title: Feeding habits of the leaf litter frog Haddadus binotatus (Anura, Craugastoridae) from two Atlantic Forest areas in southeastern Brazil.
abstract: Haddadus binotatus is an endemic anuran of the Brazilian Atlantic Forest and currently, there is no information about the diet of this species. We analyzed the diet of two populations of this anuran in two states in southeast Brazil. Samplings were carried out in 2004 in the state of Rio de Janeiro and in 2009 and 2010 in the state of Espírito Santo. Haddadus binotatus presented a rich diet composition, preying 19 prey types. Orthoptera, Coleoptera, and Blattodea were the most important preys in the Rio de Janeiro population, and Orthoptera, Araneae and Hemiptera were the most important in the Espírito Santo population. The diet composition differed numerically between the two localities, but not in terms of volume, which can reflect local differences in the prey availability in the two habitats. The jaw width limited the size of prey, which is expected for predators who swallow the preys without chewing. The proportion of individuals with empty stomachs was higher in the Rio de Janeiro population (39.2%) than in the Espírito Santo population (17.9%), suggesting that the former could be in a lower energy balance. The females of the species were larger than the males, which may result from the production of larger eggs.
authors.affiliation: Instituto de Biologia Roberto Alcantara Gomes, Departamento de Ecologia, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brasil.
authors.forename: Lívia
authors.initials: L
authors.lastname: Coco
authors.affiliation: Instituto de Biologia Roberto Alcantara Gomes, Departamento de Ecologia, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brasil.
authors.forename: Vitor N T
authors.initials: VN
authors.lastname: Borges Júnior
authors.affiliation: Instituto de Biologia Roberto Alcantara Gomes, Departamento de Ecologia, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brasil.
authors.forename: Luciana A
authors.initials: LA
authors.lastname: Fusinatto
authors.affiliation: Instituto de Biologia, Departamento de Biologia Geral, Universidade Federal Fluminense, Niteroi, RJ, Brasil.
authors.forename: Mara C
authors.initials: MC
authors.lastname: Kiefer
authors.affiliation: Instituto de Biologia Roberto Alcantara Gomes, Departamento de Ecologia, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brasil.
authors.forename: Jane C F
authors.initials: JC
authors.lastname: Oliveira
authors.affiliation: Instituto de Biologia Roberto Alcantara Gomes, Departamento de Ecologia, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brasil.
authors.forename: Pablo G
authors.initials: PG
authors.lastname: Araujo
authors.affiliation: Associacao Educacional de Vitoria, Vitoria, ES, Brasil.
authors.forename: Bianca M
authors.initials: BM
authors.lastname: Costa
authors.affiliation: Instituto de Biologia Roberto Alcantara Gomes, Departamento de Ecologia, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brasil.
authors.forename: Monique
authors.initials: M
authors.lastname: van Sluys
authors.affiliation: Instituto de Biologia Roberto Alcantara Gomes, Departamento de Ecologia, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brasil.
authors.forename: Carlos F D
authors.initials: CF
authors.lastname: Rocha
mesh_terms: D000818:Animals; D001001:Anura / Q000145:classification / Q000502:physiology*; D001938:Brazil; D005247:Feeding Behavior / Q000502:physiology*; D005260:Female; D005766:Gastrointestinal Contents; D008297:Male; D012727:Sex Characteristics; D014197:Trees