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Year-End Summary Report for the 2011 Botanical Season

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Year-End Summary Report for the 2011 Botanical Season YEAR-END SUMMARY REPORT FOR THE 2011 BOTANICAL SEASON Prepared By: Cheri Sanville Staff Botanist 1 TABLE OF CONTENTS 2011 Summary: Summary of 2011 survey season ► Page 3 Sensitive species found on GDRCo in 2011 ► Page 4 Uncommon species found on GDRCo in 2011 ► Page 4 Summary of 2011 Erythronium study ► Pages 5-9 Coastal Lagoons and Little River Botanical Management ► Page 10 Plan, 2011 Status Report Monitoring report for Howell’s montia in Salmon Creek ► Pages 11-21 2011 surveys for southern operations ► Pages 22-26 2011 surveys for northern operations ► Page 27 Supplemental Information: Cumulative vascular plant species list for all surveys 2001-2011 ► Pages 28-45 2011 GDRCo Botanical Technicians Lead Technician Bianca Hayashi Seasonal Technicians Justin Martin Lena Phelps/Borden Ben Hart Liz Kimbrough (left early) Rhiannon Korhummel (replaced Liz) 2 SUMMARY OF 2011 SURVEY SEASON WORK PERFORMED Field Season Survey Dates: 3/8/2011 – 8/31/2011 Total Number of Field Days: Approximately 125 field days Total Number of Projects: 54 Projects were reviewed THP or Project Area Full Floristic Full floristic surveys for 36 projects Surveys: 4 THPs received re-surveys of all units or portions due to habitat present and timing of initial survey in 2010 2 THPs need units re-surveyed spring 2012 due to habitat present and timing of initial survey in 2011 (MATO) Annual Work Plan project consisted of 2 miles of road survey THPs Exempt From Full Floristic 18 THPs in Coastal Lagoons and Little River BMA Survey: 4 THPs received very limited surveys focused on specific habitats Follow-up Visits: 38 follow-up CNDDB forms submitted for 10 species Total Area Assessed in 2011: 6,258 acres assessed Project area coverage: Approximately 3,814 acres surveyed *total acres surveyed is more since some areas were re-surveyed 1,923 acres exempt from full-floristic survey Number of THP units surveyed: 141 THP units were surveyed Total number of surveyors per day: 4-5 surveyors per day Total number of field survey hours: Approximately 1,206 total field survey hours in 2011 Number of projects with sensitive 14 THPs with RPR 1 or 2 taxa found in 2011 species (CA RPR 1 or 2): Number of sensitive species found 8 sensitive species found in 2011 (CA RPR 1 or 2): Number of projects with uncommon 41 THPs with RPR 3 or 4 taxa found in 2011 Species (CA RPR 3 or 4): Number of uncommon species found 11 uncommon species found in 2011 (CA RPR 3 or 4): 3 Sensitive Species (CRPR 1 and 2) Found in 2011 Total # of # of Projects in Populations/ Projects GDRCo GDRCo BotID#s Scientific Name Common Name with code Database documented Detection with on GDRCo in 2011 Presence thru 2011 Arctostaphylos canescens Sonoma manzanita 1. ARCASO 1 4 5 ssp. sonomensis 2. COLA Coptis laciniata Oregon goldthread 4 25 57 3. ERRE Erythronium revolutum coast fawn lily 6 40 137 4. MOHO Montia howellii Howell’s montia 3 20 69 5. MOUN Monotropa uniflora Indian-pipe 2 48 234 Packera bolanderi var. 6. PABO seacoast ragwort 1 4 7 bolanderi 7. PICA Piperia candida white-flowered piperia 1 8 10 Sidalcea malviflora ssp. 8. SIMAPA Siskiyou checkerbloom 1 2 4 patula Uncommon Species (CRPR 3 and 4) Found in 2011 # of Total # of Projects Projects in Populations/ GDRCo Scientific Name Common Name with GDRCo BotID#s code Detection DB with documented in 2011 Presence on GDRCo 1. LIRU Lilium rubescens redwood lily 1 4 7 2. LICO Listera cordata heart-leaved twayblade 18 241 424 3. LYCL Lycopodium clavatum running-pine 10 224 759 4. MICAU Mitella caulescens leafy-stemmed mitrewort 11 84 156 5. OXSU Oxalis suksdorfii Suksdorf’s wood-sorrel 1 12 16 6. PICAL Pityopus californicus California pinefoot 5 120 178 7. PLRE Pleuropogon refractus nodding semaphore grass 8 52 81 8. RILA Ribes laxiflorum trailing black currant 10 90 149 9. SIMA Sidalcea malachroides maple-leaved checkerbloom 5 40 70 10. Tiarella trifoliata var. TITRTR sugar scoop; lace flower 2 17 17 trifoliata 11. WYLO Wyethia longicaulis Humboldt County wyethia 1 1 1 4 Summary of 2011 Erythronium study RARE ERYTHRONIUM SPECIES ON GREEN DIAMOND RESOURCE COMPANY (GDRCO) PROPERTY: ADDRESSING PROBLEMATIC CHARACTERISTICS PRESENT IN NORTHWESTERN CALIFORNIA POPULATIONS SANVILLE, C., HAYASHI, B. Green Diamond Resource Company, PO Box 68, Korbel, CA 95550 Abstract for talk given at the January 2012 CNPS conference: Two Erythronium (fawn lily) species encountered on GDRCo property with a California Rare Plant Rank (RPR) of 2.2 are Erythronium revolutum and E. oregonum. Although some populations exhibit diagnostic characteristics, others exhibit traits intermediate between the species and/or between the endemic but not rare E. californicum. While E. oregonum has white tepals, tendency towards albinism in E. revolutum becomes more pronounced toward the south end of the range in coastal northern California (Applegate, 1935). There are few element occurrences (EOs) of E. oregonum rated as good or better in the California Natural Diversity Database (CNDDB) however E. revolutum is close to the threshold for status review. Protection measures will no longer be required if the RPR is adjusted downward. Because of the difficult nature of making a conclusive identification, it is likely that some of the occurrences of E. revolutum are E. oregonum. There are overlapping EOs of both species and considerable uncertainty regarding identification. The identity of these species needs to be resolved prior to a status review. GDRCo botanists collected flower and leaf samples from seventeen Erythronium populations in 2011. Flowers were disassembled and used to conduct a morphometric analysis focused on diagnostic characters, following methods used by others investigating Erythronium species. Leaf samples were dried in silica and will be used in a complimentary genetic analysis. The authors hope this initial investigation garners interest by others familiar with these species and a collaborative effort can be made to assess all known populations in California. All known populations of Erythronium species present on GDRCo property were summarized and reviewed as potential collection sites. Sites were chosen based on population size of mature individuals to minimize impact. No more than 20% of flowering individuals were considered eligible for collection at any one site. During the spring of 2011, 15 flowers and 30 leaf tissue samples per population were collected at 17 sites (see Map on page 7). 15 of the 30 leaf tissue samples came from the same plants from which the flowers were collected. Collections were made from individuals spaced at least 1 m apart. Flowers were disassembled and taped onto index cards for later morphometric measurements. Color values were measured using fresh material and values were taken using Munsell color charts for plant tissues. A total of 30 morphological characters were recorded for each flower. Leaf tissue samples were preserved in silica gel for later genetic analysis. The methods employed in this study closely follow those used by Dr. Geraldine Allen in her work on Erythronium species in the Pacific Northwest. CHARACTERISTICS FOR MORPHOMETRIC ANALYSIS 1. Tepal length (mm) 2. Inner tepal width (mm) 3. Inner tepal length/width ratio 4. Inner tepal base to maximum width 5. Inner tepal shape (distance from base to widest point divided by total length) 6. Inner tepal yellow zone (mm) 7. Inner tepal yellow proportion (tepal yellow zone divided by total length) 8. Outer tepal width (mm) 9. Outer tepal length/width ratio 10. Outer tepal base to maximum width 11. Outer tepal shape (distance from base to widest point divided by total length) 5 12. Outer tepal yellow zone (mm) 13. Outer tepal yellow proportion (tepal yellow zone divided by total length) 14. Filament length (mm) 15. Filament width (mm) 16. Anther length (mm) 17. Anther to filament length ratio 18. Style length (mm) 19. Stigma branch length (mm) 20. Ovary length (mm) 21. Tepal color (Munsell) 22. Tepal back-side base color (Munsell) 23. Color of yellow banding on tepals (Munsell) 24. Presence or absence of red banding on tepals 25. Anther color (Munsell) 26. Style color (Munsell) 27. Scape color (Munsell) 28. Filament color (Munsell) 29. Ovary color (Munsell) 30. Anther position relative to the style (appressed or spreading) Based upon the morphological features observed in the field, the 17 sites were assigned to the following taxonomic groups. The objective of this study is to determine whether or not these taxonomic assignments are correct. 6 Map of Erythronium study area 7 West Inc. conducted a hierarchical agglomerative cluster analysis, using Ward’s method as the similarity index. Critical value for distance (Euclidean) between clusters was calculated. The suggested number of clusters was calculated based on this critical value. All analyses were conducted in R. The most diagnostic characters are those that are used to separate the species in dichotomous keys; tepal color, stigma length, filament width, anther length and anther color. The graphs below illustrate the results when only the most diagnostic variables were included in the analysis and when all of the morphological characters were included. There was considerable taxonomic overlap between clusters which indicates that the genetic analysis will be absolutely necessary to definitively assign sites to taxonomic groups. It appears that more than one site contains individuals of hybrid origin. 8 West Inc. also conducted a Principal Components Analysis (PCA) using all of morphometric variables as well as a subset of the most diagnostic characters; tepal color, stigma length, filament width, anther length and anther color and tepal length and width. The graph below plots the individual flower scores on the first two axes (29.75 + 20.56 = 50.31% of the variance) at each of the 17 sites when the subset of variables was used in the analysis.
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