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Full-Text Articles in Life Sciences

Effects Of Experimental Nitrogen Additions On Plant Diversity In An Old-Growth Tropical Forest, Xiankai Lu, Jiangming Mo, Frank S. Gilliam, Guoyi Zhou, Yunting Fang Oct 2010

Effects Of Experimental Nitrogen Additions On Plant Diversity In An Old-Growth Tropical Forest, Xiankai Lu, Jiangming Mo, Frank S. Gilliam, Guoyi Zhou, Yunting Fang

Biological Sciences Faculty Research

Response of plant biodiversity to increased availability of nitrogen (N) has been investigated in temperate and boreal forests, which are typically N-limited, but little is known in tropical forests. We examined the effects of artificial N additions on plant diversity (species richness, density and cover) of the understory layer in an N saturated old-growth tropical forest in southern China to test the following hypothesis: N additions decrease plant diversity in N saturated tropical forests primarily from N-mediated changes in soil properties. Experimental additions of N were administered at the following levels from July 2003 to July 2008: no addition (Control); …


Six New Species And 1 New Species Record Of Orthotrichia (Trichoptera: Hydroptilidae) From China, Zhou Lei, Yang Lian-Fang, John C. Morse Aug 2010

Six New Species And 1 New Species Record Of Orthotrichia (Trichoptera: Hydroptilidae) From China, Zhou Lei, Yang Lian-Fang, John C. Morse

Publications

Six new species of the caddisfly genus Orthotrichia are described and illustrated from China, namely Or. apophysis Zhou & Yang, sp. nov.; Or. latiramifera Zhou & Yang, sp. nov.; Or. cornuta Zhou &Yang, sp. nov.; Or. discedata Zhou & Morse, sp. nov.; Or. cuspidigera Zhou & Yang, sp. nov.; and Or. subrhomba Zhou & Morse, sp. nov.. One species, Or. terpsichore Malicky & Chantaramongkol, 2007, is recorded for the first time from China, bringing the number of species of the genus known from China to 14. Of these, 10 species are distributed among 3 species groups of Marshall (1979), with …


Tourist Behavior And Decibel Levels Correlate With Threat Frequency In Tibetan Macaques (Macaca Thibetana) At Mt. Huangshan, China, Lucy A. Ruesto, Lori K. Sheeran, Megan D. Matheson, Jin-Hua Li, R. Steven Wagner Jan 2010

Tourist Behavior And Decibel Levels Correlate With Threat Frequency In Tibetan Macaques (Macaca Thibetana) At Mt. Huangshan, China, Lucy A. Ruesto, Lori K. Sheeran, Megan D. Matheson, Jin-Hua Li, R. Steven Wagner

Biology Faculty Scholarship

Tourism is a common component of management practices directed toward endangered species and habitats, but few studies have explored the potential stressors that may occur to nonhumans as objects of tourism. We examined the impact that tourists have on provisioned, habituated Tibetan macaques (Macaca thibetana). Data were collected during August 2005 at the Valley of the Wild Monkeys (VWM), Mt. Huangshan, China. From a tourist viewing platform, we measured tourist densities, behaviors (for example, foot, hand, and mouth noises; mimicking monkeys; throwing objects or food), and decibel levels. Frequencies of monkey threats in the provisioning area of their …


What Did Grinding Stones Grind? New Light On Early Neolithic Subsistence Economy In The Middle Yellow River Valley, China, Li Liu, Judith Field, Richard Fullagar, Sheahan Bestel, Xingcan Chen, Xiaolin Ma Jan 2010

What Did Grinding Stones Grind? New Light On Early Neolithic Subsistence Economy In The Middle Yellow River Valley, China, Li Liu, Judith Field, Richard Fullagar, Sheahan Bestel, Xingcan Chen, Xiaolin Ma

Faculty of Science - Papers (Archive)

Grinding stones have provided a convenient proxy for the arrival of agriculture in Neolithic China. Not any more. Thanks to high-precision analyses of use-wear and starch residue, the authors show that early Neolithic people were mainly using these stones to process acorns. This defines a new stage in the long transition of food production from hunter-gatherer to farmer.