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- W2105922187 abstract "Our understanding of natural patterns of fertilization in seaweeds has increased substantially over the last 10 years due to new approaches and methods to characterize the nature and frequency of fertilization processes in situ , to recognize the conditions and mechanisms enhancing fertilization success, and to anticipate population and community consequences of the patterns of natural fertilization. Successful reproduction in many species depends on a delicate juxtaposition of abiotic and biotic conditions. Important abiotic factors are those triggering gamete release (e.g. single or interacting effects of light quality and water movement) and those affecting gamete viability or concentrations (e.g. salinity effects on polyspermy blocks; gamete dilution due to water movement). Examples of important biotic components are synchronous gamete release, efficiency of polyspermy‐blocking mechanisms, population density of sexually fertile thalli, interparent distances, and male‐to‐female ratios. Field data indicate fertilization frequencies of 70%–100% in broadcasting‐type seaweeds (e.g. fucoids) and 30%–80% in brooding‐type (red) algae. Red algal values are higher than previously thought and challenge presently accepted explanations for their complex life histories. Important population and community questions raised by the recent findings relate to the magnitude of gene flow and exchange occurring in many micropopulations that seemingly breed during periods of isolation, the physiological basis and population effects of male‐to‐male competition and sexual selection during fertilization of brooding seaweeds, and the effects of massive gamete release, especially in holocarpic seaweeds, on benthic and planktonic communities. Comparative studies in other algal groups are now needed to test the generality of the above patterns, to provide critical pieces of information still missing in our understanding of natural fertilization processes, and to elucidate the evolutionary consequences of the different modes of reproduction (e.g. brooders vs. broadcasters)." @default.
- W2105922187 created "2016-06-24" @default.
- W2105922187 creator A5015543689 @default.
- W2105922187 date "2002-02-01" @default.
- W2105922187 modified "2023-10-18" @default.
- W2105922187 title "RECENT ADVANCES IN FERTILIZATION ECOLOGY OF MACROALGAE1" @default.
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- W2105922187 doi "https://doi.org/10.1046/j.1529-8817.2002.00193.x" @default.
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