Costa, José Carlos

Deil, U.

Espírito-Santo, Maria Dalila

Molina, J.

Pinto-Cruz, C.

Ribeiro, S.

Silva, V.

English

Universidade Técnica de Lisboa

Patterns of Isoeto-Nanojuncetea communities in Iberian Peninsula

UTL Repository

Patterns of Isoeto-Nanojuncetea communities in Iberian Peninsula  Ribeiro, S.a, Silva, V.b, Pinto-Cruz, C.c, Costa, J. C.a, Espírito-Santo, M. D.a, Molina, J. A.d & Deil, U. e  1 LEAF- Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia,Tapada da Ajuda, 1349-017 Lisbon, Portugal. silvia.sbenedita@gmail.com, 2 Centre for Applied Ecology Prof. Baeta Neves, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisbon, Portugal, 3 Escola de Ciências e Tecnologia, Instituto de Ciências Agrárias e Ambientais Mediterrânicas, Universidade de Évora, Núcleo da Mitra, 7002-554 Évora, Portugal, 4 Department of Plant Biology II, Complutense University of  Madrid, E-28040 Madrid, Spain.e Department of Geobotany,  5 Faculty of Biology, Schänzlestr. 1, 79104 Freiburg, Germany.  Abstract  Questions: What are the main community types of Isoteo–Nanojuncetea class in the Iberian Peninsula? How does current phytosociological classification match with classified community types? Which are their main diagnostic species? Which communities correspond natural habitats listed under Habitats Directive?   Location: Iberian Peninsula (c.a. 582 000 Km2). Methods: An initial data set of 786 relevés assigned to the Isoeto-Nanojuncetea was compiled and analyzed with Modified TWINSPAN, checking crispness of classification. Plant community types were recognized and diagnostic species were obtained by fidelity through the coefficient Phi.  Results: The classification revealed a clear differentiation of Isoetetalia and Nanocyperetalia orders. We obtain 34 clusters which differentiate communities according to the moisture gradient and biogeographic factors. Seven alliances were clearly recognized: Isoetion, Menthion cervinae, Agrostion pourretii and Cicendion (from Isoetalia); Nanocyperion flavescentis, Verbenion supinae and Lythrion tribacteati (from Nanocyperetalia). The Cicendion and Lythrion tribacteati are clearly separated from all the other alliances. Diagnostic species were obtained for the well-represented community types. Most of these communities correspond to habitats 3110, 3120, 3130 and 3170 priority habitat under the Habitat Directive. Conclusions: Despite some groups of communities reveal some biogeographic separation, traditional classification of other communities could be simplified. We suggest the use of diagnostic species for clear differentiation between habitat types. Diagnostic species can be used to unequivocally identify natural habitat types in a practical way.   Keywords: Classification, Diagnostic species, Ephemeral Wetlands, Habitat types, Syntaxonomy.  

https://www.repository.utl.pt/bitstream/10400.5/14387/1/REP-9-2016_Abstract_Isoeto_EVS_def-1.pdf

Patterns of Isoeto-Nanojuncetea communities in Iberian Peninsula

Abstract

Similar works

Full text

Available Versions

Universidade Técnica de Lisboa

UTL Repository