( ( ( ( ( Biodiversity ( ( is ( most commonly ) ) ( discussed ( in ( terms ( of ( ( the number ) ( of species ) ) ) ) ) ) ) ) , ) but ) ( it ( ( can also ) ( be ( phrased ( in ( terms ( of ( ( the amount ) ( of ( ( phenotypic ( ( -LRB- ( ( ( ( ( e.g. , ) physiological ) , ) morphological ) -RRB- ) ) space ) ) ( that ( ( ( ( a ( given set ) ) ( of species ) ) occupies ) ( -LRB- ( ( ( see also ) ( Cambrian explosion ) ) -RRB- ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (NNP Biodiversity)) (VP (VBZ is) (ADVP (RBS most) (RB commonly)) (VP (VBN discussed) (PP (IN in) (NP (NP (NNS terms)) (PP (IN of) (NP (NP (DT the) (NN number)) (PP (IN of) (NP (NNS species)))))))))) (, ,) (CC but) (S (NP (PRP it)) (VP (MD can) (ADVP (RB also)) (VP (VB be) (VP (VBN phrased) (PP (IN in) (NP (NP (NNS terms)) (PP (IN of) (NP (NP (DT the) (NN amount)) (PP (IN of) (NP (NP (JJ phenotypic) (PRN (-LRB- -LRB-) (NP (NNP e.g.)) (, ,) (NP (NN physiological)) (, ,) (NP (NN morphological)) (-RRB- -RRB-)) (NN space)) (SBAR (WHNP (WDT that)) (S (S (NP (NP (DT a) (VBN given) (NN set)) (PP (IN of) (NP (NNS species)))) (VP (VBZ occupies))) (PRN (-LRB- -LRB-) (VP (VB see) (ADVP (RB also)) (NP (NNP Cambrian) (NN explosion))) (-RRB- -RRB-)))))))))))))) (. .)))
Biodiversity is most commonly discussed in terms of the number of species, but it can also be phrased in terms of the amount of phenotypic (e.g., physiological, morphological) space that a given set of species occupies (see also Cambrian explosion).
(ROOT (S (NP (NNP Biodiversity)) (VP (VBZ is) (NP (NP (DT the) (NN term)) (PP (IN for) (NP (NP (DT the) (NN measurement)) (PP (IN of) (NP (NP (DT the) (NN amount)) (PP (IN of) (NP (NP (NN variation)) (PP (IN of) (NP (NP (NNS species)) (PP (IN in) (NP (DT a) (VBN given) (NN area))))))))))))) (. .)))
Biodiversity is the term for the measurement of the amount of variation of species in a given area.