Additions to Mexican freshwater copepods with the description of the female Leptodiaptomus mexicanus (Marsh)

Grimaldo-Ortega, Diana; Elías‐Gutiérrez, Manuel; Camacho-Lemus, Marina; Ciros‐Pérez, Jorge

doi:10.1016/s0924-7963(97)00069-9

Cited by 23 publications

(26 citation statements)

References 7 publications

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“…Apparently, the area represented by Mexico and Central America was more strongly influenced by the Nearctic region, with only a weak penetration of the South American fauna. The increasing number of discoveries of apparently narrowly endemic diaptomid species as additional areas and habitat types are investigated (e.g., GRIMALDO-ORTEGA et al, 1998;ELÍAS-GUTIÉRREZ et al, 2001;SUÁREZ-MORALES and ELÍAS-GUTIÉRREZ, 2000) show that there could be many more diaptomid species with very restricted distributional ranges in this region.…”

Section: Resultsmentioning

confidence: 99%

Diversity and Distributional Patterns of Neotropical Freshwater Copepods (Calanoida: Diaptomidae)

Suárez‐Morales¹,

Reid

Elías‐Gutiérrez

2005

International Review of Hydrobiology

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The distributional patterns and diversity of the diaptomid calanoid copepods were analysed to assess the faunistic affinity of North and South America with respect to Mexico and Central America. In the Neotropical region, the most speciose genera of Diaptomidae are Leptodiaptomus and Mastigodiaptomus. The former genus is a Nearctic form, and Mastigodiaptomus is Neotropical. Based on the current distribution of their diversity, it is probable that these genera radiated into Mexico and Central America from North America and the insular Caribbean, respectively. Arctodiaptomus dorsalis is a primarily Palaearctic taxon, it is widely distributed between North and Central America. This species probably radiated in the Americas as a Tethyan derivate. Prionodiaptomus is the only member of the highly diverse South American diaptomid fauna that has expanded beyond the subcontinent. Despite the high diversity present in South America, its influence in Mexico and Central America appears to be weak; this is probably a consequence of the geologically recent union of the two main subcontinental landmasses. Mexico shares 33% of its species with NA, and no species are shared between NA and SA. For the Diaptomidae, the Nearctic influence is strongest in Mexico.

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Section: Resultsmentioning

confidence: 99%

Diversity and Distributional Patterns of Neotropical Freshwater Copepods (Calanoida: Diaptomidae)

Suárez‐Morales¹,

Reid

Elías‐Gutiérrez

2005

International Review of Hydrobiology

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“…Viewed collectively, it is clear that taxonomic knowledge of freshwater zooplankton is incomplete. Studies of their diversity in 'frontier' regions such as Mexico have revealed many new species since the early 90's, although only a small percentage of habitats has been surveyed (Elías-Gutiérrez 1995;Elías-Gutiérrez et al 1999;Elías-Gutiérrez et al 2006;Grimaldo-Ortega et al 1998;Suárez-Morales et al 2005). It seems unlikely that taxonomic knowledge can be advanced rapidly without the adoption of new methods because the few specialists that can discriminate microcrustaceans are flooded with material.…”

Section: Introductionmentioning

confidence: 99%

DNA barcodes for Cladocera and Copepoda from Mexico and Guatemala, highlights and new discoveries

Elías‐Gutiérrez

Martínez‐Jerónimo

Ivanova

et al. 2008

Zootaxa

104

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DNA barcoding, based on sequence diversity in the mitochondrial COI gene, has proven an excellent tool for identifying species in many animal groups. Here, we report the first barcode studies for freshwater zooplankton from Mexico and Guatemala and discuss the taxonomic and biological implications of this work. Our studies examined 61 species of Cladocera and 21 of Copepoda, about 40% of the known fauna in this region. Sequence divergences among conspecific individuals of cladocerans and copepods averaged 0.82% and 0.79%, respectively, while sequence divergences among congeneric taxa were on average 15-20 times as high. Barcodes were successful in discriminating all species in our study, but sequences for Mexican Daphnia exilis overlapped with those of D. spinulata from Argentina. Our barcode data revealed evidence of many species overlooked by current classification systems —for example, based on COI genotypes the Diapahanosoma birgei group appears to include 5 species, while Ceriodaphnia cf. rigaudi, Moina cf. micrura, Mastigodiaptomus albuquerquensis and Mastigodiaptomus reidae all include 2–3 taxa. The barcode results support recent taxonomic revisions, such as recognition of the genus Leberis, and the presence of several species in the D. birgei and Chydorus sphaericus complexes. The present results indicate that DNA barcoding will provide powerful new insights into both the incidence of cryptic species and a better understanding of zooplankton distributions, aiding evaluation of the factors influencing competitive outcomes, and the colonization of aquatic environments.

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“…This is the sixth record of species of Acanthocyclops in Mexico, after A. vernalis from states in northern and Central Mexico (Coahuila, Michoacán, Nuevo León, Tamaulipas, San Luis Potosí, Guerrero), A. robustus (Distrito Federal, Mexico, Nuevo León, Puebla, San Luis Potosí, and Aguascalientes), A. exilis (Aguascalientes? ), A. smithae REID and SUÁREZ-MORALES (Quintana Roo), and A. rebecae GHENNE, 2000 (LINDBERG, 1955;SUÁREZ-MORALES and REID, 1998;GRIMALDO-ORTEGA et al 1998;REID and SUÁREZ-MORALES, 1999;FIERS et al, 2000;DODSON and SILVA-BRIANO, 1996). Because of the conspicuous difference represented by the easily discernible character as is the number of antennular segments, it is improbable that records of either A. robustus or A. vernalis in Central and Northern Mexico could be confused with the new species.…”

Section: Discussionmentioning

confidence: 99%

A NewAcanthocyclopsKiefer, 1927 (Copepoda: Cyclopoida) from Central Mexico with Comments on the Distributionof the Genus in Middle America

Mercado

Suárez‐Morales

Silva-Briano

2006

Internat. Rev. Hydrobiol.

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A new species of Acanthocyclops KIEFER is described from central Mexico. It differs from its congeners by a combination of characters including mainly: 11-13 antennular segments, a spine formula of 3444 and modified setae on legs 2-4. The presence of a compound distal antennular segment is aberrant within the Cyclopoida. The new species seems to be related to Nearctic forms of the vernalis-robustus clade. Ancestors of this lineage probably reached central Mexico as a result of glaciation events and the new species is a remain of stranded postglacial populations; some of these forms were succesful in colonizing tropical lands. A key for the identification of the species of Acanthocyclops recorded in Mexico is included.

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Additions to Mexican freshwater copepods with the description of the female Leptodiaptomus mexicanus (Marsh)

Cited by 23 publications

References 7 publications

Diversity and Distributional Patterns of Neotropical Freshwater Copepods (Calanoida: Diaptomidae)

Diversity and Distributional Patterns of Neotropical Freshwater Copepods (Calanoida: Diaptomidae)

DNA barcodes for Cladocera and Copepoda from Mexico and Guatemala, highlights and new discoveries

A NewAcanthocyclopsKiefer, 1927 (Copepoda: Cyclopoida) from Central Mexico with Comments on the Distributionof the Genus in Middle America

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