What We Don't Recognize Can Hurt Us: A Plea for Awareness About Cryptic Species
An extensive literature review on studies that have used DNA sequences to detect cryptic species of parasites during the last decade found a lack of methodological and theoretical uniformity in the discipline for finding and delimiting cryptic species and recommended that parasitologists describe (and formally name) cryptic species following standard taxonomic practice.
Molecular prospecting for cryptic species in Phyllodistomum lacustri (Platyhelminthes, Gorgoderidae)
Molecular prospecting for cryptic species in Phyllodistomum lacustri (Platyhelminthes, Gorgoderidae) is reported for the first time in the journal Zoologica Scripta.
Parasite Inventories and DNA-based Taxonomy: Lessons from Helminths of Freshwater Fishes in a Megadiverse Country
It is suggested that future survey work aimed at enhancing the biodiversity inventory should be strategic, i.e., it should combine the need to target missing components of the host spectrum with the choice of appropriate drainages based on biogeographic, faunistic, and hydrologic data.
Phylogenetic analysis of nuclear and mitochondrial DNA reveals a complex of cryptic species in Crassicutis cichlasomae (Digenea: Apocreadiidae), a parasite of Middle-American cichlids.
Forecasting Climate Change Effects on Salamander Distribution in the Highlands of Central Mexico 1
A generalized decline of amphibian populations is occurring worldwide. The causes for such a decline are not completely understood; however, climate change has been identified as a possible cause for…
Using Ecological‐Niche Modeling as a Conservation Tool for Freshwater Species: Live‐Bearing Fishes in Central Mexico
- O. Domínguez‐Domínguez, E. Martínez‐Meyer, L. Zambrano, G. P. de León
- Environmental ScienceConservation Biology
- 1 December 2006
This work assessed the conservation status of the goodeines, a monophyletic group of viviparous freshwater fishes that are well known in central Mexico, based on their potential distributions predicted by ecological-niche models generated with the genetic algorithm for rule-set prediction (GARP).
The Phylogenetic Position of Allocreadiidae (Trematoda: Digenea) From Partial Sequences of the 18S and 28S Ribosomal RNA Genes
- A. Choudhury, R. Valdez, Ryan C. Johnson, B. Hoffmann, G. P. de León
- BiologyJournal of Parasitology
- 1 February 2007
The relationship of Allocreadiidae and Gorgoderidae is consistent with their larval development in bivalve, rather than gastropod, molluscs, and with their host relationships (predominantly freshwater vertebrates).
A New Species of Auriculostoma (Digenea: Allocreadiidae) in the Mexican Tetra Astyanax mexicanus (Actinopterygii: Characidae) from Central Veracruz, Mexico, Described with the Use of Morphological…
- U. Razo-Mendivil, B. Mendoza-Garfias, G. P. de León, M. Rubio-Godoy
- BiologyJournal of Parasitology
- 13 June 2014
The new species is set apart from all congeners by the combination of some morphological characters such as the testes position (oblique in most specimens), the ventral to oral sucker ratio (1:1.2 × 1:1), the cirrus sac originating at the ovarian region, and by having vitelline follicles not confluent in the posttesticular region.
Discordant Genetic Diversity and Geographic Patterns Between Crassicutis cichlasomae (Digenea: Apocreadiidae) and its Cichlid Host, “Cichlasoma” urophthalmus (Osteichthyes: Cichlidae), in…
The results show that species of cichlids parasitized by C. cichlasomae other than “C.
Integrating molecular and morphological approaches for characterizing parasite cryptic species: implications for parasitology
Tests show that careful attention to the theory and operational practices involved in finding, delimiting, and describing new species is essential for fully characterizing parasite biodiversity and broader aspects of comparative biology such as systematics, evolution, ecology and biogeography.