Hybridization between a rare, native tiger salamander
(Ambystoma californiense) and its introduced congener.
Life history of the tiger salamander
, Ambystoma tigrinum, in northwest North Dakota.
S Department of Agriculture's Natural Resources Conservation Service, and the Environmental Defense Fund to implement a programmatic safe harbor agreement to enroll landowners who want to maintain their stock ponds and surrounding uplands as habitat for the California red-legged frog and California tiger salamander
The tiger salamander
complex, as recognized here, includes two components.
crucifer), American toads (Bufo americanus), and green frogs (Rana clamitans), comprised 74% of the frog populations encountered, while smallmouth salamanders (Ambystoma texanum), tiger salamanders
Urban development is the primary and imminent threat to the remaining seven breeding sites of the Sonoma County tiger salamander
Three other species -- tiger salamanders
, wood frogs and chorus frogs -- did not experience major regional losses during their three-year study, which ended in 1988.
The larger additions will enhance the viability of the unique goldfields, tadpole shrimp, and tiger salamander
populations on the refuge, as well as provide important resting, wintering, and breeding habitat for migratory waterfowl and shorebirds.
Hardwood Slash pine 1994 1995 1996 1994 1995 1996 Eastern narrowmouth toad 93 92 63 79 62 45 Southern toad 103 159 103 92 101 59 Eastern newt 60 51 43 23 16 21 Mole salamander 20 55 46 15 44 42 Tiger salamander
10 27 12 7 19 13 Southern leopard frog 8 11 9 8 9 1 Loblolly pine 1994 1995 1996 Eastern narrowmouth toad 72 72 48 Southern toad 70 88 81 Eastern newt 44 22 31 Mole salamander 15 35 25 Tiger salamander
10 28 5 Southern leopard frog 1 10 5 ANOVA table for the effects of study year, forest type and distance from Lost Lake on days of activity year.
We had anticipated that other species of Ambystoma would be taken, particularly the tiger salamander
Similarly, rapid melting of acidic snow in the Colorado Rockies can severely damage tiger salamander
eggs during a critical five-day period in development, reports John Harte of the University of California, Berkeley.
California Tiger Salamander
(Ambystoma californiense) An emergency rule to give immediate temporary protection to the Santa Barbara County population of the California tiger salamander
was published by the Service in the January 19 Federal Register.