Insect interactions with Zaluzianskya natalensis and Z. microsiphon
Steve Johnson University of Natal School of Botany and Zoology Scottsville Pietermaritzburg South Africa,Mark Mort Iniversity of Kansas DEPT OF EEB MUS OF NAT HIST & BIODIV Lawrence Kansas 66045 USA
ethological isolation, flowering time, hybridization, ISSR, PCA, Scrophulariaceae, Zaluzianskya
BSA Plant Images Online - Insect interactions with Zaluzianskya natalensis and Z. microsiphon
A hawk moth (Basiothia schenki, Sphingidae) visiting the night-flowering Zaluzianskya natalensis (Scrophulariaceae; upper left) and a long-proboscid fly (Prosoeca ganglbauri, Nemestrinidae) visiting the day-flowering Z. microsiphon (lower right). These two plant species occur sympatrically on Mt. Gilboa, South Africa. Morphological and inter-simple sequence repeat (ISSR) data support the hypothesis that gene flow is occurring between these species despite their apparent ethological isolation.