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DENDROCHRONOLOGIC RECONSTRUCTION OF WESTERN SPRUCE BUDWORM OUTBREAKS ON THE RIO GRANDE N.F. By

DENDROCHRONOLOGIC RECONSTRUCTION OF WESTERN SPRUCE BUDWORM OUTBREAKS ON THE RIO GRANDE N.F. By DANIEL E. RYERSON, U AZ, LTRR THOMAS W. SWETNAM, U AZ, LTRR ANN M. LYNCH, USFS RMRS. Rio Grande N. F. Host Sites Site Elev Species present ALC Alder Creek 8899 Psme Abco Pipo Pifl Potr

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DENDROCHRONOLOGIC RECONSTRUCTION OF WESTERN SPRUCE BUDWORM OUTBREAKS ON THE RIO GRANDE N.F. By

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  1. DENDROCHRONOLOGIC RECONSTRUCTION OF WESTERN SPRUCE BUDWORM OUTBREAKS ON THE RIO GRANDE N.F. By DANIEL E. RYERSON, U AZ, LTRR THOMAS W. SWETNAM, U AZ, LTRR ANN M. LYNCH, USFS RMRS

  2. Rio Grande N. F. Host Sites Site Elev Species present ALC Alder Creek 8899 Psme Abco Pipo Pifl Potr DMJ Demijohn Pk 9519 Psme Pipo Abco Pifl Potr FRN Fern Creek 9358 Psme Pien JCK Jakes Creek 10119 Pifl Psme LIM Lime Creek 9997 Psme Pien LKB Luck Boy 10237 Psme Piar Pifl MCK Mill Creek 9036 Psme Pipo PAL Palisades 8498 Psme Pien PTR Pool Table 9499 Psme SMT Spruce Mt 9997 Psme Potr Pien Pipo TRL Terrace Lake 8758 Abco Psme Pipo

  3. DENDROCHRONOLOGIC RECONSTRUCTION OF WESTERN SPRUCE BUDWORM OUTBREAKS ON THE RIO GRANDE N.F. BUDGET PLAN FHM RioGr RMRS FY’96 10,000 10,200 Lynch salary FY’97 10,000 14,700 Lynch salary FY’98 10,000 14,700 Lynch salary $

  4. $ DENDROCHRONOLOGIC RECONSTRUCTION OF WSBW OUTBREAKS ON THE RIO GRANDE N.F. Financial Other Contributions Unit 20,000 Forest Health Management GSC 7,000 Field assistance Rio Grande N.F. 37,500 Lynch salary Rocky Mountain Research Station 12,900 Swetnam salary University of Arizona

  5. DENDROCHRONOLOGIC RECONSTRUCTION OF WESTERN SPRUCE BUDWORM OUTBREAKS ON THE RIO GRANDE N.F. • BUDGET PLAN ACTUAL BUDGET • FHM RioGr RMRS FHM RioGr RMRS • 96 10,000 10,200 Salary 10,000 7,000 3,500 • 97 10,000 14,700 Salary 10,000 34,000 • 10,000 14,700 Salary • Tot 30,000 39,600 Salary 20,000 7,000 37,500 • + salary $

  6. Rio Grande N. F. Host Sites Site Elev Species present ALC Alder Creek 8899 Psme Abco Pipo Pifl Potr DMJ Demijohn Pk 9519 Psme Pipo Abco Pifl Potr FRN Fern Creek 9358 Psme Pien JCK Jakes Creek 10119 Pifl Psme LIM Lime Creek 9997 Psme Pien LKB Luck Boy 10237 Psme Piar Pifl MCK Mill Creek 9036 Psme Pipo PAL Palisades 8498 Psme Pien PTR Pool Table 9499 Psme SMT Spruce Mt 9997 Psme Potr Pien Pipo TRL Terrace Lake 8758 Abco Psme Pipo

  7. Chronology initial year & size Psme Abco n ALC 1693 1736 21, 22 DMJ 1620 1840 17, 5 FRN 1660 21 JCK 934 50 LIM 1411 35 LKB 1515 18 MCK 1693 35 PAL 1600 13 PTR 1480 28 SMT 1659 19 TRL 1600 1770 17, 15

  8. Rio Grande N.F. Nonhost Sites Chronology start date EBR East Big River 1610 JCK Jakes Creek 1075 LBP Lucky Boy 1380 PTP Pool Table 1654 RDS Roadside 1605 TLP Terrace Lake 1600 WIR Wilson Ranch 1675

  9. Reconstructed WSBW outbreaks Interval Duration No. yrs (sd) Trees Site ALC 39 (23) 12.8 17.0 DMJ 44 (20) 15.5 20.0 FRN 45 (23) 15.4 20.9 JCK 44 (24) 12.5 18.8 LIM 39 (16) 13.5 19.6 LKB 32 (19) 12.5 15.8 MCK 34 (20) 12.7 17.3 PAL 36 (10) 11.9 13.5 PTR 36 (10) 13.2 16.5 SMT 33 (12) 11.8 17.8 TRL 59 (28) 15.9 23.8

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