Results 251 to 260 of about 43,736 (288)
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Sex chromosome polymorphism in guppies
Chromosoma, 2014Sex chromosomes differ from autosomes by dissimilar gene content and, at a more advanced stage of their evolution, also in structure and size. This is driven by the divergence of the Y or W from their counterparts, X and Z, due to reduced recombination and the resulting degeneration as well as the accumulation of sex-specific and sexually antagonistic ...
Nanda, I. +6 more
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Familiarity breeds contempt in guppies
Nature, 1999Male guppy fish increase their reproductive success by mating with unfamiliar females. When President Coolidge famously attributed the sexual ardour of roosters on a government farm to a steady stream of new hens1, he identified a strategy whereby males increase their reproductive success.
J L, Kelley, J A, Graves, A E, Magurran
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2022
† Triforis guttata Guppy, 1867 Triforis guttata Guppy, 1867: 170. Triphora guttata Guppy, 1867 — Rolán & Fernández-Garcés 2007: 15. Type locality. Trinidad and Tobago, Matura. Type stratum. Pliocene. Type material. Type material not located so far. Distribution. Trinidad and Tobago (Guppy 1867; Guppy 1874). Geological age.
Bakker, Piet A. J., Albano, Paolo G.
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† Triforis guttata Guppy, 1867 Triforis guttata Guppy, 1867: 170. Triphora guttata Guppy, 1867 — Rolán & Fernández-Garcés 2007: 15. Type locality. Trinidad and Tobago, Matura. Type stratum. Pliocene. Type material. Type material not located so far. Distribution. Trinidad and Tobago (Guppy 1867; Guppy 1874). Geological age.
Bakker, Piet A. J., Albano, Paolo G.
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Letters in Applied Microbiology, 2018
Despite the significant development on their diagnoses and control, aeromonad infection is still a problem in aquaculture. This study described the key bacteriological and pathogenic features of a presumptive Aeromonas sp.
C. Lazado, D. Zilberg
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Despite the significant development on their diagnoses and control, aeromonad infection is still a problem in aquaculture. This study described the key bacteriological and pathogenic features of a presumptive Aeromonas sp.
C. Lazado, D. Zilberg
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Gene flow in Trinidadian guppies
Journal of Fish Biology, 2000In 1957, guppies Poecilia reticulata from the Caroni drainage were introduced into habitat suitable for (but devoid of) guppies upstream of a waterfall in the Turure River of the Oropuche drainage. Previous allozyme studies, describing gene flow due to both sexes, showed that guppies downstream of the waterfall barrier represent an admixture of native ...
S. A. Becher, A. E. Magurran
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Science, 2012
A tiny fish is showing how ecological and evolutionary forces interact to shape the world we live in.
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A tiny fish is showing how ecological and evolutionary forces interact to shape the world we live in.
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Journal of Business Strategy, 1995
There's nothing that gets a magazine editor's heart racing as quickly as a trend. Even on a bimonthly, where breaking news is rarely an issue, finding a trend to hone in on is not just a perk of the job—it is the job.
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There's nothing that gets a magazine editor's heart racing as quickly as a trend. Even on a bimonthly, where breaking news is rarely an issue, finding a trend to hone in on is not just a perk of the job—it is the job.
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Trends in Ecology & Evolution, 2006
The ‘birth’ of guppies Poecilia reticulata as a paradigm of evolutionary biology was in the Arima Valley of Trinidad, where Caryl Haskins first described the simple gradient of fish communities found in the ascent up the drainages of the Northern Range Mountains and its consequence for guppies.
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The ‘birth’ of guppies Poecilia reticulata as a paradigm of evolutionary biology was in the Arima Valley of Trinidad, where Caryl Haskins first described the simple gradient of fish communities found in the ascent up the drainages of the Northern Range Mountains and its consequence for guppies.
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American Midland Naturalist, 1959
Populations of aquatic organisms appear to be self-limiting (Rose, 1957, 1959, 1960). Breder and Coates (1932) have shown for the guppy, Lebistes reticulatus, that 5.5-liter aquaria would support 9 adult fish. This was their final number whether they started with one or 50.
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Populations of aquatic organisms appear to be self-limiting (Rose, 1957, 1959, 1960). Breder and Coates (1932) have shown for the guppy, Lebistes reticulatus, that 5.5-liter aquaria would support 9 adult fish. This was their final number whether they started with one or 50.
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Nature, 2007
A Singapore agency has been recruiting and raising young scientists to swim with the 'whales'.
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A Singapore agency has been recruiting and raising young scientists to swim with the 'whales'.
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