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California Department of Fish and Game Natural Diversity Database Full Condensed Report for Selected Elements-Multiple Records per Page Rana draytonii California red-legged frog Element Code:AAABH01022 Status NDDB Element Ranks Other Lists Federal: Threatened Global:G4T2T3 CDFG Status: SC State: None State:S2S3 Habitat Associations General: LOWLANDS&FOOTHILLS IN OR NEAR PERMANENT SOURCES OF DEEP WATER WITH DENSE,SHRUBBY OR EMERGENT RIPARIAN VEGETATION. Micro: REQUIRES 11-20 WEEKS OF PERMANENT WATER FOR LARVAL DEVELOPMENT.MUST HAVE ACCESS TO ESTIVATION HABITAT. Occurrence No.100 Map Index: 25516 EO Index: 7053 Dates Last Seen Occ Rank: Unknown Element: 1986-03-26 Origin: Natural/Native occurrence Site: 1986-03-26 Presence: Presumed Extant Trend: Unknown Record Last Updated: 1996-01-10 Quad Summary:Clifton Court Forebay(3712175/463D) County Summary:Alameda LaULong: 37.79235°/-121.60305° Township: 02S UTM: Zone-10 N4183695 E622996 Range: 03E Area: Mapping PrecisionNOWSPECIFIC Section: 01 Qtr:NW Elevation: 100 ft Symbol Type:POLYGON Meridian: M Location:CREEK LOCATED JUST SE OF THE INTERSECTION OF KELSO ROAD AND BRUNS AVENUE,NORTH OF BETHANY RESERVOIR. Ecological:HABITAT IS AN INTERMITTENT CREEK. General: AN UNKNOWN NUMBER OF ADULTS OBSERVED ON 26 MARCH 1986. Owner/Manager:UNKNOWN Occurrence No.263 Map Index: 40060 EO Index: 35062 Dates Last Seen Occ Rank: Fair Element: 1997-03-06 Origin: Natural/Native occurrence Site: 1997-03-06 Presence: Presumed Extant Trend: Unknown Record Last Updated: 1998-11-02 Quad Summary:Clifton Court Forebay(3712175/463D) County Summary:Contra Costa Lat/Long: 37.805660/-121.621610 Township: 01S UTM: Zone-10 N4185147 E621340 Range: 03E Area: 11.9 acres Mapping PrecisionSPECIFIC Section: 35 Qtr:NW Elevation: 100 ft Symbol Type:POLYGON Meridian: M Location:JUST NORTH OF THE BANKS PUMPING PLANT ON THE CALIFORNIA AQUEDUCT,SW OF CLIFTON COURT FOREBAY,4 MILES SSE OF BYRON Location Detail:SITE IS LOCATED SOUTH OF THE SOUTHERN END OF BYRON HOT SPRINGS ROAD.THIS DRAINAGE WAS PREVIOUSLY DAMMED IN SEVERAL LOCATIONS TO CREATE PONDS.DAMS HAVE NOT BEEN MAINTAINED,BUT SOME SMALL AREAS OF PONDED WATER REMAIN. Ecological:HABITAT CONSISTS OF A SMALL DRAINAGE WITH INTERMITTENT WATER FLOW.DEEPEST AREAS OF PONDED WATER(18-24 INCHES)IS VEGETATED BY SCIRPUS MARITIMUS;SURROUNDING AREAS DOMINATED BY DISTICHLIS SPICATA,AND MAVELLA LEPROCA. General: 5 ADULT FROGS WERE OBSERVED ON 6 MAR 1997 IN A SMALL(3 FT X 3 FT)POOL WITH STEEP,ERODED BANKS. Owner/Manager:DWR Occurrence No.264 Map Index: 40061 EO Index: 35063 Dates Last Seen Occ Rank: Good Element: 2005-03-09 Origin: Natural/Native occurrence Site: 2005-03-09 Presence: Presumed Extant Trend: Unknown Record Last Updated: 2005-05-10 Quad Summary:Clifton Court Forebay(3712175/463D) County Summary:Alameda LaULong: 37.79277°/-121.62294° Township: 02S UTM: Zone-10 N4183715 E621244 Range: 03E Area: 12.5 acres Mapping PrecisionSPECIFIC Section: 02 Qtr:NE Elevation: 200 ft Symbol Type:POLYGON Meridian: M Location:UNNAMED CREEK THAT INTERSECT THE CALIFORNIA AQUEDUCT AT MILEPOST 3.81,NORTH OF BETHANY RESERVOIR,5 MILES SSE OF BYRON Location Detail:SITE IS LOCATED DIRECTLY DOWNSTREAM OF THE CULVERT UNDER THE AQUEDUCT,AT CA MP 3.81 E. Ecological:HABITAT CONSISTS OF A SMALL,PERENNIAL CREEK WITHIN THE RIGHT-OF-WAY OF THE CALIFORNIA AQUEDUCT.CREEK IS DENSELY VEGETATED BY CATTAILS.LARGE STOCK PONDS CAN BE FOUND BOTH UPSTREAM AND DOWNSTREAM,PROVIDING POTENTIAL BREEDING HABITAT. General: 1 ADULT OBSERVED,6 MAR 1997,IN A CEMENT SILT TRAP.3 ADULTS/2 SUB-ADULTS OBSERVED,9 MAY 2000.1 ADULT OBSERVED,20 AUG 2002.7 ADULTS OBSERVED,29 DEC 2004-9 MAR 2005,INCLUDING 2 ADULTS IN AMPLEXUS;NO EGG MASSES FOUND LATER. Owner/Manager:DWR Commercial Version--Dated May 01,2010--Biogeographic Data Branch Page 47 Report Printed on Thursday,July 01,2010 Information Expires 11/01/2010