California Tiger Salamander Workshop 2012

Our popular workshop on the California tiger salamander returned once again.  This was a great opportunity to learn from a leading expert on the biology, habitat requirements and conservation strategies for this rare and beautiful salamander.


Thursday, June 7, 2012
8:30 AM - 3:30 PM

Lunch will be provided

COST: $350.00
Payable by check to Elkhorn Slough Foundation
Payable by credit card (online)


Instructor Information

Dr. Peter Trenham
Lecturer and Advisor
Penn State University


Grey Hayes



See also: California Tiger Salamander, Habitat Restoration

On June 7, 2012, Pete Trenham, Ph.D. presented a workshop at the Elkhorn Slough National Estuarine Research Reserve on the biology and conservation of the California tiger salamander (CTS). Dr. Trenham has published a variety of papers on the ecology and life history of the California tiger salamander and has taught this popular workshop on many occasions. The workshop consisted of a daytime classroom session and enrollment in one of two field training practica, either June 7, 4:30-8:30 (after the workshop portion) or June 8, 9am-1pm.

Workshop Objectives:   

  • Understanding of the biology of California tiger salamanders
  • Understanding of habitat management for this species
  • Understanding of how to apply information in large-scale and local conservation planning efforts

Topics discussed:

  • The geographic distribution of California tiger salamanders and hybrid populations
  • Aquatic habitats and their management
  • Individual organism movement patterns
  • Population and community ecology
  • Survey methods
  • Methods for assessing potential project impacts and approaches for avoidance and minimization

Field training practicum: Participants also received training in species identification, sampling techniques, and habitat requirements of the California tiger salamander.  Workshop moderator Grey Hayes will use the field setting to assist participants in analysis of the impacts of a fictitious development proposal so that they will be better able to analyze impacts and design avoidance/mitigation in the real world.

***very important***

It is important to note that no component of this workshop should be construed to apply to attendees' ability to obtain permits related to the CTS; if you are interested in how workshop activities might be used for permitting, you are encouraged to contact your agency permitting representative.


Documents and Publications

Contact List
We encourage participants to download the contact list to assist with arranging a rideshare or to get in contact with someone you met at the workshop. Those interested in sharing a ride to the event are marked on the contact list.

California Tiger Salamander Workshop Supplemental Materials
PDF, 443KB
Dr. Pete Trenham
Elkhorn Slough Coastal Training Program
Read Me: Important Instructions READ PRIOR to Field Practicum
PDF, 174KB
Grey Hayes
Elkhorn Slough Coastal Training Program
Amphibian Upland Habitat Use & Its Consequences for Population Viability
PDF, 197KB
Peter C. Trenham & H. Bradley Shaffer
Ecological Applications 15(4):1158-1168
Calculating Biologically Accurate Mitigation Credits: Insights from the California Tiger Salamander
PDF, 415KB
Christopher Searcy and Bradley Shaffer
Conservation Biology 22(4):997-1005
Distribution of Migrating Adults Related to the Location of Remnant Grassland around an Urban California Tiger Salamander (Ambystoma californiense) Breeding Pool
PDF, 341KB
Peter C. Trenham and David G. Cook
Urban Herpetology, Herpetological Conservation, Mitchell, J.C., and R.E. Jung Brown (Eds.). Society for the Study of Amphibians and Reptiles, Salt Lake City, Utah, USA.
Life History and Demographic Variation in the California Tiger Salamander
PDF, 101KB
Peter C. Trenham, H. Bradley Shaffer, Walter D. Koenig, and Mark R. Stromberg
Copeia 2:365-377
Movement Patterns and Migration Distances in an Upland Population of California Tiger Salamander (Ambystoma californiense)
PDF, 1.1MB
Susan G. Orloff
Herpetological Conservation and Biology 6(2):266-276
Movement patterns and migration distances in an upland population of California Tiger Salamander (Ambystoma Californiense)
PDF, 1.1MB
Susan Orloff
Herpetological Conservation and Biology
Spatially Autocorrelated Demography and Interpond Dispersal In The Salamander Ambystoma californiense
PDF, 339KB
Peter C. Trenham, Walter D. Koenig and H. Bradley Shaffer
Ecology, 82(12):3519-3530
Terrestrial Habitat Use by Adult California Tiger Salamander
PDF, 177KB
Pete Trenham
Journal of Herpetology
The molecular phylogenetics of endangerment: cryptic variation and historical phylogeography of the California tiger salamander, Ambystoma californiense
PDF, 317KB
H. Bradley Shaffer, Gregory B. Pauly, Jeffrey C. Oliver, and Peter C. Trenham
Molecular Ecology 13:3033-3049
Ambystoma californiense, California Tiger Salamander...chapter in
Bradley Shaffer and Pete Trenham
Berkeley Press


A Status Review of the California Tiger Salamander (Ambystoma californiense) + figures and appendices

California Tiger Salamander - photos and facts

California Tiger Salamander - road crossing masacre

Questions and Answers

Submit a question on this subject and we'll provide an answer. grey@elkhornslough.org