SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Romagnolo,Mariza Barion; Souza,Maria Conceição de.

Utilizando-se de método fitossociológico, foi realizado estudo comparativo entre três remanescentes de floresta riparia da margem direita do alto rio Paraná (22º43'-45'S; 53º15'-18'W). Em cada um deles foi demarcada uma área de 3.150m\ subdividida em 21 parcelas contínuas de 150m², tendo como critério mínimo de amostragem o perímetro à altura do peito igual ou superior a 15cm. Foram levantados, na amostragem total, 58 espécies, 46 gêneros e 30 famílias, sendo duas indeterminadas. As famílias de maior riqueza específica foram Myrtaceae e Lauraceae com cinco espécies cada, Mimosaceae com quatro, Annonaceae e Rubiaceae com três cada uma, enquanto que os gêneros foram, Nectandra com quatro, Eugenia, Inga, Pouteria, Psidium e Sloanea com dois cada um. Os...

Aquatic macrophytes of Itaipu Reservoir, Brazil: survey of species and ecological considerations

Palavras-chave: Florística; Fitossociologia; Mata ciliar; Floresta aluvial; Rio Paraná; Planície de inundação.

Ano: 2000

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062000000200004

Thomaz,Sidinei Magela; Bini,Luis Maurício; Souza,Maria Conceição de; Kita,Kazue Kawakita; Camargo,Antonio Fernando Monteiro.

In a survey of the aquatic macrophytes of the Itaipu Reservoir, we identified 62 taxa in 25 families and 42 genera. The highest number taxa was observed for the emergent macrophytes (40 taxa). Reduced fluctuation in water level, increased light penetration, and sediment enrichment by nutrients and organic matter following the formation of the reservoir favored the appearance of a species-rich community of submerged macrophytes (23% of the taxa identified). The aquatic macrophytes were found mainly near the mouths of the main tributaries of the reservoir, in shallow area of depth less than 2 meters. In addition to the shallow depth, the greater nutrient input from the tributaries and relative protection from wind explained this distribution. Among the...

Arboreous vegetation of an alluvial riparian forest and their soil relations: Porto Rico island, Paraná river, Brazil

Palavras-chave: Nuisance species; Aquatic macrophytes; Itaipu reservoir; Egeria najas; Egeria densa.

Ano: 1999

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000100003

Campos,João Batista; Souza,Maria Conceição de.

The dynamics of alluvial deposits in floodplains forms islands and sandbanks. Deposits frequently accumulate at the river margins and on islands with consequent side growths. One of these sandbanks which started to form in 1952 annexed an area of 12.4ha to the Porto Rico island (53º15W and 22º45S). At present a forest fragment of approximately 2.0 ha exists in this place. The structural analysis of arboreous vegetation of this fragment showed a floristic gradient related to the physical and chemical variations of the substratum. High density of pioneer species associated to the absence of recruitment of new individuals of these and other successional categories indicated that the forest was impaired in its succession process. This fact could be...

Fruit ontogeny of Garcinia gardneriana (Planch. & Triana) Zappi (Clusiaceae)

Palavras-chave: Alluvial forest; Floodplain; Forest structure; Phytosociology; Riparian vegetation; Succession.

Ano: 2002

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000200004

Asinelli,Marta Eglaé Camargo; Souza,Maria Conceição de; Mourão,Káthia Socorro Mathias.

Garcinia gardneriana (Clusiaceae) is a small to medium-sized tree that usually occurs on the floodplains of the Paraná River and it is an important food source for the local inhabitants. The fruit itself is consumed in natura, and juices and sweets are made from it. The purpose of this study was to describe morphological and structural aspects of fruits and seeds of this species in order to classify the fruit type and the pulpy layer which involves the seeds. The material analyzed consisted of ovary and fruits in different stages of development, collected from five plants from Aurélio Island, Baía River (MS, BR) and the description was done according to standard procedures in anatomy. The fruit is a yellowish-orange spherical berry ("bacóide" type). The...

O gênero Eugenia L. (Myrtaceae) na planície de alagável do Alto Rio Paraná, Estados de Mato Grosso do Sul e Paraná, Brasil

Palavras-chave: Anatomy; Guttiferae; Morphology; Pericarp; Seed.

Ano: 2011

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062011000100007

Romagnolo,Mariza Barion; Souza,Maria Conceição de.

Foi realizado o levantamento das espécies de Eugenia L. da planície alagável do Alto Rio Paraná, Estados de Mato Grosso do Sul e Paraná (22º40' a 22º55'S e 53º10' a 53º40'W). Esta área localiza-se no domínio da Floresta Estacional Semidecidual e apresenta formações ripárias ao longo do rio Paraná, de suas ilhas e de seus tributários. As espécies registradas foram: Eugenia egensis DC., E. florida DC., E. hyemalis Cambess., E. klappenbachiana Mattos & D. Legrand, E. moraviana O. Berg, E. pyriformis Cambess., E. ramboi D. Legrand, E. repanda O. Berg., E. sulcata Spring. ex Mart. e E. uniflora L. Os meses que apresentaram o maior número de espécies em floração e frutificação foram respectivamente, setembro e novembro. Eugenia florida, E. hyemalis e E....

Os gêneros Calycorectes O. Berg, Hexachlamys O. Berg, Myrcianthes O. Berg, Myrciaria O. Berg e Plinia L. (Myrtaceae) na planície alagável do alto rio Paraná, Brasil

Palavras-chave: Myrtaceae; Eugenia; Florística; Vegetação ripária; Rio Paraná.

Ano: 2006

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062006000300004

Romagnolo,Mariza Barion; Souza,Maria Conceição de.

O presente estudo teve por objetivo o levantamento das espécies de Calycorectes O. Berg, Hexachlamys O. Berg, Myrcianthes O. Berg, Myrciaria O. Berg e Plinia L. para a planície alagável do alto rio Paraná, localizada nos Estados do Mato Grosso do Sul e Paraná (22 º40' a 22 º55'S e 53 º10' a 53 º40'W), Brasil. A área de estudo, sob domínio da Floresta Estacional Semidecidual Submontana, compreende formações ripárias do rio Paraná, de suas ilhas e tributários. As espécies registradas foram Calycorectes psidiiflorus (O. Berg) Sobral, Hexachlamys edulis (O. Berg) Kausel & D. Legrand, Myrcianthes pungens (O. Berg) D. Legrand, Myrciaria delicatula (DC.) O. Berg, M. cuspidata O. Berg, Plinia rivularis (Cambess.) Rotman e P. trunciflora (O. Berg) Kausel....

Potencial for natural forest regeneration from seed bank in an upper Paraná river floodplain, Brazil

Palavras-chave: Myrtaceae; Eugeniinae; Florística; Vegetação ripária; Rio Paraná.

Ano: 2004

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062004000300019

Campos,João Batista; Souza,Maria Conceição de.

The historical process of deforestation was analyzed to evaluate the regeneration potential of forests from soil seed bank of Porto Rico island (53° 15'W and 22° 45'S) in the upper Paraná river floodplain. Remnant forest fragments were identified and measured and the structure of arboreous vegetation and the composition of the seed bank of the forests and grassland of the island were evaluated. Results showed a fast process of deforestation with critical levels of forest: the remaining twice fragments represented only 5.98% of the total surface of the island. Disturbance by cattle raised on the island continuously degraded the fragments (backward succession), while expansion of areas with pasture favored severe impoverishment of the seed banks flora. The...

Structure, composition and spatial distribution of tree species in a remnant of the semideciduous seasonal Alluvial Forest of the upper Paraná River Floodplain

Palavras-chave: Deforestation; Alluvial forest; Floodplain; Paraná river; Brazil.

Ano: 2003

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000400018

Campos,João Batista; Romagnolo,Mariza Barion; Souza,Maria Conceição de.

The aim of this investigation was to study the structure, distribution patterns, and dynamics of tree species in a remnant of the Semideciduous Seasonal Alluvial Forest in the Upper Paraná River Floodplain, Brazil. Spatial variation of the vegetation was considered mainly in relation to soil and topographic characteristics. The 5,946 m² study area extended along a transect from the bank of the Paraná River across the floodplain, passing through a lake. Phytosociological analysis were performed for 36 plots, each 150 m². Subanalysis were performed for 300 m² zones. Soil characteristics and topographic profile and their relationship to the vegetation were analyzed. Hydrodynamic and sediment processes were the most important factors in vegetation...