Aquatic and Wetland Vegetation of the Iberian Peninsula

Molina, José Antonio

doi:10.1007/978-3-319-54867-8_7

Cited by 6 publications

(9 citation statements)

References 23 publications

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“…The southern limit of the distribution of the Oxycocco‐Sphagnetea class extends from northern Portugal through northern Spain, the Pyrenees, France, the southern Alps, Hungary, the southern Carpathians, northern Ukraine and central parts of European Russia up to the southern Urals. This limit corresponds well with the bog occurrences reported in local studies and national phytosociological checklists (Coldea, 1997; Borhidi et al, 1999; Yamalov et al, 2012; Biondi et al, 2014; Molina, 2017). Hájek et al (2008) also reported the presence of a pine bog woodland of the Oxycocco‐Sphagnetea class in the Rhodope Mountains in Bulgaria.…”

Section: Discussionsupporting

confidence: 87%

Classification of European bog vegetation of the Oxycocco‐Sphagnetea class

Jiroušek

Peterka

Chytrý

et al. 2022

Applied Vegetation Science

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Aims Classification of European bog vegetation (Oxycocco‐Sphagnetea class); identification of diagnostic species for the class and vegetation subgroups (orders and alliances); development of an expert system for automatic classification of vegetation plots; and production of distribution maps of the Oxycocco‐Sphagnetea class and its alliances. Location Europe. Methods A data set of vegetation‐plot records was compiled to include various bog types over most of the European continent. An unsupervised classification (beta‐flexible linkage method, Sørensen distance measure) and detrended correspondence analysis (DCA) ordination were applied. Formal definitions of syntaxa based on species presence and covers, and respecting the results of the unsupervised classification, were developed and included in a classification expert system. Results The Oxycocco‐Sphagnetea class, its two orders (Sphagno‐Ericetalia tetralicis and Sphagnetalia medii) and seven compositionally distinct alliances were formally defined. In addition to the syntaxa included in EuroVegChecklist, three new alliances were distinguished: Rubo chamaemori‐Dicranion elongati (subarctic polygon and palsa mires); Erico mackaianae‐Sphagnion papillosi (blanket bogs of the northwestern Iberian Peninsula); and Sphagno baltici‐Trichophorion cespitosi (boreal bog lawns). The latter alliance is newly described in this article. Conclusions This first pan‐European formalized classification of European bog vegetation partially followed the system presented in EuroVegChecklist, but suggested three additional alliances. One covers palsa and polygon mires, one covers Iberian bogs with endemics and one fills the syntaxonomical gap for lawn microhabitats in boreal bogs. A classification expert system has been developed, which allows assignment of vegetation plots to the types described.

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Section: Discussionsupporting

confidence: 87%

Classification of European bog vegetation of the Oxycocco‐Sphagnetea class

Jiroušek

Peterka

Chytrý

et al. 2022

Applied Vegetation Science

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“…Soft-water vegetation in the Iberian mountains (Littorellion) encompasses isoetid vegetation growing in clear, permanent, oligotroph-ic, carbon-deficient and low-alkalinity waters, within which Isoetes velata subsp. asturicense has been cited as characteristic species in the NW ranges of the Iberian Hesperic Massif (Molina et al 1999, Molina 2017 usually at glacial lake shores (Prada 1986). On the other hand, Isoetes velata subsp.…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, Isoetes velata subsp. velata occurs in Mediterranean Ibero-Atlantic temporary waters (Isoetion, Isoeto-Nanojuncetea) forming part of ephemeral amphibious vegetation consisting of therophytes and geophytes (Molina 2005;Molina 2017). The type form lives in shallow fresh water ponds and lakes.…”

Section: Introductionmentioning

confidence: 99%

Habitat differentiation and geographic separation of Isoetes velata populations in central Iberian Peninsula

Molina¹

2021

Bot. Complut.

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Populations of Isoetes velata were studied in order to provide more information on their habitat and distribution in the Western and Northwestern Iberian Peninsula. Habitat together with morphology of megaspores were used as diagnostic features. The form I. velata subsp. velata f. lereschii is considered here as a synonym of I. velata subsp. asturicense and therefore only two taxa remain within the species: I. velata subsp. velata and I. velata subsp. asturicense. Intermediate individuals have been found in the Western Central System. The differentiation within the I. velata group appears to be the result of gradual genetic divergence after isolation. Palaeobotanical data confirm the presence of I. velata subsp. asturicense in Late Glacial lake sediments in northwestern Spain. Cluster classification of the soft-water vegetation with Isoetes velata subsp. asturicense revealed two main groups in the Spanish Central System. A single association, the Sparganio angustifolii-Callitrichetum fontqueri which includes Iberian Atlantic stands of Sparganium angustifolium and Isoetes velata subsp. asturicense, is here recognized. Besides, a variant of the association with Eleocharis acicularis is identified in shallow temporary waters in the Western Sierra de Gredos.

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“…The vegetation of this habitat is thus subject to extreme variability in local ecological conditions, resulting in a particular ora with a predominance of annual species and a long-lived seed bank (Brock et al 2003). There has thus been much interest in the diversity of species and their strategies in the communities of Mediterranean temporary pools (Deil 2005;Pinto-Cruz et al 2009;Molina 2017). Although it is clear that ecological variables determine spatial and seasonal variation in the composition of plant communities in Mediterranean temporary pools (Bonis et al 1995;Rhazi et al 2009;Vogiatzakis et al 2009;Caria et al 2013;Rocarpin et al 2015), the processes underlying the coexistence of closely related species in this ecosystem have received little attention other than a study of the genus Lasthenia in vernal pools of California by Emery et al (2012).…”

Section: Introductionmentioning

confidence: 99%