Plotting a future for Amazonian canga vegetation in a campo rupestre context DOI Creative Commons
Daniela C. Zappi, Marcelo Freire Moro, Barnaby E. Walker

et al.

PLoS ONE, Journal Year: 2019, Volume and Issue: 14(8), P. e0219753 - e0219753

Published: Aug. 5, 2019

In order to establish effective conservation strategy, drivers of local and regional patterns biodiversity need be understood. The composition is dependent on a number factors including evolution redistribution lineages through dispersal environmental heterogeneity. Brazilian canga characterised by ferrugineous substrate, found both in the Iron Quadrangle Minas Gerais Carajás mountains Amazonia. Canga one several specialised habitat types comprising campo rupestre, montane vegetation within or adjacent major bioregions, Atlantic Forest Amazonia, with exceptionally high levels diversity endemism arising from history variation. inform for canga, more broadly we performed floristic phylogenetic analyses investigating affinities between 28 sites different substrates (canga quartzite) geographic locations (Carajás, Pará [Amazonia]; Cadeia do Espinhaço, Gerais; Chapada Diamantina, Bahia). Through analysis 11204 occurrences 4705 species angiosperms, that Amazonian plant communities formed cohesive group, distinct assemblages Eastern Brazil (Minas Gerais, Bahia), either quartzite. megatree across all investigated shows associations certain clades few shared sites, while comparison heterogeneity sites. reserves has been recognized addressed creation national park. However, current sampling does not provide sufficient reassurance areas now benefitting full legal protection adequately represent flora.

Language: Английский

Plant biogeography of rock outcrops in South American tropical lowlands DOI Creative Commons
Rosie Clegg, Luísa Azevedo, Maira T. Martinez-Ugarteche

et al.

Frontiers of Biogeography, Journal Year: 2025, Volume and Issue: 18

Published: March 10, 2025

Studies of rock outcrops in tropical South America have increased recent years, but they often been restricted to individual countries, single biomes or disciplines (e.g. through a floristic, functional genetic lens), limiting their generality. We review the current state knowledge on geological and floristic diversity identify gaps generate testable hypotheses for future research into biogeography evolution plant communities. find that lowland outcrop vegetation is disparately documented we know less about evolutionary biogeographic history these island-like systems. Based edaphic factors, classify American four main groups: granite/gneiss, quartzite/metamorphosed sandstone, limestone ironstone. hypothesise lithologies influence lineage composition floras. However, elevation also plays role creating microclimatic conditions by influencing degree insularity from surrounding vegetation. Our literature suggests support different floras, confirming this requires further surveys across full outcrops. suggest framework to: (i) improve floras how relate biomes; (ii) investigate relative roles niche conservatism using phylogenetic approaches; (iii) assess species cope with living naturally fragmented habitats analysis recruitment gene flow population genetics. Understanding can help provide information conservation planning decisions. Rock are urgent need study because possess distinctive highly specialised flora threatened climate land-use changes. There increase number studies some Latin countries Bolivia, Paraguay, Guyana, French Guiana Suriname) limestone). major determinant lithology outline be tested community-level data. Inferring relationships endemic establishing environments where closest relatives occur will powerful approach address questions historical assembly Population approaches focusing both elucidate connectivity and, therefore, insular vulnerable are.

Language: Английский

Citations

1
Biogeographic distributions of neotropical trees reflect their directly measured drought tolerances DOI Creative Commons
Adriane Esquivel‐Muelbert, David Galbraith, Kyle G. Dexter

et al.

Scientific Reports, Journal Year: 2017, Volume and Issue: 7(1)

Published: Aug. 10, 2017

High levels of species diversity hamper current understanding how tropical forests may respond to environmental change. In the tropics, water availability is a leading driver and distribution tree species, suggesting that many taxa be physiologically incapable tolerating dry conditions, their distributions along moisture gradients can used predict drought tolerance. While this hypothesis has been explored at local regional scales, large continental-scale tests are lacking. We investigate whether relationship between drought-induced mortality holds continentally by relating experimental observational data across Neotropics large-scale bioclimatic 115 genera. Across different experiments, genera affiliated wetter climatic regimes show higher than dry-affiliated ones, even after controlling for phylogenetic relationships. This pattern stronger adult trees saplings or seedlings, filters exerted impact survival most strongly. Overall, our analysis experimental, observational, neotropical suggests increasing moisture-stress indeed likely drive significant changes in floristic composition.

Language: Английский

Citations

79
Delimiting floristic biogeographic districts in the Cerrado and assessing their conservation status DOI
Renata Dias Françoso, Kyle G. Dexter, Ricardo B. Machado

et al.

Biodiversity and Conservation, Journal Year: 2019, Volume and Issue: 29(5), P. 1477 - 1500

Published: July 27, 2019

Language: Английский

Citations

76
Beyond Refugia: New Insights on Quaternary Climate Variation and the Evolution of Biotic Diversity in Tropical South America DOI
Paul A. Baker, Sherilyn C. Fritz, David S. Battisti

et al.

Fascinating life sciences, Journal Year: 2020, Volume and Issue: unknown, P. 51 - 70

Published: Jan. 1, 2020

Language: Английский

Citations

59
Hybridization: a ‘double-edged sword’ for Neotropical plant diversity DOI Creative Commons
Rowan Schley, Alex D. Twyford, R. Toby Pennington

et al.

Botanical Journal of the Linnean Society, Journal Year: 2021, Volume and Issue: 199(1), P. 331 - 356

Published: Sept. 30, 2021

Abstract Hybridization can facilitate both evolutionary diversification and extinction has had a critical role in plant evolution, with c. 25% of species known to hybridize some temperate floras. However, the species-rich Neotropical flora, hybridization evolution diversity remains unclear. Our review examines studies seed plants from across Neotropics explores its outcomes on evolution. We per-biome basis spectrum are evident biomes taxa. These range short-term impacts, such as broadening ecological amplitude hybrid progeny transgressive phenotypes genetic swamping, through long term generation new lineages. Among these certain themes emerge, pervasive among radiations Andean páramos, suggesting for rapid events. Finally, we highlight that is relatively understudied despite remarkable richness. The advent genomic techniques study effects groups. increasing availability resources will eventually allow comparisons between tropical floras therefore shed light impacts latitudinal biodiversity gradient.

Language: Английский

Citations

44
Amazon tree dominance across forest strata DOI
Freddie C. Draper, Flávia R. C. Costa, Gabriel Arellano

et al.

Nature Ecology & Evolution, Journal Year: 2021, Volume and Issue: 5(6), P. 757 - 767

Published: April 1, 2021

Language: Английский

Citations

43
Diversity and divergence: evolution of secondary metabolism in the tropical tree genus Inga DOI
Dale L. Forrister, María‐José Endara, Abrianna J. Soule

et al.

New Phytologist, Journal Year: 2022, Volume and Issue: 237(2), P. 631 - 642

Published: Oct. 20, 2022

Summary Plants are widely recognized as chemical factories, with each species producing dozens to hundreds of unique secondary metabolites. These compounds shape the interactions between plants and their natural enemies. We explore evolutionary patterns processes by which generate diversity, from evolving novel profiles. characterized profile one‐third tropical rainforest trees in genus Inga ( c. 100, Fabaceae) using ultraperformance liquid chromatography‐mass spectrometry‐based metabolomics applied phylogenetic comparative methods understand mode evolution. show: contain structurally unrelated high levels phytochemical diversity; closely related have divergent profiles, individual compounds, compound classes, profiles showing little‐to‐no signal; at time scale, a species' shows signature adaptation. At ecological sympatric were most divergent, implying it is also advantageous maintain community members; finally, we integrate these model for how diversity evolves. Taken together, results show that divergence fundamental ecology evolution plants.

Language: Английский

Citations

32
Geography and ecology shape the phylogenetic composition of Amazonian tree communities DOI Creative Commons
Bruno Garcia Luize, D.E. Bauman, Hans ter Steege

et al.

Journal of Biogeography, Journal Year: 2024, Volume and Issue: 51(7), P. 1163 - 1184

Published: Feb. 17, 2024

Abstract Aim Amazonia hosts more tree species from numerous evolutionary lineages, both young and ancient, than any other biogeographic region. Previous studies have shown that lineages colonized multiple edaphic environments dispersed widely across Amazonia, leading to a hypothesis, which we test, should not be strongly associated with either geographic regions or forest types. Location Amazonia. Taxon Angiosperms (Magnoliids; Monocots; Eudicots). Methods Data for the abundance of 5082 in 1989 plots were combined mega‐phylogeny. We applied ordination assess how phylogenetic composition varies used variation partitioning Moran's eigenvector maps (MEM) test quantify separate joint contributions spatial environmental variables explain plots. tested indicator value types mapped associations onto phylogeny. Results In terra firme várzea types, by region, but igapó white‐sand retain unique signature regardless Overall, find soil chemistry, climate topography 24% composition, 79% being spatially structured ( R 2 = 19% overall spatial/environmental effects). The also shows substantial patterns related quantified 28%). A greater number significant indicators Main Conclusion Numerous including some ancient ones (>66 Ma), show strong This specialization specific has played long‐standing role assembly Amazonian forests. Furthermore, many even those dominate within likely because phylogenetically conserved niches conditions are prevalent regions.

Language: Английский

Citations

8
Consequences of interspecific variation in defenses and herbivore host choice for the ecology and evolution of Inga, a speciose rainforest tree DOI
Phyllis D. Coley, María‐José Endara,

Thomas A. Kursar

et al.

Oecologia, Journal Year: 2018, Volume and Issue: 187(2), P. 361 - 376

Published: Feb. 10, 2018

Language: Английский

Citations

59
Evolutionary diversity is associated with wood productivity in Amazonian forests DOI
Fernanda Coelho de Souza, Kyle G. Dexter, Oliver L. Phillips

et al.

Nature Ecology & Evolution, Journal Year: 2019, Volume and Issue: 3(12), P. 1754 - 1761

Published: Nov. 11, 2019

Language: Английский

Citations

55