Benefits, challenges and opportunities of integrated crop-livestock systems and their potential application in the high rainfall zone of southern Australia: A review

•There are four major types of integrated crop-livestock (ICL) systems in Australia.•Benefits of integrated crop-livestock systems are broad and comprehensive.•Challenges to implement ICL systems depend on management goals and specific regions.•There are a range of pasture legumes that have potential for use in ICL systems.•Gaps and opportunities have been identified to use ICL systems.