摘要 : In a study in New Caledonia, the effect of ingestion by Drepanoptila holosericea on the germination of Santalum austrocaledonicum seeds was investigated in order to determine if D. holosericea could be a potential disseminator of ... 展开 In a study in New Caledonia, the effect of ingestion by Drepanoptila holosericea on the germination of Santalum austrocaledonicum seeds was investigated in order to determine if D. holosericea could be a potential disseminator of S. austrocaledonicum. A total of 160 fully ripened fruits of S. austrocaledonicum were collected and prepared in four ways: (1) intact fleshy fruits were put into germination conditions on the day after collection; (2) seeds were manually extracted and rapidly washed and put into germination conditions; (3) seeds were physically scarified and processed for 2 h and put into germination conditions; and (4) fruits were fed to five captured D. holosericea, seeds were collected from droppings and then put into germination conditions. The seeds were monitored for 221 days. Non-treated fruits did not germinate. The passage of S. austrocaledonicum seeds through the digestive tract of the bird individuals significantly increased the germination indices compared with pulp removal. The length of seed dormancy was shortened following passage through the digestive tract. Compared with pulp removal, germinability was enhanced after ingestion by birds; however, physical scarification was more efficient. Germination index did not differ between ingestion and pulp removal, but it was lower than using physical scarification. 收起