Results: 15

Intoxicação crônica por Pteridium arachnoideum em bovinos no nordeste do estado do Rio Grande do Sul, Brasil

Rev. bras. ciênc. vet; 26 (1), 2019
Pteridium spp., popularmente conhecida como samambaia, comumente encontrada em solos ácidos, arenosos e de baixa fertilidade. A intoxicação ocorre quando os animais passam por privação alimentar ou ingestão acidental. O objetivo deste estudo é relatar a ocorrência de dois casos de intoxicação c...

Abiotic factors drives floristic variations of fern's metacommunity in an Atlantic Forest remnant

Braz. j. biol; 78 (4), 2018
Abstract We analyzed floristic variations in fern's metacommunity at the local scale and their relationship with abiotic factors in an Atlantic Forest remnant of northeastern Brazil. Floristic and environmental variations were accessed on ten plots of 10 × 20 m. We performed cluster analyses, based on B...

Morfogénesis de la fase sexual de los helechos epífitos Microgramma mortoniana y Pleopeltis macrocarpa (Polypodiaceae) de la Reserva Natural Punta Lara, Buenos Aires, Argentina

Rev. biol. trop; 66 (3), 2018
Resumen Pleopeltis macrocarpa y Microgramma mortoniana son dos helechos epífitos de la familia Polypodiaceae hallados con baja frecuencia en la Reserva Natural Punta Lara (Buenos Aires, Argentina). El objetivo de este trabajo fue estudiar la morfogénesis de gametófitos epífitos para fortalecer poblac...

Lianas, tree ferns and understory species: indicators of conservation status in the Brazilian Atlantic Rainforest remnants, southeastern Brazil

Braz. j. biol; 77 (2), 2017
Abstract Indicators are applied faster and at lower costs than conventional surveys, providing quick and efficient responses that can facilitate protected areas management. Our aim was to select indicators from vegetation to monitor protected areas. For this purpose, we analyzed understory and quantified...

Sugars in ferns and lycophytes growing on rocky outcrops from southeastern brazilian coast

Biosci. j. (Online); 30 (6), 2014
The extreme conditions in rocky outcrops allow the occurrence of desiccation tolerant species. One strategy of these plants to withstand water shortage is the accumulation of sugars. In this paper, we report sugar levels and profile of three ferns and one lycophyte naturally hydrated growing on rocky out...