A cladistic revision of the genus<i>Fredius</i>(Crustacea: Decapoda: Pseudothelphusidae) and its significance to the biogeography of the Guianan lowlands of South America

Rodríguez, Gilberto; Campos, Martha R.

doi:10.1080/00222939800770391

Cited by 21 publications

(20 citation statements)

References 5 publications

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“…Hubert, Renno, 2006;Lima, Ribeiro, 2011). Similar conclusions were reached by authors working on other components of the Amazonian biota, such as plants (Cortés-B, Franco-R, 1997;Franco-Rosseli, Berg, 1997), other vertebrates (Cracraft, Prum, 1988;Eizirik et al, 1998;Marks et al, 2002) and arthropods (Grazia, 1997;Rodríguez, Campos, 1998;Camargo, Becker, 1999;Hall, Harvey, 2002;Morrone, 2002;Goldani, Carvalho, 2003;Nihei, de Carvalho, 2007). Basins adjacent to the Amazon, such as the Paraná-Paraguay, Essequibo and Orinoco share a large amount of taxa with the Amazon basin and even species whose closest relatives are Amazonian.…”

Section: Resultssupporting

confidence: 66%

Biogeography of Amazonian fishes: deconstructing river basins as biogeographic units

2017

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Biogeography of Amazonian fishes (2,500 species in vastly disjunct lineages) is complex and has so far been approached only partially. Here, we tackle the problem on the basis of the largest database yet on geographical distribution and phylogenetic relationships of Amazonian fishes, including all information available. Distributions of 4,095 species (both Amazonian and outgroups) and 84 phylogenetic hypotheses (comprising 549 phylogenetically-informative nodes) were compiled, qualified and plotted onto 46 areas (29 Amazonian and 17 non-Amazonian). The database was analyzed with PAE, CADE, BPA and BPA 0 , yielding largely congruent results and indicating that biogeographic signal is detectable on multiple dimensions of fish distribution, from single species ranges to cladistic congruence. Agreement is especially pronounced in deeper components, such as Trans-Andean, Cis-Andean, Western Amazon and Orinoco basins. Results show that all major Amazonian tributaries, as well as the Amazon basin itself, are non-monophyletic and constitute hybrid sets of heterogeneous biotic partitions. Amazonian drainages should not be assumed a priori as historically cohesive areas, contrary to widespread practice. Our hypothesis allows reevaluation of broader issues in historical biogeography, such as the predictive power of biogeographic hypotheses, the vicariant/ dispersal duality, the significance of widely distributed taxa, and the need for temporal dimension in biogeographic patterns. A biogeografia dos peixes amazônicos (2.500 espécies de diferentes linhagens) é complexa e até agora foi abordada apenas parcialmente. Aqui abordamos o problema com base no maior banco de dados já feito sobre a distribuição geográfica e as relações filogenéticas dos peixes amazônicos, incluindo todas as informações disponíveis. A distribuição de 4.095 espécies (tanto amazônicas como de grupos-externos) e 84 hipóteses filogenéticas (que incluíam 549 nós filogeneticamente informativos) foram compiladas e qualificadas em 46 áreas (29 amazônicas e 17 não-amazônicas). O banco de dados foi analisado a partir das metodologias PAE, CADE, BPA e BPA0, resultando em topologias amplamente congruentes e indicando que o sinal biogeográfico é detectável em múltiplas dimensões, desde a simples distribuição de peixes até em congruência cladística. A concordância topológica é especialmente pronunciada em componentes mais profundos, como as bacias Trans-Andina, Cis-Andina, Amazonas Ocidental e Orinoco. Os resultados demonstram que todos os principais afluentes amazônicos, bem como a própria bacia amazônica, não são monofiléticos e constituem conjuntos híbridos formados a partir de parcelas bióticas heterogêneas. As drenagens amazônicas não devem ser consideradas a priori como áreas historicamente coesas, contrariamente à prática generalizada. Nossa hipótese permite a reavaliação de questões mais amplas na biogeografia histórica, como o poder preditivo de hipóteses biogeográficas, a dualidade vicariante/dispersão, significância de táxons amplamente distribuídos e a n...

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Section: Resultssupporting

confidence: 66%

Biogeography of Amazonian fishes: deconstructing river basins as biogeographic units

2017

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“…A cladistic and biogeographic analysis of the genus Fredius (Rodríguez & Pereira 1992, Rodríguez & Campos 1998 indicated that much of the group's evolution occurred in the Guayana region, particularly in hypothetical major basins comprising the present Orinoco, Essequibo and Cuyuni River Basins. Widespread species, such as F. reflexifrons and F. denticulatus, would have evolved in the nearby area of the Atlantic Guianas and the Amazon Basin.…”

Section: Distribution Endemism and Rare Or Threatened Speciesmentioning

confidence: 99%

“…Palaemonidae: Holthuis (1951Holthuis ( , 1952Holthuis ( , 1959, Kensley & Walker (1982), López & Pereira (1996), Pereira (1985Pereira ( , 1986, Rodríguez (1980Rodríguez ( , 1982b, Tiefenbacher (1978), Melo (2003b). Pseudothelphusidae: Holthuis (1959), , Rodríguez (1980Rodríguez ( , 1982a, Pretzmann (1972), Rodríguez & Campos (1998), Rodríguez & Pereira (1992), Rodríguez & Suárez (1994), Magalhães & Rodríguez (2002), Magalhães (2003a). Sergestidae: Holthuis (1959), Omori (1975), Melo (2003b).…”

Section: Status Of Knowledge Of Freshwater Decapod Crustaceansmentioning

confidence: 99%

“…Concerning the Brazilian portion of the region, one can mention the papers of Magalhães ( , 1990, Magalhães & Rodríguez (2002), and Magalhães et al (2005) on the Brazilian pseudothelphusid crabs, Kensley & Walker (1982) and Pimentel (2003) on some Amazonian palaemonid shrimps, as well as the manual of identification of the Brazilian freshwater decapod crustaceans (Melo 2003a). The records for Colombia were done by Campos (1997) and Rodríguez & Campos (1998) for pseudothelphusid crabs. The composition and distribution of the Venezuelan Guayana decapod fauna is better known: the freshwater shrimps were treated by Rodríguez (1982b), Pereira (1985Pereira ( , 1986Pereira ( , 1991, and Pereira et al (1996); the pseudothelphusid crabs were studied by Rodríguez (1966), Rodríguez & Pereira (1992), Rodríguez & Suárez (1994), and Rodríguez & Campos (1998).…”

Section: Status Of Knowledge Of Freshwater Decapod Crustaceansmentioning

confidence: 99%

“…The records for Colombia were done by Campos (1997) and Rodríguez & Campos (1998) for pseudothelphusid crabs. The composition and distribution of the Venezuelan Guayana decapod fauna is better known: the freshwater shrimps were treated by Rodríguez (1982b), Pereira (1985Pereira ( , 1986Pereira ( , 1991, and Pereira et al (1996); the pseudothelphusid crabs were studied by Rodríguez (1966), Rodríguez & Pereira (1992), Rodríguez & Suárez (1994), and Rodríguez & Campos (1998). There are other contributions mentioning material from French Guiana (Miers 1877), Guyana (De Man 1900, Gordon 1935, Coifmann 1939 and Suriname (Holthuis 1993).…”

Section: Status Of Knowledge Of Freshwater Decapod Crustaceansmentioning

confidence: 99%

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Assessment of the decapod crustacean diversity in the Guayana Shield region aiming at conservation decisions

Magalhães

Pereira

2007

Biota Neotrop.

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Magalhães C. & Pereira, G. Assessment of the decapod crustacean diversity in the Guayana Shield region aiming at conservation decisions. Biota Neotrop. May/Aug 2007 vol. 7, no. 2. http://www.biotaneotropica.org. br/v7n2/pt/abstract?article+bn02007022007. ISSN 1676-0603.The current state of knowledge of freshwater decapod crustacean diversity of the Guayana Shield Region is briefly assessed, based upon information gathered from the scientific literature as well as unpublished data from academic theses, technical reports, and carcinological collections. The decapod fauna of the region is presently known to include 64 species and subspecies within six families and 17 genera. Diversity by countries, basins, and rivers is listed, comments on endemic, rare or threatened species are made, and information about relevant taxonomic literature is presented. Seven priority areas for conservation actions concerning crustacean decapods are suggested and related to the 25 priority areas defined by the Fishes and Freshwater Working Group at the Guayana Shield Conservation Priority Setting Workshop, held at Paramaribo (Suriname) in April 2002.

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Genetic diversity and population structure in the endangered giant otter, Pteronura brasiliensis

et al. 2011

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We assessed levels of genetic diversity and investigated patterns of population structure in three remnant populations of the endangered giant otter, Pteronura brasiliensis, using microsatellite loci. All populations displayed moderate to low levels of heterozygosity and allelic richness (H O 0.56-0.57, A R 4.00-5.15) and effective population sizes were low (N E 10.8-54) although only the Iténez population exhibited the signature of a genetic bottleneck. Population structure analyses revealed a pattern in which the populations of the Upper Amazon, Orinoco and Essequibo drainages comprised partially differentiated segments of a northern South American metapopulation, whereas the population of the Iténez appeared isolated. The observed patterns are congruent with previous mitochondrial DNA analysis which suggested the Iténez and northern South American groups constitute two evolutionary significant units. The results presented here should be considered in planning future policies aiming to manage the recovery of the giant otter across its range.

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A cladistic revision of the genusFredius(Crustacea: Decapoda: Pseudothelphusidae) and its significance to the biogeography of the Guianan lowlands of South America

Cited by 21 publications

References 5 publications

Biogeography of Amazonian fishes: deconstructing river basins as biogeographic units

Biogeography of Amazonian fishes: deconstructing river basins as biogeographic units

Assessment of the decapod crustacean diversity in the Guayana Shield region aiming at conservation decisions

Genetic diversity and population structure in the endangered giant otter, Pteronura brasiliensis

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