Estudo da "Sphagnum auriculatum Schimp" na Moura Morta
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Vem isto a proposito da investigação feita a um tipo de musgo "à Sphagnum auriculatum Schimp" em que investigadores andaram por aqui ha ja uns anos na Moura Morta e na Ponte de Mucela.
Ora vejam como aparece aqui a nossa terra.
in Portugal with late Quaternary occurrences
Séneca, A.'; Sérgio, C.'; Queiróz, P.3 and Mateus, J.3
1. Instituto de Botanica Dr. Gonçalo S ampaio. Rua Campo Alegre, 1191. P-4100 Porto
2. Museu. Laboratório e Jardim Botanico. Faculdade de Ciencias. 1294, Lisboa Codex
3. Laboratório de Paleoecologia. Museu Nacional de Arqueologia. Lisboa
Key words:
Introduction
Portugal is very complex in terms of topography, orography and climate. Great
contrasts exist between the northern and southern parts, the river Tejo apparently
forming a flexible barrier in both climate and orography. Roughly, the
northern part is dominated by an'old granitic relief with sharp quartzitic crests,
very resistent to erosion, formed during the Paleozoic and oriented SW-NE.
The central coastal area is a stepwise plateau interrupted by river valleys, estuaries
or deltas, with very complex petrographic structure that includes limestone
elevations and sedimentary plains, originated in early Tertiary. The general climate
type of these areas is atlantic with precipitation rates that vary between
800 mmlyr in the central coastal range and 2800 mm/yr in the highest mountains.
In these regions there is a minimum of 75 days/yr with precipitation
rates greater than 1 mm.
Sphagnum has been collected in Portugal since 1843 by Welwitsch, though
the communities where it occurs were never studied thorougly, at least from
the bryophytic standpoint. The number of Sphagnum taxa in the country have
risen since 1987 (Séneca-Cardoso 1987) from 11 up to 17 after the most recent
taxonomic revisions and field work. S. auriculatum is the most common,
occupying all the areas capable of supporting plants with such ecological requisites.
These areas vary greatly in relation to macroclimate and ecological
variables. Where they attain the minimum values suitable for these plants to
live, S. auriculatum is, in most cases, the only Sphagnum species present. This
apparent ability to grow within large intervals of these variables inevitably leads
to its well known polymorphism (Suzuki 1958, Goossens & de Sloover 1981.
Daniels & Eddy 1985).
Sphagnum auriculatum Schimp. (sensu stricto). Specinens examined:
Aveiro, ribeiro de Azurva, NE39, 50 m, Reis, 71/09/12, LISU. BL, Eirol, ribeiro da Horta, NE39, 50 rn, Reis, 70/09/22,COI. BL, Eirol, Ribeira da Fonte, NE39,50 rn, Ormonde, 67/08/21, COI. BL, Eirol, Vale da Fonte,NE39,50 m, Ormonde, 67/08/07, COI. BL, Eixo, Vale dos Pinheiros, NE39,50 rn, Sérgio, 90/12/30,LISU. BL. Vale de Vila Pouca, NE44, 100 m, Ervideira, 21/08, LISU. BL, Bucha, Pateira de Fermentelos, NE49, Almeida & Nogueira, 69/08/07, COI. BL, Miranda do Como, NE53, 200 rn, Tamagnini, LISU. BL, Ponte de Mucela, Moura Morta, NE65, 100 m, 511892, COI BL, S. Joáo doMonte, Caramulo, NE69, 700 rn, Fernandes, Allorge & Sérgio, 65/06/24,
Ler mais ...
Vem isto a proposito da investigação feita a um tipo de musgo "à Sphagnum auriculatum Schimp" em que investigadores andaram por aqui ha ja uns anos na Moura Morta e na Ponte de Mucela.
Ora vejam como aparece aqui a nossa terra.
in Portugal with late Quaternary occurrences
Séneca, A.'; Sérgio, C.'; Queiróz, P.3 and Mateus, J.3
1. Instituto de Botanica Dr. Gonçalo S ampaio. Rua Campo Alegre, 1191. P-4100 Porto
2. Museu. Laboratório e Jardim Botanico. Faculdade de Ciencias. 1294, Lisboa Codex
3. Laboratório de Paleoecologia. Museu Nacional de Arqueologia. Lisboa
Key words:
Introduction
Portugal is very complex in terms of topography, orography and climate. Great
contrasts exist between the northern and southern parts, the river Tejo apparently
forming a flexible barrier in both climate and orography. Roughly, the
northern part is dominated by an'old granitic relief with sharp quartzitic crests,
very resistent to erosion, formed during the Paleozoic and oriented SW-NE.
The central coastal area is a stepwise plateau interrupted by river valleys, estuaries
or deltas, with very complex petrographic structure that includes limestone
elevations and sedimentary plains, originated in early Tertiary. The general climate
type of these areas is atlantic with precipitation rates that vary between
800 mmlyr in the central coastal range and 2800 mm/yr in the highest mountains.
In these regions there is a minimum of 75 days/yr with precipitation
rates greater than 1 mm.
Sphagnum has been collected in Portugal since 1843 by Welwitsch, though
the communities where it occurs were never studied thorougly, at least from
the bryophytic standpoint. The number of Sphagnum taxa in the country have
risen since 1987 (Séneca-Cardoso 1987) from 11 up to 17 after the most recent
taxonomic revisions and field work. S. auriculatum is the most common,
occupying all the areas capable of supporting plants with such ecological requisites.
These areas vary greatly in relation to macroclimate and ecological
variables. Where they attain the minimum values suitable for these plants to
live, S. auriculatum is, in most cases, the only Sphagnum species present. This
apparent ability to grow within large intervals of these variables inevitably leads
to its well known polymorphism (Suzuki 1958, Goossens & de Sloover 1981.
Daniels & Eddy 1985).
Sphagnum auriculatum Schimp. (sensu stricto). Specinens examined:
Aveiro, ribeiro de Azurva, NE39, 50 m, Reis, 71/09/12, LISU. BL, Eirol, ribeiro da Horta, NE39, 50 rn, Reis, 70/09/22,COI. BL, Eirol, Ribeira da Fonte, NE39,50 rn, Ormonde, 67/08/21, COI. BL, Eirol, Vale da Fonte,NE39,50 m, Ormonde, 67/08/07, COI. BL, Eixo, Vale dos Pinheiros, NE39,50 rn, Sérgio, 90/12/30,LISU. BL. Vale de Vila Pouca, NE44, 100 m, Ervideira, 21/08, LISU. BL, Bucha, Pateira de Fermentelos, NE49, Almeida & Nogueira, 69/08/07, COI. BL, Miranda do Como, NE53, 200 rn, Tamagnini, LISU. BL, Ponte de Mucela, Moura Morta, NE65, 100 m, 511892, COI BL, S. Joáo doMonte, Caramulo, NE69, 700 rn, Fernandes, Allorge & Sérgio, 65/06/24,
Ler mais ...
Briófitos
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Etiquetas: Cientistas, Investigadores, Moura Morta, Musgos
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