scholarly journals Population Cage Experiments with a Vertebrate: The Temporal Demography and Cytonuclear Genetics of Hybridization in Gambusia Fishes

Evolution ◽  
1994 ◽  
Vol 48 (1) ◽  
pp. 155 ◽  
Author(s):  
Kim T. Scribner ◽  
John C. Avise
Keyword(s):  
Population Cage

scholarly journals CHANGING POPULATION STRUCTURE THROUGH THE USE OF COMPOUND CHROMOSOMES

Genetics ◽  
1972 ◽  
Vol 72 (1) ◽  
pp. 183-186
Author(s):  
D Childress
Keyword(s):  
Population Structure ◽  
Genetic Structure ◽  
Theoretical Calculations ◽  
Population Cage ◽  
Insect Populations

ABSTRACT Theoretical calculations and population cage data are presented to illustrate the use of compound chromosomes to change the genetic structure of insect populations.

scholarly journals Unidirectional incompatibility in Drosophila simulans: inheritance, geographic variation and fitness effects.

Genetics ◽  
1988 ◽  
Vol 119 (2) ◽  
pp. 435-444 ◽  
Author(s):  
A A Hoffmann ◽  
M Turelli
Keyword(s):  
Side Effects ◽  
North America ◽  
Reciprocal Cross ◽  
Low Frequency ◽  
Drosophila Simulans ◽  
Fitness Effects ◽  
Population Type ◽  
Population Cage ◽  
Males And Females ◽  
Population Controls

Abstract In California, Drosophila simulans females from some populations (type W) produce relatively few adult progeny when crossed to males from some other populations (type R), but the productivity of the reciprocal cross is comparable to within-population controls. These two incompatibility types are widespread in North America and are also present elsewhere. Both types sometimes occur in the same population. Type R females always produce type R progeny irrespective of the father's type. However, matings between R males and females from stocks classified as type W produce type R progeny at low frequency. This suggests rare paternal transmission of the R incompatibility type, as we have found no evidence for segregation of incompatibility types in the W stocks. There is quantitative variation among type R lines for compatibility with W females, but not vice versa. Population cage studies and productivity tests suggest that deleterious side effects are associated with the type R cytoplasm.

Roles of mating behavioural interactions and life history traits in the competition between alien and indigenous whiteflies

2012 ◽  
Vol 102 (4) ◽  
pp. 395-405 ◽  
Author(s):  
P. Wang ◽  
D.W. Crowder ◽  
S.-S. Liu
Keyword(s):  
Life History ◽  
Life History Traits ◽  
Interference Competition ◽  
Simulation Models ◽  
Simulation Modelling ◽  
Laboratory Population ◽  
Indigenous Species ◽  
Female Ratio ◽  
Population Cage ◽  
Q Biotype

AbstractInterference competition between closely related alien and indigenous species often influences the outcome of biological invasions. The whitefly Bemisia tabaci species complex contains ≥28 putative species and two of them, Mediterranean (MED, formally referred to as the ‘Q biotype’) and Middle East-Asia Minor 1 (MEAM1, formally referred to as the ‘B biotype’), have recently spread to much of the world. In many invaded regions, these species have displaced closely related indigenous whitefly species. In this study, we integrated laboratory population experiments, behavioural observations and simulation modelling to investigate the capacity of MED to displace Asia II 1 (AII1, formally referred to as the ‘ZHJ2 biotype’), an indigenous whitefly widely distributed in Asia. Our results show that intensive mating interactions occur between MED and AII1, leading to reduced fecundity and progeny female ratio in AII1, as well as an increase in progeny female ratio in MED. In turn, our population cage experiments demonstrated that MED has the capacity to displace AII1 in a few generations. Using simulation models, we then show that both asymmetric mating interactions and differences in life history traits between the two species contribute substantially to the process of displacement. These findings would help explain the displacement of AII1 by MED in the field and, together with earlier studies on mating interactions between other species of the B. tabaci complex, indicate the widespread significance of asymmetric mating interactions in whitefly species exclusions.

Gene flow in house mice: Behavior in a population cage

1981 ◽  
Vol 8 (2) ◽  
pp. 83-90 ◽  
Author(s):  
Ann Eileen Miller Baker
Keyword(s):  
Gene Flow ◽  
House Mice ◽  
Population Cage

scholarly journals Fitness of third chromosome homozygotes in Drosophila melanogaster

1975 ◽  
Vol 25 (2) ◽  
pp. 197-200 ◽  
Author(s):  
J. A. Sved
Keyword(s):  
Drosophila Melanogaster ◽  
Cage Experiment ◽  
Population Cage ◽  
Mean Fitness

SUMMARYA population cage experiment has been carried out to estimate fitness for a sample of fourteen non-lethal third chromosomes in D. melanogaster. This measurement, which should take into account all aspects of fitness, gives an estimated mean fitness of chromosome homozygotes of approximately ten percent.

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