on adult persistence on small islands.
format	article
author	Valentina Murru Emmanuele Farris Andrea Santo Oscar Grillo Carole Piazza Antonella Gaio Gianluigi Bacchetta John D. Thompson
author_facet	Valentina Murru Emmanuele Farris Andrea Santo Oscar Grillo Carole Piazza Antonella Gaio Gianluigi Bacchetta John D. Thompson
author_sort	Valentina Murru
title	Niche Differentiation at Multiple Spatial Scales on Large and Small Mediterranean Islands for the Endemic <i>Silene velutina</i> Pourr. ex Loisel. (Caryophyllaceae)
title_short	Niche Differentiation at Multiple Spatial Scales on Large and Small Mediterranean Islands for the Endemic <i>Silene velutina</i> Pourr. ex Loisel. (Caryophyllaceae)
title_full	Niche Differentiation at Multiple Spatial Scales on Large and Small Mediterranean Islands for the Endemic <i>Silene velutina</i> Pourr. ex Loisel. (Caryophyllaceae)
title_fullStr	Niche Differentiation at Multiple Spatial Scales on Large and Small Mediterranean Islands for the Endemic <i>Silene velutina</i> Pourr. ex Loisel. (Caryophyllaceae)
title_full_unstemmed	Niche Differentiation at Multiple Spatial Scales on Large and Small Mediterranean Islands for the Endemic <i>Silene velutina</i> Pourr. ex Loisel. (Caryophyllaceae)
title_sort	niche differentiation at multiple spatial scales on large and small mediterranean islands for the endemic <i>silene velutina</i> pourr. ex loisel. (caryophyllaceae)
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/02f87be5eca048febcf45312c075b5b0
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Niche Differentiation at Multiple Spatial Scales on Large and Small Mediterranean Islands for the Endemic <i>Silene velutina</i> Pourr. ex Loisel. (Caryophyllaceae)

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