Effects of reproductive resource allocation and pollen density on fertilization success in plants
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Tactics for male reproductive success in plants: contrasting insights of sex allocation theory and pollen presentation theory.
The basic tenet of sex allocation theory is that an organism's reproductive success, through either male or female function, can be represented as a sex-specific, monotonic, increasing function of the organism's investment of resources in that function. The shapes of these curves determine what patterns of resource allocation can be evolutionarily stable. Although SA theory has stimulated creat...
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Sperm competition does not occur in flowering plants as typically only a single pair of sperm cells is delivered for double fertilization. Two recent reports show that plants are capable of avoiding reproductive failure when defective sperm cells are released.
متن کاملLifetime reproductive success and density-dependent, multi-variable resource selection.
Individuals are predicted to maximize lifetime reproductive success (LRS) through selective use of resources; however, a wide range of ecological and social processes may prevent individuals from always using the highest-quality resources available. Resource selection functions (RSFs) estimate the relative amount of time an individual spends using a resource as a function of the proportional av...
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ژورنال
عنوان ژورنال: BMC Ecology
سال: 2020
ISSN: 1472-6785
DOI: 10.1186/s12898-020-00290-x