Results 101 to 110 of about 179 (142)
Advances in Legume Systematics 14. Classification of Caesalpinioideae. Part 2: Higher-level classification. [PDF]
PhytoKeysBruneau A +47 more
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Challenges for the conservation of vanishing megadiverse rupestrian grasslands
Natureza A Conservacao, 2014 The Espinhaco Mountains comprise a mountain range that stretches more than 1200 km in the east of South America. In these mountainous environments occur the rupestrian grasslands, a complex mosaic of vegetations influenced primarily by relief and ancient geological history.
Barbosa Npu +2 more
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South African Journal of Botany, 2021 Abstract The vegetation of ironstone rupestrian grasslands (canga) is of significant conservation concern due to the rapid encroachment of mining activity and urbanization on the remnants of this ecosystem. Ecological studies that address the phenological patterns of this vegetation are still scarce, although they are essential for its conservation ...
Daniel Negreiros
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The deadly route to collapse and the uncertain fate of Brazilian rupestrian grasslands [PDF]
Biodiversity and Conservation, 2018 Rupestrian grasslands are biodiverse, evolutionary old vegetation complexes that harbor more than 5000 species of vascular plants and one of the highest levels of plant endemism in the world. Growing on nutrient–impoverished soils and under harsh environmental conditions, these mountaintop ecosystems were once spared from major human interventions of ...
Barbosa Npu +2 more
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Ecological Complexity, 2020
Abstract The unique vegetation of rupestrian grassland (Campo Rupestre) is finely tuned to the strong environmental and edaphoclimatic filters that resulted in important adaptations and high levels of endemism. In this study, we intend to give another focus to the understanding of the identity of the rupestrian grasslands by observing their floristic
Pedro Viana +2 more
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Abstract The unique vegetation of rupestrian grassland (Campo Rupestre) is finely tuned to the strong environmental and edaphoclimatic filters that resulted in important adaptations and high levels of endemism. In this study, we intend to give another focus to the understanding of the identity of the rupestrian grasslands by observing their floristic
Pedro Viana +2 more
exaly +2 more sources
Oecologia, 2022
Floral traits mediate the roles of distinct animals as effective pollinators along a generalization/specialization continuum. Many plant species are visited by different pollinator functional groups and the specific contribution of each group is expected to reflect the set of floral characteristics defined by pollination syndromes.
Marsal D. Amorim +4 more
openaire +2 more sources
Floral traits mediate the roles of distinct animals as effective pollinators along a generalization/specialization continuum. Many plant species are visited by different pollinator functional groups and the specific contribution of each group is expected to reflect the set of floral characteristics defined by pollination syndromes.
Marsal D. Amorim +4 more
openaire +2 more sources
Challenges in the Restoration of Quartzitic and Ironstone Rupestrian Grasslands
2016Actively restoring ecosystems that have “been degraded, damaged or destroyed” became imperative in face of worldwide human impacts on nature. For rupestrian grasslands which are so peculiar and restricted in range, but also subjected to strong impact pressures, this seems to be even more important.
Tiago Toma +2 more
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PHENOLOGICAL STRATEGIES OF DIOECIOUS SPECIES IN RESPONSE TO THE ENVIRONMENTAL VARIATIONS OF RUPESTRIAN GRASSLANDS [PDF]
Cerne, 2017 ABSTRACT Rupestrian grasslands present great diversity of phenological patterns in response to the high biodiversity of this ecosystem and its environmental variation. Dioecious species show distinction between the genders in relation to the nutritional requirements for growth and reproduction, comprehending determining factors, especially in ...
Cassia Michelle Cabral +2 more
exaly +4 more sources
Seed Germination Ecology in Rupestrian Grasslands
2016Germination behavior is a phenotype that results from the interaction between seed properties (intrinsic factors) and environmental (extrinsic) factors. Since germination is an irreversible process and seedling stage is particularly susceptible to harsh conditions, selection should favor strategies that prevent seeds from germinating under unfavorable ...
Fernando Silveira +2 more
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Water Resources in the Rupestrian Grasslands of the Espinhaço Mountains
2016The rupestrian grasslands in Minas Gerais State comprise headwaters of important watersheds that drainages for millions citizens in over 400 cities in Sao Francisco and Doce river basins. The human activities in the rupestrian grasslands include domestic supply, agriculture, forestry, cattle raising, industry, and mineral extraction.
Raphaël Ligeiro +2 more
exaly +2 more sources