BigCB Catalog Detail: "Demography, migration and metapopulations structure of pond breeding salamanders"
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DatasetID 296
Name Demography, migration and metapopulations structure of pond breeding salamanders
Description In December 1991, we initiated a long-term study of the California Tiger Salamander (Ambystoma californiense) at a breeding pond in Monterey County, California. Because of habitat loss, this species is a candidate for federal endangered species status, but many basic features of its life history and demography have not been studied in detail. During the first seven years of this study, we captured, measured, individually marked, and released 657 breeding adults and 1895 newly metamorphosed juveniles at the drift fence encircling this pond. We also used skeletochronology to investigate age structure in cohorts of breeding adults. Numbers of breeding adults varied by more than a factor of four among years, and annual juvenile production ranged from 121-775 metamorphs. Contrary to the results of related studies, total juvenile production was positively related to the total biomass of breeding females. Both skeletochronology and mark-recapture data indicate that most individuals do not reach sexual maturity until 4-5 years of age, and, although individual longevity can exceed 10 years, less than 50% of individuals returned to breed a second time. These results suggest that this breeding population was a reproductive sink during the period of this study and that isolated breeding ponds may be insufficient for the long-term maintenance of viable populations of A. californiense.

Hastings was used as a long-term study site.

Study focuses mainly on one species of salamander, thus it is unlikely that there are species lists associated.
Physical Location
Publisher/Owner Peter C. Trenham
Publication Date
Permissions Undetermined
Source Mark Stromberg NRS file
Contact Mark Stromberg
Type Biological Survey - Observational
Subject Animal
Geo. Extent Hastings Reserve
URL https://berkeley.app.box.com/files/0/f/372728021/1/f_3053305985
NRS Registry? yes
Format Paper
Timespan Start 1991
Timespan End 1999
Total Items
Databased Items 0   (as of 2012-09-03)
Comments Trenham, Peter C.; Shaffer, H. Bradley; Koenig, Walter D.; et al. 2000. Life history and demographic variation in the California Tiger Salamander (Ambystoma californiense). Copeia 2:365-377
Entered By Jessica Rothery
Last Updated 2015-12-28 11:48:18

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