New records of Fredius denticulatus (H. Milne-Edwards, 1853) and F. reflexifrons (Ortmann, 1897), and the eastern limits of the distribution of pseudothelphusid crabs (Crustacea: Decapoda) in Brazil

Magalhães, Célio; Abrunhosa, Fernando Araújo; Pereira, Milena de Oliveira; Melo, Marlon Aguiar

doi:10.1590/s0044-59672005000100014

Cited by 15 publications

(12 citation statements)

References 4 publications

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“…É possível que áreas como Baturité e Maranguape possuam uma influência mais forte da Mata Atlântica na sua biota, enquanto Ubajara, na Ibiapaba (a mata úmida mais a oeste do Ceará e que cresce em terrenos sedimentares) tenha uma influência amazônica mais forte. Algumas espécies da flora Amazônica co-ocorrem na serra da Ibiapaba como Catasetum planiceps e Buchenavia grandis, além de elementos faunísticos, como o caranguejo amazônico Fredius reflexifrons (Magalhães et al 2005).…”

Section: Mata úMida Do Cristalino E Mata úMida Do Sedimentarunclassified

Vegetação, unidades fitoecológicas e diversidade paisagística do estado do Ceará

et al. 2015

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ResumoEsse artigo apresenta uma revisão dos tipos vegetacionais do estado do Ceará a partir de sua diversidade paisagística, centrando-se, notadamente, nas condições climáticas e unidades geomorfológicas. Com base em levantamentos de campo, literatura especializada e mapas das unidades fitoecológicas e geomorfológicas, pretendemos expor, de forma didática, a caracterização, distribuição e principais ameaças antrópicas concernentes a cada vegetação. Por fim, utilizamos métodos de análise multivariada para comparar a similaridade de espécies entre os diferentes levantamentos florísticos disponíveis para o estado e discutimos os padrões biogeográficos observados.

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Section: Mata úMida Do Cristalino E Mata úMida Do Sedimentarunclassified

Vegetação, unidades fitoecológicas e diversidade paisagística do estado do Ceará

et al. 2015

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“…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.…”

Section: Status Of Knowledge Of Freshwater Decapod Crustaceansmentioning

confidence: 99%

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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“…Streams (igarapés) and along river margins 70 to 400 Rodríguez & Pereira, 1992;Rodriguez & Campos, 1998;Magalhães et al, 2005;Magalhães, 2009;Cumberlidge, Alvarez & Villalobos, 2014;Magalhães et al, 2014 F. estevisi Rodríguez, 1966 Brazil, Venezuela (Amazon and Atlantic rivers basins)…”

Section: Zoogeographical Notesmentioning

confidence: 99%

“…Lowland streams 37 to 200 Magalhães & Rodríguez, 2002;Magalhães et al, 2005 & Campos, 1998;Magalhães & Pereira, 2007;Cumberlidge, Alvarez & Villalobos, 2014;Magalhães et al, 2014;Zanetti, Castro & Magalhães, 2018 Magalhães et al (2014) performed a distance analysis based on 16S rRNA, in which F. reflexifrons was recovered as the sister taxa to (F. fittkauii (F. denticulatus (F. granulatus (F. buritizatilis (F. platyacanthus (F. denticulatus (F. stenolobus))))))). The discovery of F. ibiapaba n. sp.…”

Section: Zoogeographical Notesmentioning

confidence: 99%

A new species of freshwater crab genusFrediusPretzmann, 1967 (Crustacea: Brachyura: Pseudothelphusidae) from a naturally isolated orographic forest enclave within the semiarid Caatinga in Ceará, northeastern Brazil

Santos

Tavares

Silva

et al. 2020

PeerJ

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A new species of freshwater crab, Fredius ibiapaba, is described and illustrated from a mid-altitude forested patch in Ipú (Ibiapaba plateau, Ceará, northeastern Brazil), between 635 to 782 m. The new species can be separated from its congeners by the morphology of its first gonopod: proximal half remarkably swollen, sloping abruptly downwards distally to a nearly right-angular shoulder; mesial lobe much smaller than cephalic spine; cephalic lobe moderately developed; auxiliary lobe lip, delimiting field of apical spines, protruded all the way to distal margin of auxiliary lobe. Comparative 16S rDNA sequencing used to infer the phylogenetic placement of Fredius ibiapaba n. sp. revealed that it is the sister taxon of F. reflexifrons, a species which occurs allopatrically in the Amazon and Atlantic basin’s lowlands (<100 m). Fredius ibiapaba n. sp. and F. reflexifrons are highly dependent upon humidity and most probably were once part of an ancestral population living in a wide humid territory. Shrinking humid forests during several dry periods of the Tertiary and Quaternary likely have resulted in the fragmentation of the ancestral humid area and hence of the ancestral crab population. Fredius reflexifrons evolved and spread in a lowland, humid river basin (Amazon and Atlantic basins), whilst F. ibiapaba n. sp. evolved isolated on the top of a humid plateau. The two species are now separated by a vast intervening area occupied by the semiarid Caatinga

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New records of Fredius denticulatus (H. Milne-Edwards, 1853) and F. reflexifrons (Ortmann, 1897), and the eastern limits of the distribution of pseudothelphusid crabs (Crustacea: Decapoda) in Brazil

Cited by 15 publications

References 4 publications

Vegetação, unidades fitoecológicas e diversidade paisagística do estado do Ceará

Vegetação, unidades fitoecológicas e diversidade paisagística do estado do Ceará

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

A new species of freshwater crab genusFrediusPretzmann, 1967 (Crustacea: Brachyura: Pseudothelphusidae) from a naturally isolated orographic forest enclave within the semiarid Caatinga in Ceará, northeastern Brazil

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