in species area relationship, what does the steeper slope (Z) mean??? does that mean species richness?? Share with your friends Share 1 Jahirul Mazumder answered this Please refer the link below: https://www.meritnation.com/ask-answer/question/please-explain-the-graph-of-species-area-relationship-what/biodiversity-and-conservation/6964838 2 View Full Answer Katyuri Pant answered this it means slope of line.;S means species richness -1