caa a22 4500 445858184 CHVBK 20180317145435.0 cr unu---uuuuu 170323e20110401xx s 000 0 eng 10.1007/s10592-010-0144-2 doi (NATIONALLICENCE)springer-10.1007/s10592-010-0144-2 The origin of tiger salamander ( Ambystoma tigrinum ) populations in California, Oregon, and Nevada: introductions or relicts? [Elektronische Daten] [Jarrett Johnson, Robert Thomson, Steven Micheletti, H. Shaffer] Whether intentionally or accidentally introduced, exotic species have the capacity to dramatically disrupt native communities. In central California, tiger salamanders (Ambystoma tigrinum) have been introduced as a by-product of the sport fishing bait industry. Some of these introductions are relatively well known and have resulted in the formation of hybrids with the imperiled native California tiger salamander (A. californiense). Other populations of A. tigrinum, particularly in the northern and eastern parts of the state, remain poorly characterized and are present in regions where relictual amphibian populations of other species have persisted, suggesting that these might be relictual, native A. tigrinum. We used genetic sequence data to determine the provenance of all known extralimital A. tigrinum populations in California and adjacent Oregon and Nevada through comparison with reference samples from the native range of A. tigrinum. Our results suggest that A. tigrinum have been introduced in Northern California, Southern California and the Sierra Nevada, originating from multiple sources across the Great Plains of the US. Furthermore, two populations near the California-Oregon border are most closely related to A. tigrinum populations from Washington and Oregon and may represent native tiger salamander lineages. The Author(s), 2010 Hybridization nationallicence Introduced species nationallicence Mitochondrial DNA nationallicence Non-indigenous species nationallicence Johnson Jarrett Department of Evolution and Ecology, University of California, 95616, Davis, CA, USA aut Thomson Robert Department of Evolution and Ecology, University of California, 95616, Davis, CA, USA aut Micheletti Steven Department of Evolution and Ecology, University of California, 95616, Davis, CA, USA aut Shaffer H. Department of Evolution and Ecology, University of California, 95616, Davis, CA, USA aut Conservation Genetics Springer Netherlands 12/2(2011-04-01), 355-370 1566-0621 12:2<355 2011 12 10592 https://doi.org/10.1007/s10592-010-0144-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10592-010-0144-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Johnson Jarrett Department of Evolution and Ecology, University of California, 95616, Davis, CA, USA aut NATIONALLICENCE 700 1- Thomson Robert Department of Evolution and Ecology, University of California, 95616, Davis, CA, USA aut NATIONALLICENCE 700 1- Micheletti Steven Department of Evolution and Ecology, University of California, 95616, Davis, CA, USA aut NATIONALLICENCE 700 1- Shaffer H. Department of Evolution and Ecology, University of California, 95616, Davis, CA, USA aut NATIONALLICENCE 773 0- Conservation Genetics Springer Netherlands 12/2(2011-04-01), 355-370 1566-0621 12:2<355 2011 12 10592 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer