CRB: Tropical Forest Regeneration: Influence of Animal Seed-dispersers

9301961 Moermond这项研究将在卢旺达非洲山地热带森林Nyungwe森林的两个地点调查不同食果动物传播种子对树木更新动态的影响。林木的自然更新过程依赖于一套基本的过程：种子生产、种子传播、苗木建立和苗木对生殖成虫的存活。这项研究将特别集中在其中的两个过程：种子传播和幼苗建立。将根据树种替换模式来调查分散剂物种之间的差异的后果。这将通过1)描述和模拟由选定的动物传播者物种为具有代表性的树种系列产生的种子传播模式，以及2)通过评估这些树木在森林的主要植被斑块类型(封闭林、次生林和开阔地)中的苗木建立的相对成功。在不同的森林斑块类型中，将采用母树下和远离母树的苗木的成活和建立的比较来评价扩散的相对重要性。这项研究在一个动物传播者充足的地点(乌温卡地点)产生的预测将与种子雨量和树木更替估计进行对比测试。然后，将观察到的种子雨模式、树木更替估计和森林组成与那些位于森林边缘、有一套贫困的分散器(Kitabi站点)的模式进行比较。该网站不仅将提供和评估分散剂损失的明显后果，还将提供一个关键案例，用于测试预测模型的适用性和威力。拟议的研究既涉及保护生物学理论，也涉及其在热带森林管理中的应用。然而，这是有问题的，这取决于所使用的系统，尽管Fries(1874)认为多孔菌科是无菌目(具有非片层状膜孔的真菌)中的两个科之一，更新的工人！！！F(Times New Roman符号&amp；Arial“h e e！！-Gayle Edmonds Gayle Edmonds

9301961 Moermond This research will investigate the consequences of seed-dispersal by different animal fruit-eaters on tree regeneration dynamics at two sites within the Nyungwe forest, an African montane tropical forest in Rwanda. The process of natural regeneration of forest trees depends on a basic set of processes: seed production, seed dispersal, seedling establishment, and survival of seedlings to reproductive adults. This research will focus particularly on two of these processes: seed dispersal and seedling establishment. The consequences of differences among disperser species will be investigated in terms of tree species replacement patterns. This will be done 1) by describing and modeling the pattern of seed dispersion generated by selected animal disperser species for a representative series of tree species, and 2) by assessing the relative success of seedling establishment of those trees among the principal vegetation patch types of the forest(closed forest, secondary forest, and openings). %%% Comparison of survival and establishment of seedlings under the parent tree and away from the parent in different forest patch types will be used to evaluate the relative importance of dispersal. Predictions generated by the study at a site with full complement of animal dispersers (Uwinka site) will be tested against measures of seed rain and tree replacement estimates. The observed patterns of seed rain, tree replacement estimates, and forest composition will then be compared to those at a forest-edge with an impoverished suite of dispersers (Kitabi site). This site will not only provide and assessment of the apparent consequences of loss of dispersers, but will provide a critical case in which to test the applicability and the power of the predictive model. The proposed research relates both to the theory of conservation biology and its application to tropical forest management. is problematical however, depending upon whose system is being used although Fries (1874) considers the Polyporaceae to be one of two families within the order Aphyllophorales (fungi with non lamellate hymenophores), more recent workers ! ! ! F ( Times New Roman Symbol & Arial " h e e ! - Gayle Edmonds Gayle Edmonds