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Integrative taxonomy of the Felimare californiensis and F. ghiselini species complex (Nudibranchia: Chromodorididae), with description of a new species from Peru
- Publication Year :
- 2017
- Publisher :
- Oxford University Press, 2017.
-
Abstract
- A combination of molecular, biogeographic and morphological data indicates that the eastern Pacific species Felimare ghiselini is a synonym of F. californiensis, also recorded from this region. However, a disjunct population from Peru, previously considered to be F. ghiselini, represents a distinct species, formally described herein as F. sechurana. Although previous work recognized that F. californiensis had a disjunct range with populations on the Pacific coast of North America and in the Gulf of California, the synonymization with F. ghiselini extends the range of this species into the southern part of the Gulf of California and also to Clipperton Island. Consequently, F. californiensis can now be stated to be common in the southern Gulf of California, minimizing concerns about the conservation status of this species. A latitudinal gradient in morphology is discussed. Speciation between F. californiensis and F. sechurana is hypothesized to be the result of dispersal of members of an ancestral population across the tropical eastern Pacific during the repeated periods of glaciation during the Pleistocene, followed by isolation. These results are consistent with a pattern of antitropical speciation that may have shaped biodiversity patterns across the eastern Pacific Ocean.
- Subjects :
- 0106 biological sciences
0301 basic medicine
Species complex
eastern pacific
Tropical Eastern Pacific
Population
purl.org/pe-repo/ocde/ford#4.01.08 [https]
Aquatic Science
Disjunct
purl.org/pe-repo/ocde/ford#4.02.00 [https]
010603 evolutionary biology
01 natural sciences
Felimare californiensis
diversity
03 medical and health sciences
Marine & Freshwater Biology
outer coast
education
heterobranchia
education.field_of_study
biology
Ecology
phylogenetic analysis
delimitation
biology.organism_classification
populations
030104 developmental biology
Chromodorididae
gastropoda
Biological dispersal
Conservation status
Animal Science and Zoology
genus hypselodoris
gulf-of-california
Zoology
mollusca
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....98d56e4291bf6001aff7fa534581b503