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This Concept Map, created with IHMC CmapTools, has information related to: Red Knots (2ndary article) 090616, from Tierra del Fuego (South America; Argentina) "stopping over" at Delaware Bay (USA: Virginia; Maryland; Delaware), overharvesting the Horseshoe Crabs leading to insufficient numbers of eggs produced in 2003, Delaware Bay (USA: Virginia; Maryland; Delaware) to feed on Horseshoe Crab eggs (produced by Adult Female Horseshoe Crabs), "skipped breeding cycle" which is considered a "dire" evolutionary consequence (because no offspring were produced), insufficient energy available for the Red Knots to complete their Northward Migration in 2003 leading to No offspring in 2003, In the 19990's the number of horseshoe crabs began to decline due to overharvesting the Horseshoe Crabs, a rebound in the Horseshoe Crab population (and their eggs) allowing for the red knots to reach their Arctic breeding sites in a healthy condition and breed, No offspring in 2003 causing a "skipped breeding cycle", Horseshoe Crab eggs (produced by Adult Female Horseshoe Crabs) for which In the 19990's the number of horseshoe crabs began to decline, Horseshoe Crab eggs (produced by Adult Female Horseshoe Crabs) for which Starting in 1998: Harvest Restrictions were put in place, the red knots to reach their Arctic breeding sites in a healthy condition and breed which is the desired evolutionary consequence (because offspring are now being produced), overharvesting the Horseshoe Crabs for fishing bait, insufficient numbers of eggs produced in 2003 leading to insufficient energy available for the Red Knots to complete their Northward Migration in 2003, Starting in 1998: Harvest Restrictions were put in place leading to a rebound in the Horseshoe Crab population (and their eggs), Red Knots (birds) migrate North from Tierra del Fuego (South America; Argentina)