( This ( ( ( does not ) ( seem ( to ( ( pose ( a ( serious threat ) ) ) ( to ( ( this species ) ( at ( this time ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT This)) (VP (VBZ does) (RB not) (VP (VB seem) (S (VP (TO to) (VP (VB pose) (NP (DT a) (JJ serious) (NN threat)) (PP (TO to) (NP (NP (DT this) (NN species)) (PP (IN at) (NP (DT this) (NN time)))))))))) (. .)))
This does not seem to pose a serious                       threat to this species at this time.
(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)))) (. .)))