Impact of water-deficit stress on tritrophic interactions in a wheat-aphid-parasitoid system
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چکیده
منابع مشابه
Impact of water-deficit stress on tritrophic interactions in a wheat-aphid-parasitoid system
Increasing temperature and CO2 concentrations can alter tritrophic interactions in ecosystems, but the impact of increasingly severe drought on such interactions is not well understood. We examined the response of a wheat-aphid-parasitoid system to variation in water-deficit stress levels. Our results showed that arid area clones of the aphid, Sitobion avenae (Fabricius), tended to have longer ...
متن کاملAphid – parasitoid community structure on genetically modified wheat Simone
Simone von Burg1,*, Frank J. F. van Veen2, Fernando Álvarez-Alfageme3 and Jörg Romeis3 Institute of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland Centre for Ecology and Conservation, College of Life and Environmental Sciences, University of Exeter, Cornwall Campus, Penryn, Cornwall TR10 9EZ, UK Agroscope Reckenholz-Täniko...
متن کاملParasitoid load affects plant fitness in a tritrophic system
Plants attacked by herbivorous insects emit volatile compounds that attract predators or parasitoids of the herbivores. Plant fitness increases when these herbivorous insects are parasitized by solitary parasitoids, but whether gregarious koinobiont parasitoids also confer a benefit to plant fitness has been disputed. We investigated the relationship between parasitoid load of the gregarious Co...
متن کاملAphid-parasitoid community structure on genetically modified wheat.
Since the introduction of genetically modified (GM) plants, one of the main concerns has been their potential effect on non-target insects. Many studies have looked at GM plant effects on single non-target herbivore species or on simple herbivore-natural enemy food chains. Agro-ecosystems, however, are characterized by numerous insect species which are involved in complex interactions, forming ...
متن کاملEffect of Water Deficit Stress on Physiological Characteristics in Wheat (Triticum aestivum L.)
Abstract Terminal drought stress is one of the most important environmental stresses affecting plant morphology and physiology and has major effects on agricultural production. The purpose of this experiment was to investigate the effect of water deficit stress on changes in physiological traits of wheat in a randomized complete block design with three replications in two cultivation years of ...
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ژورنال
عنوان ژورنال: PLOS ONE
سال: 2017
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0186599