Ochoa-Gaona Susana, Hernández Isidro Pérez, de Jong Bernardus H J
El Colegio de la Frontera Sur, Departamento de Agroecologia, Apdo. Postal 1042, Admón. de Correos de Tabasco 2000. C.P. 86031 Villahermosa, Tabasco, México.
Rev Biol Trop. 2008 Jun;56(2):657-73.
Between August 2003 and August 2005 we registered the flowering and fruiting of 75 tree species (341 individual trees) in a tropical rain forest at Tenosique, Tabasco, Mexico. Monthly we checked five transects (500 m long; 5 m wide). To test the homogeneity of flowering and fruiting during the year, and between adjacent months, we applied a chi2 test. The flowering was bimodal, with a highest peak in March and April, coinciding with the dry season, and a second lower peak in July when precipitation is relatively low. The highest number of fruiting tree species occur between May and July, with its peak in May. Each of the most common botanical families showed a particular phenological pattern. Monthly rainfall and the number of species flowering or fruiting were not significantly correlated. This means that trees are flowering and fruiting all year long, with seasonal increases of both phenological phenomena in the dryer periods. We conclude that phenological patterns vary between individuals and between years and are not seasonally correlated. The data we generated are relevant to program the best periods of seed collections according to individual or groups of species, as part of forest management and conservation practices.
2003年8月至2005年8月期间，我们记录了墨西哥塔巴斯科州特诺西克一处热带雨林中75种树木（341棵单株树）的开花和结果情况。我们每月检查五条样带（每条长500米，宽5米）。为了检验一年中以及相邻月份之间开花和结果的同质性，我们进行了卡方检验。开花呈双峰模式，3月和4月出现最高峰，这与旱季重合，7月降水相对较少时出现第二个较低的峰值。结果树种类最多的时期出现在5月至7月之间，5月达到峰值。每个最常见的植物科都呈现出特定的物候模式。月降雨量与开花或结果的物种数量没有显著相关性。这意味着树木全年都在开花和结果，在较干旱时期这两种物候现象都有季节性增加。我们得出结论，物候模式在个体之间以及年份之间存在差异，并且与季节无关。我们生成的数据对于根据单个物种或物种组规划最佳采种期具有参考价值，这是森林管理和保护措施的一部分。
