( activity ( ( ( decreases ( with ( ( light ( intensity increase ) ) ( in ( nocturnal animals ) ) ) ) ) ( ( circannual rhythm ) ( also ( circannian rhythm ) ) ) ) ; ) )
(ROOT (S (NP (NN activity)) (VP (VBZ decreases) (PP (IN with) (NP (NP (JJ light) (NN intensity) (NN increase)) (PP (IN in) (NP (JJ nocturnal) (NNS animals))))) (NP (NP (JJ circannual) (NN rhythm)) (VP (ADVP (RB also)) (VBN circannian) (NP (NN rhythm))))) (: ;)))
activity decreases with light intensity increase in nocturnal animals circannual rhythm also circannian rhythm;
(ROOT (S (NP (JJ Circannual) (JJ behavioral) (NNS rhythms)) (VP (VBP are) (VP (VBN linked) (PP (TO to) (NP (NP (DT the) (JJ yearly) (NN cycle)) (PP (IN of) (NP (NNS seasons))))))) (. .)))