Eastern extension of the geographic range of Mico emiliae

Andrade, Roberto Portella De; Mourthé, Ítalo Martins da Costa; Saccardi, Victor; Hernández-Ruz, Emil José

doi:10.1590/1809-4392201704392

Cited by 5 publications

(1 citation statement)

References 6 publications

(9 reference statements)

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“…Stretches considerably narrow and shallow can allow river crossings, thus increasing dispersal chances. This can be the case of Mico emiliae, which appears to have crossed the headwaters of the Iriri River, thus allowing the extension of its distribution as far to the western bank of the Xingu River (Andrade et al, 2018). Considering that most Platyrrhini genera had their origin estimated to at least 6 million years ago (Schneider et al, 2001;Lynch Alfaro et al, 2012;Byrne et al, 2018), there was enough time for them to cross through river waterheads, thus expanding across several Amazonian interfluves in some cases.…”

Section: Discussionmentioning

confidence: 99%

Filtering Effect of Large Rivers on Primate Distribution in the Brazilian Amazonia

et al. 2022

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Over a century after Wallace’s proposition of the riverine barrier hypothesis, the role of rivers in the diversification of species remains a matter of interest in Amazon biogeography. Amazonian rivers, in particular those large and fast flowing rivers, are widely recognized to act as barriers to the dispersal of some organisms. However, the extent to which primate species changes across interfluves (β-diversity) in response to river features remains to be explicitly tested. In this study, we examine how river characteristics affect the variation in taxonomic and phylogenetic β-diversity to elucidate the ecological processes behind the differences in primate assemblages between neighboring interfluves in the Brazilian Amazonia. We compiled International Union for Conservation of Nature (IUCN) distribution maps of 80 river-bounded primate species in 10 interfluves separated by major rivers throughout the Brazilian Amazonia. We assessed both the taxonomic (disregarding phylogenetic relationships between species) and phylogenetic β-diversities. We applied multiple linear models to evaluate whether annual discharge, sinuosity, and reflectance (as a proxy for amount of sediments) in each river or river section that separates neighboring interfluves make rivers effective barriers to primates. We found that mean discharge has a positive effect, while both sinuosity and amount of sediments have negative effects on primate β-diversity. These variables have significant effects on total taxonomic and phylogenetic β-diversity between neighboring interfluves, and their species turnover components. River features, however, have no effect on species richness differences. Genera are capable of traversing almost all interfluves, but species are replaced by others in opposite interfluves. Discharge affected both small- and large-sized primate total β-diversity, but sinuosity only affected large-sized primate assemblages in neighboring interfluves. Our results indicate that although Amazonian rivers act as barriers for many primate species, this barrier effect seems limited to the short/medium time scales, as primate lineages are able to cross them over long-time scales.

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Section: Discussionmentioning

confidence: 99%

Filtering Effect of Large Rivers on Primate Distribution in the Brazilian Amazonia

et al. 2022

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Primates of Brazilian Amazonia: Knowledge, Research Gaps, and Conservation Priorities

Spironello,

Barnett,

Jucá

et al. 2023

Amazonian Mammals

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An integrative analysis uncovers a new, pseudo-cryptic species of Amazonian marmoset (Primates: Callitrichidae: Mico) from the arc of deforestation

Costa‐Araújo

Silva-Jr.

Boubli

et al. 2021

Sci Rep

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Amazonia has the richest primate fauna in the world. Nonetheless, the diversity and distribution of Amazonian primates remain little known and the scarcity of baseline data challenges their conservation. These challenges are especially acute in the Amazonian arc of deforestation, the 2500 km long southern edge of the Amazonian biome that is rapidly being deforested and converted to agricultural and pastoral landscapes. Amazonian marmosets of the genus Mico are little known endemics of this region and therefore a priority for research and conservation efforts. However, even nascent conservation efforts are hampered by taxonomic uncertainties in this group, such as the existence of a potentially new species from the Juruena–Teles Pires interfluve hidden within the M. emiliae epithet. Here we test if these marmosets belong to a distinct species using new morphological, phylogenomic, and geographic distribution data analysed within an integrative taxonomic framework. We discovered a new, pseudo-cryptic Mico species hidden within the epithet M. emiliae, here described and named after Horacio Schneider, the pioneer of molecular phylogenetics of Neotropical primates. We also clarify the distribution, evolutionary and morphological relationships of four other Mico species, bridging Linnean, Wallacean, and Darwinian shortfalls in the conservation of primates in the Amazonian arc of deforestation.

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Eastern extension of the geographic range of Mico emiliae

Cited by 5 publications

References 6 publications

Filtering Effect of Large Rivers on Primate Distribution in the Brazilian Amazonia

Filtering Effect of Large Rivers on Primate Distribution in the Brazilian Amazonia

Primates of Brazilian Amazonia: Knowledge, Research Gaps, and Conservation Priorities

An integrative analysis uncovers a new, pseudo-cryptic species of Amazonian marmoset (Primates: Callitrichidae: Mico) from the arc of deforestation

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