Speculation but no data: A response to Hoagstrom's drift versus retention perspective

Hoagstrom has challenged the interpretations of Wilde and Urbanczyk on the basis of their citation of an existing hypothesis, which suggests that ova and larvae of Great Plains pelagic-broadcast spawning cyprinids require current for success recruitment. Hoagstrom characterizes the hypothesis as speculative and without empirical support, but his particular objections to the hypothesis are limited, at best. Hoagstrom advances his own speculative hypothesis, one that is without empirical support, to replace the existing hypothesis, committing the same lapse with which he finds fault