SGER: Initial Response of Stream Biota to Catastrophic Flooding; Interaction Between Flood Magnitude, Watershed Physiography and Landscape Alteration

霍金斯说，拟议中的研究将量化加州几条山区河流中蒸汽生物群对灾难性洪水的最初反应。 我们的主要假设是，洪水对生物区系的影响程度是由两个自然发生的流域之间的差异，在其对洪水的敏感性和土地利用的数量，已发生在每个流域。 为了验证这一假设，将重新采样流在多达45个流域，以前在干旱的1988年和1989年采样，并比较前和后洪水的丰度和物种发生在每个流域。

Hawkins the proposed research will quantify the initial response of steam biota to catastrophic flooding in several mountainous streams of California. Our primary hypothesis is that the magnitude of effect that flooding has on biota is influenced by both naturally occurring differences among watersheds in their sensitivity to flooding and the amount of land use that has occurred within each watershed. To test this hypothesis, will resample streams in up to 45 watersheds that were previously sampled during the drought years of 1988 and 1989 and compare pre- and post-flood abundances and species occurrence in each watershed.