Waiting for wasps: Consequences for the pollination dynamics of Ficus pertusa L
Waiting for wasps: Consequences for the pollination dynamics of Ficus pertusa L
复制标题
DOI：
10.1111/j.1365-2699.1996.tb00007.x
复制
发表时间：
1996-07-01
影响因子：
3.9
通讯作者：
Bronstein, JL
中科院分区：
文献类型：
--
作者：
Anstett, MC;Kjellberg, F;Bronstein, JL
树木的授粉依赖于在花内繁殖的互惠黄蜂。直到最近，人们还认为无花果作物授粉的时间窗口很短。因此，无花果的授粉被认为取决于黄蜂在寻找可接受树木方面的极端效率。在这种情况下，关于哥斯达黎加无花果树Ficus pertusa L.的大量数据非常难以理解。在我;： pertusa，不同作物的无花果在其发育的不同阶段吸引黄蜂。在发育过程中最早吸引黄蜂的作物是被黄蜂光顾最多的作物，但在每棵无花果的基础上，成熟的传粉者后代和种子最少。利用传粉媒介种群动态和田间数据的模拟模型，我们发现(i)作物的吸引力是延长的，（ii）黄蜂在选择时更喜欢大无花果，（iii）观察到的作物优先早期访问的模式可以用传粉媒介丰度的时间变化来解释。这强调了种群水平机制对解释无花果/无花果黄蜂共生的重要性。
Pollination of fg trees depends on mutualist wasps that reproduce within their flowers. Until recently, it was assumed that there was a short window of time during which a fig crop could be pollinated. Hence, pollination of figs was thought to depend on extreme efficiency of the wasps in locating receptive trees. In that context, extensive data on the Costa Rican fig tree Ficus pertusa L. have been very difficult to understand. In I;: pertusa, figs of different crops attract wasps at different stages of their development. The crops that attract wasps the earliest in their development are the most heavily visited ones, but mature the fewest pollinator offspring and seeds on a per-fig basis. Using simulation models of pollinator population dynamics and field data, we show that (i) attractiveness of a crop is prolonged, (ii) wasps prefer large figs when given a choice, and (iii) the observed pattern of preferential early visitation of crops can be explained by temporal variations in pollinator abundance. This emphasizes the importance of population-level mechanisms to explain the fig/fig wasp mutualism.