R. Wagner

Publications175
h-index19
Citations1,663
Highly Influential Citations99
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  • Publications
  • Influence
Detritus processing by invertebrate shredders: a neotropical–temperate comparison
  • K. Wantzen, R. Wagner
  • Environmental Science
    Journal of the North American Benthological…
  • 1 March 2006
TLDR
The hypothesis that biogeographic distribution and the life-cycle strategies of the shredders are additional factors affecting the contribution of invertebrates to lotic decomposition processes is discussed and it is concluded that detritivorous neotropical insects may have 2 different species traits.
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Multiple-stressor effects on stream invertebrates: a mesocosm experiment manipulating nutrients, fine sediment and flow velocity
Summary Land-use changes have degraded ecosystems worldwide. A particular concern for freshwater biodiversity and ecosystem function are stressors introduced by intensified agriculture. Typically…
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Bosumtwi Impact Crater, Ghana: A Remote Sensing Investigation
The Bosumtwi crater in Ghana is a ~1.05 million year old, very well-preserved complex meteorite impact structure of approximately 10.5 km rim-to-rim diameter. The interior of the structure is largely…
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Central European Stream Ecosystems. The Long Term Study of the Breitenbach
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Global diversity of dipteran families (Insecta Diptera) in freshwater (excluding Simulidae, Culicidae, Chironomidae, Tipulidae and Tabanidae)
TLDR
Today's knowledge of worldwide species diversity of 19 families of aquatic Diptera in Continental Waters is presented and numbers of aquatic species will surely increase with increased ecological and taxonomical efforts.
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Complex and nonlinear climate‐driven changes in freshwater insect communities over 42 years
TLDR
In a nature reserve, climate change can lead to a significant decline in insect abundance and severe restructuring of communities, indicating that climate change has already altered biotic communities severely even in protected areas, where no other interacting stressors are present.
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Particulate Organic Matter
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Influence of temperature, photoperiod and nutrition on growth and consumption of Chaetopteryx villosa (Trichoptera)
TLDR
Growth rate, relative growth rate and efficiency of conversion were calculated and FPOM-fed specimens were smaller than those fed with FPOM + CPOM and pupae in the FPOM fed group and lasted longer than in the other groups.
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Mortality of Apatania fimbriata (Insecta: Trichoptera) during embryonic, larval and adult life stages
TLDR
The terrestrial life stage is probably decisive in the regulation of A. fimbriata populations, and the temperature dependence of embryonic development, measured as an increase in egg volume, and duration of embryogenesis at constant temperatures in the laboratory was described best by a negative exponential function.
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Synopsis of extinct Bruchomyiinae (Diptera, Psychodidae) from Burmese, Baltic and Dominican amber, with descriptions of new genera and species
Bruchomyiinae from Burmese, Baltic, and Caribbean amber are revised. Five new species from Baltic, one from Caribbean and three from Burmese amber are described. Based on recently discovered…
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