Results 81 to 90 of about 14,758 (206)
Este experimento foi delineado para investigar os seguintes pontos em relação à intoxicação aguda por samambaia (Pteridium aquilinum) em bovinos: 1) a intensidade da trombocitopenia em diferentes momentos da intoxicação e sua relação com possíveis ...
Bruno L. Anjos +5 more
doaj +1 more source
Impacts of deforestation and burning, and the role of bracken fern, on the properties of surficial or buried soil A-horizons [PDF]
Bracken fern (Pteridium spp.) is an aggressive plant that commonly invades disturbed sites. Its success as an invader is attributable, in part, to its ability to produce abundant growth, both below ground in the form of rhizomes and fine roots and above ...
Lowe, David J., McDaniel, Paul
core +1 more source
Study results show that over 70% of the permanent grasslands are affected by soil acidity and moisture excess. In addition, 54% of the floristic structure of these grasslands is made up of invasive species of no value as fodder plants.
Maria Sauer +7 more
doaj
The authors describe a case of acute intoxication by bracken fern ( Pteridium aquilinum) in a cattle herd raised in the city of Reserva, Parana State. A total of 25 animals died due to intoxication caused by the ingestion of large amounts of the toxic ...
Alexandre Amorim Monteiro +5 more
doaj +1 more source
Progress in South America Dendrochronology [PDF]
South America extends from 11°N to 62°S. Major boundaries such as the Andes on the western side of the continent and the land mass in the tropics create north-south and west-east variations in climate and ecosystems.
Boninsegna, Jose Armando
core +1 more source
Foram estudados os esporos de onze espécies de pteridófitas pertencentes à família Dennstaedtiaceae do Parque Estadual das Fontes do Ipiranga. A família está representada na área por cinco gêneros: Histiopteris, Hypolepis, Lindsaea, Pteridium e Saccoloma.
Luciano Mauricio Esteves +1 more
doaj +1 more source
Vegetation and floristics of Warra National Park and Wattleridge, Northern Tablelands, NSW [PDF]
The vegetation of Warra National Park (29° 29’S, 151° 56’E; 2041 ha in area) and Wattleridge (29°31’S, 151°54’E; 648 ha in area), located approximately 35 km southeast of Glen Innes and 5 km west of Mount Mitchell, within the Guyra and Severn Shires in ...
Hunter, John T.
core
Pteridium aquilinum: o que sabemos e o que ainda falta saber
A samambaia Pteridium aquilinum encontra-se amplamente distribuída no planeta, sendo considerada um problema ambiental, além de representar perigo para a saúde tanto de animais quanto da espécie humana.
Natália Satchiko Hojo-Souza +2 more
doaj
Com o objetivo de esclarecer a questão da sobrevida de bovinos afetados por Hematúria Enzoótica, quando transferidos para áreas livres de Pteridium arachnoideum, o estudo foi realizado em duas partes: a) aplicação de questionário versando sobre os ...
Alexandre Galvão +5 more
doaj +1 more source
Enzootic hematuria is a cronic disease of cows clinically characterized by intermittent hematuria that can be caused by bracken fern (Pteridium aquilinum) and the papilomatosis virus.
Itacir Eloi Sandini +6 more
doaj +1 more source

