scholarly journals A MULTIVARIATE ANALYSIS OF GENETIC VARIATION IN THE ADVERTISEMENT CALL OF THE GRAY TREEFROG,HYLA VERSICOLOR

Evolution ◽  
2014 ◽  
Vol 68 (6) ◽  
pp. 1629-1639 ◽  
Author(s):  
Allison M. Welch ◽  
Michael J. Smith ◽  
H. Carl Gerhardt
Keyword(s):  
Multivariate Analysis ◽  
Genetic Variation ◽  
Advertisement Call ◽  
Hyla Versicolor ◽  
Gray Treefrog

scholarly journals Assessing Summer Pond and Lake Inlet Use by Gray Treefrogs (Hyla versicolor/chrysoscelis complex) Using PVC Pipe Traps in Northwest Missouri

2020 ◽  
Vol 48 (2020) ◽  
pp. 17-21
Author(s):  
J. D. McGhee
Keyword(s):  
Sex Ratio ◽  
Hyla Versicolor ◽  
Monitoring Methods ◽  
Contingency Table Analysis ◽  
Detection Rates ◽  
Sampling Locations ◽  
Table Analysis ◽  
Pvc Pipe ◽  
Gray Treefrog

Abstract The widespread decline in amphibian populations highlights the need for establishing rigorous monitoring methods for long-term population studies. In an attempt to launch a long-term monitoring study for a Gray Treefrog complex (Hyla versicolor LeConte /chrysoscelis Cope, hereafter treefrog) population in northwest Missouri, I tested the use of PVC pipe traps in a system of ponds and inlets along a lakeside habitat for three years. For each pond (3) and inlet (2), I established an array of 16 pipes so as to compare differences in use between pipe location, ponds and inlets, and sex ratio between sites. Pipes were checked twice a week during the summer for the presence of treefrogs. Treefrog usage of pipes between ponds and inlets were compared using a contingency table analysis, while an ANOVA was used to assess differences in sex ratios between sites (α = 0.05). A single inlet was used by treefrogs more heavily than the other ponds or inlet (G = 13.61, df = 3, P = 0.0035), however, I found no differences in terms of pipe location within a pond or inlet. Mean sex ratio between water bodies varied but did not significantly differ. There appears to be little effect in terms of pipe placement within our 50 m buffer from the water's edge, but unique habitat effects at sampling locations may significantly affect detection rates or usage.

scholarly journals Does advertisement call variation coincide with genetic variation in the genetically diverse frog taxon currently known as Leptodactylus fuscus (Amphibia: Leptodactylidae)?

2003 ◽  
Vol 75 (1) ◽  
pp. 39-54 ◽  
Author(s):  
W. RONALD HEYER ◽  
YANA R. REID
Keyword(s):  
Genetic Variation ◽  
South America ◽  
Genetic Differentiation ◽  
Related Species ◽  
Geographic Distance ◽  
Single Species ◽  
Advertisement Call ◽  
Closely Related Species ◽  
Multiple Species ◽  
Disturbed Habitats

The frog Leptodactylus fuscus is found throughout much of South America in open and disturbed habitats. Previous study of genetic differentiation in L. fuscus demonstrated that there was lack of genetic exchange among population units consistent with multiple species, rather than a single species. We examine advertisement vocalizations of L. fuscus to determine whether call variation coincides with genetic differentiation. Calls were analyzed for 32 individual frogs from 25 localities throughout the distributional range of L. fuscus. Although there is variation in calls among geographic samples, call variation is not concordant with genetic variation or geographic distance and the call variation observed is less than that typically found among other closely related species of Leptodactylus. This study is an example of the rare pattern of strong genetic differentiation unaccompanied by salient differences in advertisement calls. The relative infrequency of this pattern as currently understood may only reflect the lack of detailed analyses of genetic and acoustic differentiation within population systems currently understood as single species with substantial geographic distributions.

Calling site choice and its impact on call degradation and call attractiveness in the gray treefrog, Hyla versicolor

2015 ◽  
Vol 70 (1) ◽  
pp. 1-19 ◽  
Author(s):  
Joshua J. Schwartz ◽  
Raymond Hunce ◽  
Brandon Lentine ◽  
Kristi Powers
Keyword(s):  
Hyla Versicolor ◽  
Gray Treefrog
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