| 词条 | Poecilogony |
| 释义 |
The term poecilogony was coined by Alfred Mathieu Giard to describe a polymorphism in larval development in marine invertebrates. To date, this life history trait is only known in a small number of polychaete taxa,[1] as well as some sacoglossan mollusks. In some cases, the variation in larval type is a 'plastic' trait in that it is environmentally mediated. In other cases, the larval type is genetically determined - a good example is the polychaete Streblospio benedicti, where some mothers release small planktotrophic eggs and other mothers release large lecithotrophic eggs.[2] In either case, the variation in larval type generally involves the production of larvae that differ in feeding mode and/or developmental time. References1. ^{{cite web|url=http://www.asnailsodyssey.com/LEARNABOUT/TUBEWORM/tubePoec.php|website=A Snail's Odyssey|accessdate=8 June 2015|title=Learn About Tubeworms}} 2. ^{{cite journal|last1=Levin|first1=L. A.|title=Multiple patterns of development in Streblospio benedicti Webster (Spionidae) from three coasts of North America|journal=Biological Bulletin|date=1984|volume=166|pages=494–508}} 2 : Polymorphism (biology)|Larvae |
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