Cross-Site: Groundwater Influences on the Littoral Communities of Lakes: Recent and Long Term Impacts

地下水生态学这一新兴领域断言，某些生物群是地下水特有的居民，地下水和地表水生物群之间存在着重要的联系。 一个假说是地下水流影响湖泊中底栖藻类的种类组成。 在这里，我们建议严格解决重要的短期和长期地下水/生物多样性的相互作用，由波光粼粼的内文斯湖，MI和威廉斯湖，MN。 该研究将评估地下水提供的营养物质如何影响排放和补给地点的底栖硅藻物种组成，排放的特征硅藻的分散如何有助于湖泊内硅藻多样性，以及如何在沉积物芯中跟踪地下水耦合的长期后果。 拟议的调查将扩大和补充三个地点的长期研究和周围区域研究。

The emerging new field of groundwater ecology asserts that certain biota are characteristic residents of groundwater and that there are important couplings between groundwater and surface-water biota. One hyopthesis is that groundwater flow influenced benthic algal species composition in lakes. Here we propose to critically address important short-and long-term groundwater/biotic diversity interaction by Sparkling Lake Nevins Lake, MI and Williams Lake, MN. The research will assess how nutrients delivered by groundwater influence the species composition benthic diatoms at discharge and recharge sites, how dispersal of characteristic diatoms from that discharge contributes to within-lake diatom diversity,, and how the long-term consequences of groundwater coupling can be followed in sediment cores. The proposed investigations would expand and complement long-term studies at the three sites and surrounding regional studies.