Journal ArticleDOI
Phonotactic Responses of Female Northern Leopard Frogs (Rana pipiens) to Rana blairi, a Presumed Hybrid, and Conspecific Mating Trills
TLDR
It is concluded that the mating trill of Rana pipiens may function as a premating isolating mechanism as predicted by the currently accepted theory.Abstract:
Playback tapes of conspecific mating trills evoked positive phonotaxis in gravid (but not ovulated) female Rana pipiens under laboratory conditions, whereas, playbacks of mating trills of Rana blairi and a putative hybrid elicited what is interpreted to be negative phonotaxis and no response, respectively. It is concluded that the mating trill of Rana pipiens may function as a premating isolating mechanism as predicted by the currently accepted theory.read more
Citations
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Journal ArticleDOI
Mating call selectivity in the thalamus and midbrain of the leopard frog (Rana p. pipiens): Single and multiunit analyses
TL;DR: It is suggested that these regions of the anuran auditory system show a particular preference for tone combinations which approximate the spectral energy distribution of the species mating call.
Journal ArticleDOI
Systematics of the Rana pipiens Complex: Puzzle and Paradigm
TL;DR: For example, in this paper, it was shown that the common edible frog ("R. esculenta") is a hybridogenetic form of the Rana complex, which will considerably alter the conclusions of much of the developmental, genetic, and physiological work conducted with this species.
Journal ArticleDOI
Investigating the viability of photo-identification as an objective tool to study endangered sea turtle populations
TL;DR: Photo-id has the benefit of being suitable for male turtles, which do not come ashore to allow conventional tagging, and so are rarely identified, and may facilitate the assessment of the numbers of male and female turtles at breeding areas and allow adult sex ratios to be measured.
Journal ArticleDOI
Frequency selectivity in the anuran auditory midbrain: Single unit responses to single and multiple tone stimulation
TL;DR: All multiple tone responders could be totally inhibited by the addition of a single tone to the excitatory tone combination, and their possible role in the selective detection of this call is discussed.
Journal ArticleDOI
Effects of estradiol on auditory evoked responses from the frog's auditory midbrain.
Silvana Yovanof,Albert S. Feng +1 more
TL;DR: It is suggested that estrogen can alter the response properties of midbrain auditory neurons in frogs, and be responsible for an increase in average auditory evoked responses in Rana p.
References
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Journal ArticleDOI
The social behaviour of anuran amphibians
TL;DR: Temporal patterns of anuran reproduction fall into two broad categories: prolonged breeding and explosive breeding, and many aspects of vocal behaviour and chorus organization can be viewed as consequences of intrasexual competition.
Book ChapterDOI
Measures of Association for Cross Classifications III: Approximate Sampling Theory
Leo A. Goodman,William Kruskal +1 more
TL;DR: In this paper, the authors derived large sample normal distributions with their associated standard errors for various measures of association and various methods of sampling and explained how the large sample normality may be used to test hypotheses about the measures and about differences between them, and to construct corresponding confidence intervals.
Journal ArticleDOI
Hybridization between species of the rana pipiens complex in central texas.
TL;DR: Moore's interpretation gained wide acceptance and became a standard textbook as discussed by the authors, leading to the taxonomic lumping of many allopatric nominal species on the basis of the assumption of conspecificity, resulting in cases of what Vaurie (1955) called "pseudo-subspecies" taxonomically confused as subspecies.
Journal ArticleDOI
Rana pipiens Complex: Mating Call Structure and Taxonomy
M. J. Littlejohn,R. S. Oldham +1 more
TL;DR: Geographic variability in call structure indicates that four largely allopatric populations of leopard frogs are present in the central United States, and it is suggested that the four forms represent distinct species and that the idea of gradual clinal variability in one wide-ranging species is wrong.