Buscar
Mostrando ítems 1-10 de 347
The diversity of post-fire regeneration strategies in the cerrado ground layer
(2020-01-01)
Disentangling species strategies that confer resilience to natural disturbances is key to conserving and restoring savanna ecosystems. Fire is a recurrent disturbance in savannas, and savanna vegetation is highly adapted ...
Fatigue behavior and surface characterization of a Y-TZP after laboratory grinding and regeneration firing
(2018-12-01)
This study evaluated the effect of grinding and regeneration firing on the flexural fatigue limit and surface characterization of Lava™ Y-TZP ceramic. Forty bar-shaped specimens with 20 × 4.0 × 1.2 mm constituted the ...
What matters for vegetation regeneration in Brazilian subtropical grasslands: seeders or resprouters?
(2021-06-01)
Fire is an important ecological and evolutionary factor affecting plant communities worldwide. After fire, plants can resprout or germinate and systems may differ according to their post-fire regeneration strategies. ...
Differences in floristic composition of Araucaria-Nothofagus forests affected by mixed levels of fire severity
(EDICIONES UNIV. CONCEPCION, 2018)
Increased canopy seed-storage in post-fire pine invaders suggests rapid selection mediated by fire
(Elsevier Gmbh, Urban & Fischer Verlag, 2020-04)
Exotic species storing seeds in the canopy (serotinous species) can experience a clear advantage in fire-prone communities that lack native taxa with such fire-resistant traits. In addition, selection in the new environment ...
Fire and vegetation: Introduction to the special issue
(2022-01-01)
Fires are widespread disturbance events with many implications for different aspects of plant persistence and vegetation properties. Changing fire regimes can profoundly affect vegetation dynamics and ecosystem properties. ...
Gaps critical for the survival of exposed seeds during Cerrado fires
(2018-01-01)
The fine-scale effects of fire and the consequences for seed survival are poorly understood, especially in the Cerrado (Brazilian savannas). Thus, we investigated whether vegetation gaps (bare soil patches) influence the ...
Zirconia changes after grinding and regeneration firing
(Elsevier B.V., 2017-07-01)
Statement of problem. Despite improvements in computer-aided design and computer-aided manufacturing (CAD-CAM) systems, grinding during either laboratory procedures or clinical adjustments is often needed to modify the ...
Do we need intervention after pine tree removal? The use of different management techniques to enhance Cerrado natural regeneration
(2019-01-01)
Some Cerrado areas are suppressed by pine tree cultivation. These monoculture processes can exclude the fire presence and inhibit native species development. In Southeastern Brazil, thousands of hectares were planted with ...
Fire regimes and vegetation responses in two Mediterranean-climate regions
(Sociedad de Biología de Chile, 2004)