Túngara frogs
نویسندگان
چکیده
Why are they called túngara frogs? As in most frog species, males call to attract females. Unlike most other frog species, túngara frogs produce both simple and complex calls. A simple call consists of a frequencymodulated sweep called a ‘whine’, while a complex call is a whine plus one to six or seven broadband ‘chucks’. The name ‘túngara’ frog is onomatopoeically derived from the male’s call: ‘tún’ is the whine, ‘gara’ are two chucks.
منابع مشابه
Acoustic preferences and localization performance of blood-sucking flies (Corethrella Coquillett) to túngara frog calls
Mating signals that increase attractiveness of males to females can also increase conspicuousness of the signaler to predators and parasites. We investigated the acoustic preference of species of blood-sucking flies of the genus Corethrella (Diptera: Corethrellidae), which eavesdrop on the sexual advertisement signals of túngara frogs (Physalaemus pustulosus). Male frogs of this species faculta...
متن کاملVestigial preference functions in neural networks and túngara frogs.
Although there is a growing interest in understanding how perceptual mechanisms influence behavioral evolution, few studies have addressed how perception itself is shaped by evolutionary forces. We used a combination of artificial neural network models and behavioral experiments to investigate how evolutionary history influenced the perceptual processes used in mate choice by female túngara fro...
متن کاملMixed Sex Effects on the Second-to-Fourth Digit Ratio of Túngara Frogs (Engystomops pustulosus) and Cane Toads (Rhinella marina).
Sexual dimorphism in the ratio of digit lengths has been correlated to behavioral, physiological, and morphological traits in a variety of taxa. While sexual dimorphism in the second-to-fourth digit length ratio (2D:4D) is a well-established indicator of prenatal androgen exposure in mammals, investigations into the patterns of 2D:4D and the drivers of such variation in other taxa are lacking. ...
متن کاملIsland Populations of Physalaemus Pustulosus: History Influences Genetic Diversity and Morphology
Island populations are convenient models of large-scale evolutionary processes and provide natural replicates of evolution. Recently founded island populations also provide an opportunity to study populations derived from few individuals, and these populations, in particular, often show rapid diversification. Here we report morphological and molecular data for the túngara frog, Physalaemus pust...
متن کاملDanger Comes from All Fronts: Predator-Dependent Escape Tactics of Túngara Frogs
The escape response of an organism is generally its last line of defense against a predator. Because the effectiveness of an escape varies with the approach behaviour of the predator, it should be advantageous for prey to alter their escape trajectories depending on the mode of predator attack. To test this hypothesis we examined the escape responses of a single prey species, the ground-dwellin...
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عنوان ژورنال:
- Current Biology
دوره 16 شماره
صفحات -
تاریخ انتشار 2006