1999
DOI: 10.2307/1447989
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Competitive Calling Behavior by Male Treefrogs, Eleutherodactylus coqui (Anura: Leptodactylidae)

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Cited by 22 publications
(11 citation statements)
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“…Fixed responses as the ones observed during the present study have been documented in several anurans (Wells & Taigen ; Benedix & Narins ; Márquez et al. ; Wells & Schwartz ) and have generally been interpreted as resulting from energetic constraints (Wells ), sensory limitations, or from minor advantages of correlated modifications.…”
Section: Discussionsupporting
confidence: 69%
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“…Fixed responses as the ones observed during the present study have been documented in several anurans (Wells & Taigen ; Benedix & Narins ; Márquez et al. ; Wells & Schwartz ) and have generally been interpreted as resulting from energetic constraints (Wells ), sensory limitations, or from minor advantages of correlated modifications.…”
Section: Discussionsupporting
confidence: 69%
“…The timing of the calls in E. coqui is very precise, and it is controlled by a periodic, but also a relatively ‘flexible’, call oscillator which is capable of tracking periodic stimuli but also unpredictable series of stimuli of different durations and periods (Zelick & Narins ), contrary to what we have observed in E. johnstonei (Tárano & Fuenmayor ). However, during competitive interactions with playbacks that differed in call period, males of E. coqui showed quite rigid responses: They reduced the period and slightly increased the duration of call notes in a fixed way irrespective of the period of the stimulus; in addition, they did not modify the dominant frequency of their calls (Benedix & Narins ). Similarly, males of Alytes obstetricans compete through graded adjustments in call period and call timing (Bosch & Márquez ) while dominant frequency and duration are not dynamically involved in acoustic interactions (Bosch & Márquez ).…”
Section: Discussionmentioning
confidence: 99%
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“…Males of E. johnstonei responded to the presence of the potential competitor but not to its rate of calling, which indicates that they have fixed responses. Fixed responses to potential competitors have been observed in other anurans (e.g., Wells & Taigen 1986;Benedix & Narins 1999) and are often associated to trade-offs between female attraction, male competition, predator attraction, and depletion of energy reserves (Wells 2001;Bernal et al 2006). Males make better use of their energy reserves, and reduce their chances of being predated, if they call at high rates only when females or relatively attractive competitors are close (Wells 1988).…”
Section: Call Periodmentioning
confidence: 99%
“…Terrestrial frogs use a number of methods to accomplish this task, including increased amplitude (Lopez et al 1988), altered spectral components (Given 2009), call rate (Gerhardt et al 2000), number of pulses per call (Jehle and Arak 1998), call duration (Benedix and Narins 1999), or some combination thereof (Wells and Taigen 1986). In Hyla versicolor , the extent to which males adjust call parameters to avoid overlap is proportional to chorus size (Schwartz et al 2002).…”
Section: Discussionmentioning
confidence: 99%