996 resultados para Africa, Western


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Espírito Santo State lies in the transition region (18°-21° S) between the tropical and subtropical marine-algal provinces and is considered the richest area of the Brazilian flora. The subtidal substratum presents extensive areas of rhodoliths associated with a diversified marine biota. A detailed exploration using Scuba diving technique has revealed many little-known and previously unreported taxa that are new to the Brazilian coast. Among the algae recently discovered, Reticulocaulis mucosissimus I. A. Abbott was found at a depth of 25 meters, thus consisting of the second member of the infrequently encountered family Naccariaceae growing in the same region. This work has revealed additional distribution records of this species not yet reported from the western Atlantic. Description of the morphological and reproductive features of the species as well as illustrations and comments are presented.

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We evaluated the floristic relationships among 20 swamp forests of Southeastern and Central-Western Brazil using multivariate analyses. Detrended correspondence analysis (DCA) and TWINSPAN (Two way indicator species analysis) indicated two distinct floristic groups among forests, according to the Phytogeographic Province (Paranaense or Cerrado) and their climate conditions, phytophysiognomies, and species composition. Within the same province, edaphic conditions and geographical distance, among other factors, may be responsible for similarities or dissimilarities among the forests floras. Our results indicated that, despite the low a diversity, γ diversity is high among the forests, as a result of the low floristic similarities among the remnants and the high number of unique species (55% of all species). Although floristically distinct, we concluded that the inland swamp forests of Southeastern Brazil and the gallery swamp forests of Central Brazil are part of the same forest formation. These forests have in common, in addition to the swampy environment, low plant species diversity and species that have high local densities, such as Calophyllum brasiliense Cambess., Cecropia pachystachya Trécul, Dendropanax cuneatus Decne. & Planch., Guarea macrophylla Vahl, Magnolia ovata (A. St.-Hil.) Spreng., Protium spruceanum (Benth.) Engl. and Tapirira guianensis Aubl.

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Julkaisussa: Cosmographia : Beschreibung aller Lender durch Sebastianum Munsterum in welcher begriffen

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Julkaisussa: L'Atlas de la mer, ou monde aquaticque

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Julkaisussa: L'Atlas de la mer, ou monde aquaticque

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Julkaisussa: Geografia cioè descrittione universale della terra : partita in due volumi

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Julkaisussa: De zee-atlas ofte water-waereld, vertoonende alle de zee-kusten van het bekende deel des aerd-bodems, met een generale bechrijvinge van dien

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Julkaisussa: Terzo volume delle navigationi et viaggi raccolto gia da M. Gio. Battista Ramusio nel quale si contengono

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Julkaisussa: Geographia universalis, vetus et nova, complectens Claudii Ptolemaei Alexandrini enarrationis libros VIII

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Kartta kuuluu A. E. Nordenskiöldin kokoelmaan

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Kartta kuuluu A. E. Nordenskiöldin kokoelmaan

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Kartta kuuluu A. E. Nordenskiöldin kokoelmaan