RAN
URI permanente desta comunidadehttps://bdc.icmbio.gov.br/handle/cecav/1401
Centro Nacional de Pesquisa e Conservação de Répteis e Anfíbios
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Item 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 für Naturforschung, 2020) Ramiro, Carolina N.; Martín, José; Silva Junior, Pedro Ismael da; Pinto, Hugo B. A.; Magalhães Júnior, Arnaldo José C.; Abrahão, Carlos; Rodrigues, Miguel T.Although chemical interactions play an essen tial role in lizard social behavior, the chemical composition of the femoral gland secretions that many lizards use for communication is known for only a few species, mainly European Lacertids. The tegu lizard, Salvator merianae, is the only species of the Teiidae family for which there is available information on lipids in femoral secretions, but only for captive bred males from Argentina. Here, based on mass spectra obtained by GC-MS, we found 69 lipophilic compounds in femoral gland secretions of wild males S. merianae from Brazil, including cholesterol and high amounts of saturated fatty acids (mainly hexadecanoic and octadecanoic). We found contrasting differences between wild and captive-bred males, which lack cholesterol butpresent high amount of 9,12-octadecadienoic acid. These within-species differences between wild and captive liz ards strongly suggest the important influence of different diets on the chemical composition of the femoral gland secretion and suggest caution when interpreting results from captive animals, even in the same species.Item Occasional herpetofaunal introductions into and from the archipelago of Fernando de Noronha, Brazil.(Spixiana, 2023) Toledo, Luís Felipe; Zanotti, Alexandre P.; Bezerra, Lisandra Maria de Lima Silva; Abrahão, Carlos; Lisboa, Cybele SabinoInvasive species are on the rise. It is a global problem and early detections of alien species may be the key to control and eradicate potentially invasive popula tions. Thus, we gathered information of amphibian and reptile species that were introduced to or from the archipelago of Fernando de Noronha, in the northeast of Brazil. We found that at least one lizard species, Tropidurus hispidus (Spix, 1825), may be recently establishing a population in Fernando de Noronha main island, and the endemic skink from Fernando de Noronha, Trachylepis atlantica (Schmidt, 1945), may be establishing a breeding population in Recife, mainland Brazil. Ad ditional cases of accidental or intentional transport of amphibians and reptiles to or from the archipelago that apparently did not lead to the establishment of allo chthonous populations have also been detected and are reported herein. We sug gest stronger surveillance at the ports of the archipelago to prevent further inva sions or evasionsItem RAN participa de congresso de herpetologia.(ICMBio em foco, 2019-08-02) Abrahão, Carlos; Valadão, Rafael; Luz, Vera