Term
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Definition
| The slope of relationship of phentype values and fitness |
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Term
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Definition
| Genotype has capacity to produce several phenotypes |
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Term
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Definition
| Breed at different times of year |
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Term
| Transactional model of reproductive skew |
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Definition
| Dominant individuals gain assistance from subordinate helpers and pay them by allowing them to reproduce just a bit more than if they left the group |
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Term
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Definition
| average per capita rate of population increase |
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Term
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Definition
| evolutionary history may not give you variation |
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Term
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Definition
| Female preference may evolve before preferrred male trait |
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Term
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Definition
| Characteristic co-opted to serve another function |
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Term
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Definition
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Term
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Definition
| Splitting a large population into two or more |
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Term
| Example of heterzygote advantage |
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Definition
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Term
| Phenotypic variance due to |
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Definition
| combination of phenotypic and environmental variance |
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Term
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Definition
| specific mate recognition systems-signals and responses of potential mates |
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Term
| Postmating-Prezygotic barriers |
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Definition
| Mating occurs but fertilization doesn't |
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Term
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Definition
| Genitalia might not match which stops male gametes from transferring |
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Term
| Copulatory behavioral isolation |
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Definition
| fertilization fales because of behavior during mating or genitali stimulated improperly |
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Term
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Definition
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Term
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Definition
| Hybrid fitness depends on context |
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Term
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Definition
| Hybrids don't have a niche |
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Term
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Definition
| hybrids less successful in obtaining mates |
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Term
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Definition
| Hybrid fitness always low |
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Term
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Definition
| hybrids often don't survive |
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Term
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Definition
| Structural difference in chromosomes can cause aneuploidy in meiosis |
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Term
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Definition
| Sterility may be limited to heterogametic sex |
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Term
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Definition
| Genetic drift will eventually result in coalescence to different haplotypes in species lineage sorting |
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Term
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Definition
| Area where two species come together and some individuals are of mixed ancestry |
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Term
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Definition
| some kind of barrier develops that splits a population |
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Term
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Definition
| splits large population in two or more |
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Term
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Definition
| peripheral isolate diverges |
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Term
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Definition
| neighboring populations that have little gene flow become reproductively isolated |
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Term
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Definition
| reproductive isolation evolves in single, randomly mating population |
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Term
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Definition
| Most likely form of speciation |
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Term
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Definition
| More than two complements of chromosomes |
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Term
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Definition
| polyploids would be instantly isolated from others |
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Term
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Definition
| reproduce one and then die |
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Term
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Definition
| Reproductive success= probability of survivle to reproductive age * average number of offspring per survivor |
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Term
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Definition
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Term
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Definition
| probability of survive to year X |
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Term
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Definition
| Reproductive success= probability of surviving to year x * number of offspring per survivor |
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Term
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Definition
| Evolutionary history may not give you variation |
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Term
| Physiological or genetic constraints |
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Definition
| Increase in fecundity may effect other traits |
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Term
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Definition
| having separate sexes defined by size of their gametes |
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Term
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Definition
| usually different mating types |
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Term
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Definition
| Repair damaged DNA, Sampling comepetition, Adaptations to fluctuating environments |
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Term
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Definition
| advantageous to be constant regardless of environment |
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Term
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Definition
| characteristic that fortuitously serves a new function |
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Term
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Definition
| characterisitc co-opted to serve new function |
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Term
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Definition
| One extreme phenotype preferred |
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Term
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Definition
| Middle phenotypes selected |
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Term
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Definition
| Extreme phenotypes selected |
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