Consulta: subjectFacets:"Floodplains"
Registros recuperados: 8
Data/hora: 10/06/2024 08:22:41

First records of Freshwater Bivalves of Ilha Grande National Park, Paraná, Brazil
Provedor de dados: 76
Autores: Ragonha,Flávio Henrique; Pinha,Gisele Daiane; Petsch,Danielle Katharine; Mansur,Maria Cristina Dreher; Takeda,Alice Michiyo.
The Ilha Grande National Park, Paraná, Brazil, is located in the Upper Paraná River and has characteristics typical of a floodplains. This protected area includes lagoons connected and disconnected to the Paraná River, although the latter also connect during periods of high water level, thus composing a heterogeneous group of lacustrine environments. The enormous potential the flora and fauna diversities are still little known to the region, as can be seen through benthic invertebrates, inclunding bivalves mollusks. The granulometric composition of these floodplain lagoons was formed mainly by mud and very fine sand. Furthermore, organic matter composition was predominantly of fine particulate. The other abiotic factors differed from lagoons located within...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Floodplains; Lagoons; Native species; Invaders.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212014000100002

Diversificação de cultivares de arroz no manejo sustentável da brusone (Magnaporthe oryzae) em várzeas tropicais no estado do Tocantins.
Provedor de dados: 14
Autores: SILVA-LOBO, V. L.; SOUZA, A. C. A. de; GONÇALVES, F. J.; FILIPPI, M. C. C. de; PRABHU, A. S.
O estudo hora apresentado objetivou determinar a melhor combinação entre as cultivares geneticamente melhoradas, visando menor severidade de brusone nas folhas e nas panículas para uma determinada população de patógenos como método sustentável de controle da doença em várzeas tropicais.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Tocantins; Várzea Tropical; Arroz; Oryza Sativa; Brusone; Doença de Planta; Manejo; Várzea; Rice; Plant diseases and disorders; Blast disease; Magnaporthe oryzae; Floodplains.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127028

Efeito de Sistemas de Manejo Alimentar no Desempenho de Bubalinos na Bacia do Rio Araguari no Estado do Amapá.
Provedor de dados: 14
Autores: MONTAGNER, A. E. A. D.; MONTAGNER, D.; FATURI, C.; SANTOS, B. R. C. dos; HEINZEN, E. L.
A fragilidade ambiental é característica peculiar dos campos inundáveis da Bacia do Rio Araguari devido a sua geomorfologia e hidrologia associada. Nesse cenário ocorre a maior parte da bubalinocultura amapaense, que possui o segundo maior rebanho bubalino brasileiro. Com o objetivo de reduzir a taxa de lotação animal nas áreas inundáveis e obter melhores índices zootécnicos, avaliou-se o desempenho de bubalinos (Bubalus bubalis) em sistema de recria/terminação com Urochloa brizantha (SYN Brachiaria) 'Xaraés' em áreas que não estão sujeitas a inundação (terras firmes/cerrado) na Bacia do Rio Araguari, estado do Amapá. O experimento foi realizado na época de chuvas, com 18 bubalinos mestiços Murrah x Mediterrâneo sob três tratamentos e duas repetições:...
Tipo: Folhetos
Palavras-chave: Pastagem Nativa; Gramínea Forrageira; Brachiaria Brizantha; Vegetação; Amazonia; Floodplains.
Ano: 2022
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1145107

Gender and Local Floodplain Management Institutions--A Case Study from Bangladesh
Provedor de dados: 31
Autores: Sultana,   Parvin; Thompson,   Paul M.
Floodplain wetlands are the major common pool natural resource in Bangladesh. Mostly men fish, and both men and women collect aquatic plants and snails. Case studies contrast a women-only, men-only, and mixed community based organization (CBO), each of which manages a seasonal floodplain wetland. The two CBOs in which women hold key positions are in Hindu communities where more women use aquatic resources, work for an income, and belong to other local institutions. In the oldest of these CBOs, more women have gradually become office bearers as their recognition in the community has grown. In the Muslim community, only a few women collect aquatic resources and in this community most women do not perceive floodplain natural resource constraints to be very...
Tipo: Working or Discussion Paper
Palavras-chave: Floodplains; Fisheries; Community; Bangladesh; Resource /Energy Economics and Policy.
Ano: 2006
URL: http://purl.umn.edu/42509

New species of the harvestmen Hutamaia (Laniatores: Gonyleptidae: Ampycinae) and generic diagnosis
Provedor de dados: 103
Autores: Tourinho,Ana Lúcia; Mendes,Amanda Cruz.
We add three new species to the formerly monotypic Amazonian Hutamaia, Hutamaia maceta sp. nov. , Hutamaia plei sp. nov. and Hutamaia trompsonica sp. nov. and compare them with the type species, Hutamaia caramaschii Soares &amp;amp; Soares, 1977. Hutamaia was known only from two localities: Humaitá, Amazonas, Brazil (type locality of the type species), and Madre de Dios, Peru. Herein we record species from the following additional localities, all in Brazil: Coari, Codajás, Juruá, Jutaí, Manacapuru, Tefé (state of Amazonas) and Gurupá (state of Pará), indicating that the genus has a widespread distribution in the Brazilian and Peruvian Amazon. Hutamaia is newly diagnosed by having yellowish granules on dorsal scutum, armature of coxa IV of males, metatarsi...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazonas-Solimões River; Floodplains; Neotropics; Opiliones; Taxonomy.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702014000500006

On occurrence, habitat specificity and natural history of adult tiger beetles (Coleoptera: Carabidae: Cicindelinae) near Manaus, Central Amazonia, and key to the larvae of tiger beetle genera
Provedor de dados: 36
Autores: ADIS,Joachim; PAARMANN,Wilfried; AMORIM,Maristela A.; ARNDT,Erik; FONSECA,Claudio R. V. da.
Over a seven year period from 1991 to 1997, 22 species of tiger beetles, representing nine genera, were recorded near Manaus, Brazil. In the Whitewaterfloodplains along the Rio Solimões-Amazonas (Ilha de Marchantaria), three diurnal species inhabit inundation forests and six species (two diurnal, four nocturnal) live in open areas. Data on their natural history and adaptation to living conditions in floodplains are presented. Fifteen species were located on non-flooded uplands (Reserva Florestal A. Ducke). Five diurnal species inhabit the forest floor, two species are canopy dwellers, and eight species (seven diurnal, one nocturnal) live in open areas on whitesand or laterite. Only one species, Pentacomia lacordairei, was found in both floodplain and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tiger beetles; Floodplains; Várzea; Terra firme; Amazon; Neotropics.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671998000300247

Composition, diversity and structure of vascular epiphytes in two contrasting Central Amazonian floodplain ecosystems
Provedor de dados: 39
Autores: Quaresma,Adriano C.; Piedade,Maria Teresa F.; Feitosa,Yuri Oliveira; Wittmann,Florian; Steege,Hans ter.
ABSTRACT Research focusing on assemblages of vascular epiphytes in the Amazon are scarce. This is especially true for Amazonian floodplain forests, for which only two previous studies have been published. We compared composition, richness and structure of epiphyte assemblages in white-water and black-water floodplains (várzea and igapó) in Central Amazonia in order to close knowledge gaps concerning the distribution and richness of epiphytes. We established sixteen 25x25 m plots in each forest type, and counted and identified all species of vascular epiphytes occurring on trees with a diameter at breast height (DBH) ≥10 cm. We observed a clear distinction in epiphytic species composition (r2=0.83, p=0.001) and diversity (t=3.24, P=0.003) between the two...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon; Biodiversity; Floodplains; Igapó forests; Várzea forests.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000400686

Structural indexes and sexual maturity of tambaqui Colossoma macropomum (cuvier, 1818) (Characiformes: Characidae) in Central Amazon, Brazil
Provedor de dados: 57
Autores: VILLACORTA-CORREA,M. A.; SAINT-PAUL,U.
Length, weight, structural index and sexual maturity in tambaqui Colossoma macropomum were analysed. 449 specimens were obtained from the commercial fishing fleet arriving at Manaus Harbour from the floodplain areas from May 1992 to July 1993. The objective of this study is to describe changes in structural index during one hidrological cycle and to interpret them according to the water level fluctuations and to also determine the time, reproductive period and length in sexual maturity. Sex ratio in tambaqui was 1:1 however, the length of females was significantly longer than males'. Length/weight relationship was described by the expression: Pt = 0.00058*Cp2.9039. b value was significantly different from 3 which meant an alometric growth. Lower condition...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Colossoma macropomum; Floodplains; Structural index; Reproduction; Sexual maturity.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71081999000400013