Nutrient uptake and allocation by plants in recent mounds created by subterranean rodent, plateau zokor Eospalax baileyi

• Autorzy: Wu R. , Wei X. , Liu K. , Zhong M. , Liu Y. , Pan D. , Shao X.
• Języki publikacji: EN

Abstrakty

EN

To understand the nutrient absorption and adaptability of plant species that initially colonize mounds and the influences of the plateau zokor on the diversity of the plant community after 4 years' period, a series of experiments was conducted in an alpine meadow on the Qinghai-Tibetan Plateau. The contents of C and N and the flow of N in pioneer species were measured and tracked using the ¹⁵N isotope tracer method, and the species diversity on 4-year-old mounds was investigated. The results showed that (1) plateau zokors could influence the plant species on the mounds by creating gaps in the grassland; (2) Elymus nutans and Elsholtzia feddei, with high rates and efficiencies of nutrient absorption and transportation, were more competitive on the newly formed mounds than other species; (3) Elymus nutans played a dominant role in the plant community of the mounds; and (4) plateau zokors did not change the plant diversity after 4 years' period. These findings indicated that species colonizing the mounds experienced a process of competition when gaps were created by the rodents, that species with greater capabilities for resource acquisition and utilization had stronger competitiveness and vice versa, and that after a few years, the plant diversity on the mounds was almost similar to that of the undisturbed grassland.

Słowa kluczowe

EN

subterranean rodent; plateau zokor; Eospalax baileyi; nutrient absorption; resource availability; Qinghai-Tibetan Plateau

• Wydawca: -
• Czasopismo: Polish Journal of Ecology
• Rocznik: 2017
• Tom: 65
• Numer: 1
• Opis fizyczny: p.132-143,fig.,ref.

Twórcy

autor

Wu R.

• Grassland Science Department, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P.R. China
• Dryland Farming Institute, Hebei Academy of Agricultural and Forestry Sciences, Hengshui 053000, Hebei, P.R. China

autor

Wei X.

• Grassland Science Department, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P.R. China

autor

Liu K.

• Grassland Science Department, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P.R. China

autor

Zhong M.

• Grassland Science Department, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P.R. China

autor

Liu Y.

• Grassland Science Department, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P.R. China

autor

Pan D.

• Grassland Science Department, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P.R. China

autor

Shao X.

• Grassland Science Department, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P.R. China

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Identyfikatory

DOI

10.3161/15052249PJE2017.65.1.012