Results 11 to 20 of about 8,476 (165)

A Palynological Atlas of the Amazon canga Vegetation [PDF]

open access: yesPlants
cangas are iron-rich outcrops where rupestrian fields develop in the Carajás Mountain Range (CMR). canga formations are ancient ecosystems characterized by high levels of endemic and threatened plant species that thrive on iron-rich substrates in the ...
Luiza de Araújo Romeiro   +10 more
doaj   +3 more sources

Microclimate drives demographic compensation in a narrow endemic tropical species [PDF]

open access: yesNew Phytologist, Volume 250, Issue 1, Page 166-180, April 2026.
Summary Demographic compensation occurs when reductions in some vital rates are offset by increases in others, allowing populations to maintain similar performance across varying environments. This mechanism may help explain species' ecological distributions and range limits, yet its role at microenvironmental scales remains poorly understood.
Talita Zupo   +10 more
wiley   +2 more sources

Long‐term effects of a peer‐led Brief Alcohol Screening and Intervention for College Students (BASICS) intervention to reduce alcohol consumption among Spanish university students: A 12‐month randomised controlled trial [PDF]

open access: yesAddiction, Volume 121, Issue 7, Page 1850-1862, July 2026.
Abstract Background and aims Harmful alcohol consumption remains widespread among university students and is associated with numerous academic, social and health‐related consequences. Peer‐led approaches offer a promising strategy to reduce risky drinking in this population.
María Lavilla‐Gracia   +3 more
wiley   +2 more sources

Florística e caracterização dos campos rupestres sobre canga na Serra da Calçada, Minas Gerais, Brasil

open access: yesRodriguésia, 2007
RESUMO Os campos rupestres sobre canga são um ambiente peculiar e freqüente na região do Quadrilátrero Ferrífero, Minas Gerais. Sua vegetação, associada a afloramentos hematíticos, apresenta uma série de adaptações morfológicas e fiosiológicas, assim ...
Pedro Lage Viana, Julio Antonio Lombardi
doaj   +3 more sources

Floristic-structural relationships between Canga ferruginous tree communities and adjacent vegetation types

open access: yesActa Scientiarum: Biological Sciences, 2018
Our objective was to evaluate the floristic and structural relationships between Canga tree communities and other vegetation types inserted in the physiognomic units set, in order to test the hypothesis that these communities have unique characteristics ...
Cléber Rodrigo de Souza   +8 more
doaj   +2 more sources

ASPECTOS GENÉTICOS E MORFOLÓGICOS DAS CAVIDADES NATURAIS DA SERRA DA PIEDADE, QUADRILÁTERO FERRÍFERO/MG

open access: yesRevista Brasileira de Geomorfologia, 2013
Os estudos acadêmicos sobre cavidades naturais em formações ferríferas bandadas e canga, no Quadrilátero Ferrífero - Minas Gerais, são escassos diante do potencial espeleológico desta província mineral.
Manuela Corrêa Pereira   +2 more
doaj   +1 more source

Sympatric occurrence of two species of Pseudopaludicola (Anura: Leptodactylidae) and first record of Pseudopaludicola jaredi Andrade, Magalhães, Nunes-de-Almeida, Veiga-Menoncello, Santana, Garda, Loebmann, Recco-Pimentel, Giaretta & Toledo, 2016 in the state of Maranhão, northeastern Brazil [PDF]

open access: yesCheck List, 2016
Here, we document the sympatric occurrence of Pseudopaludicola canga and P. jaredi. We also provide the first record of P. jaredi in the state of Maranhão, northeastern Brazil, expanding this species’ distribution by about 610 km southwestward from Serra
Etielle Andrade   +4 more
doaj   +3 more sources

Soil-vegetation relationships on a banded ironstone 'island', Carajás Plateau, Brazilian Eastern Amazonia

open access: yesAnais da Academia Brasileira de Ciências, 2015
Vegetation and soil properties of an iron-rich canga (laterite) island on the largest outcrop of banded-iron formation in Serra de Carajás (eastern Amazonia, Brazil) were studied along a topographic gradient (738-762 m asl), and analyzed to test the ...
Jaquelina A. Nunes   +5 more
doaj   +1 more source

16S rRNA Gene Amplicon Sequencing Data of the Iron Quadrangle Ferruginous Caves (Brazil) Shows the Importance of Conserving This Singular and Threatened Geosystem

open access: yesDiversity, 2021
The Iron Quadrangle (IQ) is one of the main iron ore producing regions of the world. The exploitation of its reserves jeopardizes the high biological endemism associated with this region.
Camila G. C. Lemes   +16 more
doaj   +1 more source

Ecologia de Sinningia rupicola (Mart.) Wiehler (Gesneriaceae) em duas Reservas Particulares do Patrimônio Natural situadas no Quadrilátero Ferrífero, Estado de Minas Gerais, Brasil

open access: yesHoehnea, 2021
Sinningia rupicola (Gesneriaceae), espécie ameaçada de extinção e classificada como endêmica de canga do Quadrilátero Ferrífero é aqui apresentada sob uma abordagem ecológica, baseada na análise de dados referentes a registros realizados em duas Reservas
Lídia Maria dos Santos   +7 more
doaj   +1 more source

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