|Other Retailer||Price Checked Time||Their Price in AUD||Our Price|
|Amazon UK||3 days ago||74.86||$51.95||You save $22.91|
|Amazon US||2 days ago||68.71||$51.95||You save $16.76|
|Book Depository US||2 days ago||58.45||$51.95||You save $6.50|
Victor Rico-Gray is a research scientist of ecology and chairman of the applied ecology department at the Instituto de Ecologia, A. C. in Xalapa, Veracruz, Mexico. Paulo S. Oliveira is professor of ecology at the Universidade Estadual de Campinas, Sao Paulo, Brazil.