|
|
Article: Life history of the tiger salamander, Ambystoma tigrinum, in Northwest North Dakota.(COMMUNICATIONS--UNDERGRADUATE)
- Article from:
- Proceedings of the North Dakota Academy of Science
- Article date:
- April 1, 2007
- Author:
CopyrightCOPYRIGHT 2007 North Dakota Academy of Science. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
|
The tiger salamander (Ambystoma tigrinum) complex is widespread across the continental United States, north into Canada, and south into Mexico. Three groups exist: the California form (now identified as A. californiense), an eastern North American form (A. t. tigrinum) that is essentially found east of the Mississippi River, and a west/central group that is made of up the rest of the members including the Mexican assemblage (1, 2). The eastern group has a life history that includes an obligate metamorphosis, the Mexican assemblage contains species that are obligately paedomorphic (i.e., fail to metamorphose and become reproductively mature while retaining larval ...