Results 121 to 130 of about 179 (142)
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Phenology Patterns Across a Rupestrian Grassland Altitudinal Gradient
2016Phenology is the study of recurrent biological events in the life cycle of organisms. For plants, reproductive events such as flowering and fruiting are critical stages in their life cycles, which also greatly affect other organisms depending on these resources.
Rocha, Nathália Miranda Walter Bretas +5 more
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Succession on the Rocky Outcrop Vegetation: A Rupestrian Grassland Scheme
2016We investigated the nature of the temporal processes involved in the formation of vegetation on the heterogeneous landscape of rocky outcrops on ridge tops in rupestrian grasslands (campos rupestres) , Northeastern Brazil. Relationships were established between spatial patterns and gradual processes of succession and their respective species life-forms.
Abel A. Conceição, José R. Pirani
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Neotropical Entomology, 2023
Mountain ecosystems experience abrupt abiotic changes that represent environmental filters for many organisms, shaping their phenotypic expressions. However, little is known about the morphological and symmetric adjustments of native bees along altitudinal gradients. We evaluated the changes on wing morphology, wing size, and vein fluctuating asymmetry
Marcela Sofía Vaca-Sánchez +8 more
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Mountain ecosystems experience abrupt abiotic changes that represent environmental filters for many organisms, shaping their phenotypic expressions. However, little is known about the morphological and symmetric adjustments of native bees along altitudinal gradients. We evaluated the changes on wing morphology, wing size, and vein fluctuating asymmetry
Marcela Sofía Vaca-Sánchez +8 more
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The Megadiverse Rupestrian Grassland
2016The Rupestrian Grassland is an ancient ecosystem characterized by high herbaceous species richness, high endemism, and unique species compositions. The vegetation and habitats in the Rupestrian Grassland are maintained by edapho-climatic factors that limit tree growth and distribution, frequent fires, and, possibly, herbivory.
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Brazilian Journal of Botany, 2018
Investigations on the propagation and establishment of native grasses of rupestrian grassland on degraded substrates are essential to enable their use in the restoration of degraded areas, thus reducing the use of exotic species. This study aimed to evaluate the sexual and asexual propagation, establishment and growth of Axonopus laxiflorus (Trin ...
Maurilio Assis Figueiredo +3 more
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Investigations on the propagation and establishment of native grasses of rupestrian grassland on degraded substrates are essential to enable their use in the restoration of degraded areas, thus reducing the use of exotic species. This study aimed to evaluate the sexual and asexual propagation, establishment and growth of Axonopus laxiflorus (Trin ...
Maurilio Assis Figueiredo +3 more
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Mycorrhiza, 2015
Variation in arbuscular mycorrhizal fungi (AMF) communities is described for the first time in rupestrian grasslands in Brazil along an altitudinal gradient of 700 m (800 to 1400 m a.s.l.). Hypotheses tested were that soil properties influence the variation in AMF communities and that the frequency of the most common species of AMF is inversely ...
Etiene Silva, Coutinho +4 more
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Variation in arbuscular mycorrhizal fungi (AMF) communities is described for the first time in rupestrian grasslands in Brazil along an altitudinal gradient of 700 m (800 to 1400 m a.s.l.). Hypotheses tested were that soil properties influence the variation in AMF communities and that the frequency of the most common species of AMF is inversely ...
Etiene Silva, Coutinho +4 more
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Archipelago of Montane Forests Surrounded by Rupestrian Grasslands: New Insights and Perspectives
2016In this chapter, we describe, for the first time, the natural islands of Atlantic rainforests, regionally known as capoes (heretofore called Atlantic forest islands, or simply forest islands), associated to the Espinhaco Range under the perspective of the landscape context in which they are immersed.
Marcel S. Coelho +7 more
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Brazilian Journal of Botany, 2016
This study aimed to document variation in the composition and structure of regenerating woody vegetation along an altitudinal gradient of a rupestrian grassland and to describe the relationship between species and characteristics of the soil. All woody plants with a diameter at ground height of ≤1 cm were collected in seven sampling sites at altitudes ...
Nayara Mesquita Mota +4 more
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This study aimed to document variation in the composition and structure of regenerating woody vegetation along an altitudinal gradient of a rupestrian grassland and to describe the relationship between species and characteristics of the soil. All woody plants with a diameter at ground height of ≤1 cm were collected in seven sampling sites at altitudes ...
Nayara Mesquita Mota +4 more
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2021
Plants harbor diverse microorganisms, and among them, the endophytic fungi can thrive asymptomatically in different healthy tissues of living plants above and/or under the ground, including the leaves, stems, and roots. Brazil is a country with some of the greatest plant biodiversity in the world and shelters different biomes such as the Rupestrian ...
Camila Rodrigues de Carvalho +3 more
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Plants harbor diverse microorganisms, and among them, the endophytic fungi can thrive asymptomatically in different healthy tissues of living plants above and/or under the ground, including the leaves, stems, and roots. Brazil is a country with some of the greatest plant biodiversity in the world and shelters different biomes such as the Rupestrian ...
Camila Rodrigues de Carvalho +3 more
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2016
In spite of the increasing number of studies on the Rupestrian Grassland, the knowledge generated is insufficient to promote further conservation due to the rapid pace of impacts caused by human disturbances. These disturbances include biological invasions, afforestation, mining, road construction, tourism, fire, plant extraction, cattle ranching, and ...
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In spite of the increasing number of studies on the Rupestrian Grassland, the knowledge generated is insufficient to promote further conservation due to the rapid pace of impacts caused by human disturbances. These disturbances include biological invasions, afforestation, mining, road construction, tourism, fire, plant extraction, cattle ranching, and ...
openaire +1 more source