Isolation induced changes in Guinea Pig Cavia porcellus pup distress whistles

Monticelli, Patrícia Ferreira; Tokumaru, Rosana Suemi; Ades, César

doi:10.1590/s0001-37652004000200027

Cited by 39 publications

(30 citation statements)

References 14 publications

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“…Despite the limitations of a study with restricted amounts of data, the fi ndings described in this paper may support the hypothesis that false killer whales anticipated feeding sessions with a gradual change in their vocal activity. Although sound rates may not give detailed information regarding referential aspects of animals' communication (Clay et al, 2012), it might still shed light about the general arousal levels of the individuals during diff erent conditions (Weary and Fraser, 1995;Grandin, 1998;Frohoff et al, 2004;Monticelli et al, 2004). Among mammals, dolphins possess a very complex communication system (Caldwell and Caldwell, 1968;Puente and Dewbury, 1976;Sjare and Smith, 1986;Dawson and Thorpe, 1990;Weilgart and Whitehead, 1990 ;Norris et al, 1994;BarrettLennard et al, 1996;Herzing, 1996) and like primates (Owing and Virginia, 1978;Mitami and Nishida, 1993 ;Rendall et al, 2000), they can convey information regarding behavioral or environmental changes either by producing particular types of calls (Esch et al, 2009;Hawkins and Gardside, 2010) or with the variations of their rates.…”

Section: Resultsmentioning

confidence: 99%

Variation in the emission rate of sounds in a captive group of false killer whales Pseudorca crassidens during feedings: possible food anticipatory vocal activity?

Platto

Wang

2015

Chin. J. Ocean. Limnol.

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This study examines whether a group of captive false killer whales ( Pseudorca crassidens ) showed variations in the vocal rate around feeding times. The high level of motivation to express appetitive behaviors in captive animals may lead them to respond with changes of the behavioral activities during the time prior to food deliveries which are referred to as food anticipatory activity. False killer whales at Qingdao Polar Ocean World (Qingdao, China) showed signifi cant variations of the rates of both the total sounds and sound classes (whistles, clicks, and burst pulses) around feedings. Precisely, from the Transition interval that recorded the lowest vocalization rate (3.40 s/m/d), the whales increased their acoustic emissions upon trainers' arrival (13.08 s/m/d). The high rate was maintained or intensifi ed throughout the food delivery (25.12 s/m/d), and then reduced immediately after the animals were fed (9.91 s/m/d). These changes in the false killer whales sound production rates around feeding times supports the hypothesis of the presence of a food anticipatory vocal activity. Although sound rates may not give detailed information regarding referential aspects of the animal communication it might still shed light about the arousal levels of the individuals during diff erent social or environmental conditions. Further experiments should be performed to assess if variations of the time of feeding routines may aff ect the vocal activity of cetaceans in captivity as well as their welfare.

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Section: Resultsmentioning

confidence: 99%

Variation in the emission rate of sounds in a captive group of false killer whales Pseudorca crassidens during feedings: possible food anticipatory vocal activity?

Platto

Wang

2015

Chin. J. Ocean. Limnol.

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“…Alarm call (drrr) -sound of one to four harmonics and low intensity and frequency composed of rapidly repeated units (Arvola 1974;Berryman 1976;Coulon 1982;Monticelli and Ades 2011); B. Alarm whistle (chirrup) -sound of high frequency composed of up to five repeated harmonic notes with marked frequency modulation (Berryman 1976;Pettijohn 1979;Tokumaru 2000;Monticelli et al 2004). This call is based on an initial low whistle structure, which has been extended into a longer and higher frequency call (Berryman 1976).…”

Section: Discussionmentioning

confidence: 99%

Antipredator behaviour of domestic guinea pigs (Cavia porcellus)

2016

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The objective of this study was to test the reactions of domestic guinea pigs to the presence of aerial and terrestrial predators in a laboratory setting. We measured the behavioural reactions of 27 adolescent guinea pigs to the presence of a dog, imitation of a bird of prey and an unknown human as control. Kruskal-Wallis ANOVA and Mann-Whitney U Test were used to analyse the differences in duration and frequency of responses (freezing, fleeing, and vigilance) to predators. When confronted with the dog, guinea pigs reacted for the longest time and most frequently by freezing. In presence of the bird of prey, they responded for the longest time and most often by freezing and fleeing. In presence of a human, they showed mostly vigilance. When comparing reactions to the dog and human, there were differences in duration and frequency of freezing and fleeing. When comparing reactions to the bird of prey and control test, we observed differences between fleeing and vigilance. The durations and frequencies of freezing, fleeing and vigilance to the dog and bird of prey were different. The only differences in reactions of males and females occurred in duration and frequency of fleeing in presence of the bird of prey. No vocalization was observed except for two occurrences, of a "drrr" and a "chirrup". Our results indicate that domestic guinea pigs tested under laboratory conditions can discriminate between a terrestrial and an aerial predator, when exposed to them individually. Their antipredator behaviours remained functional, although their vocalizations may have been affected by the absence of signal receivers.

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“…32 In addition, the guinea pig larynx can be distinguished as being related anatomically with diverse structures such as the esophagus, trachea, hyoides, thyroid and parathyroid glands, lymph nodes, and large blood vessels sharing larynx anatomic similitude with human beings 33 ; the very pathology of these structures can injure the nerve endings and lead to modifications in the vocal emissions as they occur in dysphonic processes in man. 17,34 FIGURE 5.…”

Section: Discussionmentioning

confidence: 99%