As coffee becomes one of the most important export crops in certain regions such as northern Latin America, nature and agriculture are transformed. Increased productivity requires technological innovations, and the coffee agroecosystem has been changing rapidly. In the nineteenth century in Latin America, coffee plantations slowly began replacing sugarcane and subsistence crops. Coffee crops became more managed; they were put into rows and unshaded, meaning diversity of the forest was decreased and Coffea trees were shorter. As plant and tree diversity decreased, so did animal diversity. Unshaded plantations allow for a higher density of Coffea trees, but negative effects include less protection from wind and more easily eroded soil. Technified coffee plantations also use chemicals such as fertilizers, insecticides, and fungicides.