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Artenvielfalt auf biologischen und nicht-biologischen Landwirtschaftsbetrieben in zehn europäischen Regionen Organic Eprints
Schneider, Manuel; Lüscher, Gisela; Jeanneret, Philippe; Arndorfer, Michaela; Bailey, Debra; Balacs, Katalin; Choisis, Jean-Pierre; Dennis, Peter; Fjellstad, Wendy; Fraser, M.; Frank, Thomas; Friedel, Jürgen K.; Gillingham, Pippa; Jerkovich, G.; Gomiero, Tiziano; Jongman, Rob; Kainz, Max; Moreno, Gerardo; Oschatz, M.-L.; Paoletti, Maurizio; Pointereau, Philippe; Sarthou, Jean-Pierre; Siebrecht, Norman; Sommaggio, D.; Vale, Jim; Wolfrum, Sebastian; Herzog, Felix.
One of the aims of organic farming is the protection of biodiversity. In the EU FP7 project BioBio, we studied the effect of organic farming on species numbers at farm level on 169 randomly selected organic and non-organic farms with mostly low to medium intensity in ten European regions. Using a preferential sampling scheme based on habitat mapping, numbers of plants, earthworms, spiders and bees were assessed at farm level. A global analysis across the ten regions shows that organic farms have significantly higher numbers of plant and bee species than non-organic farms. The effect of organic farming on earthworm and spider species numbers are also positive but insignificant. The effects in absolute terms are small and much smaller than the variation...
Tipo: Conference paper, poster, etc. Palavras-chave: "Organics" in general; Biodiversity and ecosystem services.
Ano: 2013 URL: http://orgprints.org/21413/1/21413_Schneider.pdf
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BIOBIO – Betriebsmanagement-Indikatoren für Biodiversität in biologischen und extensiven Anbausystemen Organic Eprints
Arndorfer, Michaela; Kainz, Maximilian; Siebrecht, Norman; Wolfrum, Sebastian; Friedel, Jürgen K..
In dem EU FP7-Projekt „BioBio“ soll ein allgemeines Set von Indikatoren für Biodiversität in biologischen und extensiven Anbausystemen in Europa entwickelt und getestet werden. Neben direkten Indikatoren für Habitat-, Arten- und genetische Diversität werden auch indirekte Indikatoren zur Bewirtschaftung der landwirtschaftlichen Betriebe und Flächen erfasst. In Fallstudien wird der Zusammenhang zwischen den ausgewählten Indikatoren, den Betriebsystemen und direkten Indikatoren untersucht. Die Auswahl der Indikatoren erfolgte nach wissenschaftlichen Kriterien sowie nach Gesichtspunkten der Praktikabilität und Anwendbarkeit. Hauptergebnis des Projektes wird ein Handbuch mit Factsheets der ausgewählten Indikatoren sein.
Tipo: Conference paper, poster, etc. Palavras-chave: Biodiversity and ecosystem services.
Ano: 2011 URL: http://orgprints.org/17604/6/Arndorfer_17604.pdf
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BIOBIO – Indikatoren für Biodiversität in ökologischen und ex-tensiven Anbausystemen Organic Eprints
Herzog, Felix; Arndorfer, Michaela; Bailey, Debra; Balázs, Katalin; Dennis, Peter; Dyman, Tetyana; Fjellstad, Wendy; Friedel, Jürgen K.; Garchi, Salah; Geijzendorffer, Ilse; Jeanneret, Philippe; Jongman, Rob; Kainz, Maximilian; Kölliker, Roland; Last, Luisa; Lüscher, Gisela; Moreno, Gerardo; Nkwiine, Charles; Paoletti, Maurizio; Pointereau, Philippe; Sarthou, Jean-Pierre; Schneider, Manuel; Siyka, Stoyanova; Targetti, Stefano; Viaggi, Davide; Wolfrum, Sebastian.
Organic and low-input farming systems provide habitats for wildlife on farmland. The EU FP7 project BIOBIO has identified a core set of 23 indicators relating to the diversity of habitats, of species, of crops and of livestock. Management indicators capturing the pressure on biodiversity are also proposed. The indicators were identified in an iterative process between scientists and stake-holders to make sure that they are not only scientifically sound but also practicable and attractive. They were tested in 12 case study regions on four major farm types. Allocating 0.25 % of the CAP budget to a farm scale biodiversity monitoring would allow to measure and analyse the indicators on 50,000 farms across Europe.
Tipo: Conference paper, poster, etc. Palavras-chave: Technology assessment; Biodiversity and ecosystem services; Consumer issues; Policy environments and social economy.
Ano: 2013 URL: http://orgprints.org/21318/1/21318_Herzog.pdf
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Indikatoren für die Vitalität von Lumbricus terrestris Populationen – Eine Anwendung von Partial Least Squares Pfadmodellen (PLS-PM) zur Analyse komplexer Zusammenhänge Organic Eprints
Wolfrum, Sebastian; Siebrecht, Norman; Papaja-Hülsbergen, Susanne; Lüscher, Gisela; Jeanneret, Philippe; Arndorfer, Michaela; Friedel, Jürgen K.; Paoletti, Mauricio G.; Kainz, Maximilian; Hülsbergen, Kurt-Jürgen; Herzog, Felix.
Information on biodiversity and related population parameters are of key importance for assessing ecosystem services or impacts of management decisions in agriculture. However information on this parameters is often not directly measurable. Indicators are a convenient way to gain information on these variables. Here we present Partial Least Squares Path Modeling (PLS-PM) to develop and evaluate complex indicators for biodiversity and related parameters. As an example we use data on Lumbricus terrestris from 76 plots on Bavarian mixed farms to create complex indicators for population viability, management intensity and site potential and model their causal relations.
Tipo: Conference paper, poster, etc. Palavras-chave: Surveys and statistics; Indicators and other value-laden measures; Soil biology; Biodiversity and ecosystem services.
Ano: 2013 URL: http://orgprints.org/21596/1/21596_wolfrum.pdf
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Bestimmung der Fledermausaktivität in Agroforstsystemen und angrenzenden Habitaten mittels N-mixture Modellen Organic Eprints
Wolfrum, Sebastian; Berninger, Eva; Göcen, Deniz; Huber, Julia; Obermaier, Sabine; Schmid, Harald; Siebrecht, Norman; Hülsbergen, Kurt-Jürgen.
Bat activity in agroforestry systems at the research station Scheyern was analyzed using a N-mixture model approach. Results show low bat activity but provide hints that agroforestry structures can increase bat activity in open agricultural habitats.
Tipo: Conference paper, poster, etc. Palavras-chave: Surveys and statistics; Biodiversity and ecosystem services.
Ano: 2013 URL: http://orgprints.org/21633/1/21633_Wolfrum.pdf
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BioBio - Indikatoren für Biodiversität in biologischen und extensiven Landwirtschaftssystemen Organic Eprints
Wolfrum, Sebastian; Siebrecht, Norman; Kainz, Maximilian.
Das EU-Forschungsprojekt BioBio schließt eine Lücke in der Verfügbarkeit wissenschaftlich fundierter, praktisch relevanter und international anwendbarer Biodiversitätsindikatoren für den Ökolandbau und andere extensive Landnutzungssysteme. Ziel des Projektes war es, ein breit anwendbares Indikatorensystem und standardisierte Methoden für die Beurteilung des Nutzens von ökologischer und extensiver Landwirtschaft für die Biodiversität auf landwirtschaftlich genutzten Flächen zur Verfügung zu stellen. Dazu wurden Indikatoren zusammengestellt, bewertet und standardisierte Analysemethoden definiert. 2010 wurden aus einer Vorauswahl 48 vielversprechendsten Indikatoren europaweit in 12 Fallstudien getestet. Von diesem Gesamtset der Indikatoren werden abschließend...
Tipo: Conference paper, poster, etc. Palavras-chave: Biodiversity and ecosystem services.
Ano: 2012 URL: http://orgprints.org/20983/1/Wolfrum%2Det%2Dal_2012_BioBio.pdf
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Anecic, endogeic, epigeic or all three - acknowledging the compositional nature of earthworm ecological group data in biodiversity analysis Organic Eprints
Wolfrum, Sebastian; Siebrecht, Norman; Papaja-Hülsbergen, Susanne; Kainz, Maximilian; Hülsbergen, Kurt-Jürgen.
Agriculture and biodiversity are closely connected. Especially the soil ecosystem is crucial in this relation. Earthworms are seen as good indicators for the health and functioning of the soil. Beneath different biodiversity measurese earthworm ecological group data is analysed to assess soil biodiversity, fertility and capability to deliver ecosystem services. However this kind of data is compositional and needs a special statistical treatment. New available methods for this purpose were applied to data from the BIOBIO project (www.biobio-indicator.org) to gain better understanding of the complex relationship between earthworms, agricultural management and environment.
Tipo: Conference paper, poster, etc. Palavras-chave: Surveys and statistics; Soil biology; Biodiversity and ecosystem services.
Ano: 2014 URL: http://orgprints.org/24106/1/24106%20SW%20Paper%20OWC14%20A4_revised_MM.pdf
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Earthworm abundance and species richness: Contribution of farming system and habitat type Organic Eprints
Köhler, Anna-Sophie; Huber, Julia; Wolfrum, Sebastian; Schmid, Harald; Hülsbergen, Kurt-Jürgen.
The aim of this study conducted at the experimental farm in Scheyern, was to investigate whether earthworm population in different habitats and under different farming systems (organic vs. integrated) differs. Arable land was compared with alley cropping systems, with meadows and field margins. For comparison purpose there were also investigations on the natural habitats fallow, forest and forest edge. The field study yielded the following results: In the meadow, the tree row in the alley cropping system and in the natural reference habitats (with exception of the studied forest), the abundance and species diversity was enhanced compared with arable land. In addition the tree rows in the alley cropping system had a positive effect on the earthworm...
Tipo: Conference paper, poster, etc. Palavras-chave: "Organics" in general; Soil quality; Biodiversity and ecosystem services.
Ano: 2014 URL: http://orgprints.org/23992/1/23992%20for%20ISOFAR%20conference%202014_MM.pdf
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Untersuchungen zum Einfluss ausgebrachter Hummelvölker auf Samenerträge von Rotklee Organic Eprints
Wolfrum, Sebastian; Ostermaier, Miriam; Siebrecht, Norman; Hülsbergen, Kurt-Jürgen.
It is known that a lot of agricultural crops are dependent on pollination by insects. While managing of pollinators for some crops is common, the effect of artificially breed bumblebees on yields of Red Clover (Trifolium pratense) is less studied. Here we present results of a field experiments where boxes with bumblebees (Bombus terrestris) where used to raise the pollination and thus the seed yields. By comparing test plots in different fields the effects were investigated. In the experiment no significant differences were found between the plots with or without artificially breed bumblebees. Possible reasons are discussed.
Tipo: Conference paper, poster, etc. Palavras-chave: Biodiversity and ecosystem services.
Ano: 2013 URL: http://orgprints.org/21632/1/21632_siebrecht.pdf
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Regenwurmpopulation in ökologisch und integriert bewirtschafteten Agroforstsystemen Organic Eprints
Huber, Julia; Papaja-Hülsbergen, Susanne; Wolfrum, Sebastian; Schmid, Harald; Hülsbergen, Kurt-Jürgen.
Agroforestry systems provide numerous environmental services. One of the advantages is the increase of biodiversity. Earthworms play a major role in soil fertility and have a key function in ecosystems. Abundance, biomass and the amount of species was measured to quantify the influences of trees on the earthworm population in integrated and organic farming systems. Results showed that in poplar stands the amount of earthworms, especially juvenile, was higher than in winter wheat or lucerne-clover-grass fields. Furthermore the organic farming system had higher earthworm abundance and species richness than the integrated farming system. Regarding tree species poplar had fewer earthworms in total and fewer epigeic species.
Tipo: Conference paper, poster, etc. Palavras-chave: Soil biology; Biodiversity and ecosystem services.
Ano: 2013 URL: http://orgprints.org/21659/1/21659_huber.pdf
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