Breeding chorus indices are weakly related to estimated abundance of boreal chorus frogs
Copeia
By: P.S. Corn, E. Muths, A.M. Kissel, and R. D. Scherer
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Abstract
Call surveys used to monitor breeding choruses of anuran amphibians generate index values that are frequently used to represent the number of male frogs present, but few studies have quantified this relationship. We compared abundance of male Boreal Chorus Frogs (Pseudacris maculata), estimated using capture–recapture methods in two populations in Colorado, to call index values derived from automated recordings. Single index values, such as might result from large monitoring efforts, were unrelated to population size. A synthetic call saturation index (CSI), the daily proportion of the maximum possible sum of index values derived from multiple recordings, was greater in larger populations, but the relationship was not highly predictive.
Suggested Citation
Corn, P., Muths, E., Kissel, A., Scherer, R.D., 2011, Breeding chorus indices are weakly related to estimated abundance of boreal chorus frogs: Copeia, v. 2011, no. 3, p. 365-371, https://doi.org/10.1643/CH-10-190.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Breeding chorus indices are weakly related to estimated abundance of boreal chorus frogs |
| Series title | Copeia |
| DOI | 10.1643/CH-10-190 |
| Volume | 2011 |
| Issue | 3 |
| Year Published | 2011 |
| Language | English |
| Publisher | The American Society of Ichthyologists and Herpetologists |
| Publisher location | http://www.asih.org |
| Contributing office(s) | Northern Rocky Mountain Science Center |
| Description | 7 p. |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Copeia |
| First page | 365 |
| Last page | 371 |