( ( ( Human encroachment ) ( in ( ( the form ) ( of ( impoundment ( , ( highway ( ( construction and ) fires ) ) ) ) ) ) ) ) ( all ( ( contributed ( to ( ( the ( population declines ) ) ( of ( these species ) ) ) ) ) . ) ) )
(ROOT (S (NP (NP (JJ Human) (NN encroachment)) (PP (IN in) (NP (NP (DT the) (NN form)) (PP (IN of) (NP (NN impoundment) (, ,) (NN highway) (NN construction) (CC and) (NNS fires)))))) (RB all) (VP (VBD contributed) (PP (TO to) (NP (NP (DT the) (NN population) (NNS declines)) (PP (IN of) (NP (DT these) (NN species)))))) (. .)))
Human encroachment in the form of impoundment, highway construction and fires all contributed to the population declines of these species.
(ROOT (S (NP (NP (DT All) (NNS members)) (PP (IN of) (NP (DT a) (NN species) (NN living)))) (ADVP (RB together)) (VP (VB form) (NP (DT a) (PRN (-LRB- -LRB-) (NP (NN n)) (-RRB- -RRB-)) (NN population))) (. .)))