( ( Concerns ( for ( overharvest ( of ( this species ) ) ) ) ) ( ( ( helped lead ) ( to ( ( the creation ) ( of ( the park ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNS Concerns)) (PP (IN for) (NP (NP (NN overharvest)) (PP (IN of) (NP (DT this) (NN species)))))) (VP (VBD helped) (NP (NN lead)) (PP (TO to) (NP (NP (DT the) (NN creation)) (PP (IN of) (NP (DT the) (NN park)))))) (. .)))
Concerns for overharvest of this species helped lead to the creation of the park.
(ROOT (S (NP (NNP Overharvesting)) (VP (VBZ is) (NP (DT a) (JJ serious) (NN threat)) (ADVP (RB particularly)) (PP (TO to) (NP (JJ aquatic) (NNS species)))) (. .)))