LTREB: Long-term Demography of Florida Scrub Plants

自1988年以来，阿奇博尔德生物站的工作人员收集了佛罗里达州10种灌丛植物的数千种植物的人口统计学和生态学数据，以回答基本的生态学问题。这些问题包括种群生存能力是否受种群规模和火灾制度的影响，长期种群动态和灭绝是否受环境随机性和罕见事件的控制，长期趋势是否可以从短期数据中预测，甚至局部动态也不稳定的超种群持久性是否可能。在过去的10年里，我们定期对佛罗里达灌木种群进行研究，使用一致的测量方法，得出总结生存、生长、繁殖力和招募的数据，用于种群建模。这项研究与遗传学、育种系统、授粉、种子休眠和微生境要求的深入调查相结合。这些植物数据集是长期的，比大多数其他用于模拟种群生存能力的研究考虑了更多的种群。这些长期数据集可以表征环境随机性，这在模拟种群生存能力和灭绝方面至关重要。从一些种群收集的数据量化了微生境和自然干扰（火灾）方面的人口变化，并允许通过火灾周期和跨元种群建立种群生存能力模型。

9815370MengesSince 1988, staff at the Archbold Biological Station have collected demographic and ecological data on thousands of plants of 10 Florida scrub species to answer fundamental ecological questions. Among these are whether population viability is affected by population size and fire regimes, whether long-term population dynamics and extinction are controlled by environmental stochasticity and rare events, whether long-term trends can be predicted from shorter-term data, and whether metapopulation persistence is likely even of local dynamics are unstable. Florida scrub populations have been studied at regular intervals over the last 10 years using consistent measurements, resulting in data summarizing survival, growth, fecundity, and recruitment for use in population modeling. This research has been coupled with intensive investigations of genetics, breeding systems, pollination, seed dormancy and microhabitat requirements. These plant data sets are longer-term and consider more populations than most other studies used to model population viability. These long term data sets allow characterization of environmental stochasticity, essential in modeling population viability and extinction. Data collection from a number of populations quantifies demographic variation with respect to microhabitat and the natural disturbance regime (fire) and allows modeling of population viability through the fire cycle and across metapopulations.