Colonies were classified as having a positive trend if λ > 1, a negative trend if λ < 1, and a stable trend λ = 1.
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Status and global population trend of the Magellanic penguin Spheniscus magellanicus along the Argentine coast.
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Colonies were classified as having a positive trend if λ > 1, a negative trend if λ < 1, and a stable trend λ = 1.