Vegetation Management Solutions 875 Mitchell Avenue Oroville, CA 95965 (530)532-7454 A Forest Service Enterprise Fax. (530)532-1210 ______________________________________________________________________________________________________ Herger-Feinstein Quincy Library Group Botany Monitoring Report - 2008 Prepared January 20, 2009 by Colin Dillingham, VMS Enterprise Team Ecologist with input from Kyle Merriam and Marti Aitken, Province Ecologists; Allison Sanger, Lassen National Forest; Susan Urie, Tahoe National Forest; Jim Belsher-Howe, Michelle Coppoletta, Michael Friend, Lynée Crawford and Chris Christofferson, Plumas National Forest. PURPOSE The purpose of this report is to document findings of the cumulative monitoring efforts accomplished from 2002 through 2008 by the Lassen, Plumas and Tahoe National Forest botanists. Monitoring in 2008 included both Implementation and Effectiveness monitoring. Implementation monitoring of units treated in 2007 was conducted to determine if recommended mitigations and treatments were accomplished as planned. Effectiveness monitoring was completed to determine what response Threatened, Endangered or Sensitive (TES) or noxious weed species had to mitigations and treatments or if new occurrences were found in project areas after treatment. The intent of the monitoring was to identify what worked, what needs improvement for future projects, and to provide documentation for internal Forest Service review as well as to the public. This annual monitoring is required under the Herger-Feinstein Quincy Library Group Forest Recovery Act (HFQLG). METHODS The monitoring methodology described in the May 10, 2004 version of the HFQLG Monitoring Plan was used for implementation monitoring. Species specific monitoring plans have been developed for effectiveness monitoring. The following questions are addressed. Implementation Monitoring Questions Question 7: Were Threatened, Endangered and Sensitive (TES) plants surveyed and protected? Question 8: Were noxious weed introductions prevented and existing infestations suppressed? Effectiveness Monitoring Questions Question 28: How do TES plant species respond to resource management activities? Did new occurrences of TES plant species occur during or following project implementation? Question 29: Were existing infestations of noxious weeds eliminated or contained? Question 30: Were all new infestations of noxious weeds eliminated or did some become established? United States Department of Agriculture z Page 2 January 21, 2009 Question 31: Did new infestations of noxious weeds occur during or following project implementation? Sample Sizes Linnea Hanson, Plumas National Forest Botanist, working with PSW Statistician in 1999, came up with a TES Plant Implementation Monitoring scheme to achieve 90% compliance rate and 3.4 % precision level using a sample size of 300 units in pool # 2 (to answer questions 7 and 8). The sampling scheme is filed on the K drive in the plants folder under QLG monitoring. Linnea suggested that the sample size should be small enough so that we can implement the program. An annual sample pool size of 60 units was determined (30 for TES and 30 for weeds, see below for more information). Statistical analyses of the monitoring data have been limited to effectiveness monitoring results. We have evaluated observational data to formulate general assessments of HFQLG Implementation and Effectiveness and to provide feedback to the public and ourselves. Sample Pools The 2008 HFQLG Botany Monitoring program was substantial due to the inclusion of both implementation and effectiveness monitoring questions. In 2008, four sample pools were developed to answer both the implementation monitoring questions as well as the effectiveness monitoring questions. Each sample pool had up to 30 project treatment units included. Table 1. Number of HFQLG project sites (i.e. timber sale harvest units) sampled to answer each monitoring question on an annual basis. The total number of units does not count units sampled in separate years to answer the same question. Monitoring Question 7 8 28a* 28b* 29/30* 31* 2002 9 1 - - - - 2003 29 5 - 5 - 5 2004 26 11 - 1 8 1 2005 31 17 31 23 12 23 2006 28 9 7 5 8 5 2007 30 22 12 7 17 7 2008 16 27 6 47 16 47 Total Number Units Sampled 166 92 56 88 61 88 * - Number of units sampled for effectiveness monitoring only includes post-treatment sampling. Additional pre-treatment sampling efforts have been completed and will be included in the sample pool after post-treatment sampling is completed. Question 7 – Were TES plants surveyed and protected? Our sample pool to answer this question was developed by reviewing the entire list of units treated in 2007 and determining which of these treated units had mitigations for TES plants. The HFQLG area botanists made a list of potential units. Some of the units with TES control areas were not accessible during the 2008 field season because of wildfires; and only 16 were sampled under the HFQLG monitoring protocol in 2007. z Page 3 January 21, 2009 Question 8 – Were noxious weed introductions prevented and existing infestations suppressed? The sample pool to answer this question was developed in a similar method to Question 7; by reviewing the entire list of units treated in 2007 and determining which of these treated units had mitigations for noxious weeds. There were 27 units with noxious weed control areas/mitigations; and all 27 units were sampled under the protocol. Question 28a – How do TES plant species respond to resource management activities? In April 20086 the botanists and HFQLG Implementation Team met to revise how Question 28 and 29 could be better answered. In 2005, all TES implementation-monitoring (Question 7) units were included in the sample pool to answer the TES effectiveness question. Much of the data collected in 2005 did not appear to as valuable to the botany group compared to what could be collected with a different protocol. The group decided to focus on units where we could get pre-treatment data to allow for a quantitative assessment of treatment effects. The group dropped approximately 60 units without good pre-treatment monitoring data that were on the schedule to monitor in the next two years. Plans were made to add approximately the same number of units into the pool. Pre-treatment data was collected for eight species in 2008 in over 20 plots/line intercept arrays. Post-treatment effects were evaluated in 6 HFQLG treatment units in 2008. Question 28b - Did new occurrences of TES species become established during or following project implementation? Data from the Timber Stand Structure (TSSM) monitoring were used to answer this question. Sixty-nine randomly selected units that previously didn’t have TES plants occurrences were examined after harvest to determine if any new TES plant occurrences had occurred in response to management activities. Question 29/30 – Were existing infestations of noxious weeds eliminated or contained? Were all new infestations of noxious weeds eliminated or did some become established? Units that had previous noxious weed implementation monitoring and/or units that had treatments to noxious weed species were included in the sample pool to answer questions 29 and 30. Sixteen populations were monitored in 2008. Question 31 – Did new infestations of noxious weeds occur during or following project implementation? Data from the ongoing Treated Stand Structure Monitoring (TSSM) was used to answer this question. Forty-seven additional units (69 total TSSM units) were monitored for post-treatment data. Data on shrub, grass and forb cover were recorded at 15 sampling plots per unit during TSSM field monitoring. TSSM field data collection protocols specify that percent cover data for shrubs, grasses and forbs are rounded to the nearest 10%, with 10% being the lowest level recorded. Species with substantially less than 10% cover in a sampling plot are not recorded in the plot data. Documentation of noxious weed occurrences followed this same protocol. Where plot percent cover of noxious weeds was less than 10% cover, field forms often but inconsistently included informal notes regarding the occurrence. These informal notes were not used to answer this question for the 2008 report. Plot-level percent cover data for each species were divided by the total number of plots in a unit to calculate a weighted percent cover. The weighted percent cover data were then totaled for each species at each unit. These calculations gave an average percent cover per species per unit for both the pre- and post- treatment monitoring data. z Page 4 January 21, 2009 RESULTS Implementation Monitoring Questions Question 7: Were Threatened, Endangered and Sensitive (TES) plants surveyed and protected? The specific questions that were addressed included the following: 1) Were protection measures adequately documented and flagged on the ground, 2) were control areas printed on contract maps and 3) Did protection measures get implemented at plant occurrences? Table 2 below presents a summary of the data collected to address question 2) “Were the protection measures implemented at the plant occurrences?” which is considered the most critical element. Summary tables for individual unit monitoring during the 2008 sampling effort are presented in Appendix 1. Table 2. Monitoring results of botany control areas in the HFQLG Pilot Project Number Control Areas Percent of Control Areas Year monitored successfully protected 2002 9 89% 2003 29 59% 2004 26 88% 2005 31 77% 2006 28 100% 2007 30 93% 2008 16 81% Summary, Question 7 Out of the 16 TES protection/control areas monitored in 2008, 13 (81%) were protected as planned. The minimum level of protection considered successful would be to have 90% of control areas protected as planned. Therefore, this objective was not met. Two of 10 sites on the Mt Hough Ranger District were not protected, and 1 of 5 sites on the Beckwourth Ranger District wasn’t protected. Control areas were mapped and flagged, but problems with protection occurred during implementation. All of the three compromised control areas appeared to have been mapped on the timber sale and contract maps and FS contract administrators were aware of the sensitive plant sites. One of the sites on the Mt Hough district was flagged and mapped correctly, understood by the sale administrators as a control area. It was mostly largely avoided, however it appears a skidder drove through the control area accidentally during one pass. Suitable sites to answer this question were not available on the Lassen NF or the Feather River RD of the Plumas NF and only one site (which was protected) was available on the Sierraville RD of the Tahoe NF. Communication between botanists and sale administrators appears to be improving, but unfortunately, there were still three failures. Fortunately, the breaches to plant control areas were limited in extent and impacts to sensitive plants were relatively minor (see Appendix 1, Question 7 tables). For example three hand piles were burned in a sticky Pyrrocoma population in the Mabie project area, but only 2% of the control area was impacted. There is still improvement needed in tracking the flagging of control areas. Continued coordination between the timber sale and service contract administrators and botanists needs to occur to ensure control areas are established, mapped on timber sale area and service contract maps, and clearly understood by both botanists and timber sale and service contract administrators. Lessons learned z Page 5 January 21, 2009 Botanists need to be sure that the control areas are flagged on the ground immediately prior to treatment. Several of the sites were not adequately flagged on the ground during post-treatment evaluation. Consideration should be made to improve the marking of control areas in high risk areas (perhaps use plastic fencing similar to California Department of Transportation control area techniques). Continuing communication needs to be assured between timber sale and service contract administrators and botanists so that control areas are understood. Ensure follow-up treatments, such as burning, are well coordinated to protect control areas. Control area boundaries should be sent to implementation personnel as GIS files to ensure these areas are clearly and accurately mapped on project and sale area maps. Control area tracking sheets (Appendix 2) should be used for all projects with botany control areas. Question 8: Were noxious weed introductions prevented and existing infestations suppressed? Monitoring of the implementation of noxious weed mitigation measures was conducted to determine if provisions for control of noxious weeds occurred. Summary results are shown in Table 3 below. The results from unit specific monitoring conducted in 2007 are attached in Appendix 1. Previous years detailed unit monitoring results are shown in corresponding annual reports. Table 3. Monitoring results of noxious weed control measures in the HFQLG Pilot Project Number of Weed Percent of Weed Percent of Projects Sites with treatment Sites with control Year with documented or avoidance measures objectives in sample Equipment Cleaning implemented pool 2002 1 0% 66% 2003 5 100% 100% 2004 11 55% 100% 2005 17 88% 93% 2006 9 100% 100% 2007 22 91% 100% 2008 27 89% 85% Administrators of timber sale and service contracts were contacted and questioned as to whether the contract clause 6.35 (equipment cleaned and weed free) was implemented. Summary, Question 8 There were 27 sites with weeds evaluated in 2008. Twenty-four (89% of the 27 sites) of the occurrences were either treated or avoided during management activities and the remaining three were neither fully treated nor avoided during management implementation. Although medusahead (Taeniatherum caput-medusae) is a noxious weed, there are currently no effective eradication methods for large infestations of this species, and large infestations are not being treated. Flag and avoidance is used to prevent the spread of medusahead into HFQLG project areas. However, in two units monitored, medusahead was not flagged, and the occurrence appears to have expanded since HFQLG treatment. On the Lassen NF, 6 of 9 Klamathweed (Hypericum perforatum) populations seem to have been eliminated with hand pulling treatment. Careful annual hand-pulling treatment of the musk thistle (Carduus nutans) populations on the Sierraville Ranger District appears to eliminate small populations. The key to successful musk thistle control is to prevent seed production, which is the only form of reproduction. Increasing intensity of control appears to be warranted. Equipment Cleaning Documentation z Page 6 January 21, 2009 The HFQLG project area has done well in implementing the contract specifications of equipment cleaning. Equipment cleaning documentation was received for nearly all of the projects reviewed. However, no equipment cleaning documentation was found for the Young Pine project on the Almanor Ranger District, the Deep Red project on the Hat Creek Ranger District, or the Leftover Timber Sale project on the Sierraville Ranger District. There were two landings on the Sierraville Ranger District found to have new musk thistle populations after the landings were tilled to reduce compaction. The equipment used to till the landings was not washed, so may have been a source for the weeds. This same piece of equipment was also used on a third interior landing (away from other vectors of seed dispersal) and it did not have a new musk thistle infestations. The weed seeds may have come from other vectors, such as public forest visitor vehicles. Lessons learned Aggressive action prior to and during project implementation has been successful in eradicating small populations of noxious weeds as well as preventing new occurrences. Less success has been realized in larger populations or species more difficult to eradicate. Generally, but not universally, the treatments designed to reduce noxious weeds appear to be preventing the occurrences from expanding. Additional efforts are needed to reduce the potential for invasion of both musk thistle and medusahead. Effectiveness Monitoring Questions Question 28: How do TES plant species respond to resource management activities? Did new occurrences of TES plant species occur during or following project implementation? Table 4 presents a summary of TES effectiveness monitoring for the entire HFQLG Pilot Project area. Effectiveness monitoring was initiated in 2005, although methodology changed in 2006. Tables that include specific 2008 results for Question 28 are included in Appendix 1. Previous years efforts are summarized in corresponding annual reports. Table 4. Monitoring results of TES effectiveness monitoring in the HFQLG Pilot Project Percent of monitored populations that had neutral Number of treatment Year units with TES plant or positive responses to monitoring sites HFQLG vegetation 1 management activities 2 2005 31 97% 2006 7 86% 2007 12 75% 2008 6 83% 1. Results are preliminary and may include both anecdotal and statistically significant changes. Further data collection and analysis at the species level will be required before findings will be considered final. 2. Results presented for 2005 include monitoring of populations in protected control areas (i.e. many of the 2005 monitored sites were not actually treated by HFQLG vegetation management activities, rather the monitoring was conducted to ensure the populations within protected control areas were still present after implementation of the surrounding vegetation management activities). Summary of Question 28, part A: How do TES plant species respond to resource management activities? Only the Mt Hough River Ranger Districts had sufficient pre-treatment data collected in 2008 to answer the question, “How do TES plant species respond to resource management activities?” z Page 7 January 21, 2009 Several responses by various sensitive and special interest plant species were recorded and are included in Appendices 1 and 3. See Lessons Learned, below, for more details. Question 28, part B: Did new occurrences of TES plant species occur during or following project implementation? Data from the ongoing Treated Stand Structure monitoring (TSSM) was used to answer this question. As of the end of the 2008 monitoring season one-year post-treatment data were available for a total of 69 units, and 6 of these units also had five-year post-treatment data. These 69 units had been randomly selected according to TSSM monitoring protocol. Sampling plots were established and pretreatment data were recorded prior to treatment application. Post-treatment monitoring data was collected one year after treatment at all 69 units, and at five years post-treatment for six of the 69 units. In addition, a unique set of 19 units were monitored in 2005 and that data was analyzed in the 2005 botany monitoring report. No new occurrences of TES plants were located following project implementation. Lessons Learned The following short summaries were taken from more extensive monitoring results. Monitoring reports for the Quincy Lupine and Follett’s wild mint are attached as appendix 3. Please refer to the tables in Appendix 1 to determine which units were monitored and for limited data presentation. Further data collection and analysis is needed. The following summaries are considered preliminary. Preliminary monitoring data suggest that Quincy lupine can tolerate group selection treatment activities. The presence of Quincy lupine individuals within the treatment plot suggests that this species is tolerant of high levels of soil disturbance and forest removal. Additional monitoring should be conducted to confirm these preliminary findings. Cover of closed-lip Penstemon, Penstemon personatus, following mechanical thinning and group selection treatments had little change. Statistical analysis is forthcoming. The fact that the two group selection treatments had closed-lip Penstemon one year after treatment in densities relatively similar to pre-treatment conditions is remarkable. Follow-up monitoring and further data analysis in the next few years will be educational. From the data collected in the Follett’s wild mint, Monardella follettii, study in 2008, it is difficult to state with certainty the effects of group selection treatments on Follett’s wild mint abundance. The presence of Follett’s wild mint individuals within the treatment plots suggests that the species is able to tolerate a fair amount of disturbance; Follett’s wild mint plants were found (albeit in much lower abundance) in areas that were scraped of almost all of the duff and vegetation (i.e. skid trails) and under woody debris. Many of the Follett’s wild mint within the treatment area were noted to be robust with multiple flowering branches (see full report in Appendix 3). Question 29: Were existing infestations of noxious weeds eliminated or contained? Question 30: Were all new infestations of noxious weeds eliminated or did some become established? Unit specific treatment effectiveness monitoring tables for 2008 surveys are presented in Appendix 1. z Page 8 January 21, 2009 Table 5 presents a summary of weed effectiveness monitoring for the entire HFQLG Pilot Project area. Effectiveness monitoring was initiated in 2004. Table 5. Monitoring results of weed effectiveness sites in the HFQLG Pilot Project Percent of monitored populations that did not exhibit increase in weed Number of treatment populations in response to Year units with weed HFQLG vegetation monitoring sites management in concert with weed eradication measures or site avoidance* 2004 8 63% 2005 12 100% 2006 8 63% 2007 17 94% 2008 16 75% * - Results are preliminary and may include both anecdotal and statistically significant changes. Further data collection and analysis at the species level will be required before findings will be considered final. Summary Questions 29 and 30 One population of Dalmatian toadflax on the Almanor Ranger District is not responding to once-annual hand pulling treatments. Increased control efforts are warranted. Medusahead populations are not adequately being avoided and are spreading along roads and cattle trails. The current attempt at avoidance without parallel treatment strategy is not effective. Annual hand pulling treatment of Klamathweed appears to be effective in many situations. Larger occurrences likely need more than once-annual visits to ensure all seed production is eliminated. Erratic, less than annual hand pulling treatments, allow populations to expand. Intensive hand control is an effective technique for controlling or eradicating small musk thistle (Carduus nutans) populations on the Sierraville Ranger District. A more aggressive musk thistle eradication effort may be warranted in areas with larger populations. The key to successful musk thistle control is to prevent seed production, which is the only form of reproduction. . Lessons Learned Aggressive action prior to and through project implementation has generally been successful in eradicating small populations of noxious weeds as well as preventing new occurrences. Less success has been realized in larger populations or species more difficult to eradicate. These efforts appear to be limiting noxious weed spread on the Lassen, Plumas and Tahoe National Forests. Additional efforts are needed particularly with Medusahead, Dalmatian toadflax, musk thistle and yellow starthistle. Question 31: Did new infestations of noxious weeds occur during or following project implementation? As of the end of 2008, sixty-nine units have been monitored for noxious weed introductions as part of the Treated Stand Structure Monitoring (TSSM) protocol. Prior to treatment, only one unit had an invasive weed population detectable with the protocol. Weighted percent cover for this cheat grass population was less than one percent (0.67%). z Page 9 January 21, 2009 Sixteen (23%) of the units had detectable invasive weed populations after treatment (Table 1). Ten of these units were on the Lassen National Forest; six were on the Plumas National Forest. None of the detections occurred on the Tahoe National Forest. However, two landings on the Leftover Timber Sale Area, Sierraville RD were found to have new populations of musk thistle, but these units were not part of the Treated Stand Structure monitoring sample pool and are not included for overall percentages. Cheat grass was the species detected in 81% of the infested Treated Stand Structure Monitoring (TSSM) plots. Generally, the occurrence size correlates positively with years post-treatment. Cheat grass populations seem to be expanding once established post-treatment. Cheat grass is an undesirable, aggressive non-native species and is monitored by HFQLG Pilot Project area botanists. There is a substantial amount of published research demonstrating that cheat grass infestations can have serious negative impacts on native plant populations, wildlife habitat value and ecosystem function, and have the capacity to alter fire behavior and frequency. Cheat grass typically increases following disturbances to soils, canopy cover and native plant populations. This species is a concern and the monitoring data through 2008 appear to show that HFQLG treatments are providing suitable habitat and disturbances for the species to expand in extent and cover. For the first time, bull thistle was detected in the plots and occurred in three of the post-treatment plots. Two of these plots were located on the Lassen NF and one was located on the Plumas NF. Last year bull thistle was only noted in the informal field notes. Bull thistle is an invasive non-native species that out-competes native plant species for water, nutrients, and space, and its presence in hay decreases feeding values and lowers market price. Although cheat grass and bull thistle were the only invasive weed species recorded in the plots, informal field notes indicate a low level presence of yellow starthistle, medusahead (grass) and Scotch broom (shrub) at some of the monitoring units as well as musk thistle outside of the randomly located TSSM plots. z Page 10 January 21, 2009 Table 1. – Monitoring units with new occurrences of noxious weeds. Percent cover values are the average cover for that species across the entire unit area sampled. District Lassen NF Eagle Lake Project Name Treatment1 Harvey T Southside T Blacks Ridge T North Coble T GS Hat Creek T Plumas NF Pittville 1 Beckwourth Mt. Hough GS, UB GS, T Last Chance T Red Clover T Antelope Border T Waters M Invasives? Cheat grass Bull thistle Cheat grass Cheat grass Cheat grass Cheat grass Cheat grass Cheat grass Cheat grass Cheat grass Cheat grass Bull thistle T = thin, GS = group select, M = Masticate, and UB = underburn. Unit # Pre Post Years Post 60 0 0.67 1 14 18 0 0 3.33 2.00 3 2 16 0 3.33 5 5 8 0.67 0 2.66 0.67 2-3 2 27068 0 6.00 1 29166 0 3.33 1 29181 0 1.33 1 30115 0 0.67 1 10 13 0 0 1.33 0.67 1 1 10 0 0.67 1 13B 15A 8D 0 0 0 7.33 2.67 0.07 5 5 5 z Page 11 January 21, 2009 Key Findings Question 7 – Were TES plants surveyed and protected? Out of the 16 TES protection/control areas monitored in 2008, 13 (81%) were protected as planned. The minimum level of protection considered successful would be to have 90% of control areas protected as planned. Therefore, this objective was not met. Two of 10 sites on the Mt Hough Ranger District were not protected, and 1 of 5 sites on the Beckwourth Ranger District wasn’t protected. Control areas were mapped and flagged, but problems with protection occurred during implementation. There is still room for improvement, so continued improved communication between botanists and sale administrators is needed. There is still improvement needed in tracking the flagging of control areas and in quality of marking control areas. Question 8: Were noxious weed introductions prevented and existing infestations suppressed? There were 27 sites with weeds evaluated in 2008. Twenty-four (89% of the 27 sites) of the occurrences were either treated or avoided during management activities and the remaining three were neither fully treated nor avoided during management implementation. Although medusahead (Taeniatherum caput-medusae) is a noxious weed, there are currently no effective eradication methods for large infestations of this species, and large infestations are not being treated. Flag and avoidance is used to prevent the spread of medusahead into HFQLG project areas. However, in two units monitored, medusahead was not flagged, and the occurrence appears to have expanded since HFQLG treatment. On the Lassen NF, 6 of 9 Klamathweed (Hypericum perforatum) populations seem to have been eliminated with hand pulling treatment. Equipment Cleaning Documentation The HFQLG project area has done well in implementing the contract specifications of equipment cleaning. Equipment cleaning documentation was received for nearly all of the projects reviewed. However, no equipment cleaning documentation was found for the Young Pine project on the Almanor Ranger District, the Deep Red project on the Hat Creek Ranger District, or the Leftover Timber Sale project on the Sierraville Ranger District. There were two landings on the Sierraville Ranger District found to have new musk thistle populations after the landings were tilled to reduce compaction. The equipment used to till the landings was not washed, so may have been a source for the weeds. This same piece of equipment was also used on a third interior landing (away from other vectors of seed dispersal) and it did not have a new musk thistle infestations. The weed seeds may have come from other vectors, such as public forest visitor vehicles. Question 28a: How do TES plant species respond to resource management activities? Preliminary monitoring data suggest that Quincy lupine can tolerate group selection treatment activities. The presence of Quincy lupine individuals within the treatment plot suggests that this species is tolerant of high levels of soil disturbance and forest removal. Percent cover of closed-lip Penstemon, Penstemon personatus, following mechanical thinning and group selection treatments had little change. The fact that the two group selection treatments had closed-lip Penstemon one year after treatment in densities relatively similar to pre-treatment conditions is remarkable. From the data collected in the Follett’s wild mint study in 2008, it is difficult to state with certainty the effects of group selection treatments on Follett’s wild mint abundance. The presence of Follett’s wild mint individuals within the treatment plots suggests that the species is able to tolerate a fair amount of disturbance; Follett’s wild mint plants were found (albeit in much lower abundance) in areas that were scraped of almost all of the duff and vegetation (i.e. skid trails) and under woody debris. z Page 12 January 21, 2009 Question 28b: Did new occurrences of TES plant species occur during or following project implementation? No new occurrences of TES plant species were found in 69 monitored units. Question 29 : Were existing infestations of noxious weeds eliminated or contained? and Question 30: Were all new infestations of noxious weeds eliminated or did some become established? Aggressive action prior to and through project implementation has generally been successful in eradicating small populations of noxious weeds as well as preventing new occurrences. Less success has been realized in larger populations or species more difficult to eradicate. These efforts appear to be limiting noxious weed spread on the Lassen, Plumas and Tahoe National Forests. Additional efforts are needed particularly with Medusahead, Dalmatian toadflax, musk thistle and yellow starthistle. Question 31: Did new infestations of noxious weeds occur during or following project implementation? Sixteen of 69 units monitored had substantial new populations of invasive species one to five years after treatment, and populations seem to expand once established. Neither cheat grass nor bull thistle are currently designated as noxious species on either the federal or California noxious weed lists. However, both species are highly invasive and potentially threatened ecosystem health and function. z Page 13 January 21, 2009 Appendix 1. The following tables represent summaries of all available data collected in 2008 for questions 7, 8, 28, 29 and 30. Implementation Monitoring Questions Question 7: Were Threatened, Endangered and Sensitive (TES) plants surveyed and protected? Plumas NF, Mt Hough RD Sale Name Species Occurrence Occurrence Number protected? Snake 4 Clustered CYFA 073 Lady’s slipper Yes Snake 4 Clustered CYFA 073 Lady’s slipper Yes Snake 3 Quincy Lupine LUDA 023DD No Snake 3 Quincy Lupine LUDA 023F No Snake 6 Yes Plumas Aster OREL008 Silver 10 Quincy Lupine LUDA 028A Yes Silver 10 Quincy Lupine LUDA 028A Yes Silver 10 Quincy Lupine LUDA 028A Yes Silver 9 Yes Quincy Lupine LUDA 118 Silver 11 Quincy Lupine LUDA 075H Yes Comments (CA = Control Area, the area with prohibited activities) Year of Implementation No disturbance within the flagged CA. There is evidence of underburning and mechanical thinning in surrounding stand. mech thin 2007 No disturbance within the flagged CA. There is evidence of mech thin 2007 underburning and mechanical thinning in surrounding stand. There is a single skid trail that runs right through the occurrence and evidence of mechanical treatment throughout CA. CA was clearly marked and mech thin 2007 tags/flagging were still visible. This resulted in minor impacts to less than 50% of the control area. Quincy Lupine is still present post project. There are large log decks and a temp road in the center of the mapped occurrence. No flagging or CA tags mech thin 2007 present, but site was mapped on Sale Area map. No disturbance within the CA mech thin 2007 No disturbance within CA. Flagging evident and CA tags visible. Evidence mech thin 2007 of mechanical treatment in the surrounding stand. No treatments occurred in the surrounding stand. CA is flagged and mech thin 2007 visible. No treatments occurred in the surrounding stand. CA is flagged and mech thin 2007 visible. 95% or more of the control area protected, although a few small trees mech thin 2007 fell across one edge of flag line with no apparent impacts to plants or habitat. No disturbance within CA. Flagging and mech thin 2007 CA tags present. Disturbance surrounding CA. z Page 14 January 21, 2009 Plumas NF, Beckwourth RD Sale Name Species Occurrence Occurrence Number protected? Sticky Mabie 134 PYLU_038 Pyrrocoma No Trifolium TRLE2_035 lemmonii Yes Mabie 24 Comments Three hand piles constructed and burned inside control area which prohibited this activity. Approximately 2% of control area impacted. Flagging mostly gone with some remnants barely visible. All plants protected. Old Sloat 3 Quincy Lupine 007B Yes No impacts to control area Old Sloat 3 Quincy Lupine 007M Yes No impacts to control area Old Sloat 3 Quincy Lupine 007O Yes No impacts to control area Year of Implementation pile burning 2007 Pile burning 2007 Mechanically thinned and burned 2007 Mechanically thinned and burned 2007 Mechanically thinned and burned 2007 Tahoe NF, Sierraville RD Sale Name Species Occurrence Occurrence Number protected? Masticonda Sticky PYLU-TNF6851002 Pyrrocoma 07 Yes Year of Comments Implementation Bitterbrush was masticated. No equipment mastication entered control area (Stream Zone) where 2007 Pyrrocoma is present. z Page 15 January 21, 2009 Question 8: Were noxious weed introductions prevented and existing infestations suppressed? Lassen NF, Almanor RD Sale Name Occurrence treated to protocol? Comments 40 No Records indicate erratic treatments since 2003. Not monitored in 2007 and population increasing. Partially treated in 2008 18 Yes Plants pulled and removed each year 2005 - 2008 Occurrence treated to protocol? Comments Occur. Number Species Fox Farm Klamathweed DFPZ Young Klamathweed Pine Lassen NF, Hat Creek RD Sale Name Species Occur. Number Big Jacks Medusahead 28 No Site is in the road bed and seed heads are being spread along the road Chutes Klamathweed 34 Yes No plants found since treatment in 2005 Chutes Klamathweed 46a Yes Pulled and removed annually from 2002 to 2008 Chutes Klamathweed 46b Yes Pulled and removed annually from 2002 to 2008 Chutes Klamathweed 53a Yes No plants found since treatment in 2005 Chutes Klamathweed 53b Yes No plants found since treatment in 2005 Chutes Klamathweed 53c Yes North Coble Medusahead 40 No No plants found since treatment in 2005 Site is on road shoulder and shows signs of seed spread from vehicles and livestock traffic. No evidence of flagging or avoidance during project. Cabin Klamathweed 26 Yes Cabin Klamathweed 27 Yes No plants found since treatment in 2003. Plants pulled and removed in 2001, 2003-2005, 2007 and 2008 Cabin Klamathweed 44 Yes No plants found since treatment in 2002. Tahoe NF, Sierraville RD Sale Name Species Musk Beak 70 thistle Occurrence Number Occurrence treated to protocol? 8CN130 Yes Comments One plant found and pulled before seed set in 2008 z Page 16 Beak 71 Beak 72 Beak 66x Toe 3 Toe 38 Claw 22 Claw 57 Claw 58 Claw 59 Claw 60 Claw 85x Claw 107 Claw 205 January 21, 2009 Musk thistle Musk thistle Musk thistle Musk Thistle Musk Thistle Musk Thistle Musk Thistle Musk Thistle Musk Thistle Musk Thistle Musk Thistle Musk Thistle Musk Thistle Yes No musk thistle Yes No weeds Yes No weeds Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes B rated weeds only, not treated (bull thistle and woolly mullein) B rated weeds only, not treated (bull thistle and woolly mullein) B rated weeds only, not treated (bull thistle and woolly mullein) B rated weeds only, not treated (bull thistle and woolly mullein) 10 musk thistle plants found and pulled before seed set. B rated weeds only, not treated (bull thistle and woolly mullein) No weeds B rated weeds only, not treated (bull thistle and woolly mullein) B rated weeds only, not treated (bull thistle and woolly mullein) B rated weeds only, not treated (bull thistle and woolly mullein) z Page 17 January 21, 2009 Question 28a: How do TES plant species respond to resource management activities? Plumas NF, Mt Hough RD Treatment Year Effectiveness monitoring results 2008 BACI - Before After Meadow Control Impact Follett’s Wild 8 permanent plots: 3 Valley Units 38 Mint controls and 5 and 46 treatment plots Group Selection 2007 No significant difference between control and treatment plots; however, sample size low and power to detect difference relatively low. See Appendix 3 for report. Group Selection 2007 Control increased 24% and treatment increased 13% one year after treatment. See Appendix 3 for report. Sale Name Species Monitoring Design Meadow Valley Group Selection Units 242 and 256 Quincy Lupine BACI - Before After Control Impact One control area was protected in unit 256 and unit 242 was treated with group selection tree removal Guard 16H Closedlipped Penstemon BACI design Six 200-ft transect in this treatment unit Guard 845 Closedlipped Penstemon BACI design Six 200-ft transect in this treatment unit Group Selection 2007 Percent cover increased from 0.44% to 0.88% cover 1st year after group selection Guard 442 Closedlipped Penstemon BACI design Six 200-ft transect in this treatment unit Group Selection 2007 Percent cover decreased from 1.13% to 0.43% cover 1st year after group selection Waters 29e Closedlipped Penstemon BACI design Six 200-ft transect in this treatment unit Faggs Control Area Mechanical Percent cover increased from Thinning 2.85% to 3.18% cover 1st year after mechanical thinning 2007 Percent cover had little change Pile Burning (slight decrease from 2.53% to 2.34%) after implementation of pile 2007 burn ClosedControl Area for BACI Control Plot lipped design. Six 200-ft Penstemon transects in this control Percent cover had little change. 1.97% cover in 2007 and 1.89% cover in 2008. Tahoe NF, Sierraville RD Sites monitored to determine how rare plants respond to treatment Project Name Folchi Watershed Restoration Species Project Implementation Date Implementation Monitoring Comments PYLU, IVSE Planned 2009 Pretreatment monitoring plot established to determine effects of watershed restoration project on sensitive species. z Page 18 January 21, 2009 Question 29: Were existing infestations of noxious weeds eliminated or contained? Question 30: Were all new infestations of noxious weeds eliminated or did some become established? Lassen NF Noxious Weed Infestations Monitored for treatment effectiveness Ranger District and Sale Name Noxious Weed Species Almanor District Whip 91 Dalmatian Toadflax Occurrence Treatment treated? Effective? Hand pulled in 2006, 2007 and 2008 Hat Creek No, avoidance Big Jacks Medusahead prescribed occ#28 Hat Creek No, avoidance N Coble Medusahead prescribed occ#40 All plants Hat Creek pulled and Chutes Klamathweed removed occ#34 2002 - 08 All plants Hat Creek pulled and Chutes Klamathweed removed occ#46a 2002 - 08 All plants Hat Creek pulled and Chutes Klamathweed removed occ#46b 2002 - 08 All plants Hat Creek pulled and Chutes Klamathweed removed occ#53a 2003 - 08 All plants Hat Creek pulled and Chutes Klamathweed removed occ#53b 2003 - 08 All plants Hat Creek pulled and Chutes Klamathweed removed annually 2003 occ#53c - 06 Almanor Fox Farm Klamathweed Erratic DFPZ occ #40 Almanor Yes Young Pine Klamathweed occ #18 No Monitoring Comments Plants are beginning to expand in extent into tractor skid trails. Pulled 331 in 2006; fewer (231) plants in 2007; and population increased in 2008 when 626 were treated No Site is in road bed and seed heads are being tracked along the road. No flagging observed. No Site is on road shoulder and shows signs of seed spread from vehicles and livestock traffic. No flagging found. Yes No plants found since treatment in 2005 Yes Population is decreasing Yes Population is decreasing Yes No plants found since in 2008 Yes No plants found since treatment in 2005 Yes No plants found since treatment in 2008 No Population is increasing. Treatment has been erratic. Yes Population is decreasing Comment: Is that what you meant to say? z Page 19 January 21, 2009 Hat Creek Cabin Klamathweed occ#26 Hat Creek Cabin Klamathweed occ#27 Hat Creek Cabin Klamathweed occ#44 Yes Yes No plants found since treatment in 2003 Yes Yes Population is decreasing Yes Yes No plants found since treatment in 2002. Tahoe NF, Sierraville RD Noxious Weed Infestations Monitored for treatment effectiveness Sale Name and Unit Pieces 4 Pieces 5 Noxious Weed Species Occurrence treated? musk thistle 90% musk thistle 100% Treatment Effective? 80% Effective Yes Effectiveness Monitoring Results Revisit in 2007 found 180 plants in basal rosette stage. Revisit in 2008 found only 35 rosettes, population decreasing. Effective, 1 plant found and pulled in 2007, weed free in 2008. z Page 20 January 21, 2009 Appendix 2. Botany Control Area Tracking Sheet Botany Control Area Tracking Sheet Project Name: (See attached map for unit locations) Unit number Species Date Flag/Tag Completed Date field Flag/tag Completed GIS on visit with sale by contract map admin Field Visit Completed by z Page 21 January 21, 2009 Appendix 3. Question 28 Effectiveness Monitoring Report Lupinus dalesiae monitoring 2006 Meadow Valley Group Selection Units Michelle Coppoletta August 26, 2008 In May of 2006, two rectangular plots were established in Meadow Valley Group Selection Units 242 and 256 to determine the effects of group selection treatments on Lupinus dalesiae (Quincy lupine) abundance. Details of the plot location, methodology, data, etc. can be found in the original document titled: “LUDA monitoring Notes.doc” and saved under K:\tm02\botany\Monitoring\Lupinus_dalsiae\MV_2006_monitoring. During the summer of 2007, one of these permanent Quincy lupine plots (GS_242) was mechanically treated; the remaining plot (GS_256) was not treated and was used as a control for comparison of treatment effects. The two group selection plots were revisited and read on July 24, 2008. The following presents a summary of the pre and post-treatment monitoring data for these two plots. Number of Individuals The following table and figure present the number of Quincy lupine within each permanent plot prior to and following group selection treatments. Table 1. The number of Quincy lupine within permanent plots prior to and following treatment. postpre-treatment treatment Change in Percent count (2008) plot # count (2006) number of plants change 242 (treatment) 7 8 1 13 256 (control) 41 54 13 24 60 Number of plants 50 40 Pre-Treatment (2006) 30 Post-Treatment (2008) 20 10 0 242 (treatment) 256 (control) Plot Figure 1. The number of Quincy lupine within permanent plots prior to and following treatment. Neither the treatment plot, nor the control plot, showed a decrease in the number of individuals between 2006 and 2008. Even in the group selection plot, where all of the trees were removed and the Quincy lupine were in an obvious area of disturbance (i.e. in the middle of a skid trail), the plants were z Page 22 January 21, 2009 still present. The sub-plot data (included on the datasheet) for the group selection plot also show that the Quincy lupine plants were in the same location as they were prior to treatment. Canopy cover This environmental variable was chosen to document the change in canopy cover following group selection treatments. As is illustrated in the table and figure below, Quincy lupine plot GS_242 went from 70 percent canopy cover prior to mechanical treatment to 0 percent canopy cover following treatment. In comparison, Quincy lupine plot GS_256 went from 71 percent to 76 percent canopy cover, demonstrating a lack of forest removal. Table 2. Canopy cover in Quincy lupine permanent plots pre and post-treatment. post-treatment Change in canopy plot # pre-treatment (2006) (2008) cover 242 -0.7 (treatment) 0.7 0 0.05 256 (control) 0.71 0.76 0.8 Percent Cover 0.7 0.6 Pre-Treatment (2006) 0.5 Post-Treatment (2008) 0.4 0.3 0.2 0.1 0 242 (treatment) 256 (control) Plot Summary While not extensive, these monitoring data suggest that Quincy lupine can tolerate group selection treatment activities. The presence of Quincy lupine individuals within the treatment plot suggests that this species is tolerant of high levels of soil disturbance and forest removal. Additional monitoring should be conducted to confirm these preliminary findings. z Page 23 January 21, 2009 Appendix 3. Question 28 Effectiveness Monitoring Report (continued) Monardella follettii monitoring 2006 Meadow Valley Group Selection Units Michelle Coppoletta August 28, 2008 In August of 2006, eight permanent plots were established within (and in the vicinity of) Meadow Valley Group Selection Units 46 and 38 to evaluate the effects of group selection treatments on Monardella follettii (MOFO) abundance. Three of the eight plots were designated as controls where mechanical treatment and equipment were excluded. Group selection treatments took place during the summer of 2007 and all eight plots were revisited and monitored on August 27, 2008. Details of the plot location, methodology, data, etc. can be found in the original document titled: “MOFO Monitoring Objectives Protocol.doc” and saved under K:\tm02\botany\Monitoring\Monardella_follettii. The following tables present the pre and post-treatment monitoring data for the eight MOFO plots. Table 1 presents the number of MOFO stems recorded in each plot. Table 2 presents duff depth and canopy cover data, which were recorded to capture changes in the physical characteristics of the eight MOFO plots following treatment. Table 1. The number of MOFO stems within permanent plots prior to and following treatment. The control plots are highlighted in grey. plot # 1 2 3 4 5 6 7 8 pre-treatment count 564 109 119 37 291 203 625 180 postChange treatment number count stems 312 47 47 60 182 2 349 144 in of Percent change -252 -62 -72 +23 -109 -201 -276 -36 45 57 61 62 37 99 44 20 Table 2. The canopy cover and duff depth in MOFO permanent plots pre and post-treatment. The control plots are highlighted in grey. Average Litter depth (cm) plot # 1 2 3 4 5 6 7 8 Canopy Cover prepostpreposttreatment treatment Change treatment treatment 0.66 2.8 2.14 0 0.9 0.6 -0.3 0 1.3 1.1 -0.2 0 1.2 2.9 1.7 1 0.8 0.9 0.1 0 1.1 0.9 -0.2 0 No data 0.7 1.3 0.6 1.2 1.8 0.6 1 0 0 0 0 0 0 0 1 Number of MOFO stems In the control plots (n=3), the average difference in the number of stems between 2006 and 2008 was 140 (± 91 stems; 80% CI). On average, there was an approximate 33 percent change in the number of stems between the two monitoring years. This suggests a relatively large natural variability in the number of MOFO stems between years. In the treatment plots (n=5), the average difference in the z Page 24 January 21, 2009 number of stems between 2006 (pre-treatment) and 2008 (post-treatment) was -113 (± 64 stems; 80% CI). In these plots, the average decrease in the number of stems was 40 percent. An analysis of variance determined that the difference between treated plots and control plots was not significant (p=0.75; ά = 0.05). 0 Treatment plots Control plots Number of stems -50 -100 -150 -200 -250 Figure 1. A comparison of the average difference in number of MOFO stems within permanent plots prior to and following treatment. During the 2008 monitoring effort, it became apparent that some plots were more heavily impacted than others within the treatment area; for example, two of the five treatment plots were in the middle of a skid trail and received a much greater degree of disturbance. The photographs below provide an example of what we classified as “high” and “moderate” disturbance within treatment plots. “High” disturbance classification Pre-treatment Post-treatment z Page 25 January 21, 2009 “Moderate” disturbance classification Pre-treatment Post-treatment Figure 2 illustrates the change in MOFO stems within each plot prior to and following treatment. Those treatment plots located within skid trails were classified as having “high” disturbance while those treatment plots that were located off of skid trails, but still within the area of treatment, were classified as having “moderate” disturbance. It is important to note that even the plots that were classified as “moderate” still experienced a great deal of disturbance (i.e. debris piled on top of plants). 700 Number of individuals 600 500 400 300 pre-treatment post-treatment 200 100 Pl ot 2( H) Pl ot 6( H) Pl ot 1( M ) Pl ot 3( M ) Pl ot 4( M ) Pl ot 5( NT ) Pl ot 7( NT ) Pl ot 8( NT ) 0 Figure 2. An individual plot comparison of the number of MOFO stems prior to and following treatment. The plots were grouped based on intensity of treatment; (H): high disturbance, (M): moderate disturbance; and (NT): no treatment. From this data, it is difficult to state with certainty the effects of group selection treatments on MOFO abundance. The presence of MOFO individuals within the treatment plots suggests that the species is able to tolerate a fair amount of disturbance; MOFO plants were found (albeit in much lower z Page 26 January 21, 2009 abundance) in areas that were scraped of almost all of the duff and vegetation (i.e. skid trails) and under woody debris. Many of the MOFO within the treatment area were noted to be robust with multiple flowering branches. The lack of significance between the control and treatment plots suggests a few different possibilities. First, that there is no difference between treatments and controls; or in other words, the difference in the number of MOFO stems before and after treatment is within the natural range of variability observed for the species in the control plots. A second, very important possibility is that we did not have enough experimental power to detect a true difference between the control plots and the treatment plots. The power was very low (0.06), which suggests that we likely need to add additional plots or reconsider the plot size or shape in order to gain a more solid understanding of the treatment effects. A power analysis was conducted using the following monitoring objective: Objective: To be 90% certain of detecting a 20% difference in mean plant density (i.e. the number of stems per square meter) in group selection treatment units and in control areas. We are willing to accept a 10% chance that a false-change error occurred (conclude a change occurred when it really did not). To meet this objective with our current plot design, we would need to install approximately 49 treatment plots and 24 controls. With our current design, we can be about 80% certain of detecting a 40% difference in mean plant density (i.e. the number of stems per square meter) in group selection treatment units and in control areas. We would also have to be willing to accept a 20% chance that a false-change error occurred (conclude a change occurred when it really did not). Plot physical characteristics As seen in the photographs below, there was a large decrease in overstory canopy cover and an increase in ground disturbance as a result of the group selection treatment. Data collected within each individual plot show an increase in duff depth in both control and treatment plots (Figure 3). In general, treatment plots appeared to have a greater increase in duff depth; however this difference was not significant between the two plot types (p=0.8; ά = 0.06). Change in Duff Depth (cm from 2006 to 2008 0.7 0.6 0.5 0.4 0.3 Treatment plots Control plots 0.2 0.1 0 Figure 3. A comparison of the average difference in duff depth within permanent plots prior to and following treatment. Although the canopy cover across the stand changed dramatically following the group selection treatment, individual plots did not exhibit a significant change in canopy cover. Only one plot (#4), z Page 27 January 21, 2009 converted from a closed canopy to an open canopy following treatment. The remaining plots had an open canopy (directly over the plot) in both 2006 and 2008, which resulted in a poor standard of comparison.