caa a22 4500 60622811X CHVBK 20210128101202.0 cr unu---uuuuu 210128e20150501xx s 000 0 eng 10.1007/s10641-014-0363-3 doi (NATIONALLICENCE)springer-10.1007/s10641-014-0363-3 Geographic variation in acoustic signaling in the guardian darter Etheostoma oophylax [Elektronische Daten] effects of contemporary versus historical isolation [Patricia Noel, Carol Johnston] Geographical variation in acoustic signals has been demonstrated in many taxa, including freshwater fishes. Previous studies have investigated variation in acoustic signaling between populations naturally isolated into separate drainages. However, the effect of man-made habitat modifications such as dams on the evolution of communication in fishes in unexplored. We used the guardian darter, Etheostoma oophylax to test for geographic divergence in acoustic signals in three streams in the Tennessee River Drainage. Panther and Sugar creeks were once linked by the Blood River but were isolated with the installment of the Kentucky Dam in 1930, while Anderson Creek was historically isolated from these two streams. This framework allowed us to test the effect of isolation on signal structure in these populations for both long and short timescales. We discovered significant variation in both the spectral and temporal components of E. oophylax vocalizations between sites isolated due to drainage locality, but not among sites isolated by the dam. We conclude that geographic isolation is contributing to signal divergence but it is likely that less than a century is not long enough of a timescale for signal divergence between Panther and Sugar Creek to become detectable. Springer Science+Business Media Dordrecht, 2014 Fish nationallicence Evolution nationallicence Vocalizations nationallicence Courtship nationallicence Behavior nationallicence Noel Patricia Department of Fisheries, Auburn University, 203 B Swingle Hall, 36849, Auburn, AL, USA aut Johnston Carol Department of Fisheries, Auburn University, 203 B Swingle Hall, 36849, Auburn, AL, USA aut Environmental Biology of Fishes Springer Netherlands 98/5(2015-05-01), 1355-1363 0378-1909 98:5<1355 2015 98 10641 https://doi.org/10.1007/s10641-014-0363-3 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10641-014-0363-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Noel Patricia Department of Fisheries, Auburn University, 203 B Swingle Hall, 36849, Auburn, AL, USA aut NATIONALLICENCE 700 1- Johnston Carol Department of Fisheries, Auburn University, 203 B Swingle Hall, 36849, Auburn, AL, USA aut NATIONALLICENCE 773 0- Environmental Biology of Fishes Springer Netherlands 98/5(2015-05-01), 1355-1363 0378-1909 98:5<1355 2015 98 10641