A phenology model for tropical species that flower multiple times each year

A phenology model for tropical species that flower multiple times each year
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每年多次开花的热带物种的物候模型

DOI:
10.1111/1440-1703.1017
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发表时间:
2019
影响因子:
2
通讯作者:
Muller-Landau, Helene C.
Muller-Landau, Helene C.
中科院分区:
环境科学与生态学4区
文献类型:
--
作者:
Wright, S. Joseph;Calderón, Osvaldo;Muller-Landau, Helene C.

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为温带和北方植物开发的物候模型预测每年单一的、种群水平的首次开花日期。这些模型不能适应湿润热带森林中每年开花多次的物种,也不能适应具有普查间隔而不是每日时间分辨率的开花数据。在这里,我们提出了一个新的模型框架,能够从普查数据中预测多个年度开花事件的时间。我们扩展了最近的一个模型,该模型预测热带开花概率作为发生在人口普查日期的离散事件,通过整合人口普查之间所有日期的预测开花概率。我们用29年的日气候和周开花记录来评估我们的模型,这些记录来自巴拿马Barro Colorado岛的hybanthus prunifolius(Violaceae)和handroanthus guayacan(Bignoniaceae)。先前的实验表明,这两种植物都是在旱季大雨打断长时间的干旱期后不久开花的。我们的模型捕捉到了降雨事件的序列。最佳拟合模型参数与先前的实验结果一致。这一匹配表明,新的模型框架将为其他潮湿的热带森林物种提供新的见解。
Phenology models developed for temperate and boreal plants predict a single, population‐level first flowering date for each year. These models cannot accommodate species that flower multiple times each year in humid tropical forests nor flowering data with census‐interval rather than daily temporal resolution. Here, we present a new model framework able to predict the timing of multiple annual flowering events from census data. We extend a recent model, which predicted tropical flowering probabilities as discrete events occurring on census dates, by integrating predicted flowering probabilities over all dates between censuses. We evaluate our model against 29 years of daily climate and weekly flowering records forHybanthus prunifolius(Violaceae) andHandroanthus guayacan(Bignoniaceae) from Barro Colorado Island, Panama. Previous experiments demonstrate that both species flower shortly after a heavy, dry‐season rain interrupts an extended dry period. Our model captures this sequence of rainfall events. Best‐fit model parameters are consistent with previous experimental results. This match suggests the new model framework will provide novel insights for other humid tropical forest species.
不规则的气流引发亚洲非季节性热带森林的大规模开花
DOI: --
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影响因子: --
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