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Chemical characterization of epidermal, cloacal and preanal and femoral glands secretions of the Brazilian lizards species of Teiidae Family (Squamata)

Grant number: 15/12841-5
Support Opportunities:Scholarships in Brazil - Doctorate
Effective date (Start): October 01, 2015
Effective date (End): September 30, 2019
Field of knowledge:Biological Sciences - Zoology
Principal Investigator:Miguel Trefaut Urbano Rodrigues
Grantee:Carolina Nisa Ramiro
Host Institution: Instituto de Biociências (IB). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated research grant:11/50146-6 - Comparative phylogeography, phylogeny, paleoclimate modeling, and taxonomy of neotropical reptiles and amphibians, AP.BTA.TEM
Associated scholarship(s):17/19640-0 - Chemical communication in Teiidae lizards: chemistry and behavior, BE.EP.DR


Chemical communication is an important component of biology and social relations of reptiles, who use the vomeronasal system to obtain chemical signs from the environment and transfer them to the nervous system, allowing its interpretation. The chemical compounds used for intraspecific communication are known as pheromones and present a number of functions such as, for exemple, status identification, territories demarcation, information on conspecifics physical and health condition, besides sexual identification, in many cases essential to reproduction. The lizards from the Teiidae family are restricted to the New World, they are diurnal and egg layers, presenting species of medium and large sizes that are important and conspicuous elements of Brazilian herpetofauna, featuring 36 of the 151 species of the family. Data on the chemical communication of Teiidae are basically non-existent, being represented only by a single work that characterized the composition of femoral secretions from males of Tupinambis merianae. This study aims to describe and compare the chemical composition of Teiidae's pheromones by studying the pre-cloacal secretion, femoral pores, cloacal swabs and epidermal secretions in order to (1) verify the potential importance of these factors in the chemical communication between species of this family, (2) investigate if there is variation in these characters according to the types of habitat in which the species occurs and (3) its phylogenetic importance.

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Scientific publications
(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)
RAMIRO, CAROLINA N.; MARTIN, JOSE; DA SILVA JUNIOR, PEDRO ISMAEL; PINTO, HUGO B. A.; MAGALHAES JUNIOR, ARNALDO JOSE C.; ABRAHAO, CARLOS; RODRIGUES, MIGUEL T.. Chemical characterization of the lipids in femoral gland secretions of wild male tegu lizards, Salvator merianae (Squamata, Teiidae) in comparison with captive-bred males. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION C-A JOURNAL OF BIOSCIENCES, v. 75, n. 11-12, p. 443-449, . (15/12841-5)
CARVALHO, ANDRE L. G.; JECKEL, ADRIANA M.; NISA, CAROLINA; LUNA, MARIA CELESTE; PIANTONI, CARLA. A novel epidermal gland type in lizards (alpha-gland): structural organization, histochemistry, protein profile and phylogenetic origins. ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY, v. 192, n. 4, p. 1137-1166, . (15/12841-5, 12/10000-5, 16/08249-6, 15/25272-9, 17/20235-3, 16/09999-9)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
RAMIRO, Carolina Nisa. Chemical characterization of secretions of preanal and femoral glands of Brazilian species of lizards of the family Teiidae (Squamata). 2019. Doctoral Thesis - Universidade de São Paulo (USP). Instituto de Biociências (IBIOC/SB) São Paulo.

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