Using ArcGIS to Prioritize  Invasive Plant ControlJean Fujikawa (Operations Planner / Analyst)      Hawai‘i Pacific GIS Co...
Agenda• OISC overview  – who we are  – our target species  – miconia model example• Evaluating potential species for contr...
The O‘ahu Invasive Species Committee (OISC) is a voluntary partnership of private, governmental and non-profit organizatio...
Some of OISC’s target speciesMiconia               Coqui Frog                Himalayan                BeardgrassMiconia ca...
Model of miconia spreading across the watersheds of O‘ahu in the absence of       systematic control effortsPlants        ...
OED refers high threat / low       distribution species to OISC• After road, nursery and reported species OED had list of ...
Species recommended for control          by OED (first round)•   Caesalpinia crista    • Parkinsonia aculeata•   Chromolae...
Species recommended for controlCaesalpinia   Chromolaena   Cordia        Cryptostegiacrista        odorata       alliodora...
Species recommended for controlParkinsonia    Pennisetum      Pereskia     Piperaculeata       villosum        aculeata   ...
Distribution ofpotential OISCtarget species
General survey decision process                  600m                            Plants      No plants            found in...
General survey decision process                    However, we need                    permission from land               ...
Tracking progress with ArcGIS
Potential species for control layout
Checking on buffers, terrain, roads,    trails and land ownership                       •Pink: buffers, plant locations   ...
Partial table for tracking our            delimiting survey progressEvaluated by OED           Sites 200m        Survey 60...
Caesalpiniacrista              private propertyTantalus      left to survey200mbuffer                      ~20            ...
Pennisetum villosumAiea200m buffer     Aiea            Kahala
Rauvolfia vomitoria andSetaria sphacelata buffer overlap                            Kāne‘ohe
Kalaeloa                              ~ 5-10 plants                              per pointCryptostegia grandiflora - 200m ...
Model: Land ownership summary•   Buffer species points 200m and 600m•   Clip parcels•   Dissolve on landowner•   Result: n...
Summary• Using ArcGIS throughout the evaluation process• Standard format for dealing with each species at  each site, howe...
Mahalo!• Supervisor (Rachel Neville)• Co-workers at OISC, OED• All our volunteers, committee members, partners  and funder...
Hawaii Pacific GIS Conference 2012: Disaster Management and Emergency Response II - Using ArcGIS to Proritize Invasive Pla...
Hawaii Pacific GIS Conference 2012: Disaster Management and Emergency Response II - Using ArcGIS to Proritize Invasive Pla...
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Hawaii Pacific GIS Conference 2012: Disaster Management and Emergency Response II - Using ArcGIS to Proritize Invasive Plant Control

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Hawaii Pacific GIS Conference 2012: Disaster Management and Emergency Response II - Using ArcGIS to Proritize Invasive Plant Control

  1. 1. Using ArcGIS to Prioritize Invasive Plant ControlJean Fujikawa (Operations Planner / Analyst) Hawai‘i Pacific GIS Conference March 5, 2012
  2. 2. Agenda• OISC overview – who we are – our target species – miconia model example• Evaluating potential species for control using ArcGIS – OED survey and evaluation – OISC delimiting surveys
  3. 3. The O‘ahu Invasive Species Committee (OISC) is a voluntary partnership of private, governmental and non-profit organizationsand individuals united to prevent new invasive species infestationson the island of O‘ahu, to eradicate incipient invasive species, and to stop established invasive species from spreading.
  4. 4. Some of OISC’s target speciesMiconia Coqui Frog Himalayan BeardgrassMiconia calvescens Eleutherodactylus coqui Blackberry Andropogon glomeratus var. pumila Rubus discolorFountain Pampas Little Fire Canegrass grass Ant tibouchinaPennisetum setaceum Cortaderia spp. Wasmannia auropunctata Tibouchina herbacea
  5. 5. Model of miconia spreading across the watersheds of O‘ahu in the absence of systematic control effortsPlants Model Affectedcontrolled year 10 Miconia in Tahiti Miconia model output -Mānoa
  6. 6. OED refers high threat / low distribution species to OISC• After road, nursery and reported species OED had list of 1797 species.• Of the 1797 species 56 species were determined to be – present on the island but of low distribution, – weedy, – could be scored by the Hawai‘i Pacific Weed Risk Assessment (HPWRA)• After doing full assessments of the 56 of 16 species were chosen which high practicality of control and high weediness scores• OISC will delimit these 16 species and select which are feasible to eradicate
  7. 7. Species recommended for control by OED (first round)• Caesalpinia crista • Parkinsonia aculeata• Chromolaena odorata • Pennisetum villosum• Cordia alliodora • Pereskia aculeata• Cryptostegia • Piper aduncum grandiflora • Rauvolfia vomitoria• Delairea odorata • Senna artemisioides ssp. filifolia• Imperata cylindrica • Setaria sphacelata• Melinis nerviglumis • Suriana maritima• Nassella tenuissima
  8. 8. Species recommended for controlCaesalpinia Chromolaena Cordia Cryptostegiacrista odorata alliodora grandifloraDelairea Imperata Melinis Nassellaodorata cylindrica nerviglumis tenuissima
  9. 9. Species recommended for controlParkinsonia Pennisetum Pereskia Piperaculeata villosum aculeata aduncum SennaRauvolfia artemisioides Setaria Surianavomitoria ssp. filifolia sphacelata maritima
  10. 10. Distribution ofpotential OISCtarget species
  11. 11. General survey decision process 600m Plants No plants found in found in 200m 200m 200m or = Scour 600m good Survey habitat good survey habitat = Scour
  12. 12. General survey decision process However, we need permission from land owners at each phase of our surveys • Hopefully they say YES! • If access cannot be obtained, we document our activity and move the species lower on our priority list
  13. 13. Tracking progress with ArcGIS
  14. 14. Potential species for control layout
  15. 15. Checking on buffers, terrain, roads, trails and land ownership •Pink: buffers, plant locations •Orange: property boundaries •Yellow: trails •Blue: streams •Gray: roads •Brown: > 45 degree slope •Background: 1ft imagery
  16. 16. Partial table for tracking our delimiting survey progressEvaluated by OED Sites 200m Survey 600m Survey Pop buffer review buffer review extentCaesalpinia crista 1 in prog.Chromolaena odorata 2 in prog.Cordia alliodora 3Cryptostegia grandiflora 1Delairea odorata 1 done cont. in prog. almosImperata cylindrica 2Melinis nerviglumis 3 in prog.Nassella tenuissima 3 in prog.Parkinsonia aculeata 2 done cont. done define
  17. 17. Caesalpiniacrista private propertyTantalus left to survey200mbuffer ~20 plants Tantalus
  18. 18. Pennisetum villosumAiea200m buffer Aiea Kahala
  19. 19. Rauvolfia vomitoria andSetaria sphacelata buffer overlap Kāne‘ohe
  20. 20. Kalaeloa ~ 5-10 plants per pointCryptostegia grandiflora - 200m buffer
  21. 21. Model: Land ownership summary• Buffer species points 200m and 600m• Clip parcels• Dissolve on landowner• Result: number of different landowners, parcels per landowner, and acres
  22. 22. Summary• Using ArcGIS throughout the evaluation process• Standard format for dealing with each species at each site, however, each situation is unique• Early detection will prevent "the next miconia" from happening• If you’re are ever contacted by your local ISC for permission to survey and control on your property, please say YES!
  23. 23. Mahalo!• Supervisor (Rachel Neville)• Co-workers at OISC, OED• All our volunteers, committee members, partners and funders for their continuing support Jean Fujikawa - jeanyf@hawaii.edu OISC - http://www.oahuisc.org HWRA - http://www.botany.hawaii.edu/faculty/daehler/wra/

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