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Registros recuperados: 10 | |
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Rindi, F; Maltagliati, F; Rossi, F; Acunto, S; Cinelli, F. |
Halophila stipulacea, a seagrass introduced into the Mediterranean Sea as a Lessepsian immigrant, is nowadays common in the eastern Mediterranean, and it was recently recorded in the western Mediterranean; very little information is available about the algal flora associated with this species. During a survey of a Halophila stipulacea stand at Vulcano Island (Eolian Islands, western Mediterranean), samples were collected at three depths (5 m, 15 m and 25 m) for identification of algal epiphytes. Thirty-six species of macroalgae were found. The epiflora of the leaves consisted of 20 species, the others being mixed with or entangled in the rhizomes. On the leaves, Ceramium tenerrimum, Dasya corymbifera, Polysiphonia cfr. tenerrima, Spyridia filamentosa,... |
Tipo: Text |
Palavras-chave: Halophila stipulacea; Épiphytes algaux; Épiphytisme; Algues marines; Méditerranée occidentale; Halophila stipulacea; Seagrass epiphytes; Epiphytism; Marine algae; Western Mediterranean. |
Ano: 1999 |
URL: http://archimer.ifremer.fr/doc/00325/43605/43924.pdf |
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OLIVEIRA,VIRGINIA DEL CARMEN; SAJO,MARIA DAS GRAÇAS. |
O mesofilo é formado por parênquima lacunoso e os feixes vasculares, maiores e menores, se dispõem intercaladamente, nas folhas de Orchidaceae estudadas (Catasetum fimbriatum Lindl., Dichaea bryophila Rchb. f., Encyclia calamaria (Lindl.) Pabst, Epidendrum campestre Lindl., E. secundum Jacq., Miltonia flavescens Lindl., Pleurothallis smithiana Lindl., Stanhopea lietzei (Regel) Schltr. e Vanda tricolor Lindl.). No mesofilo de quase todas as espécies ocorrem células esclerificadas adjacentes à epiderme, nas duas faces foliares. Também são comuns, nas folhas estudadas, caracteres estruturais que podem ser interpretados como adaptações ao hábito epifítico. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Leaf anatomy; Orchidaceae; Epiphytism. |
Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84041999000300003 |
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Dias-Terceiro,Randolpho Gonçalves; Peixoto,Gabriela Marques; Gomes,Vitor Serrano; Menezes,Marcelo Costa; Neco,Eudécio Carvalho; Pessoa,Tainá Sherlakyann Alves; Fabricante,Juliano Ricardo; Albuquerque,Manoel Bandeira. |
Epiphytes are common in the canopy of temperate and tropical forests, where they substantially contribute to species diversity and to key ecosystem processes. However, little is known about the effects caused by deforestation on this group of species, especially in northeastern Brazil, an area experiencing intense anthropogenic pressure. This study aimed to evaluate the effect of environmental variables on the structure of assemblies of vascular epiphytes in a fragment of open ombrophilous forest, Areia, northeastern Brazil. Sixty 10 × 10 m sampling plots were installed to cover different environments within the fragment. The relationship between environmental variables and species composition was evaluated by means of a generalized linear mixed model. The... |
Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Brejo de altitude; Community ecology; Epiphytism; Environmental factors; Forest fragmentation. |
Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000200270 |
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Quaresma,Adriano Costa; Jardim,Mário Augusto Gonçalves. |
Vascular epiphytes constitute a life form that is important to maintaining the biological diversity of forest ecosystems, because they provide food resources and specialized microenvironments for fauna in the forest canopy. This study aimed to describe the floristic composition and ecological aspects of vascular epiphytes occurring in the restingas (coastal woodlands) within the Algodoal-Maiandeua Environmentally Protected Area, located in the municipality of Maracanã, in the state of Pará, Brazil. We sampled five 50 × 50 m plots (three in dry restinga forest and two in floodplain restinga forest), the sampled area therefore totaling 1.25 ha. In the plots sampled, vascular epiphytes were identified and described according to their frequency, abundance,... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Functional group; Amazon coast; Epiphytism; Vertical distribution. |
Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062014000100007 |
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Pedroso-de-Moraes,Cristiano; Souza-Leal,Thiago de; Brescansin,Rafael L.; Pettini-Benelli,Adarilda; Sajo,Maria das Graças. |
Considering that the root structure of the Brazilian genera belonging to the Catasetinae subtribe is poorly known, we describe the roots of twelve representatives from this subtribe. For anatomical analysis, the roots were fixed in FAA 50, preserved in ethanol 70% and sectioned at its medium region using razor blades. The sections were stained with 0.05% astra blue and safranin and mounted in glycerin. For the identification of starch we used Lugol's solution; for lignin, floroglucin chloridric; for lipids, Sudan III, and for flavanoids, potassium hydroxide. The relevant aspects were registered using a digital camera joined with an Olympus microspope (BX51 model). The structural similarities of all roots support the placement of the subtribe Catasetinae... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Epiphytism; Morphoanatomy; Orchid; Systematic. |
Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000200015 |
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Leite,Fosca Pedini Pereira; Turra,Alexander. |
Studies were carried out to investigate the temporal variation in Sargassum biomass, Hypnea epiphytism and associated fauna. There was a marked variation in the biomass of Sargassum and Hypnea among various sampling periods. Low values for Sargassum were recorded in August and November, while the lower value for Hypnea biomass was recorded in August. An inverse relationship was found between Sargassum biomass and the intensity of Hypnea epiphytism. The density of the total fauna associated to Sargassum showed a marked reduction in May. This variation was influenced by the variation patterns of the dominant faunistic groups (Gastropoda, Gammaridea, Isopoda and Caridea). Significant positive relationships were found between the biomass of Sargassum and... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sargassum; Hypnea; Epiphytism; Phytal; Associated fauna. |
Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000400021 |
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Registros recuperados: 10 | |
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