Weiss, Ronja and Anger, Klaus and Hayd, Liliam and Schubart, Christoph D. (2015) INTERPRETING GENETIC DISTANCES FOR SPECIES RECOGNITION: THE CASE OF MACROBRACHIUM AMAZONICUM HELLER, 1862 AND THE RECENTLY DESCRIBED M. PANTANALENSE DOS SANTOS, HAYD & ANGER, 2013 (DECAPODA, PALAEMONIDAE) FROM BRAZILIAN FRESH WATERS. CRUSTACEANA, 88 (10-11). pp. 1111-1126. ISSN 0011-216X, 1568-5403
Full text not available from this repository. (Request a copy)Abstract
The river prawn Macrobrachium amazonicum Heller, 1862 occurs in limnic and brackish habitats in northeastern South America, with a broad distribution range and a wide phenotypic variability. Recently, representatives of populations from the Pantanal were reassigned to the newly described species M. pantanalense Dos Santos, Hayd & Anger, 2013, according to distinct morphology, life-history, and geographic distribution. Genetic distinctness is in a range that may be recognized as either inter- or intraspecific, which raises the question to what extent genetic distance data alone should be used to determine whether two closely related populations belong to the same or different species. Here, we discuss the case of M. amazonicum and compare it with other cases of conflicting conclusions from studies on decapod crustaceans, mainly using morphological or genetic criteria. Based on these comparisons, we caution against a too simiplistic view of genetic distance as an exclusive criterion for the definition of "species" vs. "conspecific populations".
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | DNA BARCODES; BIOLOGICAL IDENTIFICATIONS; MOLECULAR PHYLOGENY; MENIPPE-MERCENARIA; CRUSTACEA DECAPODA; MARINE INCURSIONS; MTDNA SEQUENCES; STONE CRABS; RIVER PRAWN; SPENCE BATE; |
| Subjects: | 500 Science > 590 Zoological sciences |
| Divisions: | Biology, Preclinical Medicine > Institut für Zoologie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 26 Jul 2019 09:25 |
| Last Modified: | 26 Jul 2019 09:25 |
| URI: | https://pred.uni-regensburg.de/id/eprint/6143 |
Actions (login required)
 |
View Item |
