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Social-Ecological Systems Meta-Analysis Database: Component

SummaryGreen turtle (Chelonia mydas) is used as a proxy for understanding the impact of MPAs on migratory species
ProjectSESMAD
SubtypeNatural Resource Unit
SectorMarine protected areas
BioticYes
Explanation
Commons AggregationPopulation
ExplanationPopulation
Commons BoundariesSomewhat unclear boundaries (2)
ExplanationCan be found in certain islands in the Raja Ampat area and have distinct nesting and foraging areas although they migrate throughout the entire area and are generally found in tropical and subtropical waters. The nesting locations in the Raja Ampat area are Wayag-Sayang, Ayau-Asia, Kofiau, Boo Isles, and Southeast Misool.
Commons Indicator["Status of highly migratory species"]
Explanation
Commons Unit SizeMedium (3)
ExplanationAverage weight of adult individual 68-190Kg
Environmental MediumOceanic
ExplanationOceanic
Inter Annual PredictabilityModerate (2)
ExplanationMigratory but likely to return to particular nesting beaches every 3-4 years. Long-living. But vulnerable to rapid declines year on year 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)
ExplanationRenewable, although low survival rates and slow maturing
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 the sense that they migrate all over the indo-pacific ocean but return to the same nesting beach each year. The nesting locations in the Raja Ampat area are Wayag-Sayang, Ayau-Asia, Kofiau, Boo Isles, and Southeast Misool.
Commons MobilityHigh (3)
ExplanationMigratory species
Commons Spatial Extent11859
ExplanationCoded as the extent of the Raja Ampat network, but they are distributed in tropical and sub-tropical waters
Technical SubstituteNo
Explanation