( ( AQUATICS ( AQUATIC ( HABITAT AND ) ) ) ( ( SPECIES 1 ) . ) )
(ROOT (S (NP (NNP AQUATICS) (NNP AQUATIC) (NNP HABITAT) (NNP AND)) (VP (VBZ SPECIES) (NP (CD 1))) (. .)))
AQUATICS AQUATIC HABITAT AND SPECIES 1.
(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)))) (. .)))