Taxonomic review and phylogenetic study of the Ischnocnema guentheri species series (Anura: Brachycephalidae)

• Grant number: 14/05772-4
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: March 01, 2015
• End date: May 31, 2018
• Field of knowledge: Biological Sciences - Zoology - Taxonomy of Recent Groups
• Agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
• Principal Investigator: Célio Fernando Baptista Haddad
• Grantee: Pedro Paulo Goulart Taucci
• Host Institution: Instituto de Biociências (IB). Universidade Estadual Paulista (UNESP). Campus de Rio Claro. Rio Claro , SP, Brazil
• Associated research grant: 13/50741-7 - Diversity and conservation of Brazilian amphibians, AP.BTA.TEM
• Associated scholarship(s): 16/22450-6 - Genetic characterization and speciation of the Ischnocnema guentheri-I. henselii (Anura: Brachycephalidae) species complex in a phylogenomic scale, BE.EP.DR

Abstract

The genus Ischnocnema comprises 32 species divided into five species series. Among them, the I. guentheri species series contains 10 nominal species distributed mainly in the Brazilian Atlantic rainforest. The taxonomy of this species series has been greatly discussed over the past years and its phylogenetic position has been quite unstable. Also, within the I. guentheri species series, some species have a quite confusing taxonomic status. Ischnocnema guentheri was for a long time thought to be a widespread species and, despite its type locality is within the municipality of Rio de Janeiro, state of Rio de Janeiro, Brazil, the species was considered present in more six Brazilian states. However, recent bioacoustics and molecular studies indicated that I. guentheri may actually represent a complex of at least six species. Another example within the I. guentheri species series, Ischnocnema izecksohni was considered endemic to the "Quadrilátero Ferrífero", southernmost portion of the "Espinhaço" range, state of Minas Gerais, Brazil. The species, described from the municipality of Belo Horizonte, is the closest species of I. nasuta. However, bioacoustics data confirmed that I. izecksohni is more widely distributed, reaching the "Mantiqueira" mountain range, also in the state of Minas Gerais. Based on these data and on the fact that I. izecksohni is described based on subjective morphological characters, some authors have questioned the validity of this species with respect to I. nasuta. The present PhD research project aims to make a taxonomic review of the I. guentheri species series and to delimit the species boundaries of the group based on bioacoustics, morphological and molecular data, and also to test the monophyly of this species series as it is known today, using molecular data. (AU)

Scientific publications

(6)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

VERA CANDIOTI, FLORENCIA; GOLDBERG, JAVIER; AKMENTINS, MAURICIO S.; NOGUEIRA COSTA, PAULO; GOULART TAUCCE, PEDRO PAULO; POMBAL, JR., JOSE. Skeleton in the closet: hidden diversity in patterns of cranial and postcranial ontogeny in Neotropical direct-developing frogs (Anura: Brachycephaloidea). ORGANISMS DIVERSITY & EVOLUTION, v. 20, n. 4, p. 763-783, DEC 2020. (14/05772-4, 19/04076-8)

TAUCCE, PEDRO P. G.; ZAIDAN, BARBARA F.; ZAHER, HUSSAM; GARCIA, PAULO C. A.. A new species of Ischnocnema Reinhardt and Lutken, 1862 (Anura: Brachycephalidae) of the I. lactea species series from southeastern Brazil. Zootaxa, v. 4706, n. 4, p. 531-545, DEC 11 2019. (14/05772-4, 19/04076-8)

TAUCCE, PEDRO P. G.; CANEDO, CLARISSA; HADDAD, CELIO F. B.; LEMMON, ALAN R.; LEMMON, EMILY MORIARTY; VENCES, MIGUEL; LYRA, MARIANA. The mitochondrial genomes of five frog species of the Neotropical genus Ischnocnema (Anura: Brachycephaloidea: Brachycephalidae). MITOCHONDRIAL DNA PART B-RESOURCES, v. 3, n. 2, p. 915-917, 2018. (14/50342-8, 13/50741-7, 14/05772-4)

TAUCCE, PEDRO P. G.; CANEDO, CLARISSA; PARREIRAS, JULIA SOARES; DRUMMOND, LEANDRO O.; NOGUEIRA-COSTA, PAULO; HADDAD, CELIO F. B.. Molecular phylogeny of Ischnocnema (Anura: Brachycephalidae) with the redefinition of its series and the description of two new species. Molecular Phylogenetics and Evolution, v. 128, p. 123-146, NOV 2018. (14/50342-8, 13/50741-7, 14/05772-4)

TAUCCE, PEDRO P. G.; CANEDO, CLARISSA; HADDAD, CELIO F. B.. Two New Species of Ischnocnema (Anura: Brachycephalidae) from Southeastern Brazil and their Phylogenetic Position within the I. guentheri Series. HERPETOLOGICAL MONOGRAPHS, v. 32, p. 1-21, DEC 2018. (14/05772-4)

GOLDBERG, JAVIER; TAUCCE, PEDRO P. G.; INES QUINZIO, SILVIA; HADDAD, CELIO F. B.; VERA CANDIOTI, FLORENCIA. Increasing our knowledge on direct-developing frogs: The ontogeny of Ischnocnema henselii (Anura: Brachycephalidae). ZOOLOGISCHER ANZEIGER, v. 284, p. 78-87, JAN 2020. (14/05772-4, 13/50741-7, 19/04076-8, 14/50342-8)