000 02014nam a2200205 4500
001 UPMIN-00000009303
005 20220921142333.0
040 _aDLC
_cDLC
_dupmin
041 _aeng
090 _aLG993.5 2004
_bB4 N54
100 1 _aNiez, Vanessa Mar M.
245 0 0 _aAre birds important pollinators of sago palm, Metroxylon sagu Rottb.? /
_cVanessa Mar M. Niez
502 _aThesis (BS Biology) -- University of the Philippines Mindanao, 2004
300 _a43 leaves
260 _c2004
520 _aBirds species associated with flowering sago palms in three sampling areas of Agusan del Sur were studied. Ten birds species were observed from three flowering sago palms. Of these, four species were identified as foragers, namely: Nectarinia jugularis. Nectarinia sperata, Loriculus philippensis, and Dicaeum trogonostigma while six species were classified as visitants, namely: Alauda gulgula, artamus leucorhynchus, Lalage nigra, Corvus macrorhynchos, pycnonotus goiavier and Hypsipetes philippinus. Regardless of foraging species, the highest relative abundance was 58 individual birds. The feeding rate was from 49 to 55% per day indicating a continuous substantial consumption of nectars by foraging birds. The average foraging bout was 1.83 min. per day, a relatively long period spent by a foraging bird on the palm, indicating sago as an important source of nectar. All three foraging bird species were consistently observed in all sample palms except L. philippensis which means to be restricted to the undisturbed forest. Activity patterns of the foraging birds were highly correlated with time period. The peak of bird activity was between 12:00 noon and 3:00PM which coincided with the complete opening of sago flowers. However, no pollens were isolated from the body parts of twelve birds captured, suggesting that the birds are commensals. Thus, this study did not elicit birds as important pollinators of sago palm
658 _aUndergraduate Thesis
_cBIO200,
_2BSB
905 _aFi
905 _aUP
999 _c330
_d330