( ( Effects ( of ( ( mass extinctions ) ( on ( biodiversity ( , ( ( ( Nature , ) 381 ) , ) ) ) ) ) ) ) ( 146-148 . ) )
(ROOT (S (NP (NP (NNPS Effects)) (PP (IN of) (NP (NP (JJ mass) (NNS extinctions)) (PP (IN on) (NP (JJ biodiversity) (, ,) (NNP Nature) (, ,) (CD 381) (, ,)))))) (VP (VBZ 146-148)) (. .)))
Effects of mass extinctions on biodiversity, Nature , 381, 146-148.
(ROOT (S (NP (NP (ADJP (JJ Sudden) (CC and) (JJ dramatic)) (NNS losses)) (PP (IN of) (NP (NN biodiversity)))) (VP (VBP are) (VP (VBN called) (NP (JJ mass) (NN extinction)))) (. .)))