BUFO FOWLERI (PUTNAM) IN NORTHERN GEORGIA
نویسندگان
چکیده
منابع مشابه
Evidence of convergent character displacement in release vocalizations of Bufo fowleri and Bufo terrestris (Anura; Bufonidae)
Anuran release vocalizations prevent prolonged amplexus of males by conspecific and heterospecific males, whereas advertisement vocalizations potentially act as a premating isolation mechanism. Selection favouring prompt release during heterospecific amplexus should result in convergent character displacement in release vocalizations. Conversely, selection should produce divergent character dis...
متن کاملInvestigating opposing patterns of character displacement in release and advertisement vocalizations of Bufo fowleri and Bufo americanus (Anura; Bufonidae)
Anuran release vocalizations function to prevent prolonged amplexus between males, whereas advertisement vocalizations potentially act as a premating isolation mechanism. To facilitate rapid release during heterospecific amplexus, selection should favor convergent character displacement in release vocalizations. Conversely, to promote isolation between sympatric congeners, selection should favo...
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Studies of kangaroos suggest that hopping provides energy savings during locomotion at high speeds, although studies of small mammals suggest that hopping is no more economical than running. To obtain comparative data on anurans, we exercised Fowler's toads (Bufo woodhousei fowleri, 25.8 g) on treadmills at speeds ranging from 0.09 to 0.63 km h-1 while measuring oxygen consumption (VO2), endura...
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متن کاملOn Putnam
Hilary Putnam has made major contributions to philosophy of mind and philosophy of language. In philosophy of mind, he developed the theories of multiple instantiability and functionalism. In philosophy of language, a major contribution of his is semantic externalism. This paper will give a very brief overview of multiple instantiability and functionalism, and then describe semantic externalism...
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ژورنال
عنوان ژورنال: Science
سال: 1908
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.28.723.655