Uncovering the Natural History of the Bromeligenous Frog Crossodactylodes izecksohni (Leptodactylidae, Paratelmatobiinae)

Autor(es):Mostrar menos -

Ferreira, Rodrigo B. ^{[1, 2, 3]} ; Monico, Alexander T. ^{[4, 2]} ; Zocca, Cassio Z. ^{[4, 2]} ; Santos, Marcus Thadeu T. ^[5] ; Lirio, Fernanda C. F. ^[2] ; Tonini, Joao F. R. ^{[6, 7]} ; Sabagh, Leandro T. ^[8] ; Cipriano, Rafael S. ^[4] ; Waichert, Cecilia ^[2] ; Crump, Martha L. ^[9] ; Beard, Karen H. ^{[1, 3]} ; Toledo, Luis Felipe ^[10] ; Duca, Charles ^[2]

Afiliação do(s) autor(es)

^[1] Utah State Univ, Dept Wildland Resources, Logan, UT 84322 - USA

^[2] Univ Vila Velha, Programa Posgrad Ecol Ecossistemas, BR-29102920 Vila Velha, ES - Brazil

^[3] Utah State Univ, Ecol Ctr, Logan, UT 84322 - USA

^[4] Inst Nacl Mata Atlantica, BR-29650000 Santa Teresa, ES - Brazil

^[5] Univ Estadual Paulista, Inst Biociencias, Programa Posgrad Zool, BR-13506900 Rio Claro, SP - Brazil

^[6] Harvard Univ, Museum Comparat Zool, 26 Oxford St, Cambridge, MA 02138 - USA

^[7] George Washington Univ, Dept Biol Sci, 2029 G St NW, Washington, DC 20052 - USA

^[8] Univ Estado Rio De Janeiro, Dept Ecol, Lab Ecol Vertebrados, BR-20550013 Rio De Janeiro, RJ - Brazil

^[9] Utah State Univ, Dept Biol, Logan, UT 84322 - USA

^[10] Univ Estadual Campinas, Inst Biol, Dept Biol Anim, Lab Hist Nat Anfibios Brasileiros, BR-13083862 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: South American Journal of Herpetology; v. 14, n. 2, p. 136-145, AUG 2019.
• Citações Web of Science: 0

Resumo

Leptodactylidae consists of more than 200 described species distributed throughout the Neotropics. The five species in the genus Crossodactylodes are the only species in this family that complete their entire life cycle in rainwater accumulated between bromeliad leaves. We surveyed bromeliads for Crossodactylodes izecksohni in its type locality: the municipality of Santa Teresa, Brazil's Atlantic Forest. We found C. izecksohni in 12 species of bromeliads. The sex ratio was approximately 1:1. Males were distinguished from females by hypertrophy of upper and forearms and the presence of nuptial pads formed by well-developed spines on the first finger. Eggs, tadpoles, juveniles, and adults were found in bromeliads throughout the year. Males defended clusters of a few bromeliads. Females were also territorial. ``Female choice{''} was the main mate acquisition tactic of C. izecksohni, but ``male-male competition{''} and ``satellite strategy{''} were displayed as well. Males also called from axils with eggs and tadpoles. The clutch structure was a single egg either aquatic-free or non pendant, slightly suspended above the water level, and attached to a bromeliad leaf. The mean number of eggs and tadpoles found in occupied bromeliads was 2.5 (range 1-7) and 3.5 (range 1-10), respectively. Males guarded and defended eggs and tadpoles against conspecilics and predators. Adults displayed a wide variety of antipredator mechanisms. Limited resources within bromeliads may drive selective pressure and result in the deposition of few large eggs, parental care behaviors, and territoriality. The complex behavior of C. izecksohni makes it a model taxon for the study of behavioral and evolutionary ecology. (AU)

• Processo FAPESP: 16/25358-3 - O fungo quitrídio no Brasil: da sua origem às suas consequências
• Beneficiário: Luis Felipe de Toledo Ramos Pereira
• Modalidade de apoio: Auxílio à Pesquisa - Temático