Semelparous organisms initially allocate energy into growth, development, and energy storage and later allocate energy into one massive reproductive effort before dying.

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Semelparous organisms, also known as "big-bang" reproducers, typically exhibit this life history strategy where they invest heavily in growth and energy storage early in life and then put all their energy into one massive reproductive effort before dying. This is in contrast to iteroparous organisms, which produce offspring multiple times throughout their lives, usually in smaller batches.

Semelparous Organisms Initially Allocate Energy into Growth, Development, and Energy