Latest SCI publications

Latest Projects

Research project (§ 26 & § 27)
Duration : 2017-03-01 - 2018-12-31

The von Bertalanffy equation was developed in the 1940s and has since been the almost universal biologically motivated model to describe the ontogenetic growth of different species; it is characterized by the metabolic exponents a = 2/3, b = 1. West et al. (1997, 2001) suggested another pair of metabolic exponents (a = 2/3, b = 1) and provided biological reasoning for this choice. This project proposes biological reasoning for yet two other exponent pairs based on the ideas of Bertalanffy and West about metabolism and on a model of Parks (1982) about the dependency of growth on food intake.
Research project (§ 26 & § 27)
Duration : 2018-07-03 - 2022-08-02

The alien invasive Ambrosia artemisiifolia (Ragweed) is established already along the Bavarian roadsides. 7 workpackages will help to define the optimal management tools to fight ragweed. 1: Projektleitung, Koordination und Management; 2: State-of-the-Art-Report; 3: Habitaterweiterung Böschungen; 4: Regional optimierte Schnittrhythmen; 5: Konkurrenzsaaten; 6: Behandlung kontaminierten Materials; 7: Dokumentation und Information. The project will run about 4 full season including pre- and post effectivity measures (soil seed bank).
Research project (§ 26 & § 27)
Duration : 2018-10-01 - 2021-09-30

For several decades a strong population increase of wild boars (Sus scrofa) is recognized in Central Europe. Serious economic and ecological problems, such as damage caused to agriculture, the risk of diseases (Classical & African swine fever), traffic accidents, and the predation of other species. Numerous studies conclude intensive hunting as necessary response to this increase (Liebl et al. 2005; Wilson 2005; Sodeikat & Pohlmeyer 2007; Linderoth et al. 2010; Pegel 2012; Keuling et al. 2013; Bengsen et al. 2014). In addition to this, a few studies on the efficiency of common hunting methods and their impact on the wild boars have been carried out (Maillard & Fournier 1995; Sodeikat & Pohlmeyer 2002; Sodeikat & Pohlmeyer 2003; Fernández-Llario et al. 2003; Linderoth 2008; Keuling et al. 2008). In recent years, new hunting techniques such as night vision scopes (NVS) or silencers (SI) have been tested for their technical usability to hunt wild boars more efficient (Neitzel 2013, Hahn 2014, Schatz 2014). However, the reactions of the wild boars to these hunting techniques are still unknown and whether the use of NVS and / or SI is a possibility to regulate the wild boar density. The aim of this study, which is considered to be the first of it in this field of research, is to investigate the spatio-temporal effects on the highly adaptable wild boars hunted by NVS and SI. The behavior of the animals is analyzed in different types of hunting methods and the associated different hunting pressure. To achieve this goal, the spatio-temporal behaviour of wild boars should be compared between areas with four scenarios where each is subject of a different hunting strategy: Scenario I: Conventional hunting without the use of NVS and SI; Scenario II: Experimental hunting using NVS; Scenario III: Experimental hunting using SI. In a fourth control area, the spatio-temporal behaviour of wild boar without hunting (scenario IV) is analyzed. The study area is a 9.300 ha large river landscape of the forestry enterprise Nationalparkbetrieb Donau-Auen. Entirely groups of sounders are captured with a new, innovative net-up trap to catch the animals practicable, efficient and human. The animals will be monitored with a new promising and cost-effective telemetry technology (RSSI; Orion-Network) with active RFID eartags over a period of three years. Hunting logs from the hunters provide additional information about the hunting pressure, behaviour of the animals, night-brightness and the hunting success of the different hunting scenarios. On the basis of all results, hunting strategies will be developed for an efficient and humanely management of wild boars populations.

Supervised Theses and Dissertations