NDLI: Variation in habitat preference and population structure among three species of the Lake Malawi cichlid genus Protomelas.

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Variation in habitat preference and population structure among three species of the Lake Malawi cichlid genus Protomelas.

Content Provider	Semantic Scholar
Author	Pereyra, Ricardo Taylor, Martin I. Turner, George F. Rico, Ciro
Copyright Year	2004
Abstract	Several studies have demonstrated strong population structuring over small distances in the rocky-shore mbuna cichlid fishes from Lake Malawi, suggesting the potential for allopatric speciation. However, many endemic Lake Malawi cichlids are neither mbuna, nor confined to rocky shores. Using microsatellites, we investigated the population structure in three species of the non-mbuna genus Protomelas. The rocky-shore P. taeniolatus showed high levels of population structure even over distances of less than 1 km, while the sandy-shore species P. similis showed no significant structure over distances up to 21 km. Protomelas fenestratus, which is generally found at the interface between rocks and sand, also showed low levels of population structure. Our results suggest that the model of allopatric speciation based on habitat fragmentation within the current lake basin may be equally applicable to rocky-shore non-mbuna as to mbuna, but that an alternative model is required to explain speciation among sandy-shore species as well as the deep-water and pelagic species.
Starting Page	446
Ending Page	448
Page Count	3
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://digital.csic.es/bitstream/10261/59622/1/molecular2004.pdf
Alternate Webpage(s)	http://mefgl.bangor.ac.uk/mefglpublications/pereryraetal2004.pdf
PubMed reference number	15315681v1
Volume Number	13
Issue Number	9
Journal	Molecular ecology
Language	English
Access Restriction	Open
Subject Keyword	Cichlids Distance Fishes Genus Less Than Protomelas fenestratus Short Tandem Repeat
Content Type	Text
Resource Type	Article

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