Agami Moshe, Waisel Yoav
The Jacob Blaustein Institute for Desert Research, Ben Gurion University of the Negev, Sede Boqer Campus, 84990, Israel.
Department of Biology, Ben Gurion University of the Negev, Sede Boqer Campus, 84990, Israel.
Oecologia. 1986 Sep;68(3):473-475. doi: 10.1007/BF01036757.
The effect of passage ofNajas marina L. seeds through the digestive system of the common mallard duck (Anas platyrhynchos) on their germinability was investigated. Most of the seeds (∼70%), which were consumed by the birds were digested. However, germination of the remaining seeds was remarkably improved. Germination of seeds whose seed coats were mechanically cracked was also higher than that of the controls and equalled the germination percentage of the mallard-treated seeds. Seeds ofNajas are retained in the diegestive tracts of mallards for over 10 hours. Thus, as mallards are strong flyers, the seeds ofNajas may be distributed over long distances.
研究了小茨藻（Najas marina L.）种子通过绿头鸭（Anas platyrhynchos）消化系统后对其发芽能力的影响。鸟类摄入的大部分种子（约70%）被消化。然而，剩余种子的发芽率显著提高。种皮被机械破裂的种子的发芽率也高于对照组，且与经绿头鸭处理的种子的发芽率相当。小茨藻种子在绿头鸭消化道中停留超过10小时。因此，由于绿头鸭飞行能力强，小茨藻种子可能会被远距离传播。
