Reconstruction of seagrass dynamics: age determinations and associated tools for the seagrass ecologist
Reconstruction of seagrass dynamics: age determinations and associated tools for the seagrass ecologist
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海草动态重建：海草生态学家的年龄测定和相关工具
DOI：
10.3354/meps107195
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发表时间：
1994
影响因子：
2.5
通讯作者：
J. Vermaat
中科院分区：
文献类型：
--
作者：
C. Duarte;N. Marbà;N. Agawin;J. Cebrian;S. Enríquez;Fortes;Margarita E. Gallegos;M. Merino;B. Olesen;K. Sand‐Jensen;J. Uri;J. Vermaat
所有的海草都是根茎状植物，通过有限的一组模块的重复生长。因此，它们过去的生长历史可以从长寿命根茎上的枯萎的叶子和花朵留下的疤痕或季节性的信号中重建，这些信号在其模块的频率和大小上留下了印记。我们在这里提供的基本基础和假设，这些重建技术和计算涉及到他们的应用。然后，我们展示了它们的可靠性和潜力quantlfy一系列的生态过程，如植物人口，叶和rhlzome生产，开花强度，和海草对人为干扰的反应，根据我们最近的研究地中海，加勒比海和印度洋-太平洋海草物种。重建技术也被证明是有用的，在演示的作用，海草作为示踪剂的sedadministers运动的海草床和速度的殖民化和扩展的海草补丁。这些重建技术应该提供一个强大的工具，以提高我们的知识海草物种和人口从偏远地区的基础上一个单一的或只是几次访问，这应该，因此，让我们能够利用有限的资源，许多海草草甸采样，从而产生一个强大的基础比较海草生态学的研究和测试以前应用于陆地植物种群的理论。
All seagrasses are rhizomatous plants that grow by reiteration of a limited set of modules. Their past growth history can therefore be reconstructed from the scars left by abscised leaves and flowers on the long-lived rhizomes or the seasonal slgnals Imprinted in the frequency and size of their modules. We provide here the basic foundations and assumptions of these reconstruction techniques and the calculations involved in their application. We then show their reliability and potential to quantlfy an array of ecological processes, such as plant demography, leaf and rhlzome production, flowering ~ntensity, and seagrass responses to anthropogenic perturbations, based on our recent studies of Mediterranean, Caribbean and Indo-Pacific seagrass species. Reconstruction techniques have also proven useful in demonstrating the role of seagrasses as tracers of sedlment movement over seagrass beds and the rates of colonisation and expansion of seagrass patches. These reconstruction techniques should provide a powerful tool to improve our knowledge of seagrass species and populations from remote areas based on a single or just a few visits This should, therefore, allow us to sample many seagrass meadows using limited resources, thus generating a strong foundation for the study of comparatlve seagrass ecology and testing of theories previously applied to terrestrial plant populations.