Spatial and temporal patterns of diversification on the Amazon: A test of the riverine hypothesis for all diurnal primates of Rio Negro and Rio Branco in Brazil

Boubli, Jean P.; Ribas, Camila C.; Alfaro, Jessica W. Lynch; Alfaro, Michael E.; Silva, Maria Nazareth F. da; Pinho, Gabriela Medeiros de; Farias, Izeni Pires

doi:10.1016/j.ympev.2014.09.005

Cited by 170 publications

(152 citation statements)

References 69 publications

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“…At a regional scale, the fluvial dynamics of the Amazon basin seem to play an important role in the origin and maintenance of diversity patterns (Wallace, ). The influence of large rivers on the distributional patterns of some vertebrates, especially birds (Cracraft, ; da Silva et al ., ) and monkeys (Boubli et al ., ), strongly supports this hypothesis. Nevertheless, Amazon basin rivers vary in hydromorphological dynamics and evolution (Sioli, ), and therefore exert an unequal influence on the evolutionary history of the biota (Gascon et al ., ; Bates et al ., ).…”

Section: Introductionsupporting

confidence: 77%

The combined influence of riverine barriers and flooding gradients on biogeographical patterns for amphibians and squamates in south‐eastern Amazonia

Moraes

Pavan²,

Barros

et al. 2016

Journal of Biogeography

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Aim Our aim was to investigate how the distance to water (flooding gradients) and riverine barriers (Tapajós and Jamanxim rivers) influence the distributional patterns of amphibian and squamate assemblages in the middle Tapajós River region, south‐eastern Amazonia. We also considered the planned hydroelectric dams on both rivers in reviewing the possible impacts of these factors on the amphibian and squamate assemblages. Location Middle Tapajós River system, south‐eastern Amazonia. Methods We conducted diurnal and nocturnal surveys combining pitfall traps and active searches along both banks of the Tapajós and Jamanxim rivers. We identified specimens using an integrative morphological, acoustic, ecological and molecular approach and evaluated the influence of riverine barriers and distance to water using uni‐ and multivariate ordinations, regressions and ANOVA. Results We found changes in species composition for both groups along the flooding gradient and differential riverine barrier effects. The rivers restricted the distribution of 33% of the amphibian species and 8% of the squamates. For amphibians, the main distributional barrier was the Tapajós River, while for squamates both rivers were of similar importance. The assemblages most affected by riverine barriers were non‐riparian amphibians and squamates, as well as riparian amphibians associated with small streams. The functional groups most affected were small, diurnal terrestrial amphibians and small–medium, diurnal partly tree‐dwelling squamates. Main conclusions The Tapajós River is a distributional boundary for lineages centred in western and eastern Amazonia. The fact that many taxa occur on both banks suggests that the Tapajós is a recent or semi‐permeable barrier, while the Jamanxim is an even more recent or weaker barrier. Anthropogenic activities that affect water level, flooding cycles and river flow may influence these natural patterns and cause changes to the equilibrium of the riverine barrier effect. Studies seeking to identify these influences should focus on the most affected functional groups.

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Section: Introductionsupporting

confidence: 77%

The combined influence of riverine barriers and flooding gradients on biogeographical patterns for amphibians and squamates in south‐eastern Amazonia

Moraes

Pavan²,

Barros

et al. 2016

Journal of Biogeography

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“…Indeed, the frequent gene flow slowed population differentiation within the Rio Branco by promoting genetic admixtures and concomitant population homogenization. Nonetheless, zoological studies also focused on the Rio Branco found support for the Riverine Barrier hypothesis (Bonvicino et al., ; Boubli et al., , ; Naka et al., ). For instance, Boubli et al.…”

Section: Discussionmentioning

confidence: 98%

“…Dispersal barriers have played a pervasive role in species diversification and shaping patterns of genetic diversity for a plethora of species worldwide (e.g., Boubli et al., ; Naka, Bechtoldt, Henriques, & Brumfield, ; Nazareno, Dick, & Lohmann, ; Peres, Patton, & da Silva, ). Almost two centuries ago, Wallace () proposed the Riverine Barrier hypothesis based on observations of monkey species distributions in the Amazon Basin.…”

Section: Introductionmentioning

confidence: 99%

“…Almost two centuries ago, Wallace () proposed the Riverine Barrier hypothesis based on observations of monkey species distributions in the Amazon Basin. The Amazon River and its tributaries have subsequently been shown to drive allopatric population differentiation for multiple taxa due to their potential role in population isolation (e.g., Boubli et al., ; Collevatti, Leoi, Leite, & Gribel, ; Gascon et al., ; Link et al., ; Moraes, Pavan, Barros, & Ribas, ; Naka et al., ; Nazareno, Dick, et al., ; Ribas, Aleixo, Nogueira, Miyaki, & Cracraft, ). Indeed, Wallace's “Hypothesis of the Rivers” (1854) presumes that the riverine barriers may explain areas of endemism throughout the Amazon Basin.…”

Section: Introductionmentioning

confidence: 99%

“…(Rubiaceae), were selected to evaluate Wallace's Riverine Barrier hypothesis in the Amazon Basin. These three plants species were chosen due to their high abundance on both banks (left and right) of the Rio Branco, which is an allopatric river barrier for primates (Boubli et al., , ) and birds (Bonvicino et al., ; Naka et al., ). Each of these plant species are described below.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Tangled banks: A landscape genomic evaluation of Wallace's Riverine barrier hypothesis for three Amazon plant species

2019

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Wallace's Riverine Barrier hypothesis is one of the earliest biogeographic explanations for Amazon speciation, but it has rarely been tested in plants. In this study, we used three woody Amazonian plant species to evaluate Wallace's Hypothesis using tools of landscape genomics. We generated unlinked single‐nucleotide polymorphism (SNP) data from the nuclear genomes of 234 individuals (78 for each plant species) across 13 sampling sites along the Rio Branco, Brazil, for Amphirrhox longifolia (8,075 SNPs), Psychotria lupulina (9,501 SNPs) and Passiflora spinosa (14,536 SNPs). Although significantly different migration rates were estimated between species, the population structure data do not support the hypothesis that the Rio Branco—an allopatric barrier for primates and birds—is a significant genetic barrier for Amphirrhox longifolia, Passiflora spinosa or Psychotria lupulina. Overall, we demonstrated that medium‐sized rivers in the Amazon Basin, such as the Rio Branco, are permeable barriers to gene flow for animal‐dispersed and animal‐pollinated plant species.

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Botany and geogenomics: Constraining geological hypotheses in the neotropics with large‐scale genetic data derived from plants

Bedoya

2024

American J of Botany

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Decades of empirical research have revealed how the geological history of our planet shaped plant evolution by establishing well‐known patterns (e.g., how mountain uplift resulted in high rates of diversification and replicate radiations in montane plant taxa). This follows a traditional approach where botanical data are interpreted in light of geological events. In this synthesis, I instead describe how by integrating natural history, phylogenetics, and population genetics, botanical research can be applied alongside geology and paleontology to inform our understanding of past geological and climatic processes. This conceptual shift aligns with the goals of the emerging field of geogenomics. In the neotropics, plant geogenomics is a powerful tool for the reciprocal exploration of two long standing questions in biology and geology: how the dynamic landscape of the region came to be and how it shaped the evolution of the richest flora. Current challenges that are specific to analytical approaches for plant geogenomics are discussed. I describe the scale at which various geological questions can be addressed from biological data and what makes some groups of plants excellent model systems for geogenomics research. Although plant geogenomics is discussed with reference to the neotropics, the recommendations given here for approaches to plant geogenomics can and should be expanded to exploring long‐standing questions on how the earth evolved with the use of plant DNA.

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Spatial and temporal patterns of diversification on the Amazon: A test of the riverine hypothesis for all diurnal primates of Rio Negro and Rio Branco in Brazil

Cited by 170 publications

References 69 publications

The combined influence of riverine barriers and flooding gradients on biogeographical patterns for amphibians and squamates in south‐eastern Amazonia

The combined influence of riverine barriers and flooding gradients on biogeographical patterns for amphibians and squamates in south‐eastern Amazonia

Tangled banks: A landscape genomic evaluation of Wallace's Riverine barrier hypothesis for three Amazon plant species

Botany and geogenomics: Constraining geological hypotheses in the neotropics with large‐scale genetic data derived from plants

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