Consulta: subjectFacets:"Semiarid"
Registros recuperados: 73
Data/hora: 08/06/2024 13:41:34

Georeferenced database generation with the purpose of hydrologic molding in reservoirs of the hydrographic basin of Jaguaribe river in the state of Ceará, Brazil
Provedor de dados: Engenharia Agrícola
Autores: Leão,Raimundo A. de O.; Soares,Antônio A.; Teixeira,Adunias dos S.; Silva,Demetrius D. da.
The edafoclimatic conditions of the Brazilian semiarid region favor the water loss by surface runoff. The state of Ceará, almost completely covered by semiarid, has developed public policies for the construction of dams in order to attend the varied water demand. Several hydrological models were developed to support decisive processes in the complex management of reservoirs. This study aimed to establish a methodology for obtaining a georeferenced database suitable for use as input data in hydrological modeling in the semiarid of Ceará. It was used images of Landsat satellite and SRTM Mission, and soil maps of the state of Ceará. The Landsat images allowed the determination of the land cover and the SRTM Mission images, the automatic delineation of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Geoprocessing; GIS; Hydrologic models; Curve number; Jaguaribe River; Semiarid.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000200017

Uncertainties of the 137Cs technique for validation of soil redistribution modelling in a semiarid meso-scale watershed
Provedor de dados: Engenharia Agrícola
Autores: Medeiros,Pedro H. A.; Araújo,José Carlos de; Andrello,Avacir C.
Scarcity of long-term series of sediment-related variables has led watershed managers to apply mathematical models to simulate sediment fluxes. Due to the high efforts for installation and maintenance of sedimentological gauges, tracers have been pointed out as an alternative to validate soil redistribution modelling. In this study, the 137Cs technique was used to assess the WASA-SED model performance at the Benguê watershed (933 km²), in the Brazilian semiarid. Qualitatively, good agreement was found among the 137Cs technique and the WASA-SED model results. Nonetheless, quantitatively great differences, up to two orders of magnitude, were found between the two methods. Among the uncertainties inherent to the 137Cs technique, definition of the reference...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 137Cs; Soil redistribution; Sediment modelling; Semiarid.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000200004

Water transfer from São Francisco river to semiarid northeast of Brazil: technical data, environmental impacts, survey of opinion about the amount to be transferred
Provedor de dados: Engenharia Agrícola
Autores: Stolf,Rubismar; Piedade,Sonia M. de S; Silva,Jair R. da; Silva,Luiz C. F. da; Maniero,Miguel Â.
The transposition of the São Francisco River is considered one of the greatest engineering works in Brazil of all time since it will cross an extensive agricultural region of continental dimensions, involving environmental impacts, water, soil, irrigation, water payment and other multidisciplinary themes. Taking into account its importance, this subject was incorporated into a discipline of UFSCar (Federal University of São Carlos - Brazil) named "Pollution and Environmental Impacts". It was noted strong reaction against the project, even before the presentation. To allow a critical analysis, the first objective was to compile the main technical data and environmental impacts. The second objective was to detect the three most important aspects that cause...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Integration; Water transfer; Volume; Technical data; Northeast; Semiarid.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000600001

Thermal performance and concentration of gases in facilities for pigs in semiarid region from State of Paraiba - Brazil
Provedor de dados: Engenharia Agrícola
Autores: Furtado,Dermeval A.; Amancio,Daniele; Nascimento,José W. B. do; Gomes,Josivanda P.; Silva,Rafael C.
The study was conducted in a facility for pigs during the nursery and finishing in the town of 'Montadas', in the semiarid of the state of Paraiba, Brazil, in the rainy and dry season, aiming to evaluate the concentration of oxygen, methane, carbon monoxide and ammonia, and the bioclimatic indexes: ambient temperature (AT), relative humidity (RH) and the index of black globe temperature and humidity (IBGTH). These indexes differed significantly (P&gt;0.05) between the periods and times. The AT in the rainy season was in the thermal comfort zone(TCZ) in most of the times in the nursery; for the finishing phase, thermal discomfort occurred; during the dry season, there was thermal comfort in the nursery phase; in the finishing phase the thermal discomfort...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Welfare; Thermal comfort; Gases; Semiarid.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000100004

APPLICABILITY OF FINGERPRINTING FOR IDENTIFICATION OF SEDIMENT SOURCES IN A MESOSCALE SEMIARID CATCHMENT
Provedor de dados: Engenharia Agrícola
Autores: Silva,Eveline M. R. da; Medeiros,Pedro; Araújo,José C. de.
ABSTRACT The study aimed at identifying sediment sources in a mesoscale catchment (933 km2) located in the Brazilian semiarid region. The research explored the potential of using a fingerprinting technique to verify the origin of eroded sediments in a catchment by comparing physical and mineralogical properties of potential sediment sources and sediments deposited in a pond (6 × 103 m3 storage capacity) and a reservoir (20 × 106 m3 storage capacity). The goal was to assess the feasibility of using such material to identify sediment sources in a semiarid environment with a high density of surface reservoirs. Chemical variables were studied by mineralogical analysis using scanning electron microscopy (SEM) and multivariate statistics. The results showed that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sediment dynamics; Soil physics; Soil mineralogy; Semiarid.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000400553

Silting in the dense reservoir network of the Pereira de Miranda catchment
Provedor de dados: Engenharia Agrícola
Autores: Lira,Daniely; Toledo,Cristian; Mamede,George.
This study aims to analyze the impacts of the reservoir network within Pereira de Miranda - CE catchment (also called Pentecoste) over sediment transport and storage capacity of the system. The survey of the "damming" was carried out using satellite images. We identified 502 erosion units, derived from overlaying maps of the Universal Soil Loss Equation parameters, which allowed the estimation of localized erosion in the basin and identification of areas potentially generating sediment. In order to estimate silting in Pentecoste reservoir, different system structure scenarios were considered. An average erosion rate of 59 t ha-1year-1 was estimated. According to the model, the silting of Pentecoste reservoir may vary from 1.1 to 2.6% per decade, depending...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sediment generation; Sediment retention in reservoirs; Semiarid.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000400007

Estimation of evaporation in the Banabuiú dam, in the state of Ceará, Brazil, by different combined methods, derived from the Penman equation
Provedor de dados: Engenharia Agrícola
Autores: Leão,Raimundo A. de O.; Soares,Antônio A.; Teixeira,Adunias dos S.; Silva,Demetrius D. Da.
The state of Ceará, Brazil, has 75% of its area covered by Brazilian semiarid, with its peculiar features. In this state, the dams are constituted in water structure of strategic importance, ensuring, both in time and space, the development and supply of water to population. However, construction of reservoirs results in various impacts that should be carefully observed when deciding on their implementation. One of the impacts identified as negative is the increased evaporation, which constitutes a major component of water balance in reservoirs, especially in arid regions. Several methods for estimating evaporation have been proposed over time, many of them deriving from the Penman equation. This study evaluated six different methods for estimating...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dams; Semiarid; Hydrologycal modelling; Water balance.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000100014

Trophic ecology and foraging behavior of Tropidurus hispidus and Tropidurus semitaeniatus (Squamata, Tropiduridae) in a caatinga area of northeastern Brazil
Provedor de dados: Iheringia Série Zoologia
Autores: Ribeiro,Leonardo B.; Freire,Eliza M. X.
This study aimed to analyze the seasonal variation in diet composition and foraging behavior of Tropidurus hispidus (Spix, 1825) and T. semitaeniatus (Spix, 1825), as well as measurement of the foraging intensity (number of moves, time spent stationary, distance traveled and number of attacks on prey items) in a caatinga patch on the state of Rio Grande do Norte, Brazil. Hymenoptera/Formicidae and Isoptera predominated in the diet of both species during the dry season. Opportunistic predation on lepidopteran larvae, coleopteran larvae and adults, and orthopteran nymphs and adults occurred in the wet season; however, hymenopterans/Formicidae were the most important prey items. The number of food items was similar between lizard species in both seasons;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Foraging strategies; Lizards; Semiarid; Sympatric species.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212011000200010

Comportamento silvicultural de Azadirachta indica A. Juss (Neem) no semi-arido brasileiro.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: LIMA, P. C. F.
bitstream/item/23517/1/Pesquisa-em-andamento-89.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Comportamento; Planta inseticida; Semi-arido; Semiarid; Plant insecticide.; Nim; Azadirachta Indica.; Behavior.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/132414

Observations on the Lateral Structure of Wind-Driven Flows in a Stratified, Semiarid Bay of the Gulf of California
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Winant, Chloe; Valle-levinson, Arnoldo; Ponte, Aurelien; Winant, Clinton; Gutierrez-de-velasco, Guillermo; Winters, Kraig.
Time series of current velocity profiles and thermistor chains were obtained throughout a cross-bay transect for ~90 days for the purpose of comparing observed wind-driven stratified flows to theory. This study concentrates on the synoptic scale wind and its influence on the bay’s circulation. The maximum water column stratification was 3–4 °C/m throughout the deployment and influenced wind-driven flows. Low-pass filtered flows showed more complicated structures than those expected from theory: a depth-dependent recirculating structure with the along-bay flow over one half of the transect moving in opposite direction to the other half. Analysis of complex empirical orthogonal functions indicated that the first six modes explained 80 % of the flow...
Tipo: Text
Palavras-chave: Wind-driven flow; Stratification; Concepcion Bay; Semiarid.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00171/28218/32176.pdf

Green lacewings (Neuroptera: Chrysopidae) associated with Melon Crop in Mossoró, Rio Grande do Norte State, Brazil
Provedor de dados: Neotropical Entomology
Autores: Bezerra,Carlos E S; Tavares,Patrícia K A; Macedo,Luciano P M; Freitas,Sérgio de; Araujo,Elton L.
A survey of the green lacewings associated with the melon agroecosystem was carried out with the aim of including lacewings into the integrated management program of melon pests. Three species of this predator were found: Ceraeochrysa cubana (Hagen), Chrysoperla externa (Hagen) and Chrysoperla genanigra Freitas. A key to these species is presented.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Semiarid; Predator; Chrysoperla; Ceraeochrysa.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000300024

Clonagem de Cnidoscolus quercifolius por alporquia, utilizando rejeito de vermiculita e diferentes concentrações de AIA
Provedor de dados: PFB - Pesquisa Florestal Brasileira
Autores: Farias Júnior, José Aminthas de; Arriel, Eder Ferreira; Lúcio, Assíria Maria Ferreira da Nóbrega; Freire, Antonio Lucineudo de Oliveira; dos Santos, Rivaldo Vital; Lucena, Rosivânia Jerônimo.
Dotada de grande resistência à seca, Cnidoscolus quercifolius Pohl (faveleira) é uma espécie que pode ser usada como forrageira, medicinal, alimentação humana, biodiesel e para recuperação de áreas degradadas. Entretanto, apresenta dificuldade de enraizamento pela técnica da estaquia e, por isto, foi avaliada a técnica alternativa da alporquia. Os tratamentos foram constituídos por substratos e concentrações de AIA (ácido indolacético). Foi observado um percentual de 46% de enraizamento no rejeito de vermiculita, com ganho significativo de matéria seca radicular. Não houve efeito significativo das doses de AIA, para as variáveis analisadas.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Recursos Florestais; Genética Vegetal Substratos; Fitorreguladores; Semiárido; Impacto ambiental; Rejeito de mineração Substrates; Phytoregulators; Semiarid; Environmental impact; Mining waste.
Ano: 2015
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/449

Ichthyofauna of Trairí river basin, Rio Grande do Norte state, northeastern Brazil: a century after the study of the naturalist Edwin Starks in the Papari lagoon
Provedor de dados: Papéis Avulsos de Zoologia
Autores: Medeiros,Lucas Silva de; Ramos,Telton Pedro Anselmo; Silva,Márcio Joaquim da; Paiva,Roney Emanuel Costa de; Lira,Mateus Germano Souza; Lima,Sergio Maia Queiroz.
Abstract Fishes from the coastal basins of the Mid-Northeastern Caatinga ecoregion (MNCE) were first sampled by the Stanford expedition at the beginning of the 20th century, and published by Edwin C. Starks in 1913. This material included specimens from the Papary lake (= Papari lagoon) in the lower portion of the Trairí river basin, draining towards the eastern coast of Rio Grande do Norte State. In 1941, Henry Fowler provided a broad taxonomic study of the freshwater fishes from northeastern Brazil, including material from the Papari lagoon, besides describing four species assigned to this locality. However, these previous surveys focused only in the lower portion of the Trairí river basin and might be incomplete. Given this framework, the present study...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mid-Northeastern Caatinga Ecoregion; Freshwater fishes; Coastal basins; Semiarid.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492019000100201

Cerambycidae (Coleoptera) from Lagoa do Tamburí farm, Aracatu – Bahia, with new records
Provedor de dados: Papéis Avulsos de Zoologia
Autores: FERREIRA,ANDRÉ DA SILVA; ROCHA,AGDA ALVES DA.
ABSTRACTSpecies of Cerambycidae were inventoried in an area of Caatinga (dryland) vegetation in the municipality of Aracatu, Bahia State, Brazil, between August/2012 and July/2013. The insects were collected using light traps, active searches, and white cloth trapping. A total of 716 specimens of Cerambycidae were collected; 665 of them were identified as belonging to 107 species, 84 genera, 30 tribes, and 3 subfamilies. The speciesPhaedinus carbonelli  Monné, 1999,Lepturges (Lepturges) fasciculatoides  Gilmour, 1962,Hoplistonychus bondari  Melzer, 1930,Ataxia arenaria  Martins &amp; Galileo, 2013 were new records for Bahia;Nesozineus obscurus Hoffmann, 1984 is new record for Brazil. The subfamily Cerambycinae demonstrated the greatest richness, with 56...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Neotropical Region; Inventory; Semiarid.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492015002500363

Modis time series for irrigated-area mapping in hydrographic basins of the Brazilian Northeastern region
Provedor de dados: Pesquisa Agropecuária Brasileira
Autores: Ide,Andre Keiiti; Baptista,Gustavo Macedo de Mello.
Abstract: The objective of this work was to evaluate the applicability of time series of the enhanced vegetation index (EVI), from the moderate resolution imaging spectroradiometer (Modis), in the mapping of irrigated areas in the Northeastern region of Brazil. Annual time series from 2006 to 2015 were classified with the iterative self-organizing data analysis technique (Isodata) algorithm, generating a binary map of irrigated and nonirrigated areas for each year. In the Sertão region, the classification showed an average kappa coefficient of 0.66, underestimating the irrigated area by 7.6%, compared with data of the 2006 agricultural census. In regions more humid than the Sertão, such as Agreste and Zona da Mata Nordestina, the methodology showed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural and environmental planning; EVI; Remote sensing; Semiarid; Vegetation index; Water resources management.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000100080

Aboveground biomass and concentration of nutrients in semiarid rangeland plant species: Influence of grazing and soil moisture
Provedor de dados: Phyton: Revista Internacional de Botánica Experimental
Autores: Gul,B; Islam,M; Ahmad,S; Gul,S.
Spatial and temporal patterns of aboveground biomass and nutritive value of rangeland species with respect to the influence of grazing and soil moisture were investigated. The research was conducted during two years at the Tomagh Research Station, near Sanjawi, Ziarat District, Balochistan, Pakistan. This area is protected from grazing since 1998; however, some of the area is open for grazing. Tree sites were selected for research purposes: a protected plain, a protected hilly, and an unprotected plain grazed area. Sampling was carried out during the spring, summer and autumn seasons. Results revealed that soil moisture was greater at the protected than unprotected sites. The aboveground plant biomass was 66% to 76% lower at unprotected than protected...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rangeland; Biomass production; Season; Semiarid; Grazing; Grass.
Ano: 2016
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572016000100013

Weeds Biomass as Affected by Tillage Practices and Cropping Systems under a Semiarid Environment
Provedor de dados: Planta Daninha
Autores: MEHMOOD-UL-HASSAN,; QAYYUM,A.; SHER,A.; TAHIR,M.I.; AZEEM,M.; FAREED,A.
ABSTRACT: Tillage practice has a significant role on weeds eradication and soil water conservation in crop production. Under semiarid agriculture, the monsoon rains (65%) are major source of water in Potohar, Pakistan, which can effectively be used mostly for winter crops production. To evaluate the impact of different tillage system for prevailing cropping systems and their weeds biomass under semiarid conditions, field experiment was conducted at the Arid University Research Farm Koont Rawalpindi (Pakistan) during crop growth seasons 2013-14 and 2014-15. Tillage systems as treatments were (a) three cultivations with a cultivator, as control treatment, (b) mold-board with two cultivations, (c) chisel-plough with two cultivations and (d) minimum tillage...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tillage; Cropping systems; Weeds; Biomass; Semiarid.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582020000100231

Agricultura familiar, água e estratégias produtivas no rio dos Cochos, campos gerais de Minas
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: Galizoni,   Flavia Maria; Ribeiro,   Eduardo Magalhaes; Lopes,   Elias Carlos; Chiodi,   Rafael Eduardo; Reis,   Ricardo Pereira.
O Alto-Médio São Francisco, inserido no bioma caatinga, está localizado na porção norte do estado de Minas, região semi-árida, marcada por uma distribuição muito irregular das chuvas no correr do ano. Esta região é alvo de projetos de irrigação, interessados principalmente nas águas do São Francisco, e na de seus principais afluentes. O objetivo deste artigo é analisar a relação entre comunidades de lavradores e água em um meio onde existe grande sazonalidade na disponibilidade natural de recursos hídricos e, ao mesmo tempo, incentivos maciços para projetos intensivos em uso de água. Procura analisar, principalmente, os manejos comunitários das águas realizados por agricultores familiares, a relação entre disponibilidade de água, produção de alimentos e...
Tipo: Conference Paper or Presentation
Palavras-chave: Semi-árido; Agricultura familiar; Água; Semiarid; Family farmer; Water; Resource /Energy Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/106123

Plant species and habitat structure in a sand dune field in the brazilian Caatinga: a homogeneous habitat harbouring an endemic biota
Provedor de dados: Revista Brasileira de Botânica
Autores: Rocha,Pedro Luís B. da; Queiroz,Luciano P. de; Pirani,José Rubens.
One dune habitat in the semi-arid Caatinga Biome, rich in endemisms, is described based on plant species composition, woody plant density, mean height and phenology and a multivariate analysis of the micro-habitats generated by variables associated to plants and topography. The local flora is composed mainly by typically sand-dweller species of Caatinga, suggesting the existence of a phytogeographic unity related to the sandy areas in the Caatinga biome, which seems to be corroborated by faunal distribution. Moreover, some species are probably endemic from the dunes, a pattern also found in vertebrates. The plant distribution is patchy, there is no conspicuous herbaceous layer and almost 50% of the ground represents exposed sand. Phenology is not...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Density; Endemic species; Phenology; Phytogeography; Semiarid.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042004000400013

Planosols Developed in Different Geoenvironmental Conditions in Northeastern Brazil
Provedor de dados: Revista Brasileira de Ciência do Solo
Autores: Ferreira,José Thales Pantaleão; Ribeiro Filho,Mateus Rosas; Ribeiro,Mateus Rosas; Souza Júnior,Valdomiro Severino de; Bittar,Sheila Maria Bretas; Santos,Robson Gomes dos.
ABSTRACT The semiarid region of northeastern Brazil has a large area occupied by Planosols, where in the State of Pernambuco these soils are mainly used for livestock farming and subsistence crops. The knowledge on these soils is limited, which compromises the understanding on their behavior, potentialities and limitations.This study aimed to analyze morphological, chemical, physical and mineralogical attributes of Planosols developed under different geoenvironmental conditions. Morphological descriptions and chemical, physical and mineralogical analyses were performed in four profiles of Planosols along a rainfall gradient. An increase in rainfall allowed for an increase in the clay content in the Bt horizon and a reduction in ESP, EC, Na+, CEC, S, pH...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soil mineralogy; Weathering; Climate; Semiarid.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100302

Modeling of soil water infiltration with rainfall simulator in different agricultural systems
Provedor de dados: Revista Brasileira de Engenharia Agrícola e Ambiental
Autores: Santos,Thais E. M. dos; Souza,Edivan R. de; Montenegro,Abelardo A. A.
ABSTRACT This study aimed to compare models for predicting soil water infiltration rate and erosive rates using a rainfall simulator in different systems of common bean (Phaseolus vulgaris L.) cultivation. The evaluated mathematical models were: Kostiakov, Kostiakov-Lewis, Green-Ampt and Horton. Infiltration tests were carried out considering six treatments: bean cultivated on contour with rock barriers spaced at 0.5 m between crop rows (BC1); bean cultivated on contour with rock barriers spaced at 1.0 m between crop rows (BC2); bean cultivated downslope (BDS); bean cultivated on contour with mulch (BCM); bare soil (BS) and soil under natural cover (NC). Four replicates were considered, totaling 24 field tests. Kostiakov-Lewis's equation showed the lowest...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Semiarid; Bean; Soil management.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000600513

Yield of cherry tomatoes as a function of water salinity and irrigation frequency
Provedor de dados: Revista Brasileira de Engenharia Agrícola e Ambiental
Autores: Santos,Alexandre N.; Silva,Ênio F. de F. e; Silva,Gerônimo F. da; Barnabé,Janice M. C.; Rolim,Mario M.; Dantas,Daniel da C.
ABSTRACT The use of brackish water in agriculture can cause salinization of soils and reduce plant yield. This problem can be minimized by hydroponic cultivation, which improves plant development. The aim of this study was to evaluate the yield of cherry tomatoes grown in hydroponic system with substrate under salinity levels of the nutrient solution (NS), exposure time to salinity and irrigation frequency. The experiment was conducted in a greenhouse, in a randomized complete block design, in a 6 x 2 x 2 factorial scheme with five replicates: six salinity levels of NS prepared with brackish water (3.01; 4.51; 5.94; 7.34; 8.71 and 10.40 dS m-1); two exposure times to NS (60 and 105 days) and two irrigation frequencies (one irrigation per day and irrigation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lycopersicon esculentum Mill; Hydropony; Semiarid.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000200107

PRODUCTION AND POSTHARVEST QUALITY OF IRRIGATED PASSION FRUIT AFTER N-K FERTILIZATION
Provedor de dados: Revista Brasileira de Fruticultura
Autores: DIAS,DANIEL GONÇALVES; PEGORARO,RODINEI FACCO; MAIA,VICTOR MARTINS; MEDEIROS,ANANIAS COSTA.
ABSTRACT  Studies with nitrogen and potassium in yellow passion fruit cultivars with high yield potential are scarce in semiarid regions. The aim of this study was to evaluate the influence the N and K doses on productivity and fruit quality of different passion fruit cultivars in irrigated conditions in the northern of Minas Gerais state. The study was installed at experimental farm located in Janaúba-MG. This area was located at 15º 47’ S and 43º 18’ W, 516 m above sea level. The experiment was in completely randomized block with four replications, arranged in 4 x 6 factorial design consisting of four Passion Fruit cultivars (BRS Sol do Cerrado, BRS Ouro Vermelho, BRS Gigante Amarelo, IAC 275) and six N and K doses, which corresponded to 0-0, 50-125,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Semiarid; Cultivars; Productivity; Passiflora edulis Sims f. falvicarpa Deg.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000303001

PHENOLOGICAL CHARACTERIZATION OF PEAR TREES (Pyrus communis L.) ‘PRINCESINHA’ UNDER SEMIARID CONDITIONS IN THE NORTHEASTERN BRAZIL
Provedor de dados: Revista Brasileira de Fruticultura
Autores: OLIVEIRA,INEZ VILAR DE MORAIS; LOPES,PAULO ROBERTO COELHO; SILVA-MATOS,RAISSA RACHEL SALUSTRIANO DA.
ABSTRACT  The study of phenology is fundamental in introducing cultivars into new regions, mainly in different conditions from those in which they are adapted. The study was conducted in order to characterize the phenological phases of pear (Pyrus communis L.) cultivar ‘Princesinha’, determine the fixation of fruit rate and quantify the production, as well as to determine the interference of climatic factors on the duration the budding cycle, in the region of São Francisco Valley, Petrolina, PE. To perform the phenological reviews four branches were marked in five plants and the data were expressed as percentage; the variables related to productivity were recorded in all orchard plants, data were submitted to descriptive analysis; climate data and...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Chilling requirement growing season; Phenology; Semiarid.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000300705

Physiological maturity of fruits and seeds of Poincianella pyramidalis (Tul.) L.P. Queiroz
Provedor de dados: Revista Brasileira de Sementes
Autores: Lima,Cosmo Rufino de; Bruno,Riselane de Lucena Alcântara; Silva,Katiane da Rosa Gomes da; Pacheco,Mauro Vasconcelos; Alves,Edna Ursulino; Andrade,Albericio Pereira de.
The Leguminosae family is one of the most representative botanical families of the Caatinga, with 80 endemic species, highlighting the catingueira (Poincianella pyramidalis). The objective of this research work was to study the maturation process of P. pyramidalis seeds based on the physiological maturity. Five harvest of fruits and seeds were carried out, with 15 days interval each, in a period from July to September 2010. The harvests began 75 days after anthesis (d.a.a.) and lasted until 135 d.a.a. Fruits and seeds were subjected to the following assessments: size, moisture content, and dry mass of fruits and seeds; and germination and vigor of seeds (first count of germination, germination speed index, length and dry mass of seedling). Under the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Catingueira; Semiarid; Maturity; Vigor; Caatinga.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222012000200007

Ovarian follicular cycle of Tropidurus hispidus and Tropidurus semitaeniatus (Squamata: Tropiduridae) in a semiarid region of Brazil
Provedor de dados: Revista Brasileira de Zoologia
Autores: Santos,Hellen S.; Santos,Jamile M.S.; Matos,Maria H.T.; Silva,Naisandra B.; Freire,Eliza M.X.; Ribeiro,Leonardo B.
The reproductive cycle of Squamata reptiles is often associated with environmental conditions, such as rainfall. In this respect, seasonal variations may affect the morphology of the ovarian follicles, which are associated with vitellogenesis. The present study describes histological alterations in the ovarian cycle of two lizard species, Tropidurus hispidus (Spix, 1825) and Tropidurus semitaeniatus (Spix, 1825), which inhabit a caatinga region in the state of Rio Grande do Norte. Our goal was to identify morphological differences in the ovarian follicles at each phase of vitelloge nesis and to ascertain if they are associated with rainfall. Three follicular phases were identified in both species: pre-vitellogenesis, vitellogenesis and follicular atresia....
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Ovarian stages; Reproductive cycle; Semiarid; Vitellogenesis.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000100086

Chemical-nutritional composition of maniçoba (Manihot sp.) and its relationship with soil chemical characteristics
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Andrade,Alexandro Pereira; Andrade,Alberício Pereira de; Silva,Divan Soares da; Santos,Edson Mauro; Silva,Ivandro de França da; Rêgo,Elizanilda Ramalho do; Bruno,Riselane de Lucena Alcântara.
The objective of this study was to evaluate the chemical composition of leaves of maniçoba (Manihot sp.) according to their development stage and their relationship with the soil characteristics. For this purpose, plants in their natural growth areas in the semiarid region of Paraíba State, Brazil, were sampled. Leaves of maniçoba collected in five different locations at four different development stages were harvested and characterized: expanding leaf, completely expanded leaf, leaf at the beginning of senescence and a pool (mixture of all leaves). The evaluated traits were: dry matter, crude protein, neutral detergent fiber, acid detergent fiber, neutral detergent insoluble protein, acid detergent insoluble protein, ash, lignin, cellulose, hemicellulose,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caatinga; Forage; Semiarid; Xerophilous plants.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000400161

Bromatologic composition of the herbaceous species of the Northeastern Brazil Caatinga
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Silva,D.S.; Andrade,M.V.M.; Andrade,A.P.; Carneiro,M.S.S.; Oliveira,J.S.
The objective of this work was to evaluate the chemical composition of the pool and of four species of caatinga herbaceous vegetation in the rainy and dry seasons. The experiment was conducted in three selected shrub areas at different levels of conservation. Four samples of each species (Arachis pintoi, Boerhavia diffusa, Heliotropium ternatum, Aristida adscensionis) were collected in each area and from a pool of species for determination of bromatologic composition. In the dry season, only the pool of species and the grass Aristida adscensionis were evaluated. There was a significant effect of the studied area on the chemical composition of all analyzed species. The nutrient content found in the dry matter (DM) and the digestibility of the pool of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Herbs; Native species; Quality; Semiarid.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000400008

Santa Inês sheep supplementation on urochloa grass pasture during the dry season: intake, nutrient digestibility and performance
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Almeida,Paulo José Presídio; Pereira,Mara Lúcia Albuquerque; Silva,Fabiano Ferreira da; Santos,Alana Batista dos; Pereira,Taiala Cristina de Jesus; Santos,Edileusa de Jesus dos; Moreira,Jeruzia Vitória.
This study was conducted with the objective of evaluating the effect of concentrate supplementation, formulated with different ingredients (Mesquite pod meal, sorghum meal or wheat meal and mineral supplementation) on performance, intake and digestibility of nutrients in Santa Inês lambs grazing on urochloa grass during the dry season. Twenty-four uncastrated weaned Santa Inês sheep, with average body weight (BW) 20±2 kg with an average of 120 days of age were used in the assay. The experiment lasted 75 days. The animals grazing deferred Urochloa grass (Urochloa mosambicensis (Hack) Daudy) were distributed into four treatments consisting of mineral supplementation provided ad libitum and concentrated supplements containing mesquite pod meal, sorghum meal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alternative food; Grazing; Multiple supplement; Semiarid; Urochloa mosambicensis (Hack) Daudy; Weight gain.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000300029

Aerobic fungi in the rumen fluid from dairy cattle fed different sources of forage
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Almeida,Patrícia Natalicia Mendes de; Duarte,Eduardo Robson; Abrão,Flávia Oliveira; Freitas,Cláudio Eduardo Silva; Geraseev,Luciana Castro; Rosa,Carlos Augusto.
The objective of this study was to evaluate the aerobic microbiota of the rumen fluid from Holstein cows and heifers fed different tropical forage in the north of Minas Gerais, Brazil. A total of 30 samples of rumen fluid from cows fed with sorghum silage were collected: 32 from cows fed Brachiaria brizantha, 12 from heifers that received sorghum silage and 11 from calves fed sugar cane foliage. The culture was carried out using the agar Sabouraud medium and the solid C medium, containing microcrystalline cellulose. The isolated mycelial fungi were identified by microculture technique and yeasts by micromorphological and physical-chemical analysis. Specific identification for yeasts was confirmed by ribosomal DNA sequence analysis. The presence of fungal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dairy farming; Forage supplementation; Rumen microbiota; Semiarid; Tropical pasture; Yeast.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012001100006

Feeding behavior and performance of sheep fed cactus pear in substitution of corn
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Costa,Roberto Germano; Treviño,Israel Hernandéz; Medeiros,Geovergue Rodrigues de; Medeiros,Ariosvaldo Nunes de; Gonzaga Neto,Severino; Azevedo,Paulo Sérgio de; Pinto,Tiago Ferreira.
The objective of this study was to evaluate the feeding behavior and performance of Santa Ines sheep subjected to different levels of substitution of corn by cactus pear in the diet. Forty-fivenon-castrated male Santa Inês sheep with initial live weight of 27.50±0.48 kg were distributed in a completely randomized design with five treatments (0, 70, 140, 210 and 280 g/kg DM) and nine replicates. Dry matter and neutral detergent fiberintakes showed quadratic behavior. Times spent eating, ruminating and total ruminating chews showed increasing linear behavior, while the idle time decreased with increasing amounts of dietary cactus. The feeding efficiency (gDM/h) increased linearly, while differences in rumination efficiency of the DM (g DM/h); NDF intake...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feeding efficiency; Ruminating chews; Rumination; Semiarid.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013001100004

Efficiency of metabolizable energy utilization for maintenance and gain and evaluation of Small Ruminant Nutrition System model in Santa Ines sheep
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Regadas Filho,José Gilson Louzada; Pereira,Elzânia Sales; Villarroel,Arturo Bernardo Selaive; Pimentel,Patrícia Guimarães; Fontenele,Rildson Melo; Costa,Marcus Roberto Góes Ferreira; Maia,Iana Sérvulo Gomes; Sombra,Weberte Alan.
This study was carried out to estimate efficiencies of the utilization of metabolizable energy for maintenance (k m) and weight gain (k g) and to evaluate the Small Ruminant Nutrition System (SRNS) model in predicting dry matter intake and average daily gain of growing Santa Ines sheep. Twenty-four non-castrated Santa Ines sheep, at 50 days of age and with average body weight of 13.00 ± 0.56 kg, respectively, were used. After a 10-day adaptation period, four animals were slaughtered to be used as reference for estimating initial empty body weight and body composition of the other animals. The remaining animals were distributed in a random block design, with the treatments consisting of diets containing different levels of metabolizable energy (2.08, 2.28,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mechanistic model; Nutritional requirements; Semiarid.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001100038

Biometric and chemical characteristics of sugarcane varieties for use as forage in limiting soil water conditions
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Bezerra,Janieire Dorlamis Cordeiro; Ferreira,Geane Dias Gonçalves; Campos,José Maurício de Souza; Oliveira,Mauro Wagner de; Andrade,Albericio Pereira de; Nascimento Júnior,José Ribamar Silva do.
ABSTRACT This study aimed to evaluate the biometric and chemical characteristics of five sugarcane varieties (RB 863129, RB 867515, RB 92579, RB 943365, and RB 98710) grown in a semi-arid climate for use as forage. The experiment was designed as randomized blocks, in a 5 × 2 factorial arrangement (five sugarcane varieties and two evaluation times, 407 and 483 days). Response variables included dry matter productivity, morphological characteristics, chemical composition, digestibility, and ratios among neutral detergent fiber (NDF), Brix, and Pol. For the biometric analyses, there was an interaction effect between the evaluated varieties and harvest times on the variables fresh matter yield, uncovered internodes, and stalk density (MID -middle internode...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feeding; Forage; Semiarid; Sugar.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000500384

Use of cactus pear (Opuntia ficus indica Mill) replacing corn on carcass characteristics and non-carcass components in Santa Inês lambs
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Pinto,Tiago Ferreira; Costa,Roberto Germano; Medeiros,Ariosvaldo Nunes de; Medeiros,Geovergue Rodrigues de; Azevedo,Paulo Sergio de; Oliveira,Ronaldo Lopes; Treviño,Israel Hernandez.
The objective of this study was to evaluate the biometric and morphometric measures, regional composition, carcass characteristics and non-carcass components of Santa Inês lambs submitted to levels of corn replaced by cactus pear in the diet. It was used 45 Santa Ines non-castrated male lambs, with average initial live weight of 25.50 ± 0.48 kg as a completely randomized block design with five treatments (0; 25; 50; 70 and 100%) and nine replicates. There was an effect of the diet on slaughter weight, empty body weight, hot and cold carcass, cold carcass weight, shoulder weight and loin weight. Cactus pear can replace up to 75% of corn in diets for feedlot Santa Inês lambs, without compromising production, carcass characteristics and production of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Buchada; Carcass dressing; Production systems; Retail cuts; Semiarid.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000600023

Mesquite pod meal in diets for lactating goats
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Pereira,Taiala Cristina de Jesus; Pereira,Mara Lúcia Albuquerque; Oliveira,Carlos Alberto Santana de; Argôlo,Lizziane da Silva; Silva,Herymá Giovane de Oliveira; Pedreira,Márcio dos Santos; Almeida,Paulo José Presidio; Santos,Alana Batista dos.
The objective of this study was to evaluate the effects inclusion of 0%, 33.3%, 66.7% and 100% natural matter (NM) of mesquite pod meal (MPM), in substitution of corn, on the intake, digestibility and feeding behavior of lactating Saanen goats. The forage:concentrate ratio in the diet was 40:60, using elephant grass silage as a forage source. Eight adult lactating goats with about 60 days in milk and weighting 50 kg were divided into two 4 × 4 latin squares and four 17-day experimental periods. Dry matter (DM), crude protein (CP) and total digestible nutrient (TDN) intakes were not influenced by MPM levels. Ether extract (0.51; 0.34; 0.36; 0.20 kg/day) and non-fiber carbohydrate (NFC) (0.54; 0.53; 0.49; 0.36 kg/day) intakes showed a linear effect with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alternative foods; Digestibility; Ingestive behavior; Intake; Prosopis juliflora; Semiarid.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000200004

Juazeiro hay in diets of Morada Nova sheep
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Costa,Marcus Roberto Góes Ferreira; Carneiro,Maria Socorro de Souza; Pereira,Elzânia Sales; Morais Neto,Luiz Barreto de.
This study evaluated intake and apparent digestibility of the nutrients in the diet of Morada Nova sheep that received diets containing increasing levels of juazeiro hay in substitution of Tifton 85 bermudagrass hay (0, 33, 67 and 100%). Sixteen non castrated male sheep, weighing an average of 26.75 kg, were used, placed in individual metabolic cages and distributed in a completely randomized block design with four treatments and four replications. Intakes of dry matter, organic matter, crude protein, ether extract, neutral detergent fiber, total carbohydrates, fibrous carbohydrates and non-fibrous carbohydrates and total digestible nutrients were not influenced by the addition of juazeiro hay to the diets, with mean values of 1,042.78 and 595.59 g/day of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Roughage; Semiarid; Zizyphos joazeiro.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001100033

Fodder salt fed to small ruminants
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Oliveira,Gabriel Jorge Carneiro de; Jaeger,Soraya Maria Palma Luz; Bagaldo,Adriana Regina; Oliveira,Paulo Andrade de.
The price of the products used for animal supplementation and the existence of a rich native flora of eudicotyledon forage, drove the idea for develop a technique feed supplementation aiming improve livestock yield levels in the semiarid zone. The fodder salt technique has been developed by the Tropical Zootechnical Rsearch Group at the Centro de Ciências Agrárias Ambientais e Biológicas da Universidade Federal do Recôncavo da Bahia (CCAAB/UFRB). Defined as a mixture of mineral salt and ground eudocotyledon forage hay, among them, some xerophitas species, the"fodder salt" consisting to a low cost technique with high applicability potential for ruminant production in semiarid environment. The salt controls consumption, for it facilitates the offer of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caatinga; Forrage; Livestock; Semiarid; Sustaintability.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010001300039

Divergence of the fermentative and bromatological characteristics of 25 sorghum hybrid silages
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Silva,Thiago Carvalho da; Santos,Edson Mauro; Macedo,Carlos Henrique Oliveira; Lima,Milena Araújo de; Bezerra,Higor Fábio Carvalho; Azevêdo,José Augusto Gomes; Rodrigues,José Avelino Santos; Oliveira,Juliana Silva de.
The objective of this study was to evaluate the divergence of bromatological and fermentative characteristics of silages of 25 sorghum (Sorghum bicolor L. Moench) hybrids. The experimental design was completely randomized with 25 treatments and four replications. The mean values of pH differed with variation from 3.45 to 3.87 for hybrids 866005 and 870051, respectively, and the mean pH value was 3.66. The average percentage of lactic acid ranged from 2.90 to 7.43 dag/kg of dry matter (DM) in hybrids 870035 and 866005, respectively, with an average of 4.65 dag/kg DM. Through cluster analysis by the Tocher method and average Euclidean distance based on the fermentative characteristics, five groups were formed: one with 18 hybrids, another with four and three...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crude protein; Forage conservation; Non-fiber carbohydrates; Semiarid.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000500007

Sugarcane bagasse as exclusive roughage for dairy heifers
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Inácio,Jonas Gomes; Ferreira,Marcelo de Andrade; Silva,Randerson Cavalcante; Silva,Janaina de Lima; Oliveira,Júlio César Vieira de; Santos,Djalma Cordeiro dos; Soares,Luciana Felizardo Pereira; Campos,José Maurício de Souza.
ABSTRACT The objective of this study was to evaluate the effect of different concentrate levels (40, 50, 60, and 70% on dry matter basis) on intake, digestibility of nutrients, and performance of heifers fed sugarcane bagasse as exclusive roughage. Twenty Girolando heifers, with an average body weight of 198±25.6 kg were assigned to a completely randomized design, established according to body weight. The intake of dry matter (5.12 to 7.73 kg d-1), organic matter (4.72 to 7.32 kg d-1), crude protein (0.71 to 1.05 kg d-1), and digestible organic matter (3.09 to 4.77 kg d-1) linearly increased with the inclusion of concentrate in the diets. The final weight (238 to 299 kg d-1), body weight gain (0.50 to 1.20 kg d-1), and total weight gain (35.2 to 83.6 kg...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Agro-industrial waste; Digestibility; Intake; Morphometry; Rearing; Semiarid.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000100080

Spineless cactus as a replacement for wheat bran in sugar cane-based diets for sheep: intake, digestibility, and ruminal parameters
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Lins,Stephany Emyle Barbosa; Pessoa,Ricardo Alexandre Silva; Ferreira,Marcelo de Andrade; Campos,José Maurício de Souza; Silva,José Augusto Bastos Afonso da; Silva,Janaina de Lima; Santos,Stefanie Alvarenga; Melo,Tobias Tobit de Barros.
ABSTRACT - The objective of this study was to evaluate the effect of replacing wheat bran by spineless cactus (0, 25, 50, 75, and 100%) in sugar cane-based diets on intake and nutrient digestibility and ruminal parameters of sheep. Five sheep (Santa Inês; average initial weight of 34.0±3.6 kg) were fitted with cannulas in the rumen and then assigned to a 5 × 5 Latin square design. The maximum dry matter (DM; 1414 g d−1), digestible organic matter (658 g d−1), and neutral detergent fiber corrected for ash and protein (NDFap; 425 g d−1) intakes were estimated by replacing 80.2, 89.9, and 50.5% of wheat bran. Dry matter and crude protein digestibility increased by 0.60 and 0.85 g kg-1 of DM. With the replacement of 57.1 and 62.2% of wheat bran, a maximum rate...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal nutrition; Cactaceous; Dry season; Feed intake; Rumen fermentation; Semiarid.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000100026

Microbial and fermentation profiles, losses and chemical composition of silages of buffel grass harvested at different cutting heights
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Pinho,Ricardo Martins Araujo; Santos,Edson Mauro; Carvalho,Gleidson Giordano Pinto de; Silva,Ana Paula Gomes da; Silva,Thiago Carvalho da; Campos,Fleming Sena; Macedo,Carlos Henrique Oliveira.
The present study evaluated the microbial population, fermentation profile, losses and dry matter recovery, and chemical composition of silages of buffel grass at different cutting heights. To evaluate the microbial fermentation dynamics, the treatments resulted from a 4 × 5 factorial combination consisting of 4 cutting heights and 5 fermentation periods, in a completely randomized design with three replications. The fermentation was evaluated at the end of 1, 3, 7, 15 and 30 days. The other characteristics of silages with 30 days were evaluated following a completely randomized design with four treatments, consisting of 4 cutting heights (30, 40, 50 and 60 cm), and five replications. Fermentation period and cutting height effects and interaction between...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cenchrus ciliaris; Enterobacteria; Lactic acid; Microbiology; Semiarid.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013001200003

Reproductive and fat body cycles of Tropidurus hispidus and Tropidurus semitaeniatus (Squamata, Tropiduridae) in a caatinga area of northeastern Brazil
Provedor de dados: Revista Chilena de Historia Natural
Autores: RIBEIRO,LEONARDO B.; SILVA,NAISANDRA B.; FREIRE,ELIZA M. X.
This study assessed the reproductive and fat body cycles of Tropidurus hispidus (Spix, 1825) and T. semitaeniatus (Spix, 1825) in an area of caatinga in the Serido of Rio Grande do Norte, Brazil, from October 2006 to May 2008. In both species, the females were reproductively active from the middle of the dry season to the beginning of the rainy season. Female reproductive activity was influenced by precipitation, whereas males exhibited spermatozoa in their testes throughout the year, and their reproductive activity was not related to any of the climatic variables analyzed. Mean clutch size (± SD) was 8.1 ± 2.0 and 2.1 ± 0.6 eggs in T. hispidus and T. semitaeniatus, respectively, and was significantly related to female body size only in T. hispidus. The...
Tipo: Journal article
Palavras-chave: Body size-fecundity; Clutch size; Minimum size at maturity; Reproduction; Semiarid.
Ano: 2012
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2012000300005

Antimicrobial activity of natural products from Myracrodruon urundeuva Allemão (Aroeira-do-sertão)
Provedor de dados: Revista Cubana de Plantas Medicinales
Autores: Lopes Gomes,Vangerlan Tiago; Pereira Chaves,Thiago; Batista Alencar,Laianne Carla; Coelho Dantas,Ivan; Dantas de Medeiros,Ana Cláudia; de Castro Felismino,Delcio.
Introduction: Myracrodruon urundeuva Allemão (Anacardiaceae) is a plant from the Brazilian semiarid region with medicinal properties against various diseases. Objective: to screen the phytochemistry and determine the antimicrobial activity of the hydroalcoholic extract from the bark of this plant. Methods: the extract was obtained by maceration and subjected to qualitative phytochemical tests and in vitro antimicrobial activity assays against gram-positive and gram-negative bacteria and fungi. Results: among the phytochemical compounds stood out tannins, flavonoids and alkaloids. The extract was effective against Staphylococcus aureus, Klebsiella pneumoniae and Enterococcus faecalis. Conclusions: Myracrodruon urundeuva presents compounds of high...
Tipo: Journal article
Palavras-chave: Medicinal plants; Myracrodruon urundeuva; Semiarid; Ethnopharmacology; Secondary metabolites; Antimicrobial activity.
Ano: 2013
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47962013000400004

Soil biochemistry and microbial activity in vineyards under conventional and organic management at Northeast Brazil
Provedor de dados: Scientia Agricola
Autores: Freitas,Nicácio de Oliveira; Yano-Melo,Adriana Mayumi; Silva,Fábio Sérgio Barbosa da; Melo,Natoniel Franklin de; Maia,Leonor Costa.
The São Francisco Submedium Valley is located at the Brazilian semiarid region and is an important center for irrigated fruit growing. This region is responsible for 97% of the national exportation of table grapes, including seedless grapes. Based on the fact that organic fertilization can improve soil quality, we compared the effects of conventional and organic soil management on microbial activity and mycorrhization of seedless grape crops. We measured glomerospores number, most probable number (MPN) of propagules, richness of arbuscular mycorrhizal fungi (AMF) species, AMF root colonization, EE-BRSP production, carbon microbial biomass (C-MB), microbial respiration, fluorescein diacetate hydrolytic activity (FDA) and metabolic coefficient (qCO2). The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vitis vinifera L.; Arbuscular mycorrhizal fungi; Semiarid; Soil microbial activity; Sustainable agriculture.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000200013

Different physiological responses under drought stress result in different recovery abilities of two tropical woody evergreen species
Provedor de dados: Acta Botanica Brasilica
Autores: Frosi,Gabriella; Harand,Wolfgang; Oliveira,Marciel Teixeira de; Pereira,Silvia; Cabral,Simone Pereira; Montenegro,Abelardo Antônio de Assunção; Santos,Mauro Guida.
ABSTRACT The effects of water deficit on physiological and biochemical variables of young plants of two tropical woody species, Pachira aquatica and Sterculia foetida, and their recovery abilities were measured. Leaf water potential, gas exchange and selected carbon metabolism components were measured in a greenhouse experiment with control, moderate and severe water deficit treatments. Under severe drought stress, gas exchange and chlorophyll fluorescence decreased in both species compared to their respective controls. After rehydration, P. aquatica and S. foetida showed a partial and full recovery of the measured variables, respectively. In addition, a decrease and an increase in photosynthetic pigments were observed for P. aquatica and S. foetida,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chlorophyll fluorescence; Climate changes; Gas exchange; Semiarid; Water deficit.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000200153

First report of modern pollen deposition in moss polsters in a semiarid area of Bahia, Brazil
Provedor de dados: Acta Botanica Brasilica
Autores: Santos,Daiane Alves dos; Lima e Lima,Luciene Cristina; Santos,Francisco de Assis Ribeiro dos; Silva,Francisco Hilder Magalhães e.
Recent studies have shown that pollen analyses of natural substrates can produce data valuable for understanding the local pollen productivity and dispersal, deposition, and preservation potential of pollen grains. In this study, we aimed to acquire novel information about the dynamics and preservation of pollen in Caatinga environment through the palynological study of moss polsters. Samples of moss polsters in soil (MPS) and on rock (MPR) were collected from the Canudos Biological Station in the Bahia State (Brazil) and subjected to standard chemical treatments for the extraction of pollen residues. In total, 372 pollen types were recorded from the samples of which the taxonomical affinity of 140 was determined. The most represented families were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brazilian NE; Moss; Natural pollen trap; Pollen rain; Semiarid.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000400532

Borreria apodiensis (Rubiaceae: Spermacoceae), a new species from Ceará and Rio Grande do Norte, Brazil
Provedor de dados: Acta Botanica Brasilica
Autores: Souza,Elnatan Bezerra de; Miguel,Laila Mabel; Cabral,Elsa Leonor; Nepomuceno,Francisco Álvaro Almeida; Loiola,Maria Iracema Bezerra.
ABSTRACT A new species of Borreria (Rubiaceae) from Chapada do Apodi in northeastern Brazil is described and illustrated. A distribution map, illustrations, a conservation assessment, a key to morphologically similar taxa and images of the seeds and pollen grains are provided.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caatinga; Northeastern Brazil; Pollen grains; Rubioideae; Seeds; Semiarid; Taxonomy.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000200283

Filamentous fungi isolated from the rhizosphere of melon plants (Cucumis melo L. cv. Gold Mine) cultivated in soil with organic amendments
Provedor de dados: Acta Botanica Brasilica
Autores: Coutinho,Flavia Paiva; Cavalcanti,Maria Auxiliadora de Queiroz; Yano-Melo,Adriana Mayumi.
Rhizosphere soil samples were collected in a semiarid area, in the region of the São Francisco River valley, Petrolina, Pernambuco state, Brazil, to study the diversity of filamentous fungi in a soil cultivated with melon (Cucumis melo L. cv. Gold Mine) and receiving different organic amendments: Treatment 1 (control, without organic compost); T2 (77% coconut fiber, 20% goat manure and 3% K2SO4); T3 (10% Ricinus communis leaves and stems, 50% Pennisetum purpureum leaves and 40% goat manure); T4 (77% coconut fiber, 20% goat manure and 3% termophosphate); T5 (47% Pennisetum purpureum leaves, 50% goat manure and 3% K2SO4); and T6 (57% Pennisetum purpureum leaves, 40% goat manure and 3% termophosphate). Fungal isolation was carried out by the serial dilution...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Semiarid; São Francisco River valley; Soil amendments; Microorganism.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062010000100032

Morpho-physiology, yield, and water-use efficiency ofOpuntia ficus-indica irrigated with saline water
Provedor de dados: Acta Scientiarum: Agronomy
Autores: Fonseca, Varley Andrade; Santos, Marcelo Rocha dos; Silva, João Abel da; Donato, Sérgio Luiz Rodrigues; Santos Rodrigues, Carlindo; Brito, Cleiton Fernando Barbosa.
Forage cactus pear is considered a xerophilic plant, so it is adapted to harsh semiarid conditions and is a forage resource of significant importance for animal production in regions that are subject to food shortage and long dry periods. We aimed to evaluate the morphometric and physiologic characteristics and water-use efficiency of ‘Gigante’ forage cactus pear under different settings of irrigation depth and irrigation intervals with saline water. The treatments included seven conditions of water application: rainfed, 5 liters of water per linear meter every 15 days; 7% reference evapotranspiration (ETo) with a 15-day irrigation interval; 15% ETo with a 7-day irrigation interval; 33% ETo with a 3-day irrigation interval; 50% ETo with a 2-day irrigation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Semiarid; Irrigation management; Salinity.
Ano: 2019
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42631

Morpho-physiology, yield, and water-use efficiency ofOpuntia ficus-indica irrigated with saline water
Provedor de dados: Acta Scientiarum: Agronomy
Autores: Fonseca, Varley Andrade; Santos, Marcelo Rocha dos; Silva, João Abel da; Donato, Sérgio Luiz Rodrigues; Santos Rodrigues, Carlindo; Brito, Cleiton Fernando Barbosa.
Forage cactus pear is considered a xerophilic plant, so it is adapted to harsh semiarid conditions and is a forage resource of significant importance for animal production in regions that are subject to food shortage and long dry periods. We aimed to evaluate the morphometric and physiologic characteristics and water-use efficiency of ‘Gigante’ forage cactus pear under different settings of irrigation depth and irrigation intervals with saline water. The treatments included seven conditions of water application: rainfed, 5 liters of water per linear meter every 15 days; 7% reference evapotranspiration (ETo) with a 15-day irrigation interval; 15% ETo with a 7-day irrigation interval; 33% ETo with a 3-day irrigation interval; 50% ETo with a 2-day irrigation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Semiarid; Irrigation management; Salinity.
Ano: 2019
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42631

Nopalea cactus pear fertilized with nitrogen: morphometric, productive and nutritional characteristics
Provedor de dados: Acta Scientiarum: Animal Sciences
Autores: Leite, João Ricardo Avelar; Sales, Eleuza Clarete Junqueira de; Monção, Flávio Pinto; Guimarães, Adriano de Souza; Rigueira, João Paulo Sampaio; Gomes, Virgílio Mesquita.
 This study aimed to evaluate the structural, productive and nutritional characteristics of cactus pear (Nopalea cochenillifera Salm Dyck. cv. Miúda/Doce) under five nitrogen doses and two planting orientations. A randomized block design in a 5 x 2 factorial scheme was used in the scheme: five nitrogen doses (0, 150, 300, 450 and 600 kg of N ha-1), and two planting orientations (North/South and East/West), with three replicates. Except for the thickness of the secondary (p = 0.04) and tertiary cladodes (p = 0.02), the morphometric characteristics of the cactus pear were not influenced by the nitrogen doses (p &gt; 0.05). The mean height was 120 cm, the areas of the primary, secondary and tertiary cladodium were 160.9; 208 and 158.4 cm², respectively. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ciências Agrárias; Zootecnia; Forragicultura e Pastagens biomass; Management; Morphometry; Semiarid; Viability.
Ano: 2018
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/38325

The family Bignoniaceae in the Environmental Protection Area Serra Branca, Raso da Catarina, Jeremoabo, Bahia, Brazil
Provedor de dados: Acta Scientiarum: Biological Sciences
Autores: Silva, Luiza Regina; Castro, Milene Maria da Silva; Conceição, Adilva de Souza.
Bignoniaceae comprises 82 genera and 827 species distributed mostly in tropical and subtropical regions, with a few species in temperate climates, and is most diverse in South America. The Brazil is the center of diversity for the group, with about 406 species in 33 genera, of which 22 genera and 90 species occur in the Caatinga. The floristic survey of Bignoniaceae in the Environmental Protection Area Serra Branca included analysis of 31 specimens collected from August 2009 to February 2012. The analyses were supplemented with dried collections from the following herbaria: ALCB, HRB and HUEFS. Nine genera and 11 species were recorded: [Anemopaegma Mart ex DC; Bignonia L.; Cuspidaria DC.; Fridericia Mart.; Handroanthus Mattos; Jacaranda Juss; Lundia DC.;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 2.03.06.00-8 floristic; Semiarid; Biodiversity Botânica Aplicada.
Ano: 2016
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/31581

Occurrence and characterization of entomogenic galls in an area of Cerrado sensu stricto and Gallery forest of the state of Bahia, Brazil
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: SILVA,APARECIDA RAVENE F. DA; NOGUEIRA,RAVENA M.; COSTA,ELAINE C.; CARVALHO-FERNANDES,SHEILA P.; SANTOS-SILVA,JULIANA.
Abstract We surveyed insect galls in an area of Cerrado sensu stricto and Gallery forest in the municipality of Caetité (BA) to contribute to current knowledge of the local flora and its associated gall-inducing insects. Monthly collections were made between February/2015 and January/2016, totaling 12 field campaigns (involving two or three people and lasting four hours) that followed an established path through the countryside. A total of 63 gall morphotypes were identified on 47 host plant species belonging to 22 families; 17 morphotypes were found in the Gallery forest and 46 in Cerrado vegetation. The plant families showing the greatest gall richness were Leguminosae (n=15), Myrtaceae (n=9), and Asteraceae (n=7). The species with the greatest number of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cecidomyiidae; Plant-insect interactions; Leguminosae; Semiarid.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000602903

Growth of cactus pear cv. Miúda under different salinity levels and irrigation frequencies
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: FREIRE,JOELMA DE L.; SANTOS,MÉRCIA VIRGINIA F. DOS; DUBEUX JÚNIOR,JOSÉ CARLOS B.; BEZERRA NETO,EGÍDIO; LIRA,MÁRIO DE A.; CUNHA,MÁRCIO V. DA; SANTOS,DJALMA C. DOS; AMORIM,SILVANIA O. DE; MELLO,ALEXANDRE CARNEIRO L. DE.
Abstract Soil and water salinity are considered the main limiting factors of plant production. This work aimed to evaluate the influences of irrigation frequency and soil salinity on the development of cactus pear cv. Miúda (Nopalea cochenillifera Salm Dyck). The experiment was conducted in factorial arrangement of four salinity levels: 0.3 (control), 0.5 (low), 1.5 (medium) and 3.6 (high salinity) (ds m-1), associated with four irrigation frequencies (each 7, 14, 21 and 28 days) and two soil textures (sandy and sandy loam) in a randomized block design with four replicates. One cladode was planted in each polyethylene pot containing 10 kg of soil. The soil texture influenced some of the morphological characteristics of the cactus pear, so that plants grown...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cladodes; Forage; Salt stress; Semiarid.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703893

HOW STRONG IS THE RELATIONSHIP BETWEEN RAINFALL VARIABILITY AND CAATINGA PRODUCTIVITY? A CASE STUDY UNDER A CHANGING CLIMATE
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: SALIMON,CLEBER; ANDERSON,LIANA.
ABSTRACT Despite the knowledge of the influence of rainfall on vegetation dynamics in semiarid tropical Brazil, few studies address and explore quantitatively the various aspects of this relationship. Moreover, Northeast Brazil is expected to have its rainfall reduced by as much as 60% until the end of the 21st Century, under scenario AII of the IPCC Report 2010. We sampled and analyzed satellite-derived monthly rainfall and a vegetation index data for 40 sites with natural vegetation cover in Paraíba State, Brazil from 2001 to 2012. In addition, the anomalies for both variables were calculated. Rainfall variation explained as much as 50% of plant productivity, using the vegetation index as a proxy, and rainfall anomaly explained 80% of the vegetation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Paraíba; Rainfall anomaly; Ecosystem productivity; Semiarid; Vegetation index.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000502121

Phosphorus dynamics in a highly polluted urban drainage channel-shallow reservoir system in the Brazilian semiarid
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: ARAÚJO,GERMÁRIO M.; LIMA NETO,IRAN E.; BECKER,HELENA.
Abstract: This paper investigates phosphorus dynamics in a highly polluted system composed of a drainage channel followed by a shallow reservoir in the city of Fortaleza, Brazilian semiarid. During the dry season, significant non-point source loads of total phosphorus originated from residences unconnected to sewers were identified along the channel, resulting in an increasing flow rate of untreated sewage towards the reservoir. During the rainy season, as a consequence of dilution, phosphorus concentrations decreased by about 5-fold. The results also revealed that the reservoir was acting similarly to a waste stabilization pond, with phosphorus removal efficiency of about 33%. Assuming one-dimensional flow for the channel and complete mixing for the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diffuse pollution; Eutrophication; Nutrients; Semiarid; Urbanization; Water quality modeling.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000500902

A close look at above ground biomass of a large and heterogeneous Seasonally Dry Tropical Forest - Caatinga in North East of Brazil
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: CASTANHO,ANDREA D.A.; COE,MICHAEL; ANDRADE,EUNICE M.; WALKER,WAYNE; BACCINI,ALESSANDRO; CAMPOS,DIEGO A.; FARINA,MARY.
Abstract  This work is focused on characterizing and understanding the aboveground biomass of Caatinga in a semiarid region in northeastern Brazil. The quantification of Caatinga biomass is limited by the small number of field plots, which are inadequate for addressing the biome’s extreme heterogeneity. Satellite-derived biomass products can address spatial and temporal changes but they have not been validated for seasonally dry tropical forests. Here we combine a compilation of published field phytosociological observations with a new 30m spatial resolution satellite biomass product. Both data were significantly correlated, satellite estimates consistently captured the wide variability of the biomass across the different physiognomies (2-272 Mg/ha). Based...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Above ground biomass; Caatinga; Physiognomy; Remote sensing; Seasonally dry tropical forest; Semiarid.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100604

Drought monitoring in the Brazilian Semiarid region
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: ALVALÁ,REGINA C.S.; CUNHA,ANA PAULA M.A.; BRITO,SHEILA S.B.; SELUCHI,MARCELO E.; MARENGO,JOSÉ A.; MORAES,OSVALDO L.L.; CARVALHO,MAGOG A.
ABSTRACT Drought is a natural and recurrent phenomenon. It is considered ‘a natural disaster’ whenever it occurs in an intensive manner in highly populated regions, resulting in significant damage (material and human) and loss (socioeconomic). This paper presents the efforts developed to monitor the impact of drought in the semiarid region of Northeast Brazil. In this scope, information from different sources is compiled to support the evaluation and identification of impacted municipalities, with the main objective of supporting emergency actions to mitigate their impact. In the semiarid region of Brazil there are frequent occurrences of dry periods during the rainy season, which, depending on the intensity and duration, can cause significant damage to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agriculture; Drought impacts; Drought monitoring; Semiarid; Dry farming; Northeast Brazil.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000200502

Nutritional quality of Pilosocereus gounellei using different spine removal and plant storage methods
Provedor de dados: Arquivo Brasileiro de Medicina Veterinária e Zootecnia
Autores: Magalhães,R.M.F.; Carneiro,M.S.S.; Castro,A.B.; Edvan,R.L.; Pereira,E.S.; Silva,S.F.; Torreão,J.N.C.
ABSTRACT This study aimed to evaluate the nutritional quality of Pilosocereus gounellei using different methods of spine removal and plant storage. A total of 600 P. gounellei cacti were randomly selected in 10 hectares of Caatinga. The experimental design was completely randomised using a 2 x 4 factorial arrangement and three replicates. The variables evaluated were the storage conditions (under trees; and ventilated storage facilities) and four types of spine removal techniques assessed 31 days after storage (fresh plants with spines [control]; use of flamethrowers before storage; slash-and-burn [“coivara”] before storage; and use of flamethrowers after storage). The P. gounellei subjected to slash-and-burn during the cladode harvest (cutting) process...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caatinga; Cactus; Semiarid; P. gounellei.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000601988

Hexapod decomposers of Serra de Santa Catarina, Paraíba, Brazil: an area with high potential for conservation of Caatinga biodiversity
Provedor de dados: Biota Neotropica
Autores: Ernesto,Matilde Vasconcelos; Liberal,Carolina Nunes; Ferreira,Aila Soares; Alves,Ana Claudia Firmino; Zeppelini,Douglas; Martins,Celso Feitosa; Pereira-Colavite,Alessandre; Creão-Duarte,Antônio José; Vasconcellos,Alexandre.
Abstract: In detritus-based trophic systems, springtails, dung beetles, saprophagous calyptrate flies and termites consume and fragment organic matter and control populations of decomposer microorganisms, exerting a strong influence on energy and nutrient fluxes. A faunal inventory of these four groups of hexapods was performed in Serra de Santa Catarina (SSC), an area of arboreal-shrub caatinga located in the state of Paraíba, with the purpose of characterizing the assemblages of these taxa, and highlighting their unique links to the local ecosystem. Samplings were performed in May, 2014, and April, 2015, both during the rainy season. Standard sampling protocols for biodiversity inventory of the various taxa were used, including both active and passive...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coleoptera; Collembola; Diptera; Isoptera; Seasonally Dry Tropical Forests; Semiarid.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032018000200303

Bignoniaceae in the Raso da Catarina Ecoregion, Bahia, Brazil
Provedor de dados: Biota Neotropica
Autores: Silva,Luiza Regina; Silva-Castro,Milene Maria da; Conceição,Adilva de Souza.
Abstract: This work presents a floristic survey of the family Bignoniaceae in the Raso da Catarina Ecoregion, Bahia, Brazil, considered as the main family of the Brazilian forests lianas. The samples analyzed were collected from September 2012 to May 2014. The analyses were supplemented with botanical collections kept in the herbaria: ALCB, HRB, HUEFS, IPA and PEUFR. The identifications were made based mainly on specialized bibliographies, protologues, photos of type collections and consulting of the collections in the herbaria that were visited. 11 genera and 20 species of the family were recorded. Fridericia Mart. and Handroanthus Mattos were the most representative genera (5spp.), followed by Jacaranda Juss (2spp.). The other genera presented only one...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Semiarid; Caatinga; Taxonomy; Diversity.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032018000400306

O gênero Mimosa L. (Leguminosae: Mimosoideae) na APA Serra Branca/Raso da Catarina, Bahia, Brasil
Provedor de dados: Biota Neotropica
Autores: Dourado,Diego Augusto Oliveira; Conceição,Adilva de Souza; Santos-Silva,Juliana.
This work consists of a floristic survey of the genus Mimosa L. in APA Serra Branca/Raso da Catarina, located in Jeremoabo, Bahia, Brazil. We analyzed specimens collected from June/2010 to October/2011 and collections deposited in the ALCB, HRB, HUEFS, and MBM herbaria. We registered 11 species distributed in two sections: Mimosa sect. Batocaulon DC. (Mimosa acutistipula (Mart.) Benth. var.acutistipula, M. adenophylla var. mitis Barneby, M. arenosa (Willd.) Poir. var. arenosa, M. caesalpiniifolia Benth., M. lewisii Barneby, M. misera Benth., M. piscatorum Barneby, M. quadrivalvis var. leptocarpa (DC.) Barneby, and M. tenuiflora (Willd.) Poir.) and Mimosa sect. Mimosa (M. pudica var. tetrandra (Humb. &amp; Bonpl. ex Willd.) DC. And M. sensitive L. var....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caatinga; Diversity; Floristic; Jeremoabo; Semiarid.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000400225

Anurans from the Middle Jaguaribe River Region, Ceará State, Northeastern Brazil
Provedor de dados: Biota Neotropica
Autores: Santana,Diego José; Mângia,Sarah; Silveira- Filho,Ricardo Rodrigues da; Silva Barros,Lívia Cláudia da; Andrade,Igor; Napoli,Marcelo Felgueiras; Juncá,Flora; Garda,Adrian Antonio.
The Middle Jaguaribe River region is a poorly sampled area in the Caatingas domain, located in the eastern Ceará State, northeastern Brazil. The Brazilian government agencies considered this region as a priority area for conservation and inventories. In order to fill this biodiversity knowledge gap, we conducted a ten-day rapid inventory of the anuran fauna from April 11 to 20, 2014, surveying different physiognomies of the region. We recorded 19 anuran species belonging to five families: Bufonidae (2), Hylidae (5), Leptodactylidae (9), Microhylidae (2) and Odontophrynidae (1). Most inventories of Caatinga amphibians published to date have been conducted inside protected areas and/or of high altitude (mesic areas known as "brejos de altitude"). The list we...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amphibians; Caatinga; Semiarid; Species list; Biodiversity.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032015000300201

Rediscovering a forgotten scientific collection in the Rio Grande do Norte State, Brazil: The herpetological collection of the zoologist José Santiago Lima-Verde
Provedor de dados: Biota Neotropica
Autores: Coelho-Lima,Alcéster Diego; Jucá,Marcelo Almeida De Sousa; Fonseca,Ellen Beatriz Fontes da; Medeiros,Leticia Cely Vieira de; Soares,Pamella Barbara Coutinho; Cunha,Paulo Victor Araujo; Passos,Daniel Cunha.
Abstract: The zoologist Dr. José Santiago Lima-Verde (1945-2019) made a number of major contributions to the field of animal biology in the northeastern Brazil, in particular through his research with snakes. While employed as a professor at Escola Superior de Agricultura de Mossoró, currently the Universidade Federal Rural do Semi-Árido, Prof. Lima-Verde established a herpetological collection which remained forgotten for a number of decades. In the present study, we describe the revitalization of this collection, which included the updating of the identification of the species and the compilation of the metadata on the collection, which is now named the Coleção Herpetológica Lima-Verde. We catalogued 80 specimens representing 30 species, including 23...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodiversity; Caatinga; Northeastern Brazil; Scientific Collections; Semiarid.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100205

Helminth parasites of Phyllodactylidae and Gekkonidae lizards in a Caatinga ecological station, northeastern Brazil
Provedor de dados: Biota Neotropica
Autores: Lima,Vandeberg F.; Brito,Samuel V.; Araujo Filho,João A.; Teles,Diêgo A.; Ribeiro,Samuel C.; Teixeira,Adonias A. M.; Pereira,Antonio M. A.; Almeida,Waltécio O.
Abstract We investigated the parasites of five lizard species belonging to Phyllodactylidae (Phyllopezus pollicaris and Gymnodactylus geckoides) and Gekkonidae (Hemidactylus agrius, Lygodactylus klugei and Hemidactylus brasilianus) families in a semiarid region of Brazil. Six nematode species were identified: Parapharyngodon alvarengai and Spauligodon oxkutzcabiensis (Pharyngodonidae), Physaloptera lutzi (Physalopteridae), Skrjabinelazia intermedia (Seuratidae), Trichospirura sp. (Rhabdochonidae) and Piratuba sp. (Onchocercidae), and a cestode species, Oochoristica sp. (Linstowiidae). The most prevalent species were Spauligodon oxkutzcabiensis, which infected P. pollicaris (75%), and Parapharyngodon alvarengai, which infected G. geckoides (29%). South...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Squamata; Nematoda; Cestoda; Geckos; Semiarid.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032017000400501

The genus Chamaecrista Moench in a fragment of the Ecological Station Raso da Catarina, Bahia, Brazil
Provedor de dados: Biota Neotropica
Autores: Correia,Cláudia Letícia de Souza Barros; Conceição,Adilva de Souza.
Abstract Chamaecrista has a Pantropical distribution, with some occurrences in Australia and temperate areas, and includes about 330 species, of which 266 occur in the Americas. The genus is represented in Brazil by 256 species, of which 97 are cited for the northeast Region. The Ecological Station Raso da Catarina (ESRC) is one of the largest areas of protected Caatinga and occupies about 105,282.00 ha., delimited by the coordinates 09°39’0.30” to 09°50’98.2” S and 38°26’57.5” to 38°29’32.6” W. The floristic survey of Chamaecrista in the ESRC included analysis of specimens collected from March 2010 and October 2011. The analyses were supplemented with dried collections from the following herbaria: ALCB, EAC, HRB, HUEFS and MBM. The genus is represented in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Floristics; Taxonomy; Semiarid; Caatinga; Diversity.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032017000200302

Ichthyofauna of Mundaú river basin, Ceará State, Northeastern Brazil
Provedor de dados: Biota Neotropica
Autores: Teixeira,Francisco Keilo; Ramos,Telton Pedro Anselmo; Paiva,Roney Emanuel Costa de; Távora,Marcelo Aguiar; Lima,Sergio Maia Queiroz; Rezende,Carla Ferreira.
Abstract Mundaú river basin is located at Center-North Ceará State and occupies a total area of 2,227 km2, including Estuário do Rio Mundaú Environmental Protection Area. This study aimed to catalog the fishes of this basin. Collections were performed with active and passive gear in 35 sampling sites, between 2012 and 2014, in several habitats (main channels, streams, floodplains, permanent and temporary pools, ponds, and dams). A total of 2,545 specimens were collected, belonging to 55 species distributed in 10 orders, 31 families, and 50 genera; 30 of these are strictly freshwater species, and 25 estuarine-marine species. Three species (Hemigrammus guyanensis Gery, 1995, H. rodwayi Durbin, 1909 and Poecilia sarrafae Bragança &amp; Costa, 2011) represent...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Intermittent river; Semiarid; Mid-Northeastern ecoregion; Freshwater neotropical fishes.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032017000100304

Leaf architecture of Rubiaceae Juss. from caatinga vegetation in Brazil
Provedor de dados: Biota Neotropica
Autores: Lima,Mirella Priscila de Souza; Soares,Adriana; Sousa,José Lucas Ribeiro de; Carvalho,Márcia Santos; Porto,Jorge Marcelo Padovani; Braga,Francyane Tavares.
Abstract: The study and characterization of leaf venation plays a key role in the recognition of taxonomic groups that have been identified mainly based on reproductive traits. This study aimed at characterizing the pattern of leaf venation of Rubiaceae, recognizing individual characters among the taxa of this group and testing the use of leaf architecture as a taxonomic tool capable of providing vegetative and diagnostically characteristics between species. Leaves of 14 species distributed in eight genera from Rubiaceae were diaphanized and classified. The study area is located in Área de Proteção Ambiental Serra Branca/Raso da Catarina, Bahia State, Brazil. The characterization of secondary veins, including type, spacing and number of pairs, third...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diaphanization; Leaf veining; Raso da Catarina; Semiarid.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000100203

Boraginales Juss. ex Bercht. &amp;amp; J.Presl in the Ecoregion Raso da Catarina, Bahia, Brazil
Provedor de dados: Biota Neotropica
Autores: Vieira,Diego Daltro; Melo,José Iranildo Miranda de; Conceição,Adilva de Souza.
Raso da Catarina is one of the eight Ecoregions recognized for the Caatinga biome. This work includes the taxonomic study of Boraginales Juss. ex Bercht. &amp; J.Presl in the Ecoregion Raso da Catarina, Bahia state, Brazil. The samples analyzed were collected from March 2009 to July 2013. The analyses were supplemented with dried collections kept in the herbaria: ALCB, IPA, HRB, HST, HTSA, HUEFS, HVASF, PEUFR and UFP. Two families, five genera and 16 species were recorded. The Cordiaceae family was represented by genera Cordia L. [C. glabrata (Mart.) A.DC., C. rufescens A.DC., C. superba Cham. and C. trichotoma (Vell.) Arráb. exSteud.] and Varronia P.Browne [V. curassavica Jacq., V. globosa Jacq., V. leucocephala (Moric.) J.S.Mill. and V. leucomalloides...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Floristic; Taxonomy; Semiarid; Caatinga; Diversity.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032015000300206

Malvoideae Burnett (Malvaceae) in the Environmental Protection Area Serra Branca, Raso da Catarina, Jeremoabo, Bahia, Brazil
Provedor de dados: Biota Neotropica
Autores: Lima,Jéssica Batista; Conceição,Adilva de Souza.
Abstract Malvoideae is the largest subfamily of Malvaceae, including 110 genera and 1,730 species distributed predominantly in tropical regions, with a few representatives in temperate regions. In Brazil, the subfamily occurs throughout the country and all phytogeographic domains. The floristic survey of Malvoideae in the Environmental Protection Area Serra Branca included analysis of 43 specimens collected from August 2011 to February 2013. The analysis were supplemented with dried collections from the following herbaria: ALCB, HUEFS and MAC. Six genera and sixteen species were recorded. Sida L. was the most representative genus with five species [S. angustissima A.St.-Hil., S. castanocarpa Krapov., S. cordifolia L., S. galheirensis Ulbr., S. linifolia...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodiversity; Morphology; Taxonomy; Caatinga; Semiarid.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032016000400301

Bombacoideae, Byttnerioideae, Grewioideae and Helicterioideae (Malvaceae s.l.) in the Raso da Catarina Ecoregion, Bahia, Brazil
Provedor de dados: Biota Neotropica
Autores: 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

Agronomic characteristics and chemical composition of Gliricidia sepium grown under different residual heights in different seasons
Provedor de dados: Ciencia e Investigación Agraria, Revista Latinoamericana en Ciencias de la Agricultura
Autores: Silva,Shirlenne F; Carneiro,Maria S. de S.; Edvan,Ricardo L; Pereira,Elzânia S; Neto,Luiz B. de Morais; Pinto,Andréa P; Camilo,Danilo de A.
This research was conducted to evaluate the agronomic characteristics and chemical composition of Gliricidia sepium (Jacq.) Steud grown under different residual heights in different seasons. The experimental design used was a complete randomized block in a split-plot. The plots consisted of three residual heights (70, 90 and 110 cm), and the subplots were four seasons (fall, winter, spring and summer) with four replicates. There was no (P&amp;gt;0.05) interaction between season and residual heights for agronomic characteristics. However, these features were influenced by the cutting season, with no significant effect (P&amp;gt;0.05) on residual height. Significant effects (P&lt;0.05) were observed for dry matter, mineral matter, acid detergent fiber and...
Tipo: Journal article
Palavras-chave: Cutting management; Harvest time; Legumes; Nutritional value; Semiarid.
Ano: 2017
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202017000100004

Biological aspects of the leafminer Liriomyza sativae (Diptera: Agromyzidae) on melon (Cucumis melo L.)
Provedor de dados: Ciência Rural
Autores: Araujo,Elton Lucio; Nogueira,Carlos Henrique Feitosa; Menezes Netto,Alexandre Carlos; Bezerra,Carlos Eduardo Souza.
The leafminer Liriomyza sativae Blanchard is an important insect pest on melon crops in Brazil. However, the information about its biology on melon (Cucumis melo L.) is scarce. Therefore, the aim of this research was to know some biological aspects of this pest, reared on melon plants, under laboratory conditions at 25°C. Our results showed that the biological cycle of L. sativae lasts 15.9±0.04 days (egg-adult), namely: egg (2.7±0.01 days), larva (4.1±0.03 days) and pupa (9.1±0.03 days). The sex ratio is 0.51 and the females live (19.3±1.09 days) longer than males (16.2±0.96 days). These results can help in the integrated management of L. sativae on melon crops and improve the systems for rearing this leafminer in laboratory.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Insect pest; Cucurbitaceae; Biology; Semiarid.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013000400003