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	Provedor de dados Acta Botanica (1) BABT (1) Autor Colli,Áurea M. T. (1) Eisenlohr,Pedro V. (1) Gasper,André Luís de (1) Perez,Sonia C. J. G. de A. (1) Salino,Alexandre (1) Palavra-chave Pteridophyte (2) Botanical collections (1) Estimators (1) Far-red light (1) Germination (1) Hotspot (1) Red light (1) Southern Brazil (1) Species richness estimates (1) Spores (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2016 (1) 1999 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Improving collection efforts to avoid loss of biodiversity: lessons from comprehensive sampling of lycophytes and ferns in the subtropical Atlantic Forest Acta Botanica Gasper,André Luís de; Eisenlohr,Pedro V.; Salino,Alexandre. ABSTRACT Estimating species richness with herbarium data and new collections allows us to understand the distribution of diversity. We investigated the accuracy of lycophyte and fern sampling along a vegetation gradient in the subtropical Atlantic Forest in southern Brazil. We compiled lycophyte and fern collection metadata and estimated species richness and assessed sampling accuracy for sixty 50 x 50 km units using ACE, Chao 1, Chao 2, Jackknife 1 and Jackknife 2 estimators. We compiled data for 12,779 fern specimens of 441 species, 67 of which were sampled in only one unit (singletons) and 35 in two units (duplicates). Of the 60 units examined, only 11 had observed values that were above 70% of their estimated values, and 14 had observed levels between... Tipo: Info:eu-repo/semantics/article Palavras-chave: Botanical collections; Estimators; Hotspot; Pteridophyte; Southern Brazil; Species richness estimates. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000200166 The effect of red light on the germination of a Brazilian Pteridophyte BABT Colli,Áurea M. T.; Perez,Sonia C. J. G. de A.. The effects of red light on the germination of spores of Cheilantes concolor Langsd & Fisch were investigated in this study. The spores were spread in the Mohr (1956) nutritional solution after Dyer’s modifications (1979). Three Petri dishes were used for each treatment, three slides per dish were made for each day of treatment, and one hundred spores per slide were counted . Germination of the spores in the dark was not observed. In relation to the photoperiods, the highest germination percentage and index values were obtained with the exposure of the spores to photoperiods of 8h, and the lowest values were obtained with their exposure to photoperiods of 2h. The phytochrome pigment acts in the germination of the spores through low fluency... Tipo: Info:eu-repo/semantics/article Palavras-chave: Germination; Red light; Far-red light; Spores; Pteridophyte. Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000200006 Registros recuperados: 2 Primeira ... 1 ... Última

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