Article
Environmental Sciences
Fernando Mayer Pelicice, Angelo Antonio Agostinho, Alberto Akama, Jose Dilermando Andrade Filho, Valter M. Azevedo-Santos, Marcus Vinicius Moreira Barbosa, Luis Mauricio Bini, Marcelo Fulgencio Guedes Brito, Carlos Roberto dos Anjos Candeiro, Erica Pellegrini Caramaschi, Priscilla Carvalho, Rodrigo Assis de Carvalho, Leandro Castello, Davi Borges das Chagas, Carine Cavalcante Chamon, Guarino Rinaldi Colli, Vanessa Salete Daga, Murilo Sversut Dias, Jose Alexandre Felizola Diniz Filho, Philip Fearnside, Wagner de Melo Ferreira, Diego Azevedo Zoccal Garcia, Tiago Kutter Krolow, Rodrigo Ferreira Kruger, Edgardo Manuel Latrubesse, Dilermando Pereira Lima Junior, Solange de Fatima Lolis, Fabyano Alvares Cardoso Lopes, Rafael Dias Loyola, Andre Lincoln Barroso Magalhaes, Adriana Malvasio, Paulo De Marco Jr, Pedro Ribeiro Martins, Rosana Mazzoni, Joao Carlos Nabout, Mario Luis Orsi, Andre Andrian Padial, Hasley Rodrigo Pereira, Thiago Nilton Alves Pereira, Phamela Bernardes Peronico, Miguel Petrere Jr, Renato Torres Pinheiro, Etiene Fabbrin Pires, Paulo Santos Pompeu, Thiago Costa Goncalves Portelinha, Edson Eyji Sano, Vagner Leonardo Macedo dos Santos, Paloma Helena Fernandes Shimabukuro, Idelina Gomes da Silva, Lucas Barbosa e Souza, Francisco Leonardo Tejerina-Garro, Mariana Pires de Campos Telles, Fabricio Barreto Teresa, Sidinei Magela Thomaz, Livia Helena Tonella, Ludgero Cardoso Galli Vieira, Jean Ricardo Simoes Vitule, Jansen Zuanon
Summary: The Tocantins-Araguaia Basin, one of the largest river systems in South America, is facing serious threats to its biodiversity and ecosystem services due to capital-concentrating activities. Formulating better policies is crucial to ensure the sustainability of the basin in the long term.
ENVIRONMENTAL MANAGEMENT
(2021)
Article
Fisheries
Alexander Urbano-Bonilla, Alejandro Londono-Burbano, Tiago P. Carvalho
Summary: A new rheophilic species of the genus Rineloricaria is described for the Amazon basin in Colombia. The new species differs from its congeners in several morphological characteristics and can be distinguished from a similar species by its pectoral fin rays and lower lip features.
JOURNAL OF FISH BIOLOGY
(2023)
Article
Zoology
Antonio Moraes-da-Silva, Renata Cecilia Amaro, Pedro M. Sales Nunes, Miguel Trefaut Rodrigues, Felipe Franco Curcio
Summary: A new species of watersnake has been described based on coloration and hemipenial morphology, as well as molecular phylogenetic analysis. This species resembles another species superficially, but genetic evidence indicates it is a distinct sister group. It appears to be restricted to the Tocantins-Araguaia River Basin, potentially due to vicariant processes that promoted its differentiation.
Article
Environmental Sciences
Haijun Wei, Longwu Geng, Xinchi Shang, Lei Li, Bo Ma, Yuyong Zhang, Wang Li, Wei Xu
Summary: This study determined the complete mitochondrial genome of the Pseudaspius leptocephalus fish and evaluated the genetic diversity of four populations in the Heilongjiang River Basin using COI partial sequences. The results showed variable sites and haplotypes in the COI gene, and nucleotide and haplotype diversity varied among populations. Moderate genetic differentiation was observed between the EH population and others, but individuals from EH population could mate randomly with individuals from other populations. Neutrality tests indicated population expansion in the MH and FY populations, but mismatch distribution analysis suggested overall population stability. These findings contribute to the protection and utilization of P. leptocephalus germplasm resources and provide valuable information on its population structure and genetic diversity.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Zoology
Renata Rubia Ota, Gabriel de Carvalho Depra, Sven Kullander, Weferson Junio da Graca, Carla Simone Pavanelli
Summary: A new species of Satanoperca is described, with unique color pattern characters compared to congeneric species, and grouped into the Satanoperca jurupari species group known for lacking black rounded blotches on the flank and having low meristic values. The ontogeny of melanophore marks in the S. jurupari species group is discussed, revealing different arrangements on the flank and numerous marks on the head. The morphological diversity within the S. jurupari species group is also explored.
NEOTROPICAL ICHTHYOLOGY
(2021)
Article
Ecology
Zaixuan Zhong, Jiajia Fan, Huanhuan Su, Yaya Li, Dongmei Ma, Huaping Zhu
Summary: This study investigates the genetic source and diversity of paddy field carp (PF-carp) populations along the Pearl River basin. The results reveal genetic introgression among PF-carp populations and identify common genetic origins. The genetic differentiation among strains is influenced by intensive breeding, farmer connections, and geographic barriers. These findings provide valuable insights into the status of germplasm resources among PF-carp.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2022)
Article
Zoology
Oldrich Rican, Anezka Pangracova, Cecilia E. Rodriguez Haro, Stepanka Ricanova
Summary: Based on recent discoveries, Bujurquina is identified as the most widely distributed and species-rich cichlid genus in the western Amazon of South America. This study uses morphological and molecular data to test the hypothesis that each major western Amazon basin contains multiple endemic Bujurquina species, which are adapted to specific upland and lowland habitats. The results support the hypothesis, showing consistent differences in body shape and proportions between upland and lowland Bujurquina species across the studied basins.
JOURNAL OF VERTEBRATE BIOLOGY
(2023)
Article
Fisheries
Xiaoli Ke, Jie Liu, Fengying Gao, Jianmeng Cao, Zhigang Liu, Maixin Lu
Summary: Due to environmental pollution and overfishing, the genetic resources of wild loach have been degraded. The study investigated the genetic diversity of different geographical populations of loach in the Pearl River Basin and found that there is abundant genetic diversity, which can be used for breeding. The results provide a theoretical basis for the protection and utilization of loach natural resources in the Pearl River Basin of China.
AQUACULTURE REPORTS
(2022)
Review
Biodiversity Conservation
Carine Cavalcante Chamon, Jane Piton Serra, Priscila Camelier, Angela Maria Zanata, Ilana Fichberg, Manoela Maria Ferreira Marinho
Summary: The Tocantins-Araguaia River basin has high endemism of fish species, but is under threat from human activities such as dam construction. Priority should be given to the preservation of the upper Tocantins River.
Article
Multidisciplinary Sciences
Aline Mourao Ximenes, Pedro Senna Bittencourt, Valeria Nogueira Machado, Tomas Hrbek, Izeni Pires Farias
Summary: South American freshwater ichthyofauna is the most diverse on the planet, but its diversity is vastly underestimated. This study investigated lineage diversity within the Geophagus sensu stricto species group and identified several undescribed species threatened by human activities affecting their habitats. The importance of combining DNA and morphological data in biodiversity assessment studies in taxonomically diverse tropical biotas was also highlighted.
Article
Environmental Sciences
Chunyan Qin, Yifei Ge, Jin Gao, Shengli Zhou, Jian Yu, Beixin Wang, Thibault Datry
Summary: Identifying ecological drivers and understanding their effects on metacommunity and beta diversity are crucial for bioassessment and river management. This study explored the impacts of anthropogenic influences on macroinvertebrate communities in the Yangtze River Delta, China, and found that both species sorting and dispersal shaped the communities, with their importance varying with the levels of anthropogenic impacts. Environmental variables and spatial processes should be considered for effective ecosystem management.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Plant Sciences
Analu Souza, Giovanna C. Giudicelli, Marcelo C. Teixeira, Caroline Turchetto, Sandro L. Bonatto, Loreta B. Freitas
Summary: Population genetic structure is influenced by historical events, ecological conditions, and life traits. The three rare species of Petunia in subtropical highland grasslands show low gene exchange and are considered endangered according to IUCN criteria, with anthropic activity posing the main risk to their survival.
BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
(2022)
Article
Marine & Freshwater Biology
Zhongya Xuan, Tao Jiang, Hongbo Liu, Xiubao Chen, Jian Yang
Summary: Through genetic analysis and microchemical analysis, it was found that Coilia nasus and Coilia brachygnathus are two distinct species with a strong but permeable reproductive barrier. Both species exhibit migratory-resident ecological dimorphism, with Coilia brachygnathus predominantly a resident species and Coilia nasus predominantly an anadromous species.
Article
Environmental Sciences
Leandro avila, Reinaldo Silveira, Andre Campos, Nathalli Rogiski, Camila Freitas, Cassia Aver, Fernando Fan
Summary: The assessment of seasonal streamflow forecasting is crucial for effective water resource management. This study evaluated the ECMWF-SEAS5 precipitation product and four hydrological models for seasonal streamflow forecasts in the Legal Amazon region. The HBV model provided better representation of hydrological conditions and the SMAP model achieved higher performance for raw forecasts. Bias correction greatly improved the accuracy of forecasts for all models, particularly during dry periods.
Article
Biodiversity Conservation
F. C. Manosso, Zb Zwolinski, A. Najwer, B. T. Basso, D. S. Santos, M. Pagliarini
Summary: Geodiversity refers to the variety of abiotic elements and processes present at different scales and dimensions in an area. This study quantified and assessed geodiversity in the Marrecas River drainage basin in southern Brazil, finding lower geodiversity in certain interfluves and estuary areas, and higher geodiversity in valleys. The results highlight the importance of not solely focusing on the richness of geodiversity, but also considering the spatial distribution of environmental components in the study area.
ECOLOGICAL INDICATORS
(2021)
Article
Biochemistry & Molecular Biology
Antonio M. G. Martins-Junior, Iracilda Sampaio, Artur Silva, Jean Boubli, Tomas Hrbek, Izeni Farias, Manuel Ruiz-Garcia, Horacio Schneider
Summary: Night monkeys, a widely distributed genus of Neotropical primates, have a poorly understood taxonomy and biogeography. This study used molecular markers to infer the phylogeny, divergence times, and biogeography of the genus. Nine taxa of Aotus were supported, rejecting the existence of monophyletic red-necked and grey-necked species groups. The study suggests a taxonomic reclassification of the genus and highlights the role of dispersal and geographic changes in the origin and diversification of Aotus.
MOLECULAR PHYLOGENETICS AND EVOLUTION
(2022)
Article
Biochemistry & Molecular Biology
Antoine Fouquet, Josselin Cornuault, Miguel T. Rodrigues, Fernanda P. Werneck, Tomas Hrbek, Andres R. Acosta-Galvis, David Massemin, Philippe J. R. Kok, Raffael Ernst
Summary: The genus Pipa is a species-poor clade of Neotropical frogs that is known for its bizarre-looking anatomy. The diversity and phylogenetic relationships within Pipa are poorly understood, as are their historical biogeography and the evolution of certain striking features. This study used DNA sequencing to identify 15 main lineages within Pipa and found that the genus originated in the early Neogene period in the Amazon region. The different lineages of Pipa further diversified and spread to other regions, following patterns observed in other co-distributed groups. The study also suggests that certain features, such as the absence of teeth, were lost or acquired independently in different lineages.
MOLECULAR PHYLOGENETICS AND EVOLUTION
(2022)
Article
Zoology
Cleuton Lima Miranda, Mario da Silva Nunes, Arielli Fabricio Machado, Izeni Pires Farias, Fernando Heberson Menezes, Natalia Carneiro Ardente, Manoel Dos Santos-Filho, Yennie Katarina Bredin, Maria Nazareth F. da Silva
Summary: This article describes a new species of Metachirus in the Brazilian Amazon, using multiple sources of evidence such as morphology, genetics, and geography. This new species is distinct from known species and is found in the Xingu river basin, which is under strong anthropogenic pressure. This highlights the need for conservation strategies in the region.
Review
Multidisciplinary Sciences
Gerson Paulino Lopes, Fabio Rohe, Fabricio Bertuol, Erico Polo, Ivan Junqueira Lima, Joao Valsecchi, Tamily Carvalho Melo Santos, Stephen D. Nash, Maria Nazareth Ferreira da Silva, Jean P. Boubli, Izeni Pires Farias, Tomas Hrbek
Summary: In this study, a taxonomic revision of S. mystax was carried out using field surveys and genomic data testing, revealing the existence of three lineages/species. Saguinus mystax mystax from the left bank of the Jurua River was raised to species level, and a new species was discovered and described from the Jurua-Tefe interfluve previously attributed to S. mystax mystax. The subspecies S. m. pileatus and S. m. pluto were recognized as a single species under a new nomenclatural combination, but their phenotypic distinction and allopatric distribution suggest an early stage of speciation.
Article
Fisheries
Aline Mourao Ximenes, Valeria Nogueira Machado, Emil Jose Hernandez-Ruz, Fabio de Lima Muniz, Tomas Hrbek, Izeni Pires Farias
Summary: The discovery and characterization of cryptic diversity is important for conservation and management, especially for under-studied and underestimated ichthyofauna. In this study, the researchers investigated the existence of cryptic diversity in Pellona flavipinnis from the Amazon basin. Using genetic sequences and microsatellite loci, they found two spatially structured lineages of P. flavipinnis in the Amazon basin, differentiated from the population in the Parana River. Multiple methods of species delimitation confirmed the presence of these two lineages, and morphometric measurements showed no shape differences between them.
JOURNAL OF FISH BIOLOGY
(2023)
Article
Multidisciplinary Sciences
Hong Gao, Tobias Hamp, Jeffrey Ede, Joshua G. Schraiber, Jeremy McRae, Moriel Singer-Berk, Yanshen Yang, Anastasia S. D. Dietrich, Petko P. Fiziev, Lukas F. K. Kuderna, Laksshman Sundaram, Yibing Wu, Aashish Adhikari, Yair Field, Chen Chen, Serafim Batzoglou, Francois Aguet, Gabrielle Lemire, Rebecca Reimers, Daniel Balick, Mareike C. Janiak, Martin Kuhlwilm, Joseph D. Orkin, Shivakumara Manu, Alejandro Valenzuela, Juraj Bergman, Marjolaine Rousselle, Felipe Ennes Silva, Lidia Agueda, Julie Blanc, Marta Gut, Dorien de Vries, Ian Goodhead, R. Alan Harris, Muthuswamy Raveendran, Axel Jensen, Idriss S. Chuma, Julie E. Horvath, Christina Hvilsom, David Juan, Peter Frandsen, Fabiano R. de Melo, Fabricio Bertuol, Hazel Byrne, Iracilda Sampaio, Izeni Farias, Joao Valsecchi do Amaral, Mariluce Messias, Maria N. F. da Silva, Mihir Trivedi, Rogerio Rossi, Tomas Hrbek, Nicole Andriaholinirina, Clement J. Rabarivola, Alphonse Zaramody, Clifford J. Jolly, Jane Phillips-Conroy, Gregory Wilkerson, Christian Abee, Joe H. Simmons, Eduardo Fernandez-Duque, Sree Kanthaswamy, Fekadu Shiferaw, Dongdong Wu, Long Zhou, Yong Shao, Guojie Zhang, Julius D. Keyyu, Sascha Knauf, Minh D. Le, Esther Lizano, Stefan Merker, Arcadi Navarro, Thomas Bataillon, Tilo Nadler, Chiea Chuen Khor, Jessica Lee, Patrick Tan, Weng Khong Lim, Andrew C. Kitchener, Dietmar Zinner, Ivo Gut, Amanda Melin, Katerina Guschanski, Mikkel Heide Schierup, Robin M. D. Beck, Govindhaswamy Umapathy, Christian Roos, Jean P. Boubli, Monkol Lek, Shamil Sunyaev, Anne O'Donnell-Luria, Heidi L. Rehm, Jinbo Xu, Jeffrey Rogers, Tomas Marques-Bonet, Kyle Kai-How Farh
Article
Multidisciplinary Sciences
Lukas F. K. Kuderna, Hong Gao, Mareike C. Janiak, Martin Kuhlwilm, Joseph D. Orkin, Thomas Bataillon, Shivakumara Manu, Alejandro Valenzuela, Juraj Bergman, Marjolaine Rousselle, Felipe Ennes Silva, Lidia Agueda, Julie Blanc, Marta Gut, Dorien de Vries, Ian Goodhead, R. Alan Harris, Muthuswamy Raveendran, Axel Jensen, Idrissa S. Chuma, Julie E. Horvath, Christina Hvilsom, David Juan, Peter Frandsen, Joshua G. Schraiber, Fabiano R. de Melo, Fabricio Bertuol, Hazel Byrne, Iracilda Sampaio, Izeni Farias, Joao Valsecchi, Malu Messias, Maria N. F. da Silva, Mihir Trivedi, Rogerio Rossi, Tomas Hrbek, Nicole Andriaholinirina, Clement J. Rabarivola, Alphonse Zaramody, Clifford J. Jolly, Jane Phillips-Conroy, Gregory Wilkerson, Christian Abee, Joe H. Simmons, Eduardo Fernandez-Duque, Sree Kanthaswamy, Fekadu Shiferaw, Dongdong Wu, Long Zhou, Yong Shao, Guoji Zhang, Julius D. Keyyu, Sascha Knauf, Minh D. Le, Esther Lizano, Stefan Merker, Arcadi Navarro, Tilo Nadler, Chiea Chuen Khor, Jessica Lee, Patrick Tan, Weng Khong Lim, Andrew C. Kitchener, Dietmar Zinner, Ivo Gut, Amanda D. Melin, Katerina Guschanski, Mikkel Heide Schierup, Robin M. D. Beck, Govindhaswamy Umapathy, Christian Roos, Jean P. Boubli, Jeffrey Rogers, Kyle Kai-How Farh, Tomas Marques Bonet
Summary: The rich diversity of morphology and behavior displayed across primate species provides valuable insights into the impact of genomic diversity on biological processes. This study analyzed high-coverage whole-genome data from 233 primate species, representing a significant portion of the primate diversity, to create a phylogeny and reassess evolutionary divergence times. The study found associations between genetic diversity, climate, and sociality, but not extinction risk, and identified recurring missense mutations previously thought to be specific to humans. This research has significant implications for future primate genomic studies.
Article
Genetics & Heredity
Jeferson Carneiro, Iracilda Sampaio, Jose de S. e Silva, Antonio Martins, Izeni Farias, Tomas Hrbek, Jean Boubli, Horacio Schneider
Summary: Pitheciines have unique dental adaptations that allow them to eat fruits with hard pericarps, making them important seed predators. A review of the Chiropotes genus reveals that there are five species which likely originated in the Rondonia and Tapajos regions of the Amazon. The speciation events within Chiropotes were likely influenced by the radiation and founder effects associated with the formation of the Amazonian basins.
Article
Multidisciplinary Sciences
Diana Sanchez-Bernal, Jose Gregorio Martinez, Izeni Pires Farias, Tomas Hrbek, Susana Caballero
Summary: The Neotropics are home to a diverse range of freshwater fish species, including the cardinal tetra, which is widely traded in the ornamental fish market. This study investigated the phylogeography and population structure of the cardinal tetra, as well as potential migration routes between the Orinoco and Negro basins. The results suggest that river capture, physical barriers, and ecological factors may have played a role in shaping the distribution and genetic patterns of the cardinal tetra.
Article
Multidisciplinary Sciences
Ingrid Nunes, Kelmer Passos, Aline Mourao Ximenes, Tomas Hrbek, Izeni Pires Farias
Summary: This study assessed the genetic diversity and spatial and temporal structure of Semaprochilodus insignis in the Brazilian Amazon basin using mtDNA control region sequencing (n=241) and eight microsatellite loci (n=180). The results showed homogeneous genetic diversity and the absence of spatial and temporal genetic structure, indicating a large panmictic population in the Brazilian Amazon.
Article
Zoology
Gerson Paulino Lopes, Roberta C. Oliveira, Tamily C. M. Santos, Paul M. Velazco, Paulo Estefano D. Bobrowiec, Maria Nazareth F. Silva, Tomas Hrbek, Izeni P. Farias
Summary: In this study, we report the discovery of Platyrrhinus guianensis in the Brazilian Amazon, extending its distribution range beyond Guyana and Suriname. This finding suggests the potential misidentification of Platyrrhinus guianensis as other similar species in scientific collections.
Article
Evolutionary Biology
Gerson Paulino Lopes, Fabio Rohe, Fabricio Bertuol, Erico Polo, Joao Valsecchi, Tamily Carvalho Melo Santos, Felipe Ennes Silva, Ivan Junqueira Lima, Ricardo Sampaio, Maria Nazareth Ferreira da Silva, Claudia Regina Silva, Jean Boubli, Rodrigo Costa-Araujo, Benoit de Thoisy, Manuel Ruiz-Garcia, Marcelo Gordo, Iracilda Sampaio, Izeni Pires Farias, Tomas Hrbek
Summary: This study presents a comprehensive dated genomic phylogeny of all known species and subspecies of Tamarinus based on double digest restriction associated DNA. The research confirms Tamarinus imperator and Tamarinus subgrisescens as distinct species and supports the taxonomic proposal of dividing Saguinus into three genera.
Article
Multidisciplinary Sciences
Aureo Banhos, Tania Margarete Sanaiotti, Renan Coser, Waleska Gravena, Francisca Helena Aguiar-Silva, Mylena Kaizer, Tomas Hrbek, Izeni Pires Farias
Summary: The Harpy Eagle, the largest eagle species with reversed sexual size dimorphism, exhibits a female-biased sex ratio at all life stages, indicating an evolutionary ecological pattern. An earlier sexual maturation age of males may compensate for the female bias.
ROYAL SOCIETY OPEN SCIENCE
(2023)