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Dendrochronologic Reconstruction of Western Spruce Budworm Outbreaks on the Rio Grande N.F.

This study focuses on reconstructing the outbreaks of the Western Spruce Budworm in the Rio Grande National Forest through dendrochronology, providing valuable insights into the duration and intensity of past outbreaks.

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Dendrochronologic Reconstruction of Western Spruce Budworm Outbreaks on the Rio Grande N.F.

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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. 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

  3. 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

  4. 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 $

  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 44,000 98 10,000 14,700 Salary $

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