Articles with "south america" as a keyword



The nature of subslab slow velocity anomalies beneath South America

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Published in 2017 at "Geophysical Research Letters"

DOI: 10.1002/2017gl073106

Abstract: Slow seismic velocity anomalies are commonly imaged beneath subducting slabs in tomographic studies, yet a unifying explanation for their distribution has not been agreed upon. In South America two such anomalies have been imaged associated… read more here.

Keywords: slow velocity; south america; slab; velocity ... See more keywords

Striking genetic homogeneity in the widespread South American bracken.

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Published in 2024 at "American journal of botany"

DOI: 10.1002/ajb2.16374

Abstract: PREMISE Bracken (Pteridium, Dennstaedtiaceae) is a cosmopolitan genus of aggressive disturbance colonizers that are toxic to agricultural livestock. The taxonomy of Pteridium has been treated in multiple schemes, ranging from one to six species worldwide,… read more here.

Keywords: homogeneity widespread; striking genetic; south america; bracken ... See more keywords

Morphological variation among late holocene Mexicans: Implications for discussions about the human occupation of the Americas.

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Published in 2017 at "American journal of physical anthropology"

DOI: 10.1002/ajpa.23186

Abstract: OBJECTIVES Cranial morphology has previously been used to estimate phylogenetic relationships among populations, and has been an important tool in the reconstruction of ancient human dispersals across the planet. In the Americas, previous morphological studies… read more here.

Keywords: variation; late holocene; series; morphological affinities ... See more keywords

Contrasting the ancestry patterns of three distinct population groups from the northernmost region of South America.

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Published in 2020 at "American journal of physical anthropology"

DOI: 10.1002/ajpa.24130

Abstract: Colombia, located in the north of the South American subcontinent is a country of great interest for population genetic studies given its high ethnic and cultural diversity represented by the admixed population, 102 indigenous peoples… read more here.

Keywords: contrasting ancestry; ancestry; population; native american ... See more keywords

Migratory connectivity and local site fidelity in red knots on the southern Pacific coast of South America

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Published in 2019 at "Aquatic Conservation: Marine and Freshwater Ecosystems"

DOI: 10.1002/aqc.3044

Abstract: The red knot Calidris canutus, a flagship migratory waterbird species, continues to decline within the Americas. One major unanswered question is the status and connectivity of birds spending the non‐breeding season on the southern Pacific… read more here.

Keywords: coast south; red knots; coast; southern pacific ... See more keywords

Optimisation of an Environmental DNA‐Based Approach for Assessing Freshwater Fish Biodiversity in Southernmost South America

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Published in 2025 at "Aquatic Conservation: Marine and Freshwater Ecosystems"

DOI: 10.1002/aqc.70112

Abstract: In the Southernmost region of South America (52°‐55° S), the native freshwater fish biodiversity is extremely low, and invasive species pose a constant threat. Environmental DNA (eDNA) has emerged as a powerful tool for studying fish… read more here.

Keywords: freshwater fish; fish biodiversity; biodiversity; south america ... See more keywords

A tribute to Professor Ronei J. Poppi, a pioneer of multivariate calibration in South America and a prolific mentor of chemometricians in Brazil

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Published in 2020 at "Journal of Chemometrics"

DOI: 10.1002/cem.3284

Abstract: It was with great regret that we received the incredibly sad news of the untimely death of Professor Ronei Jesus Poppi (Figure 1), on the last April 25 in the city of Campinas, S~ao Paulo… read more here.

Keywords: chemistry; ronei; calibration; multivariate calibration ... See more keywords

Biogeographical patterns of species richness in stream diatoms from southwestern South America

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Published in 2024 at "Ecology and Evolution"

DOI: 10.1002/ece3.11156

Abstract: Abstract The latitudinal diversity gradient (LDG) hypothesis has been validated for many taxon groups, but so far, stream diatoms have not conformed to this pattern. Research on diatoms that includes data from South America is… read more here.

Keywords: historical factors; stream diatoms; species richness; south america ... See more keywords

Can significant trends be detected in surface air temperature and precipitation over South America in recent decades

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Published in 2017 at "International Journal of Climatology"

DOI: 10.1002/joc.4792

Abstract: Trends in near-surface air temperature and precipitation over South America are examined for the periods 1975–2004 and 1955–2004, respectively, using multiple observational and climate model data sets. The results for observed near-surface air temperature show… read more here.

Keywords: air temperature; temperature; precipitation; surface air ... See more keywords

Austral summer precipitation biases over tropical South America in five CMIP5 earth system models

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Published in 2020 at "International Journal of Climatology"

DOI: 10.1002/joc.6595

Abstract: This study examined the historical (1980–2005) austral summer precipitation in Tropical South America (SA) simulated by five Earth System Models (ESM) from the Coupled Model Intercomparison Project Phase 5 (CMIP5). All simulations show a band… read more here.

Keywords: south america; tropical south; austral summer; precipitation ... See more keywords

Assessment of South America summer rainfall climatology and trends in a set of global climate models large ensembles

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Published in 2020 at "International Journal of Climatology"

DOI: 10.1002/joc.6643

Abstract: The purpose of this study is to assess the ability of a set of large ensembles (LE) of Global Climate Model (GCM) simulations from the Multi‐Model Large Ensemble Archive, Coupled Model Intercomparison Project Phase 6… read more here.

Keywords: climate; south america; variability; model ... See more keywords