Hyla chrysoscelis Cope, 1880 Cope's Gray Treefrog. Question: Scientists Recorded The Call Frequency Of 20 Gray Tree Frogs, Hyla Chysoscelis, As A Function Of Field Air Temperature, The Following Is The Relevant Computer Output For The Give Data. The gray Hyla chrysoscelis calls, Nebraska 2010 Great advice, friendly people, and lots of … So, how does one know which is which? The dashed line refers to Zweifel's (1970) northeastern H. chrysoscelis. George R. Cline 1 Cope’s gray treefrogs (Hyla chrysoscelis) and eastern gray treefrogs (Hyla versicolor) are members of a cryptic, diploid-tetraploid species complex. call to esophageal temperature in Hyla versicolor and H. chrysoscelis; refer to Table 1 for explana- tion of regression lines. The tetraploid Eastern Gray Treefrog (Hyla versicolor) originates from multiple, separate hybridization events of the diploid Cope’s Gray Treefrog (Hyla chrysoscelis) with now-extinct diploid anurans. Their calls are different, however. The Cope’s Gray Treefrog (Hyla chrysoscelis) is physically identical to the gray treefrog (Hyla versicolor). (Hyla chrysoscelis) Call; Narration; Map of Distribution; County Occurrence Map; Identification: Kentucky’s two kinds of Gray Treefrogs are identical in appearance - both range to just over 2 inches long as adults and have large sticky toe pads that allow them to climb on just about any surface. The call of Cope’s gray treefrog is a high pitched buzzing trill with 34 to 69 pulses per second. Pardon the quality, this was made strictly to get the calls. H. chrysoscelis is diploid while H. versicolor is tetraploid. The two species are visually indistinguishable, exhibit highly similar ecology and behavior, and co-occur frequently across their range. RESPONSES OF FEMALE Hyla chrysoscelis FROM EASTERN GEORGIA AND SOUTH CAROLINA IN CALL DISCRIMINATION EXPERIMENTS. https://www.inhs.illinois.edu/collections/herpetology/data/ilspecies/hy_versi_c We found no significant response to either call type for either size class. The call of the gray treefrog is a musical trill with from 17 to 35 pulses per second. the background noise is the factory I work at. LifeSciencesContributions RoyalOntarioMuseum 117 DistributionandCallParameters ofHylachrysoscelisand HylaversicolorinMichigan JamesP.Bogart AlanP.Jaslow Responses to calls Responses to calls of H. chrysoscelis from of H. chrysoscelis from Number Chatham Co., Ga. Bastrop Co., Tex. TABLE 3. We assessed the phonotaxis of 144 juvenile Hyla chrysoscelis (Cope’s Gray Treefrogs) of two size classes to choices between silence, conspecific, or heterospecific Hyla versicolor (Eastern Gray Treefrog) cues in an experimental setting using an artificial arena. The chromosome numbers of each species is also different. externally. Cope’s Gray can be differentiated in the field by two methods: location (in most cases), and; their advertisement call. They also have different numbers of chromosomes. Point 1 is the mean pulse rate of eastern H. chrysoscelis corrected to 240C reported by Ger- This has resulted in considerable taxonomic confusion, especially in early reports. Hyla chrysoscelis has a high-pitched buzzing trill with 34-69 pulses per second (depending on the temperature) and Hyla versicolor has a trill rate of 17-35 pulses per second.
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