Metabarcoding Reveals Fungal Diversity in the Root and Rhizosphere of <i>Isoëtes cangae</i>: An Endemic and Endangered Amazonian Species. [PDF]
Int J MicrobiolThe roots of most plants worldwide are associated with diverse fungal communities present in the soil. This study provides a descriptive assessment of the fungal diversity associated with the roots and rhizosphere of Isoëtes cangae, an endangered species endemic to the Amazon. Two sampling campaigns were conducted during the rainy and dry seasons, with
Araujo AK +6 more
europepmc +2 more sources
Ferns and lycophytes from Serra dos Carajás, an Eastern Amazonian mountain range
Rodriguésia, 2018 In the state of Pará (Brazil), until the beginning of last decade little was known about the composition of the fern and lycophyte flora. The ferruginous mountains of Carajás are located in Southeastern Pará, mostly inserted in the Floresta Nacional de ...
Alexandre Salino +2 more
doaj +2 more sources
Microclimate drives demographic compensation in a narrow endemic tropical species. [PDF]
New PhytolSummary 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.
Zupo T +10 more
europepmc +2 more sources
Flora das cangas da Serra dos Carajás, Pará, Brasil: Poaceae
RodriguésiaResumo Este trabalho apresenta um tratamento taxonômico para a família Poaceae nas cangas das Serra dos Carajás, Pará, Brasil. O artigo foi preparado de acordo com o escopo do projeto Flora das Cangas da Serra dos Carajás, com base no estudo de espécimes
Pedro Lage Viana +5 more
doaj +2 more sources
Cave-dwelling bats of Carajás National Forest: New cytogenetic data of threatened species. [PDF]
Ecol EvolThe Carajás National Forest, a Conservation Unit protected by law, is one of the few forest remnants in the southeastern region of Pará, Eastern Amazonia, Brazil, reconciling biodiversity protection with economic activities (i.e. mining). The present study aims to describe the chromosomal diversity of bats in natural caves of the Carajás National ...
da Silva JB +6 more
europepmc +2 more sources
Assessing Connectivity Thresholds Under Habitat Loss Scenarios for Threatened Amphibians and Squamate Reptiles in the Eastern Brazilian Amazon. [PDF]
Ecol EvolWe assessed which habitat extinction threshold in a landscape is a good predictor of functional connectivity for 14 species of terrestrial herpetofauna in the eastern Brazilian Amazon. We concluded that forest species should maintain a threshold of approximately 30% of habitat to avoid a significant abrupt decline in overall connectivity.
Teixeira C +4 more
europepmc +2 more sources
Geophysical Monograph Series, Page 1-26., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst +8 more
wiley +1 more source
Microbial Chemical Diversity and Cytotoxic Potential From Brazilian Ferruginous Caves: A Pioneering Metabolomic Survey. [PDF]
Chem BiodiversABSTRACT Cave microbiomes represent a rich yet understudied source of chemical diversity with biotechnological properties. Microorganisms in these environments thrive under extreme conditions such as darkness, oligotrophy, and high concentrations of inorganic matter like iron ore.
Kato NN +5 more
europepmc +2 more sources
Floral Integration and Phenotypic Selection on Floral Traits of <i>Ipomoea cavalcantei</i> (Convolvulaceae), a Rare, Endemic, and Endangered Species to the Amazon Ironstone Outcrops. [PDF]
Ecol EvolThis paper analyzed the evolutionary potential of Ipomoea cavalcantei (an endemic species from the Amazon) by using floral integration and phenotypic selection analysis. The analyzed population presented floral integration in style length, probably due to selective pressures from pollinators on floral traits related to pollen deposition.
Valentin-Silva A +6 more
europepmc +2 more sources
Atividade inferencial na compreensão leitora de gêneros textuais da matemática escolar
, 2023 This article aims to analyze the production of inferences by students in the final years of Elementary School in reading different textual genres in school mathematics.
Barbosa, Rosane Mendes +3 more
core +1 more source