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Article
Successive bleaching events cause mass coral mortality in Guam, Micronesia
The reefs of Guam, a high island in the Western Pacific, were impacted by an unprecedented succession of extreme environmental events beginning in 2013. Elevated SSTs induced severe island-wide bleaching in 20...
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Article
Memories and anticipations control responding by rats (Rattus norvegicus) in a Pavlovian procedure
In Experiment 1 each rat received two different fixed series of three trials each. The unconditioned stimulus occurred on Trial 1 of one series and on Trial 3 of the other series, all other trials being nonrei...
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Article
The importance of integration and scale in the arbuscular mycorrhizal symbiosis
The arbuscular mycorrhizal (AM) fungus contributes to system processes and functions at various hierarchical organizational levels, through their establishment of linkages and feedbacks between whole-plants an...
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Article
Long-term effects of elevated atmospheric CO2 on below-ground biomass and transformations to soil organic matter in grassland
We determined the effects of elevated [CO2] on the quantity and quality of below-ground biomass and several soil organic matter pools at the conclusion of an eight-year CO2 enrichment experiment on native tallgra...
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Article
Prevalences of fungal pathogens and othernatural enemies of cereal aphids (Homoptera:Aphididae) in wheat under dryland and irrigatedconditions in South Africa
Surveys were conducted in the summer andwinter rainfall wheat producing regions of SouthAfrica in a first attempt to investigate theidentity and impact of entomopathogenic fungi withinthe cereal aphid complex....
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Article
Pollination of sevenPlectranthus spp. (Lamiaceae) in southern Natal, South Africa
The genusPlectranthus (Lamiaceae) shows remarkable radiation on the sandstones of southern Natal and northern Transkei in South Africa, where six endemic species occur. Two of these endemic species,P. hilliardiae
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Article
External hyphal production of vesicular-arbuscular mycorrhizal fungi in pasture and tallgrass prairie communities
External hyphae of vesicular-arbuscular mycorrhizal (VAM) fungi were quantified over a growing season in a reconstructed tallgrass prairie and an ungrazed cool-season pasture. In both sites, hyphal lengths inc...
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Article
Effect of explant type on proliferation of Carica papaya L. in vitro
Three papaya explant types (entire plantlets, plantlets with apices removed, or roots removed) were cultured on media with and without 2 μM BAP and 0.5 μM NAA. Best growth of lateral shoots occurred in the pre...