Forest diversity in fragmented landscapes of northern Ethiopia and implications for conservation [Elektronische Ressource] / Ermias Aynekulu Betemariam

Forest diversity in fragmented landscapes of northern Ethiopia and implications for conservation. Dissertation zur Erlangung des Doktorgrades (Dr. rer. nat) der Mathematisch-Naturwissenschaftlichen Fakultät der Rheinischen Friedrich-Wilhelms-Universität Bonn vorgelegt von ERMIAS AYNEKULU BETEMARIAM aus ADDIS ABABA Bonn 2011 1. Referent: PD Dr. H.J. Boehmer 2. Referent: Prof. Dr. P.L.G. Vlek Tag der Promotion: 30.09.2010 Erscheinungsjahr: 2011 Diese Dissertation ist auf dem Hochschulschriftenserver der ULB Bonn http://hss.ulb.uni-bonn.de/diss_online elektronisch publiziert ABSTRACT Deforestation and habitat fragmentation that arise largely due to the conversion of forests to other agricultural land-use types and over-utilization of forest resources to satisfy the food and energy requirements of the increasing population are major environmental concerns in northern Ethiopia. Understanding plant species diversity and spatial distribution along environmental gradients is crucial in the management of the remnant forest ecosystems. However, the ecology of the forest remnants in northern Ethiopia is poorly studied.