How habitat loss and fragmentation are reducing conservation opportunities for vertebrates in the most threatened savanna of the World João Paulo S. Vieira-Alencar; Bruna E. Bolochio; Ana Paula Carmignotto; Ricardo J. Sawaya; Luís Fábio Silveira; Paula Hanna Valdujo; Cristiano de Campos Nogueira; Javier Nori;

Optimal references for ecological restoration: the need to protect references in the tropics Tiago Shizen Pacheco Toma; Gerhard Ernst Overbeck; Milton de Souza Mendonça; G.Wilson Fernandes;

Minimum costs to conserve 80% of the Brazilian Amazon José Maria Cardoso da Silva; Luís Claudio Fernandes Barbosa; Julie Topf; Ima Célia G. Vieira; Fabio R. Scarano;