Larvae of two species of sea urchins (Strongylocentrotus droebachiensis and S. purpuratus)
differ in initial form and in the rate of development. To determine whether these differences …

The evolution of egg size in marine invertebrates remains a topic of central importance for
life-history biologists, and the pioneering work of Vance has strongly influenced our current …

1. With the possible exception of inarticulate brachiopods, members of the oligomera
(brachiopods, ectoprocts, phoronids, hemichordates, echinoderms) do not reacquire a …

Many life‐history and developmental studies of marine invertebrates assume that eggs of
species with nonfeeding larvae are large because they provide materials for rapid …

Egg sizes of free-spawning invertebrates, fishes, amphibians, and reptiles can reflect an
evolutionary compromise between offspring size and number. One explanation for this …

Observations of a sea urchin larvae show that most species adopt one of two life history
strategies. One strategy is to make numerous small eggs, which develop into a larva with a …

The exchange between Underwood (1974) and Vance (1974) failed to clarify the
relationship between egg size and development time in benthic invertebrates because these …

Egg size is one of the most important aspects of the life history of free-spawning marine
organisms, and it is correlated with larval developmental mode and many other life-history …

Preexisting developmental plasticity in feeding larvae may contribute to the evolutionary
transition from development with a feeding larva to nonfeeding larval development …

Interspecific variation in egg size of marine invertebrates has been previously explained by
a trade-off between gamete quality and quantity: the production of many small eggs with …