Reindeer trampling promotes vegetation changes in tundra heathlands: results from a simulation experiment. Egelkraut, D., Barthelemy, H., & Olofsson, J. Journal of Vegetation Science, 31(3):476–486, February, 2020. _eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/jvs.12871![Reindeer trampling promotes vegetation changes in tundra heathlands: results from a simulation experiment. [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex Question Herbivores exert strong influences on vegetation through activities such as trampling, defoliation, and fertilization. The combined effect of these activities on plant performance may cause dramatic vegetation shifts. Because herbivore pressures and the relative importance of their different activities are not equally distributed across the landscape, it is important to understand their isolated effect. One example of an herbivore-induced vegetation shift is the reindeer-driven transition from a subarctic tundra vegetation dominated by dwarf shrubs into a more productive, graminoid-dominated state. Here, we asked how each of the grazing activities by reindeer separately and combined, shape vegetation composition. Location Nordreisa, Norway. Methods We used a field experiment over six summers to study the separate and interacting effects of reindeer trampling, defoliation, feces addition and moss removal on tundra heath vegetation, and to identify which of these factors were most important in driving the plant community towards a graminoid-dominated state. Results The combination of all treatments resulted in the strongest vegetation changes, but trampling was the single most important factor altering the vegetation composition by reducing the abundance of both evergreen and deciduous dwarf shrubs. In contrast to what we expected, none of our treatments, separate or combined, resulted in an increased abundance of graminoids in five years, although such rapid vegetation changes have been observed in the field; in similar environmental conditions. Conclusions Trampling is the key process by which reindeer influence the abundance of functional groups, but only many processes combined result in strong changes in community composition. Moreover, additional factors not included in this experiment, such as urine, may be important in causing a state shift to a graminoid-dominated community.
@article{egelkraut_reindeer_2020,
title = {Reindeer trampling promotes vegetation changes in tundra heathlands: results from a simulation experiment.},
volume = {31},
copyright = {This article is protected by copyright. All rights reserved.},
issn = {1654-1103},
shorttitle = {Reindeer trampling promotes vegetation changes in tundra heathlands},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/jvs.12871},
doi = {10.1111/jvs.12871},
abstract = {Question Herbivores exert strong influences on vegetation through activities such as trampling, defoliation, and fertilization. The combined effect of these activities on plant performance may cause dramatic vegetation shifts. Because herbivore pressures and the relative importance of their different activities are not equally distributed across the landscape, it is important to understand their isolated effect. One example of an herbivore-induced vegetation shift is the reindeer-driven transition from a subarctic tundra vegetation dominated by dwarf shrubs into a more productive, graminoid-dominated state. Here, we asked how each of the grazing activities by reindeer separately and combined, shape vegetation composition. Location Nordreisa, Norway. Methods We used a field experiment over six summers to study the separate and interacting effects of reindeer trampling, defoliation, feces addition and moss removal on tundra heath vegetation, and to identify which of these factors were most important in driving the plant community towards a graminoid-dominated state. Results The combination of all treatments resulted in the strongest vegetation changes, but trampling was the single most important factor altering the vegetation composition by reducing the abundance of both evergreen and deciduous dwarf shrubs. In contrast to what we expected, none of our treatments, separate or combined, resulted in an increased abundance of graminoids in five years, although such rapid vegetation changes have been observed in the field; in similar environmental conditions. Conclusions Trampling is the key process by which reindeer influence the abundance of functional groups, but only many processes combined result in strong changes in community composition. Moreover, additional factors not included in this experiment, such as urine, may be important in causing a state shift to a graminoid-dominated community.},
language = {en},
number = {3},
urldate = {2020-03-19},
journal = {Journal of Vegetation Science},
author = {Egelkraut, Dagmar and Barthelemy, Hélène and Olofsson, Johan},
month = feb,
year = {2020},
note = {\_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/jvs.12871},
keywords = {\#nosource, Defoliation, Rangifer tarandus, fertilization, grazing simulation, herbivory, shrubification, trampling, vegetation shifts},
pages = {476--486},
}
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Because herbivore pressures and the relative importance of their different activities are not equally distributed across the landscape, it is important to understand their isolated effect. One example of an herbivore-induced vegetation shift is the reindeer-driven transition from a subarctic tundra vegetation dominated by dwarf shrubs into a more productive, graminoid-dominated state. Here, we asked how each of the grazing activities by reindeer separately and combined, shape vegetation composition. Location Nordreisa, Norway. Methods We used a field experiment over six summers to study the separate and interacting effects of reindeer trampling, defoliation, feces addition and moss removal on tundra heath vegetation, and to identify which of these factors were most important in driving the plant community towards a graminoid-dominated state. Results The combination of all treatments resulted in the strongest vegetation changes, but trampling was the single most important factor altering the vegetation composition by reducing the abundance of both evergreen and deciduous dwarf shrubs. In contrast to what we expected, none of our treatments, separate or combined, resulted in an increased abundance of graminoids in five years, although such rapid vegetation changes have been observed in the field; in similar environmental conditions. Conclusions Trampling is the key process by which reindeer influence the abundance of functional groups, but only many processes combined result in strong changes in community composition. Moreover, additional factors not included in this experiment, such as urine, may be important in causing a state shift to a graminoid-dominated community.","language":"en","number":"3","urldate":"2020-03-19","journal":"Journal of Vegetation Science","author":[{"propositions":[],"lastnames":["Egelkraut"],"firstnames":["Dagmar"],"suffixes":[]},{"propositions":[],"lastnames":["Barthelemy"],"firstnames":["Hélène"],"suffixes":[]},{"propositions":[],"lastnames":["Olofsson"],"firstnames":["Johan"],"suffixes":[]}],"month":"February","year":"2020","note":"_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/jvs.12871","keywords":"#nosource, Defoliation, Rangifer tarandus, fertilization, grazing simulation, herbivory, shrubification, trampling, vegetation shifts","pages":"476–486","bibtex":"@article{egelkraut_reindeer_2020,\n\ttitle = {Reindeer trampling promotes vegetation changes in tundra heathlands: results from a simulation experiment.},\n\tvolume = {31},\n\tcopyright = {This article is protected by copyright. All rights reserved.},\n\tissn = {1654-1103},\n\tshorttitle = {Reindeer trampling promotes vegetation changes in tundra heathlands},\n\turl = {https://onlinelibrary.wiley.com/doi/abs/10.1111/jvs.12871},\n\tdoi = {10.1111/jvs.12871},\n\tabstract = {Question Herbivores exert strong influences on vegetation through activities such as trampling, defoliation, and fertilization. The combined effect of these activities on plant performance may cause dramatic vegetation shifts. Because herbivore pressures and the relative importance of their different activities are not equally distributed across the landscape, it is important to understand their isolated effect. One example of an herbivore-induced vegetation shift is the reindeer-driven transition from a subarctic tundra vegetation dominated by dwarf shrubs into a more productive, graminoid-dominated state. Here, we asked how each of the grazing activities by reindeer separately and combined, shape vegetation composition. Location Nordreisa, Norway. Methods We used a field experiment over six summers to study the separate and interacting effects of reindeer trampling, defoliation, feces addition and moss removal on tundra heath vegetation, and to identify which of these factors were most important in driving the plant community towards a graminoid-dominated state. Results The combination of all treatments resulted in the strongest vegetation changes, but trampling was the single most important factor altering the vegetation composition by reducing the abundance of both evergreen and deciduous dwarf shrubs. In contrast to what we expected, none of our treatments, separate or combined, resulted in an increased abundance of graminoids in five years, although such rapid vegetation changes have been observed in the field; in similar environmental conditions. Conclusions Trampling is the key process by which reindeer influence the abundance of functional groups, but only many processes combined result in strong changes in community composition. Moreover, additional factors not included in this experiment, such as urine, may be important in causing a state shift to a graminoid-dominated community.},\n\tlanguage = {en},\n\tnumber = {3},\n\turldate = {2020-03-19},\n\tjournal = {Journal of Vegetation Science},\n\tauthor = {Egelkraut, Dagmar and Barthelemy, Hélène and Olofsson, Johan},\n\tmonth = feb,\n\tyear = {2020},\n\tnote = {\\_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/jvs.12871},\n\tkeywords = {\\#nosource, Defoliation, Rangifer tarandus, fertilization, grazing simulation, herbivory, shrubification, trampling, vegetation shifts},\n\tpages = {476--486},\n}\n\n\n\n","author_short":["Egelkraut, D.","Barthelemy, H.","Olofsson, J."],"key":"egelkraut_reindeer_2020","id":"egelkraut_reindeer_2020","bibbaseid":"egelkraut-barthelemy-olofsson-reindeertramplingpromotesvegetationchangesintundraheathlandsresultsfromasimulationexperiment-2020","role":"author","urls":{"Paper":"https://onlinelibrary.wiley.com/doi/abs/10.1111/jvs.12871"},"keyword":["#nosource","Defoliation","Rangifer tarandus","fertilization","grazing simulation","herbivory","shrubification","trampling","vegetation shifts"],"metadata":{"authorlinks":{}},"html":""},"bibtype":"article","biburl":"https://bibbase.org/zotero/circ-publications","dataSources":["nbqZWNnSmJwdJFEEB","Mdrhvw5KhxFbTbWoS"],"keywords":["#nosource","defoliation","rangifer tarandus","fertilization","grazing simulation","herbivory","shrubification","trampling","vegetation shifts"],"search_terms":["reindeer","trampling","promotes","vegetation","changes","tundra","heathlands","results","simulation","experiment","egelkraut","barthelemy","olofsson"],"title":"Reindeer trampling promotes vegetation changes in tundra heathlands: results from a simulation experiment.","year":2020}