Written in English
|The Physical Object|
|Number of Pages||172|
Cambridge Core - Evolutionary Biology - Evolution and Development of Fishes - edited by Zerina JohansonMissing: parental investment. Barlow () reformulated Wickler's () statement on the phylogeny of parental care in fishes and concluded that 'the evolutionary pro- gression has been from (1) an exclusively parental male, to (2) shared parental care by the male and the female, to (3) a division of roles with the female as direct parent and the male as guardian, to (4) polygyny'.Cited by: Annual Fishes: Life History Strategy, Diversity, and Evolution is the first comprehensive reference on current knowledge of diverse species that exhibit unique survival strategies and provide important models for basic and applied research. This work fills a void, covering the life cycle, reproductive biology, evolutionary ecology, reproductive behCited by: PARENTAL INVESTMENT Parents invest in offspring indirectly and directly (Qvarnström & Price, ). In- direct investment is genetic inheritance, although the quality of this investment (e.g., as it effects growth rate) often varies from one parent to the next (Savalli & Fox, ).
Parental investment evolved independently in different lineages. However, the evolution of investment within lineages is debated, and patterns of parental investment are likely specific to species and life-history strategies (Klug et al. ). Parental investment may evolve when individuals have a reduced capacity to reproduce in future. Introduction: tactics and strategies in fish reproduction; Plasticity for age and size at sexual maturity: a life-history response to unavoidable stress; Patterns in the evolution of reproductive styles in fishes; Sunfish, salmon, and the evolution of alternative reproductive strategies and tactics in fishes; Genetics of sex determination in fishes - a brief review; Progenetic tendencies in. Parental care is present in a large number of fish species (up to ), and basically all possible f orms o f parental care hav e been reported in fish. Matrotrophic viviparity is the mos t. parental investment is costly for the parents and that the genetic relatedness of a child to either of the parents is 50 %, the ideal resource allocationMissing: fishes.
ISBN: OCLC Number: Description: xviii, pages: illustrations ; 24 cm: Contents: Tetraploidy and the evolution of salmonid fishes / Fred W. Allendorf and Gary H. Thorgaard --Tetraploidy and the evolution of the catostomid fishes / Stephen D. Ferris --A new look at sex determination in poeciliid fishes / Klaus D. Kallman --Gene mapping in fishes and other Missing: parental investment. For 30 years, the most widely accepted hypothesis for the evolution of parental care in fishes has been a step- ping-stone model in which care evolved from an ancestral state of no care to biparental care via two intermediate stages of female-only and male-only care (Figure 2(a)). Evolution of Fish Ostracoderms: The first fishes, and indeed the first vertebrates, were the ostracoderms, jawless fishes found mainly in fresh water. They were covered with a bony armor or scales and were often less than 30 cm (1 ft) g: parental investment. Parental care is a behavioural and evolutionary strategy adopted by some animals, involving a parental investment being made to the evolutionary fitness of offspring. Patterns of parental care are widespread and highly diverse across the animal kingdom. There is great variation in different animal groups in terms of how parents care for offspring, and the amount of resources invested by parents.