A Palynological Atlas of the Amazon canga Vegetation

Plants, Год журнала: 2025, Номер 14(9), С. 1319 - 1319

Опубликована: Апрель 27, 2025

cangas are iron-rich outcrops where rupestrian fields develop in the Carajás Mountain Range (CMR). canga formations ancient ecosystems characterized by high levels of endemic and threatened plant species that thrive on substrates southeastern Amazon uplands. The recent taxonomic validation these enables more accurate distribution modeling across past, present, future time scales. This work presents a comprehensive palynological database for vegetation, resulting from extensive field herbarium surveys, as well compilation atlas includes 204 species: 10 ferns lycophytes, 62 monocots, 132 eudicots magnoliids (mainly herbs, lianas, trees). Most flowering plants pollinated bees, with secondary pollination other insects wind. taxa co-occur two geoenvironments: (1) forested slopes caves over plinthosols ferralsols (2) vegetation plinthosols. Seventeen potential domesticates used Indigenous peoples. highlights unique diverse ecosystem various survival strategies, emphasizing need precise habitat definitions paleoenvironmental paleoclimate reconstructions. provides valuable reference studies, enhancing reconstruction, climate history analysis, pre-Columbian influences patterns, ecological monitoring.

Язык: Английский

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Evolutionary history of campo rupestre: an approach for conservation of woody plant communities

Biodiversity and Conservation, Год журнала: 2018, Номер 27(11), С. 2877 - 2896

Опубликована: Июнь 15, 2018

Язык: Английский

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Plant phylogenetic diversity of tropical mountaintop rocky grasslands: local and regional constraints

Plant Ecology, Год журнала: 2019, Номер 220(12), С. 1119 - 1129

Опубликована: Ноя. 6, 2019

Язык: Английский

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Vellozioid roots allow for habitat specialization among rock‐ and soil‐dwelling Velloziaceae in campos rupestres

Functional Ecology, Год журнала: 2019, Номер 34(2), С. 442 - 457

Опубликована: Ноя. 6, 2019

Abstract Plant growth on harsh substrates (habitat specialization) requires specific traits to cope with stressful conditions. We tested whether related nutrient acquisition (root colonization by fungal symbionts, and plant morphological physiological specializations), use (leaf nitrogen (N) phosphorus (P) concentrations N‐ P‐remobilization efficiency), were habitat specialization for 27 species of Velloziaceae growing either in soil or rocks extremely P‐impoverished campos rupestres habitats. If drive trait sorting, then we expect differ between those substrates. Both rock‐dwelling presented a very low proportion root length colonized arbuscular mycorrhizal dark‐septate fungi. However, rhizosheaths only observed soil‐dwelling species, vellozioid roots, that allows mining P dissolving quartzite rock, mostly found species. did not observe differences nutrient‐use rock‐ Root specializations are strongly correlated microhabitats, the presence roots seems mediate bare rock specialization. There is an overall limitation productivity both , which does sorting above‐ground symbiotic acquisition. Therefore, impoverishment indeed strong environmental filter as whole, but plays important role spatial distribution contrasting

Язык: Английский

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Landscape heterogeneity and habitat amount drive plant diversity in Amazonian canga ecosystems

Landscape Ecology, Год журнала: 2020, Номер 36(2), С. 393 - 406

Опубликована: Ноя. 28, 2020

Язык: Английский

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