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| Registros recuperados: 470 | |
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| Sousa,Luzicléia Araújo; Bautista,Hortensia Pousada; Jardim,Jomar Gomes. |
| Este trabalho consiste no levantamento das espécies de Rubiaceae encontradas na Serra da Fumaça - complexo de Serras da Jacobina, Bahia. No período de junho de 2011 a agosto de 2012 foram realizadas coletas mensais de material botânico ao longo de trilhas e no interior da floresta contemplando todas as fitofisionomias existentes na área. Foram registradas 36 espécies distribuídas em 20 gêneros. Os gêneros mais representativos em número de espécies foram Borreria G.Mey. (5 spp.), Diodella Small, Mitracarpus Zucc. exSchult. & Schult.f. e Psychotria L. (3 spp. cada), seguidas porCoccocypselum P.Browne, Declieuxia Kunth,Palicourea Aubl., Perama Aubl., Richardia L. eStaelia Cham. & Schltdl. (2 spp. cada). Os demais gêneros foram representandos por... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Taxonomia; Caatinga; Campo rupestre; Floresta estacional; Chapada Diamantina. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000300289 |
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| Cabral,Sofia de O.; Freitas,Itainara da S.; Morlanes,Viviane; Katzenberger,Marco; Calabuig,Cecilia. |
| Abstract: The boa (Boa constrictor) is considered a top predator and its diet includes a wide variety of birds, mammals, and other reptiles, all related directly to their availability in the environment inhabited by the snake. Seven boas were found roadkilled on highways adjacent to conservation units in the semi-arid region of Rio Grande do Norte state, in northeastern Brazil. Their digestive tract was analyzed to identify food items and classify them according to their orientation in the tract. Among the food items found, the white-eared opossum (Didelphis albiventris) and the black-and-white tegu (Salvator merianae) were ingested head-first, while teeth of a punaré (Thrichomys laurentius) and a Spix's yellow-toothed cavy (Galea spixii) and hairs of an... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Caatinga; Feeding behavior; Snake; Seed dispersal; Zoochory. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000400203 |
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| Lima,Jéssica Batista; Bovini,Massimo Giuseppe; Conceição,Adilva de Souza. |
| Abstract: This work presents a floristic survey of the subfamilies Bombacoideae, Byttnerioideae, Grewioideae and Helicterioideae (Malvaceae s.l.) in the Raso da Catarina Ecoregion (RCE), Bahia, Brazil. The samples analyzed were collected from September 2013 to May 2015. The analyses were supplemented with dried collections kept in the herbaria: ALCB, HRB, HUEFS, HUNEB, HST, IPA, PEUFR, R and RB. The identifications were based mainly on specialized bibliographies, protologues, types and herbaria collections. Ten genera and 22 species of the subfamilies were recorded, nine endemic to Brazil. Waltheria L. was the most representative genus with five species, followed by Ceiba Mill. and Melochia L. with three species each, Helicteres L., Luehea Willd., Pachira... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biodiversity; Caatinga; Morphology; Semiarid; Taxonomy. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000300307 |
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| Duarte,Neimar de Freitas; Karam,Decio; Bucek,Elizabeth Uber; Muzzi,Maria Rita Scotti. |
| With the purpose of selecting the species of woody Caatinga for mixed plantations with Eucalyptus spp., the allelophatic effects of E. camaldulensis and E. grandis essential oil were studied on the growth activities of Anadenanthera peregrina. The plants were closed in glass chambers in the presence of volatile oil of E. camaldulensis or E. grandis at the concentration of 13 nl.cm-3. The number of leaves, height and diameter at soil lever were compared before, immediately after and after 30 days. Chlorophyll a and b, carotenoids and dry mass were evaluated after the treatment application. There was no inhibitory effect of E. camaldulensis and E. grandis oils on A. peregrina. E. camaldulensis, which was more adapted to semi-arid conditions, was planted in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Allelophatic; Caatinga; Angico. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000300013 |
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| FIGUEIREDO,Mauro Pereira de; QUADROS,Danilo Gusmão de; CRUZ,Jurandir Ferreira da. |
| O objetivo deste trabalho foi o de determinar a concentração hidrogeniônica (pH), acidez total titulável e tempo de redução do azul de metileno no fluido ruminal de caprinos com ou sem raça definida, mantidos em pastagens artificiais, exclusivas de gramíneas, ou em caatinga, durante as épocas chuvosa e seca do ano. O delineamento experimental foi inteiramente casualizado, sendo analisado em esquema fatorial 2³ (animais com e sem raça definida, pastagens artificiais e em caatinga, épocas chuvosa e seca do ano). O tipo de pastagem influenciou significativamente (p < 0,05) os valores encontrados para acidez total titulável. Em relação ao pH, o tipo de pastagem e época do ano foram significativamente (p < 0,05) os fatores mais incisivos. A atividade... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acidez do solo; Caatinga; Caprinos; Fluido do rúmen; Rúmen. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962000000500012 |
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| Santiago,André Luiz Cabral Monteiro de Azevedo; Santos,Paulo Jorge Parreira dos; Maia,Leonor Costa. |
| Nineteen taxa of Mucorales, belonging to Absidi, Apophysomyces, Cunninghamella, Fennellomyces, Lichtheimi, Mucor, Mycotypha, Rhizopus and Syncephalastrum were isolated from 36 composite soil samples in three semiarid areas in the State of Pernambuco (Triunfo, Cabrobó and Belém de São Francisco), Northeast Brazil, which are characterized by Caatinga vegetation. Triunfo is preserved, whereas Cabroró and Belém de São Francisco are experiencing low and severe desertification processes, respectively. Mucorales were isolated in Petri dishes in triplicate from 5 mg samples of soil placed on the surface of wheat germ agar plus chloramphenicol and Cercobin [Dimethyl 4,49-(103 phenylene) bis (3-thioallophanate)] medium. The plates were left on a bench at room... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biodiversity; Caatinga; Mucoromycotina; Soil degradation; Taxonomy. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000100044 |
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| Souza,Carlos Alberto Fragoso de; Lima,Diogo Xavier; Gurgel,Luciana M.S.; Santiago,André Luiz Cabral Monteiro de Azevedo. |
| Abstract Mucorales comprises fungi commonly isolated as saprobes from soil, dung, stored grains and plants. Although these fungi have been studied in several countries, there are relatively a few reports of them in semi-arid areas. Therefore, the aims of the present study were to assess and compare the Mucorales communities in dung from different species and breeds of herbivores in the semi-arid of Pernambuco, based on the frequency of occurrence and species richness of these fungi. Samples of dung collected in the cities of Arcoverde, Serra Talhada and Sertânia were incubated in moist chambers in triplicate. Altogether, 24 taxa of Mucorales distributed in the genera Absidia, Circinella, Cunninghamella, Lichtheimia, Mucor, Pilobolus, Rhizopus and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Caatinga; Dung; Herbivore; Mucoromycotina; Taxonomy. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822017000100079 |
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| Luna,Rômulo Gil de; Coutinho,Henrique Douglas Melo; Grisi,Breno Machado. |
| The productivity of a pasture soil (caatinga) located in the region of São João do Cariri, PB, Brazil was evaluated based an the following microbiological parameters: biomass (measured by fumigation-incubation method), activity (estimated from basal respiration and cellulose decomposition rate), qCO2, and Cmic : Corg ratio. This analysis demonstrated that livestock management in the 'caatinga' is probably causing environment damage by affecting the soil properties, reducing the microbial biomass and soil respiration and increasing the qCO2, affecting the recovery of this ecosystem. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Semi-arid; Biomass; Microbial activity; Pasture; Caatinga. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000300001 |
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| Cunha,Cleyton Saialy Medeiros; Maia,Sandra Sely Silveira; Coelho,Maria de Fatima Barbosa. |
| Croton zehntneri Pax et Hoffm. (canela de cunhã) é nativa do nordeste do Brasil, tem efeito antioxidante e atividade antinociceptiva e antidepressiva. O estudo da propagação vegetativa é importante por causa da baixa produção de sementes e existência de diferentes quimiotipos da espécie. O objetivo do presente trabalho foi verificar o efeito de ácido indolbutirico (AIB) na produção de mudas por estacas de C. zehntneri. Os tratamentos foram as concentrações zero, 1.000, 2.000, 3.000, 4.000 e 5.000mg L-1 de AIB. O delineamento experimental foi em blocos ao acaso, com seis tratamentos e quatro repetições de 10 estacas por parcela. Foram analisadas aos 40 dias as seguintes características: porcentagem de enraizamento, número e comprimento das raízes por... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Propagação vegetativa; Enraizamento; Auxina; Canelinha; Caatinga. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782012000400007 |
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| Registros recuperados: 470 | |
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