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Cited by 266Soil Carbon and Nitrogen DynamicsRangeland and Wildlife ManagementIsotope Analysis in Ecology

The DOI matches its Crossref record; 70 of the 70 references it cites were found in a registry or an index.

EFFECTS OF NATIVE GRAZERS ON GRASSLAND N CYCLING IN YELLOWSTONE NATIONAL PARK

Frank, Douglas A., Evans, R. David·1997·Ecology
DOI 10.1890/0012-9658(1997)078[2238:eongog]2.0.co;2
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Abstract

We investigated the effects of native ungulates on grassland N cycling in Yellowstone National Park by examining natural 15N abundance (δ15N) of soils and plants inside and outside long-term (32–36 yr) exclosures. Across six topographically diverse sites, grazers increased δ15N of soil (0–20 cm) by 0.7‰, which was substantial considering that values for ungrazed soil ranged 2.4‰ (2.4–4.8‰). The magnitude of grazer 15N enrichment was positively related (r2 = 0.70) to the intensity of herbivore activity during the study, indexed by the amount of dung (g/m2) deposited at the sites. We also found that soil δ15N of ungulate urine and dung patches was significantly higher than that of control areas. Grazers probably increased soil δ15N by promoting N loss from the soil via leaching, ammonia volatilization, and/or denitrification. Each of these processes results in the removal of 15N depleted products from the soil and, consequently, 15N enrichment of the remaining soil. In contrast to soil results, grazers reduced plant 15N by an average of 0.7‰, probably due to isotopically light, soil NO3− (compared to soil NH4+) constituting a more important N source for plants in grazed grassland relative to those in ungrazed grassland. These findings indicate that native grazers increased N loss from this north-temperate grassland as a result of accelerated losses on urine- and dung-affected microsites and, potentially, from elevated N loss throughout the grazed landscape due to grazers promot…

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Crossref · 10.1890/0012-9658(1997)078[2238:eongog]2.0.co;2

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Research works printed but not linked: 2

  1. 10.2307/1552089 · DOI
  2. K. W. Steele, A. T. Wilson, and W. M. H. Saunders .1981 .Nitrogen isotope ratios in the surface and sub-surface horizons of New Zealand improved grassland soils., New Zealand Journal of Agricultural Research,24:167 -170 .

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Metadata

Authors
Frank, D. A., & Evans, R. D.
Affiliations
  • Syracuse University (US)
  • University of Arkansas at Fayetteville (US)
ORCID
Frank, Douglas A.
Venue
Ecology
Publisher
Wiley
Published
1997-10
Volume
78
Issue
7
Pages
2238-2248
ISSN
0012-9658 (ISSN-L)
DOI
10.1890/0012-9658(1997)078[2238:eongog]2.0.co;2
OpenAlex
W2049898595
Cited by
266
References
70
Citations by year
2026: 3 · 2025: 3 · 2024: 9 · 2023: 9 · 2022: 6 · 2021: 11 · 2020: 13 · 2019: 17 · 2018: 9 · 2017: 12 · 2016: 6 · 2015: 6 · 2014: 9 · 2013: 10 · 2012: 7
FWCI
11.01
Type
journal article
Language
en
Open access
closed
Licence
doi.wiley.com/10.1002/tdm_license_1.1 (tdm, 6544 d)
Locations
Ecology (publishedVersion)
Funders
National Science Foundation
Topics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
  • Physical Sciences › Environmental Science › Ecology › Rangeland and Wildlife Management
  • Physical Sciences › Environmental Science › Ecology › Isotope Analysis in Ecology
Keywords
native ungulates, grazing, soil nitrogen isotopes, 15N enrichment, nitrogen leaching, ammonia volatilization, denitrification, plant nitrogen uptake, soil nitrate, exclosures, Yellowstone National Park

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CoChat. (2026). Citation check: EFFECTS OF NATIVE GRAZERS ON GRASSLAND N CYCLING IN YELLOWSTONE NATIONAL PARK. https://app.cochat.ai/papers/10.1890/0012-9658(1997)078%5B2238:eongog%5D2.0.co;2
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Frank, D. A., & Evans, R. D. (1997). EFFECTS OF NATIVE GRAZERS ON GRASSLAND N CYCLING IN YELLOWSTONE NATIONAL PARK. Ecology. https://doi.org/10.1890/0012-9658(1997)078%5B2238%3Aeongog%5D2.0.co%3B2