Proximate factors causing mast seeding in Fagus crenata: the effects of resource level and weather cues
Proximate factors causing mast seeding in Fagus crenata: the effects of resource level and weather cues
复制标题
导致水青冈肥大播种的直接因素：资源水平和天气因素的影响
作者：
H. Kon;T. Noda;K. Terazawa;H. Koyama;M. Yasaka
为了研究导致日本北部北海道水青冈 (Fagus crenata Blume) 大量播种的直接因素，我们分析了与先前繁殖和天气条件相关的 13 年种子产量时间序列。在自相关分析中，我们观察到对数转换的总种子作物在 1 年时间滞后中存在显着的负相关。这表明内部资源动态对于肥大播种很重要。开花前一年4月下旬至5月中旬，种子总产量与最低气温呈强烈负相关。 4 月下旬至 5 月中旬，所有五个地点种子作物总产量的临界最低温度比 22 年（1979 年至 2000 年）最低温度平均值高出约 1.0 °C，高于该最低温度的种子产量很少。这些结果表明，天气因素会触发 F. crenata 繁殖的停止。包含上一年繁殖和最低温度的回归模型解释了 57....
To examine the proximate factors causing mast seeding in Fagus crenata Blume in Hokkaido, northern Japan, we analyzed a 13-year time series of seed production in relation to both previous reproduction and weather conditions. In an autocorrelation analysis we observed a significant negative correlation in 1-year time lags for the log-transformed total seed crop. This indicates that internal resource dynamics are important for mast seeding. A strong negative correlation was observed between the total seed crop and minimum temperature from late April to mid-May in the year preceding flowering. The critical minimum temperature from late April to mid-May for total seed crop at all five sites was about 1.0 °C higher than the 22-year (1979–2000) mean of the minimum temperatures, above which very few seeds were produced. These results show that a weather cue triggers the cessation of reproduction in F. crenata. Regression models that included reproduction in the previous year and minimum temperature explained 57....
模拟植物种群间歇和同步繁殖的空间动态：小规模花粉耦合和大规模气候的影响。
DOI：
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发表时间：
2004
期刊：
Population Ecology 46
影响因子：
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作者：
Satake;A.;Bjornstad;O.N.;Satake A.
通讯作者：
Satake A.