Person: Schmolz, Erik
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Veröffentlichung An assessment of animal welfare impacts in wild Norway rat (Rattus norvegicus) management(2022) Baker, Sandra; Ayers, M.; Beausoleil, Ngaio; Schmolz, ErikNorway rats (Rattus norvegicus) are considered one of the most significant vertebrate pests globally, because of their impacts on human and animal health. There are legal and moral obligations to minimise the impacts of wildlife management on animal welfare, yet there are few data on the relative welfare impacts of rat trapping and baiting methods used in the UK with which to inform management decisions. Two stakeholder workshops were facilitated to assess the relative welfare impacts of six lethal rat management methods using a welfare assessment model. Fifteen stakeholders including experts in wildlife management, rodent management, rodent biology, animal welfare science, and veterinary science and medicine, participated. The greatest welfare impacts were associated with three baiting methods, anticoagulants, cholecalciferol and non-toxic cellulose baits (severe to extreme impact for days), and with capture on a glue trap (extreme for hours) with concussive killing (mild to moderate for seconds to minutes); these methods should be considered last resorts from a welfare perspective. Lower impacts were associated with cage trapping (moderate to severe for hours) with concussive killing (moderate for minutes). The impact of snap trapping was highly variable (no impact to extreme for seconds to minutes). Snap traps should be regulated and tested to identify those that cause rapid unconsciousness; such traps might represent the most welfare-friendly option assessed for killing rats. Our results can be used to integrate consideration of rat welfare alongside other factors, including cost, efficacy, safety, non-target animal welfare and public acceptability when selecting management methods. We also highlight ways of reducing welfare impacts and areas where more data are needed. © 2022 Universities Federation for Animal WelfareVeröffentlichung Experimental Design for Efficacy Testing of Baits Against Monomorium pharaonis (Hymenoptera: Formicidae)(2014) Krüger, Anne; Klasen, Jutta; Schmolz, ErikIn the European Union, baits against pharaoh ants (Monomorium pharaonis) have to be authorized asbiocidal products. The dossier to be submitted for authorization of the product has to include a proof of productefficacy. No consistent test standards have been established by the European Commission. A test method forefficacy testing of baits against Pharaoh ants was published by the Federal Environment Agency Germany in1998 and is in use for efficacy tests according to the German Infectious Diseases Protection Act. The test systemis a test arena of interconnected test boxes (each 25 cm x 25 cm). In our study, this test system was comparedwith a dish (diameter 23 cm) as test arena. Test duration was 50 days for both arena types (boxes and dish) forchoice and 20 days for no-choice tests. The results for choice tests revealed that in the box system more colonieswere eradicated (boxes: 75%, dishes: 0%) within 50 d, and more queens died (average number of survivingqueens was 0.5 in boxes and 29.7 in dishes).
Quelle: Krüger, Anne; Klasen, Jutta Schmolz, Erik: Experimental Design for Efficacy Testing of Baits Against Monomorium pharaonis (Hymenoptera: Formicidae) / Anne Krüger ; Jutta Klasen ; Erik Schmolz. - graph. Darst. In: Proceedings of the 8th International Conference on Urban Pests / Gabi Mueller [Ed.] ; Reiner Pospischil [Ed.] ; William H. Robinson [Ed.]. - Zürich. - (2014), S. 239