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Johann G. Zaller
University of Natural Resources and Life Sciences, Vienna
105Publications
26H-index
1,947Citations
Publications 105
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#1Johann G. ZallerH-Index: 26
#2Harald E. RiederH-Index: 15
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Okosysteme setzen sich aus belebten (biotischen) und unbelebten (abiotischen) Komponenten zusammen, die uber Okosystemprozesse miteinander verbunden sind. Hier stehen also Organismen (Pflanzen, Tiere, Mikroorganismen) in Wechselbeziehung mit ihrer Umwelt. Die Wechselbeziehungen zwischen den verschiedenen Komponenten konnen sich gegenseitig positiv oder negativ beeinflussen (Smith und Smith 2009).
#1Daniel Dörler (BOKU: University of Natural Resources and Life Sciences, Vienna)H-Index: 3
#2Agnes Scheucher (BOKU: University of Natural Resources and Life Sciences, Vienna)
Last.Johann G. Zaller (BOKU: University of Natural Resources and Life Sciences, Vienna)H-Index: 26
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The Spanish Slug (Arion vulgaris, formerly known as Arion lusitanicus) is an invasive agricultural and horticultural pest species that causes great damages all over Europe. Numerous options to control this slug are on the market; among the most commonly used are slug pellets containing the active ingredients metaldehyde or iron-III-phosphate and the application of parasitic nematodes (Phasmarhabditis hermaphrodita). These control measures potentially also affect non-target organisms like earthwo...
Background Pesticide levels are generally monitored within agricultural areas, but are commonly not assessed at public places. To assess possible contamination of non-target areas, 71 public playgrounds located next to intensively managed apple and wine orchards were selected in four valleys of South Tyrol (northern Italy). Further, the impact of environmental site characteristics on the number and concentration of pesticides was assessed. Grass samples from the selected playgrounds were collect...
#1Raja I. Hussain (BOKU: University of Natural Resources and Life Sciences, Vienna)
#2Ronnie Walcher (BOKU: University of Natural Resources and Life Sciences, Vienna)H-Index: 1
Last.Thomas Frank (BOKU: University of Natural Resources and Life Sciences, Vienna)H-Index: 23
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Associations between biodiversity, human health and well-being have never been discussed with reference to agriculturally managed, species-rich mountainous meadows. We evaluated these associations between extensively managed (one mowing a year, no fertilization) and abandoned (no mowing since more than 80 years, no fertilization) semi-dry meadows located in the Austrian and Swiss Alps. We quantified the richness and abundance of plants, grasshoppers, true bugs, bumblebees, syrphids and landscape...
#2Gema GuzmánH-Index: 10
Last.Daniel ParedesH-Index: 7
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Land use at landscape and field scales can increase the diversity and abundance of natural enemies for pest control. In this study, we investigated interactions between landscape elements (semi-natural vegetation, olive orchards, vineyards, other agricultural areas) and inter-row management (vegetation cover vs. bare soil) in relation to arthropod populations in Andalusian vineyards. Arthropods were collected from grapevine foliage in 15 vineyards using suction sampling. Landscape structure was ...
#2Andreas BohnerH-Index: 1
Last.Thomas FrankH-Index: 23
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Traditionally managed mountain grasslands are biodiversity hotspots in central Europe. However, socio-economic trends in agriculture during the last decades have changed farming practices, leaving steep and remote sites abandoned. Especially the abandonment of meadows is well known to directly affect plant and insect diversity. However, not much is known about the effects on soil processes and soil biota. To assess this, we studied four extensively managed (mown once a year, no fertilization) an...
#1Pia Euteneuer (BOKU: University of Natural Resources and Life Sciences, Vienna)
#2Helmut Wagentristl (BOKU: University of Natural Resources and Life Sciences, Vienna)H-Index: 10
Last.Johann G. Zaller (BOKU: University of Natural Resources and Life Sciences, Vienna)H-Index: 26
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Abstract Earthworms provide important ecosystem services in agricultural systems. However, little is known with regards to which extent earthworms feed on soil-borne plant fungal pathogens, thereby potentially reducing pathogen infection of crops. Using a food choice arena in the laboratory, we examined (i) whether the hardened resting structures (i.e., sclerotia) of white mould ( Sclerotinia sclerotiorum (Lib.) de Bary) are consumed by the earthworm Lumbricus terrestris L. (Lumbricidae) and (ii...
#1Alexander Bruckner (BOKU: University of Natural Resources and Life Sciences, Vienna)H-Index: 14
#2Alina Schmerbauch (BOKU: University of Natural Resources and Life Sciences, Vienna)
Last.Johann G. Zaller (BOKU: University of Natural Resources and Life Sciences, Vienna)H-Index: 26
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Abstract The herbicide Roundup (and glyphosate, its active ingredient) is extensively used for weed control on a worldwide scale. It is absorbed after foliar application and quickly translocated inside the plant. In this study, we investigated the effects of Roundup speed, a commercial glyphosate formulation, on the structural composition (dominance of microbial groups, phospholipid fatty acid analysis - PLFA) and functional diversity (use of carbon sources, Multiple Substrate Induced Respiratio...
Interactions between predatory species and their potential prey are little studied in vineyards, especially considering the surrounding landscape structure. We examined the effects of soil tillage intensities in vineyard inter-rows on the activity density and diversity of spiders (Araneae) and springtails (Collembola), their potential preys, and assessed whether these effects are altered by non-crop elements in the surrounding landscape. We collected data in 16 vineyards in Austria; eight were p...
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