Evolution of morphology and locomotor performance in anurans: relationships with microhabitat diversification

Autor(es)

Citadini, J. M. ^[1] ; Brandt, R. ^{[2, 3]} ; Williams, C. R. ^[4] ; Gomes, F. R. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Physiol, Biosci Inst, Rua Matao, Travessa 14, 321, BR-05508900 Sao Paulo - Brazil

^[2] Auburn Univ, Dept Biol Sci, Auburn, AL 36849 - USA

^[3] Univ Sao Paulo, Dept Biol, FFCLRP, Ribeirao Preto, SP - Brazil

^[4] Univ South Australia, Sansom Inst Hlth Res, Sch Pharm & Med Sci, Adelaide, SA - Australia

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF EVOLUTIONARY BIOLOGY; v. 31, n. 3, p. 371-381, MAR 2018.
• Citações Web of Science: 6

Resumo

The relationships between morphology, performance, behavior and ecology provide evidence for multiple and complex phenotypic adaptations. The anuran body plan, for example, is evolutionarily conserved and shows clear specializations to jumping performance back at least to the early Jurassic. However, there are instances of more recent adaptation to habit diversity in the post-cranial skeleton, including relative limb length. The present study tested adaptive models of morphological evolution in anurans associated with the diversity of microhabitat use (semi-aquatic arboreal, fossorial, torrent, and terrestrial) in species of anuran amphibians from Brazil and Australia. We use phylogenetic comparative methods to determine which evolutionary models, including Brownian motion (BM) and Ornstein-Uhlenbeck (OU) are consistent with morphological variation observed across anuran species. Furthermore, this study investigated the relationship of maximum distance jumped as a function of components of morphological variables and microhabitat use. We found there are multiple optima of limb lengths associated to different microhabitats with a trend of increasing hindlimbs in torrent, arboreal, semi-aquatic whereas fossorial and terrestrial species evolve toward optima with shorter hindlimbs. Moreover, arboreal, semi-aquatic and torrent anurans have higher jumping performance and longer hindlimbs, when compared to terrestrial and fossorial species. We corroborate the hypothesis that evolutionary modifications of overall limb morphology have been important in the diversification of locomotor performance along the anuran phylogeny. Such evolutionary changes converged in different phylogenetic groups adapted to similar microhabitat use in two different zoogeographical regions. (AU)

• Processo FAPESP: 16/01558-3 - Alocação sexual facultativa em resposta a razão sexual operacional ou juvenil no lagarto Anolis sagrei
• Beneficiário: Renata Brandt Nunes
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado
• Processo FAPESP: 14/04324-8 - Estudo comparativo do comportamento antipredatório e do desempenho locomotor em anuros australianos que diferem em morfologia e hábito
• Beneficiário: Jessyca Michele Citadini
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado
• Processo FAPESP: 13/04418-0 - Coevolução do comportamento antipredatório, desempenho locomotor e morfofisiologia de anuros da Floresta Atlântica
• Beneficiário: Jessyca Michele Citadini
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 13/14125-0 - Análise integrativa do dimorfismo sexual em lagartos: morfologia, significado funcional e seleção
• Beneficiário: Renata Brandt Nunes
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado