Annual Report 2005 (62.7MB) - Western Riverside County Regional ...

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Figure 18. Grasshopper Sparrow and Tricolored Blackbird Detections in the Conservation Area in 2005.!(Note: Core Areas are generalrepresentations based ondescriptions in the MSHCPand are not precisely drawn.All field work occurred onconserved lands with landowner permission.!(!(!(!(!(!(##!(!( !(!(!( !(!(!( !(!(!(!( !(!( !(!(!(!(!(!(!(!(!(!(!( !(!( !( !(!(!( !(!(!(!(!( !(!(Conservation AreaCriteria AreaHighways!( Grasshopper Sparrow Detections# Tricolored Blackbird DetectionsTricolored Blackbird Core AreaGrasshopper Sparrow Core AreaShared Core Area0 2.5 5 10 15MilesIWestern Riverside Co. MSHCP Biological Monitoring Program
6.0 MONITORING ACTIVITIESthe Conservation Area as part of a larger state-wide effort sponsored by multiple conservationagencies.Surveys for breeding colonies were carried out over a four-day period in April 2005. Twocolonies were located within the MSHCP Conservation Area during the surveys: one each at theDavis Unit of the San Jacinto Wildlife Area and the Potrero Unit of the San Jacinto WildlifeArea (“Potrero”) (see Figure 18). Successful reproduction was confirmed at the colony onPotrero, meaning the species objectives for tricolored blackbird were met in 2005. A fulldescription of the methodology and results can be found in the individual survey reports for eachspecies (Appendix A – RCA MSHCP Technical Reports – 2. Monitoring Program SurveyResults.).6.4.8 Amphibian Stream SurveysThere are four covered species of stream-dependent amphibians that have species objectivesrequiring the determination of successful reproduction within the Conservation Area and that canbe detected by visual encounter surveys: arroyo toad, California red-legged frog, mountainyellow-legged frog, and coast range newt. In 2005, the Monitoring Program coordinated with theU.S. Geological Survey on a stream survey protocol to assess the quality of stream habitats forthe above covered amphibian species, and to detect eggs, tadpoles, and/or adults. Selectedstreams within the Conservation Area were surveyed between May and December 2005. Arroyotoad, coast range newt, and mountain yellow-legged frog were all detected breeding in theConservation Area in 2005. The locations of surveys and amphibians detected are shown inFigure 19, Amphibian Stream Survey Locations and Detections in 2005. No California redleggedfrogs were detected in the Conservation Area in 2005. A full description of themethodology and results can be found in the individual survey reports for each species (AppendixA – RCA MSHCP Technical Reports – 2. Monitoring Program Survey Results.).The species objectives for mountain yellow-legged frog were met in 2005 by the finding oftadpoles and/or juveniles at conserved locations within the Conservation Area. The MonitoringProgram is documenting the presence of coast range newt and arroyo toad in streams throughoutthe Conservation Area and will in the future be able to determine whether the species objectivesfor these species are met. California red-legged frog has not been found in the Conservation Areain the last 2 years of survey effort by the Monitoring Program. Based on the findings of othersurveyors (i.e., Mark Jennings), this species may have been extirpated from the only site it wasknown to occupy in western Riverside County (i.e., Santa Rosa Plateau). The MonitoringProgram will continue to survey historic and new locations for California red-legged frog duringthe inventory phase.Western Riverside County MSHCP October 2006Annual Report (January 1, 2005 through December 31, 2005) 6-16
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Western Riverside CountyRegional Co
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Western Riverside CountyMULTIPLE SP
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TABLE OF CONTENTSSectionPage No.3.4
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TABLE OF CONTENTSSectionPage No.LIS
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EXECUTIVE SUMMARY• Ongoing manage
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EXECUTIVE SUMMARYfunctions as an ea
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EXECUTIVE SUMMARYArea Plan, have be
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1.0 INTRODUCTION1.0 INTRODUCTION1.1
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1.0 INTRODUCTION1.2 Reporting Requi
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1.0 INTRODUCTIONCollection of annua
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Western Riverside County MSHCP Roug
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2.0 HABITAT GAINS AND LOSSESRoughSt
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2.0 HABITAT GAINS AND LOSSESDelhi S
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2.0 HABITAT GAINS AND LOSSESWithin
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2.0 HABITAT GAINS AND LOSSESKey Veg
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2.0 HABITAT GAINS AND LOSSESWithin
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2.0 HABITAT GAINS AND LOSSESis acti
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Page 86 and 87: Figure 16. Quino Checkerspot and De
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Page 92 and 93: Figure 19. Amphibian Stream Survey
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Page 108 and 109: 7.0 REFERENCESUnited States Departm
Page 110 and 111: APPENDIX AADDITIONAL REPORTS AND IN
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