(S (S (BASENP (PRP They)) (VP (VBP suggest) (SBAR (IN that) (S (BASENP (NN hybridization)) (VP (VP (MD may) (VP (VB be) (ADJP (ADJP (RBR more) (JJ common)) (SBAR (IN than) (SBAR (VP (ADVP (RB previously)) (VBN recognized))))))) (CC and) (VP (MD may) (VP (VB be) (NP (NP (BASENP (DT a) (NN way)) (SBAR (S (BASENP (NNS species)) (VP (VBP deal) (PP (IN with) (NP (BASENP (NN loss)) (PP (IN of) (BASENP (PRPD their) (NNS habitats))))))))) (SBAR (WHADVP (WRB when)) (S (BASENP (DT the) (NN environment)) (VP (VBZ is) (VP (VBG changing))))))))))))) (PERIOD .))