Frequency-dependent survival in natural guppy populations
Article Abstract:
The frequencies of male guppies with different color patterns in three natural populations are manipulated to estimate survival rates and it is found that rare phenotypes had a highly significant survival advantage compared to common phenotypes. The evidence from humans and other species have implicated frequency-dependent survival in the maintenance of molecular, morphological and health-related polymorphisms and the results have provided an unequivocal support for frequency-dependent survival, an evolutionary process capable of maintaining extreme polymorphism.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2006
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The games lizards play
Article Abstract:
The side-blotched lizard, Uta stansburiana, shows a selective population cycle which adheres to the theory of evolutionarily stable strategy (ESS). ESS proposes that a reproduction strategy is stable because any other strategy can not overcome the population, if majority of the members of the population uses that strategy. Three populations of the lizards move up and down in predominance based on three separate reproduction strategies which succeed each other cyclically.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1996
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A robust view of biochemical pathways
Article Abstract:
Biochemical pathways are made up of cooperating groups of proteins that transmit signals. Research into the chemotaxis pathway of bacteria suggests that they are constructed to remain unaffected by the types of variations that occur in natural polymorphisms and are insensitive to fine-tuning. The concept of robustness may lead to new research into genetic diversity.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1997
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