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Social-Ecological Systems Meta-Analysis Database: Component

SummaryThe Hawaiian green turtle is genetically distinct from the other green sea turtle populations, nesting primarily in the French Frigate Shoals of the Northwestern Hawaiian Islands and feeding in the coastal areas of the main Hawaiian Islands. This species was in a steep decline as of the 1970s because of direct harvest of both turtles and eggs by humans. The population has grown steadily over the last thirty years after protection began in 1978.
SubtypeNatural Resource Unit
SectorMarine protected areas
Commons AggregationPopulation
ExplanationHawaiian sub population of Green Turtles (Central North Pacific population). More than 90% of the Hawaiian population of green turtles nests at French Frigate Shoals in the NWHI.
Commons BoundariesSomewhat unclear boundaries (2)
ExplanationKnown nesting and foraging grounds, but a migratory species
Commons Indicator["Status of highly migratory species"]
Commons Unit SizeMedium (3)
ExplanationAverage weight of adult individual 68-190Kg
Environmental MediumOceanic
Inter Annual PredictabilityModerate (2)
ExplanationMigratory but likely to return to particular nesting beaches every couple of years. Long-living. But vulnerable to rapid declines if threatened by human activity.
Intra Annual PredictabilityModerate (2)
ExplanationAvailability varies according to season, but these patterns can be predicted. Also population sizes don't fluctuate too much in relation environmental factors.
Commons RenewabilityRenewable (1)
ExplanationBut slow to reproduce - low regeneration rates
ProductivityPoorly productive (1)
ExplanationSlow maturing, high infant mortality
Commons AccessibilityVery accessible (3)
ExplanationTurtles are easy to catch - intentionally or as bycatch. They are predicable with their nesting season when they and their eggs are easy to harvest
Commons HeterogeneityModerate (2)
ExplanationDistributed in tropical and sub-tropical waters. Movements within the marine environment less well understood, but known to use a wide range of broadly separated localities and habitats during their lifetimes. But considered moderate as females return to same nesting beaches.
Commons MobilityHigh (3)
ExplanationMigratory species
Commons Spatial Extent362000
Explanation362000km2 is the area of NWHI
Technical SubstituteNot Applicable