The effects of a small low-head dam on benthic invertebrate communities and particulate organic matter storage in the Ilm stream (Thuringia, Germany) [Elektronische Ressource] / von Jens Arle

The effects of a small low-head dam on benthicinvertebrate communities and particulate organicmatter storage in the Ilm stream(Thuringia / Germany)Dissertationzur Erlangung des akademischen Gradesdoctor rerum naturalium (Dr. rer. nat.)vorgelegt demRat der Biologisch-Pharmazeutischen-Fakultätder Friedrich-Schiller-Universität JenavonJens Arlegeboren am 19. Februar 1975 in GeraJena, im Januar 2005Contents iTable of contentsChapter 1General introduction1. Introduction...................................................................................................... 1Chapter 2The effects of a small dam on invertebrate communities and thedistribution of particulate organic matter storage (POM)2.1 Introduction...................................................................................................... 72.2 Methods........................................................................................................... 102.3 Results ............................................................................................................ 212.3.1 Abiotic parameters .......................................................................................... 212.3.2 Spatial and seasonal variability of invertebrate communities.......................... 232.3.3 Functional feeding group structure and community composition .................... 252.3.4 Pool-Riffle comparison for invertebrate community variables ......................... 262.3.