Results 11 to 20 of about 731 (170)

Topsoil depth influences the recovery of rupestrian grasslands degraded by mining [PDF]

open access: yesRevista Brasileira de Ciência do Solo, 2021
Close association of iron mining and ferruginous rupestrian grassland places this ecosystem in a special condition of vulnerability, with a large number of degraded areas requiring restoration.
Lina Andrade Lobo Rezende   +4 more
doaj   +4 more sources

Hemiparasitism effect on Baccharis dracunculifolia DC. and consequences to its major galling herbivore [PDF]

open access: yesActa Botânica Brasílica, 2015
Mistletoes obtain nutrients and water from their hosts, with varying effects among those hosts. We assessed the factors that influence the colonization of the mistletoe Struthanthus flexicaulis on Baccharis dracunculifolia and the subsequent effects on ...
Thaise de Oliveira Bahia   +5 more
doaj   +2 more sources

Nectar robbing in Collaea cipoensis (Fabaceae), an endemic shrub of the Brazilian rupestrian grasslands

open access: yesRevista Mexicana de Biodiversidad, 2016
Nectar robbery is common in flowering plants with tubular corollas and can affect plant reproductive success. Our study characterized the interaction between potential pollinators and nectar robbers, and assessed the effects on flower abortion in a ...
Irene Gelvez-Zúñiga   +7 more
doaj   +4 more sources

Influence of vegetation physiognomy, elevation and fire frequency on medium and large mammals in two protected areas of the Espinhaço Range [PDF]

open access: yesZoologia (Curitiba), 2017
The objectives of this study were to determine the richness of medium and large mammal species in two protected areas of the Espinhaço Mountain Range, state of Minas Gerais, Brazil; and to investigate the factors affecting the occurrence of those species.
Fernando Ferreira de Pinho   +2 more
doaj   +4 more sources

Ecophysiological performance of a threatened shrub under restored and natural conditions in a harsh tropical mountaintop environment [PDF]

open access: yesActa Botânica Brasílica, 2016
Ecophysiological responses of plants are useful for monitoring the success of ecological restoration projects that target species conservation. In this study we evaluated the ecophysiological traits of individuals of Chamaecrista semaphora from a natural
Silvana A. B. Castro   +5 more
doaj   +2 more sources

Checklist of butterflies from the rupestrian grasslands of Serra do Cipó, Minas Gerais, Brazil (Lepidoptera: Papilionoidea)

open access: yesSHILAP, 2018
The aim of this study is to provide a list of the butterflies (Lepidoptera: Papilionoidea) that occur in the rupestrian grasslands of Serra do Cipó, Minas Gerais, Brazil.
A. C. V. Pires   +7 more
doaj   +2 more sources

Crescimento e desempenho de espécies nativas de campo rupestre em áreas degradadas quartzíticas [PDF]

open access: yesNeotropical Biology and Conservation, 2015
The rupestrian grasslands stand out for their exceptional biodiversity and high proportion of endemic species. Ecological restoration studies on this ecosystem are urgently needed in view of its extremely low resilience and special vulnerability to soil ...
Carvalho, Vanessa   +3 more
core   +3 more sources

Soil factors effects on life history attributes of Leiothrix spiralis and Leiothrix vivipara (Eriocaulaceae) on rupestrian grasslands in Southeastern Brazil [PDF]

open access: yesBrazilian Journal of Biology, 2014
In this study, we hypothesized that the life history traits of Leiothrix spiralis and L. vivipara would be linked to soil factors of the rupestrian grasslands and that rosette size would be influenced by soil moisture.
FF Coelho   +3 more
doaj   +4 more sources

Pollination and plant reproduction in the Cerrado, the world's most biodiverse savanna. [PDF]

open access: yesBiol Rev Camb Philos Soc
ABSTRACT The Brazilian Cerrado is a continental‐wide biodiversity hotspot and the most species‐rich savanna ecosystem in the world. The main aspect characterising this biodiversity is that the landscape is arranged as an intricate mosaic of different plant formations, including grasslands, savannas, and forests, each harbouring distinct but ...
Cardoso JCF   +6 more
europepmc   +2 more sources

Reproductive and vegetative phenology of the micro endemic Stachytarpheta cassiae (Verbenaceae) [PDF]

open access: yesRodriguésia, 2023
The flora of the Brazilian rupestrian grasslands represents a hotspot of species richness and endemisms. Stachytarpheta cassiae (Verbenaceae), is a micro endemic species, from which nothing is known.
Gesline Ferreira Guimarães   +7 more
doaj   +1 more source

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