gps in support of biodiversity and ecosystem databases by greg carlino, ben schmitz, and erin martin
TRANSCRIPT
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GPS in Support of Biodiversity and
Ecosystem Databases
by
Greg Carlino, Ben Schmitz, and Erin Martin
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Definitions Biodiversity – “Earth’s rich variety of
distinct species, the genetic variability within them, and the natural communities and ecosystems they inhabit.” (The Earth in Balance)
Ecosystem – “A community of plants and animals together with the physical environment they inhabit.” (American Heritage Dictionary)
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Importance of Biodiversity
Leads to a sustainable environment– Less susceptible to disease, drought, etc.– Economic value of diversity– Culture and identity
Widely researched topic
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GPS and Environmental Databases
Speed Large datasets Variable accuracy Compatible with remote sensing, GIS,
and traditional surveying Economic method of data collection
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Biodiversity in BrazilNature Conservancy Study
Needs info about flora (plants) and fauna (animals), and their habitats in order to prioritize conservation efforts.
Often needs to make informed decisions quickly
Use REA coarse/fine filter approach (6 mo.)– Remote Sensing (initial classification)– Field Observations (verify classifications)– Overflights (verify areas inaccessible by foot)
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Results Assumption that drier highland areas
were located outside the existing park was proven correct
Total of 148,200 acres of land identified as prime conservation areas and acquired
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Gone Fishing in the Pacific Northwest
GPS Used to Map Chinook Salmon Spawning Habitat– Salmon part of identity, culture, religion,
and economic system of people Series of hydroelectric dams built on
Snake River– Salmon listed as endangered– Corps required to do a study
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PNNL Study Search for redds (salmon nests)
– One month window– Used GPS, GIS, Underwater Video
Method– GIS query to find likely locations– Transects set up
Boat location tracked with 12-channel, L1, C/A –code Trimble Pro XR GPS receiver
Underwater camera Onboard PC for real-time visualization
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Redd Spottings… Shore-based surveyor with laser
transit and prism on boat– Also depthfinder, current profiler, camera
Rebar with survey tape used to mark DGPS later used
– Submeter accuracy obtained on a moving boat on a reference-free river with high canyon walls
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Results Redds mapped at around 1m accuracy
Corps could plan construction projects and dam operations that would minimize effect on Chinook Salmon
Technique has been applied elsewhere
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Saving an Endangered Species GPS Used to Monitor and Manage Wild
Horse and Burro Herds in West
Symbols of the West– By mid 19th Century, 2 million horses
roamed North America– Inhumane capture and destruction for
commercial purposes reduced numbers to 17,000 by 1971
– Congress passes Wild Free-Roaming Horse and Burro Act (1971)
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Resource Management
Jurisdiction of Bureau of Land Management (div. of Dpt. of Interior)
Collecting base information 80% of total cost (gather, analyze, display)
Tracking Horses– Use GPS in conjunction with PC to
provide automated field data collection system
Supplies needed reference framework (grounding) for GIS mapping and analysis
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Why GPS ? BLM’s findings are often challenged
– Need to display current and past flight paths and other supporting data
System must be accurate to 40 meters System must be capable of recording
data in a downloadable format for use in subsequent Land Information Systems
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Using GPS to Research Animal Species
– 1995 study of Southern Elephant Seals in Falkland Islands
– Goal to reach conclusion about individual variation and evolution of social behavior
Why use mapping to study seals?– Space related phenomenon
Territorial defense
– Tracking of “tagged” individuals provides huge amounts of data (activity, movement)
– Study of long-distance migratory species
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GPS in Use Mapping perimeter of harems Tracking of Alpha-males and primary
breeding females Data used to tabulate census numbers
and population density
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Advantages of GPS Operates under any weather conditions
– Harsh Falkland Island climate Poor land mobility of seals means that
spatial relationships must be defined over short distances– Sub meter accuracy required
Ease and speed of use Data format easily transformed
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National Institute of Water and Atmospheric Research (NIWA)
Another agency that has implemented GPS into many research projects involving marine taxonomy – biodiversity inventory
40 years of oceanographic sampling in New Zealand, Australia, Pacific Islands, and Antarctica
1992 Convention on Biological Diversity ruled that member nations must inventory habitats and species for sustainable resource management – GPS helped NIWA accomplish this goal.
Underwater cameras aided by satellite navigation system to create a biodiversity research library
http://katipo.niwa.cri.nz/taxonomy/
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Save the Elephant Organization Charity founded in 1993 by
Dr. Ian Douglas-Hamilton who made a pioneering study of elephant behavior
Used GPS collars to study long distance movements of herds
Needed to determine how elephants make decisions concerning where to roam in order to predict ecological changes on elephants and the biodiversity of the area
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Elephant Migration Map Map created by
collecting and plotting GPS co-ordinates of Stratus (family matriarch)
Proved long standing theory that elephants were traveling from Samburu all the way to Il Ngwesi
www.savetheelephants.org
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Forest Fragment Project Manaus, Brazil Objective to map biomass changes in
central Amazonia Relate field data with remote sensing
data from Landsat TM images
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GPS and Environmental Databases
Speed Large datasets Variable accuracy Compatible with remote sensing, GIS,
and traditional surveying Economic method of data collection
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References The Earth in Balance, Maintaining Brazil’s Biodiversity, GPS
World, June 1996. Track ‘em Cowboy! GPS Rides the Range, GPS World,
September 1995. Reed Recon: Mapping Chinook Spawning Habitat, GPS
World, January 1999. A Very Spatial Relationship, GPS Mapping Aids
Understanding of Elephant Seal Behavior, GPS World, July 1999.
The American Heritage Dictionary, 2nd Edition, Houghton Mifflin Company, Boston, 1985.