Table 1

Published relationships between sperm phenotypic traits and swimming speed.

Taxon

Morphological variable

Correlation with speed

Study


Mammals

Total length

+

[4,8]

Red deer (Cervus elaphus hispanicus)

Head length

+

[9]

Midpiece length

-

Flagellum length

0

Total length

0

Zebra finch (Taeniopygia guttata)

Midpiece length

0

[43]

Flagellum length

0

Tail length

0

Cichlid fish (Telmatochromis vittatus)

Total length

0

[45]

Atlantic salmon (Salmo salar)

Head length

0

[46]

Flagellum length

0

Total length

0

Bluegill sunfish (Lepomis macrochirus)

Total length

0

[44,66]

Flagellum length

0

[42]

Guppy (Poecilia reticulata)

Head length

+

[10]

Flagellum length

0

Relative flagellum length

0

Grass goby (Zosterisessor ophiocephalus)

Tail length

0

[67]

Total length

0

Black goby (Gobius niger)

Tail length

0

[67]

Total length

0

Land snail (Arianta arbustorum)

Total length

0

[47]


Key: +, positive correlation between length and speed; -, negative correlation between length and speed; and 0, correlation analysis performed, but no relationship between length and speed found.

Humphries et al. BMC Evolutionary Biology 2008 8:319   doi:10.1186/1471-2148-8-319

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