Systematics of Gasterosteus aculeatus, with Particular Reference to Intergradation and Introgression along the Pacific Coast of North America: A Commentary on a Recent Contribution

Miller, Robert Rush; Hubbs, Carl L.

doi:10.2307/1441696

Cited by 78 publications

(56 citation statements)

References 13 publications

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“…We have given evidence elsewhere that this method yields random samples (Hagen and Gilbertson, 1972). The samples were taken between April and October of 1968, 1969 preserved in 10 per cent. formalin.…”

Section: Methodsmentioning

confidence: 99%

Selective predation and the intensity of selection acting upon the lateral plates of threespine sticklebacks

1973

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SUMMARYSticklebacks in Lakes Wapato and Chelan are far inland and highly isolated from other populations. They live about one year. Rainbow trout prey on sticklebacks most heavily during the winter, and this predation is random on males and females and on the three plate morphs. However, trout show strong selective predation on sticklebacks with respect to plate number. The selective advantage of seven plated sticklebacks under predation is highly significant and consistent over three years. The frequency of seven plated adults in Lake Wapato was 56 per cent, in 1968, but increased to 65 per cent, in 1969 and has since remained at about 62 per cent. This large increase coincides with the time interval when predation was heaviest and when selective predation favouring sevens was greatest. The heritabilities for number of plates and gill rakers are high, and so the values obtained for the increase in mean relative fitness show that natural selection is acting strongly on these traits. Predation acting on the variation in plate number and food specialisation acting on gill rakers are two of the major selective agents.

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Section: Methodsmentioning

confidence: 99%

Selective predation and the intensity of selection acting upon the lateral plates of threespine sticklebacks

1973

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“…SINCE the classic monographs of Bertin (1925) and Heuts (1 947a) the remarkable variability of the threespine stickleback (Gasterosteus aculeatus) has attracted attention, particularly the variability in number of lateral plates and gill rakers (Hubbs, 1929;Heuts, I 947a, b, 1956;Lindsey, 1962;Munzing, 1963;Hagen, 1967;Miller and Hubbs, 1969). Almost all the variation in sticklebacks has been attributed to hybridisation and introgression (Munzing, 1963;Miller and Hubbs, 1969), but Hagen (1967), Hagen and McPhail (1970), and Hagen and Gilbertson (1972) found that hybridisation is largely confined to narrow zones in some coastal streams in the Pacific Northwest, America.…”

Section: Introductionmentioning

confidence: 99%

“…Almost all the variation in sticklebacks has been attributed to hybridisation and introgression (Munzing, 1963;Miller and Hubbs, 1969), but Hagen (1967), Hagen and McPhail (1970), and Hagen and Gilbertson (1972) found that hybridisation is largely confined to narrow zones in some coastal streams in the Pacific Northwest, America. Apparently introgression does not occur in the area, or at most is of minor importance as a cause of variation.…”

Section: Introductionmentioning

confidence: 99%

Inheritance of numbers of lateral plates and gill rakers in Gasterosteus aculeatus

1973

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SUMMARYHeritabilities for lateral plates in Gasterosteus are 050 0043 at 210 C. and 083±0033 at 16° C. for Lake Wapato stocks, and 084±0039 at 21° C.for five other populations. The estimate for gill rakers from Lake Wapato is 058±0056 at 210 C. In general, the two sexes of offspring do not differ in heritabilities; maternal effects apparently are not present. There is evidence that the asymmetry of plates has a large genetic component. The heritability is estimated at 063 0I6. Sex ratio varies widely among laboratory-reared families and there is a significant excess of females in the field. No effects of temperature or density on sex ratio were found.

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“…Unfortunately, there is no record at Stanford to indicate if Rutter ever fi led 16 Fellow class members included Herbert Clark Hoover who would later become the 31st President of the United States (Lyons, 1964 (Miller and Hubbs, 1969;Minckley, 1973;Williams et al, 1989).…”

Section: Graduation and Further Studies 1895-1896mentioning

confidence: 99%

Cloudsley Louis Rutter (1867-1903): Pioneer Salmon Biologist and Resident Naturalist, Fisheries Steamer Albatross

Jennings¹

2015

MFR

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Systematics of Gasterosteus aculeatus, with Particular Reference to Intergradation and Introgression along the Pacific Coast of North America: A Commentary on a Recent Contribution

Cited by 78 publications

References 13 publications

Selective predation and the intensity of selection acting upon the lateral plates of threespine sticklebacks

Selective predation and the intensity of selection acting upon the lateral plates of threespine sticklebacks

Inheritance of numbers of lateral plates and gill rakers in Gasterosteus aculeatus

Cloudsley Louis Rutter (1867-1903): Pioneer Salmon Biologist and Resident Naturalist, Fisheries Steamer Albatross

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