Effects of grazing on C:N:P stoichiometry attenuate from soils to plants and insect herbivores in a semi-arid grassland

Nazim Hassan, Xiaofei Li, Jianyong Wang, Hui Zhu, Duofeng Pan, Iqra Naeen, Petri Nummi, Deli Wang, Deborah Finke & Zhiwei Zhong
Understanding the processing of limiting nutrients among organisms is an important goal of community ecology. Less known is how human disturbances may alter the stoichiometric patterns among organisms from different trophic levels within communities. Here, we investigated how livestock grazing affects the C:N:P ecological stoichiometry of soils, plants (Leymus chinensis), and insect herbivores (Euchorthippus spp.) in a semi-arid grassland in northeastern China. We found that 3 years of grazing significantly enhanced soil available N and...
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