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Draft 1 – January 2008. Best Management Practices: Grizzly Bears and Forest Management in Southwest BC. Sue Senger Tony Hamilton. Background. Grizzly bears are Blue listed Within the Lillooet TSA, all 3 Grizzly bear population units are listed as Threatened - PowerPoint PPT Presentation
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Best Management Practices: Best Management Practices: Grizzly Bears and Forest Grizzly Bears and Forest
Management in Southwest BCManagement in Southwest BC
Draft 1 – January 2008Draft 1 – January 2008
Sue Senger
Tony Hamilton
BackgroundBackground
►Grizzly bears are Blue listedGrizzly bears are Blue listed►Within the Lillooet TSA, all 3 Grizzly Within the Lillooet TSA, all 3 Grizzly
bear population units are listed as bear population units are listed as ThreatenedThreatened
►Recent DNA evidence has led to Recent DNA evidence has led to proposals that will:proposals that will:
►Split S. Chilcotin GBPU into east & westSplit S. Chilcotin GBPU into east & west►Move Stein Nahatlatch GBPU to full recoveryMove Stein Nahatlatch GBPU to full recovery
Key Steps in RecoveryKey Steps in Recovery
Long Term Commitments for:Long Term Commitments for:► Protected Area Management for BearsProtected Area Management for Bears► Landscape Level Forage SupplyLandscape Level Forage Supply► Critical Habitat Protection – THLB Critical Habitat Protection – THLB
allowancesallowances► Access ManagementAccess Management► Bear-Human Conflict MitigationBear-Human Conflict Mitigation
PracticesPractices
►Landscape Level Forage SupplyLandscape Level Forage Supply►Reduced stocking targets on selected site seriesReduced stocking targets on selected site series►CWD managementCWD management
►Critical Habitat ProtectionCritical Habitat Protection►Identification & designation of WHAsIdentification & designation of WHAs
►Access ManagementAccess Management►Spur – activation/deactivationSpur – activation/deactivation►Mainline – multi-stakeholder access planningMainline – multi-stakeholder access planning
Draft 1: Important Spring Draft 1: Important Spring HabitatHabitat
► PEM unitsPEM units AV=Avalanche track, AV=Avalanche track, HM=Herbaceous Meadow HM=Herbaceous Meadow (at Parkland boundary), (at Parkland boundary),
WM=Wet Meadows, WM=Wet Meadows, WS=Wetland-shrub-dominated, WS=Wetland-shrub-dominated, WE=Wetland-Undistinguished open water, sedge & WE=Wetland-Undistinguished open water, sedge &
shrubshrub
Van Horlick –Important Spring Habitats Draft 1Van Horlick –Important Spring Habitats Draft 1
Moving from Important to Moving from Important to CriticalCritical
►Landscape analysis (field & map based)Landscape analysis (field & map based)►Outcome=Class 1 & Class 2 Outcome=Class 1 & Class 2
determinationdetermination
►Conduct site investigations to verify Conduct site investigations to verify class & establish forest bufferclass & establish forest buffer
►Designate as critical, establish WHADesignate as critical, establish WHA
Spring Habitat THLB Overlap by Spring Habitat THLB Overlap by WatershedWatershed
WatershedWatershed Watershed Watershed RankRank
HectaresHectares
TexasTexas 11 485485
KwoiekKwoiek 33 614614
SiskaSiska 44 3030
DuffeyDuffey 99 724724
CayooshCayoosh 1111 329329
Lost ValleyLost Valley 1414 644644
TotalTotal -- 2,8262,826
Field Verification of BufferField Verification of Buffer
So far just modeling on the basis of 50m bufferSo far just modeling on the basis of 50m buffer
NEXT:NEXT:►Walk the habitat boundariesWalk the habitat boundaries►Assess quality & distribution of adjacent Assess quality & distribution of adjacent
security and thermal cover (bear sign?)security and thermal cover (bear sign?)►Buffer provides additional functions: Buffer provides additional functions:
wind, shade, water, snow movement, wind, shade, water, snow movement, etc.etc.
►Layout buffer for site specific objectivesLayout buffer for site specific objectives
Cutblock Field Assessments Cutblock Field Assessments (n=55)(n=55)
► Independent of bear pointsIndependent of bear points►Largely subjective (semi-quantitative)Largely subjective (semi-quantitative)►Data collection includes:Data collection includes:
RoadsRoads Layout (buffering of critical habitat)Layout (buffering of critical habitat) Food productionFood production Site variables – BEC, site series, stocking, Site variables – BEC, site series, stocking,
etc.etc. PhotosPhotos
BearBear CWHCWH ESSFESSF IDFIDF MSMS UNKUNK TotalTotal
F1 48 3 51
F2 8 8
F3 38 38
M1* 1 1
M2* 6 6
Total (2005) 101 3 104
F1 93 93
F3 304 304
M1* 1 28 12 41
M3 2 69 1 7 352 431
M5 116 116
Total (2006) 3 610 1 19 352 985
F1 34 1 35
F8 52 52
F9 35 4 39
M1 17 150 17 55 239
M7 4 6 16 26
Total (2007) 21 277 22 71 391
BearBear YearYear Total # Total # PtsPts
CutblocCutblock (%)k (%)
500m 500m (%)(%)
1 km 1 km (%)(%)
F1F1 20052005 290290 99 4747 5858
20062006 909909 1010 2424 4343
20072007 586586 33 4949 7070
M1M1 20072007 19151915 1212 6161 7272
M4M4 20062006 30653065 2727 4444 5757
20072007 33943394 1515 4848 6565
PracticesPractices
►Landscape Level Forage SupplyLandscape Level Forage Supply►Reduced stocking targets on selected site seriesReduced stocking targets on selected site series►CWD managementCWD management
►Critical Habitat ProtectionCritical Habitat Protection►Identification & designation of WHAsIdentification & designation of WHAs
►Access ManagementAccess Management►Spur – activation/deactivationSpur – activation/deactivation►Mainline – multi-stakeholder access planningMainline – multi-stakeholder access planning
Harvest
Class 1, then protect as
critical habitat
No further bear concerns
No
Not near critical
Near Critical
Maybe
NoYes
When Class 2 is rare,
then protect as critical habitat
Class 2-5, when Class 2 is common
Is Class 2-3 Is Not Class 2-3Landscape
forage deficit?
Roads
Layout
SilvicultureYes No
Stocking No StockingNo Stocking
CWD
Stocking
CWD
Next StepsNext Steps
► Text version of BMPsText version of BMPs► Revised spring habitat map based on Revised spring habitat map based on
feedbackfeedback► Production of multi-season class mapProduction of multi-season class map► Revised version of stocking target tablesRevised version of stocking target tables
Feedback:Feedback:► Clarification of products: number, design, Clarification of products: number, design,
content & format for what audience?content & format for what audience?► Additional? Additional?
► e.g. graphics regarding layout?e.g. graphics regarding layout?