One example, in which both plant and animal alkanes play a role, is the ecological relationship between the sand bee (Andrena nigroaenea) and the early spider orchid (Ophrys sphegodes); the latter is dependent for pollination on the former.
wˈʌn ɛɡzˈæmpəl, ɪnwˌɪtʃ bˈoʊθ plˈænt ænd ˈænɪməl ˈælkeɪnz plˈeɪ ɐ ɹˈoʊl, ɪz ðɪ ˌɛkəlˈɑːdʒɪkəl ɹᵻlˈeɪʃənʃˌɪp bᵻtwˌiːn ðə sˈænd bˈiː ˈændɹɛnə nˈɪɡɹoʊˌɛniə ænd ðɪ ˈɜːli spˈaɪdɚɹ ˈɔːɹkɪd ˈɑːfɹiz sfˈɛɡoʊdz; ðə lˈæɾɚɹ ɪz dᵻpˈɛndənt fɔːɹ pˌɑːlᵻnˈeɪʃən ɔnðə fˈɔːɹmɚ.