[PDF] Top 20 An. Acad. Bras. Ciênc. - vol.76 número2

... as an influential colleague by Lorenz, (Fig. 1) wrote an appreciative piece called ‘Lorenzian ethology’, with a list similar to Tinber- gen’s (Huxley ... See full document

... The whistle is most of the time either practiced with one finger in order to reach high levels of power for long distance speaking (Fig. 2), or directly with the lips for the short distance discussions (Fig. 3) and ... See full document

... A sound recording of the avian morning choir in a forest or the vocalizations from a colony of sea gulls is a chaos of superimposed sounds when the recording is done with one omnidirectional micro- phone. In contrast, a ... See full document

... In the laboratory, DAT recordings were trans- ferred to a POWER MACINTOSH G3/233, G4 or iMAC computer through an AUDIOMEDIA III sound card or iMic adapter. Software used for view- ing, editing and analyzing the ... See full document

... unicolor. An individu- alistic song pattern had already been applied as a category (in the context of macrogeographic varia- tions) to a single species: the White-throated Spar- row Zonotrichia albicollis by ... See full document

... The structure of the song of the populations of the Rufous-collared Sparrow from the studied areas has a very simple modulation and few notes.. This char- acteristic differs from the son[r] ... See full document

... fied. Each of the outputs will give a value between 0.0 (zero match) and 1.0 (perfect match); the un- known sound being recognized as the output with the highest value. The type of ANN used in this ap- plication is a ... See full document

... Recordings of wild animals were first made in the Palearctic in 1900, in the Nearctic in 1929, in Antarctica in 1934, in Asia in 1937, and in the Neotropics in the 1940s. However, systematic collecting did not begin ... See full document

... During an ideal vocal interaction, ...to an exchange of signals, the mode of communica- tion is not arbitrary, but follows certain time- and pattern-specific ...in an interactive context have a ... See full document

... Communication, i.e. signal-based information transfer between individuals, supports social rela- tionships in animals. In a classical view, a commu- nication process can be described as follows: the signal, supporting ... See full document

... In numerous birds and mammal species, parents and offspring have to recognize each other to allow the efficiency of the breeding process (Halliday 1983, Charrier et al. 2001a). This mutual recognition is especially ... See full document

... formation of CCA in L. sativa. All these parameters were dose dependent Thus, our results recommend caution when using guava as a medicinal and phytotherapic plant. Furthermore L. sativa has proven to be an ... See full document

... The intestine measured 302.1 ± 47.15 mm in length, with an intestinal coefficient of 1.30 ± 0.17. The intestine consists of the pyloric flexure, with 11-15 pyloric caeca, initial descending loop (cranial ... See full document

... 2955, FUNED 2959, and of both sides in FUNED 2948, FUNED 2949, FUNED 2952, FUNED 2953 and FUNED 2960; in these specimens the temporal contacts the postocular dorsally, third supralabial ventro-anteriorly, postsupralabial ... See full document

... methanol as a direct carbon source via serine biosynthesis and 2) decreased carbon loss from photorespiration. Nonomura and Benson (1992a, b) declared that water use efficiency significantly increased in methanol treated ... See full document

... of an infinite number of oscillators (degrees of freedom) is not manda- tory for the emergence of ...present an aperiodic behavior, though converging to a limited subspace named ... See full document

... with an Orbitrap LTQ XL (Thermo Fisher Scientific, San Jose Ca, USA) ion trap mass spectrometer using a nanospray (nanoelectrospray) ionization source to generate ions from methanol ... See full document

... is an estuary that has not been systematically assessed through a temporal analysis in order to identify its hydrodynamics characteristics and SPM ...showed an importation trend of salt in all cycles and ... See full document

... is an annual glasswort commercially cultivated in the United States, Mexico, Saudi Arabia, the United Arab Emirates, Egypt, Eritrea and Pakistan, not only for seed oil production (Glenn et ... See full document

... for an effective radical scavenging activity is the 3, 4-orthodihydroxy configuration in ring B and 4–carbonyl group in ring C, which has the best electron donating properties and a radical ... See full document