Kentucky Bluegrass Invasion in the Northern Great Plains and Prospective Management Approaches to Mitigate Its Spread

Kentucky bluegrass (<i>Poa pratensis</i> L.) is one of the most aggressive grasses invading Northern Great Plains (NGP) grasslands, resulting in substantial native species losses. Highly diverse grasslands dominated by native species are gradually transforming into rangelands largely dom...

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Main Authors: Rakhi Palit, Greta Gramig, Edward S. DeKeyser
Format: Article
Language:English
Published: MDPI AG 2021-04-01
Series:Plants
Subjects:
Online Access:https://www.mdpi.com/2223-7747/10/4/817
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author Rakhi Palit
Greta Gramig
Edward S. DeKeyser
author_facet Rakhi Palit
Greta Gramig
Edward S. DeKeyser
author_sort Rakhi Palit
collection DOAJ
description Kentucky bluegrass (<i>Poa pratensis</i> L.) is one of the most aggressive grasses invading Northern Great Plains (NGP) grasslands, resulting in substantial native species losses. Highly diverse grasslands dominated by native species are gradually transforming into rangelands largely dominated by non-native Kentucky bluegrass. Several factors potentially associated with Kentucky bluegrass invasions, including high propagule pressure, thatch formation, climate change, and increasing nitrogen deposition, could determine the future dominance and spread of Kentucky bluegrass in the NGP. Because atmospheric CO<sub>2</sub> is amplifying rapidly, a C3 grass like Kentucky bluegrass might be photosynthetically more efficient than native C4 grasses. As this exotic species shares similar morphological and phenological traits with many native cool-season grasses, controlling it with traditional management practices such as prescribed fire, grazing, herbicides, or combinations of these practices may also impair the growth of native species. Thus, developing effective management practices to combat Kentucky bluegrass spread while facilitating the native species cover is essential. Modifying traditional techniques and embracing science-based adaptive management tools that focus on the ecological interactions of Kentucky bluegrass with the surrounding native species could achieve these desired management goals. Enhancement of the competitiveness of surrounding native species could also be an important consideration for controlling this invasive species.
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spelling doaj.art-b82a8a577d664786b44b819f22cf264c2023-11-21T16:22:19ZengMDPI AGPlants2223-77472021-04-0110481710.3390/plants10040817Kentucky Bluegrass Invasion in the Northern Great Plains and Prospective Management Approaches to Mitigate Its SpreadRakhi Palit0Greta Gramig1Edward S. DeKeyser2School of Natural Resource Sciences, North Dakota State University, Fargo, ND 58102, USADepartment of Plant Sciences, North Dakota State University, Fargo, ND 58102, USASchool of Natural Resource Sciences, North Dakota State University, Fargo, ND 58102, USAKentucky bluegrass (<i>Poa pratensis</i> L.) is one of the most aggressive grasses invading Northern Great Plains (NGP) grasslands, resulting in substantial native species losses. Highly diverse grasslands dominated by native species are gradually transforming into rangelands largely dominated by non-native Kentucky bluegrass. Several factors potentially associated with Kentucky bluegrass invasions, including high propagule pressure, thatch formation, climate change, and increasing nitrogen deposition, could determine the future dominance and spread of Kentucky bluegrass in the NGP. Because atmospheric CO<sub>2</sub> is amplifying rapidly, a C3 grass like Kentucky bluegrass might be photosynthetically more efficient than native C4 grasses. As this exotic species shares similar morphological and phenological traits with many native cool-season grasses, controlling it with traditional management practices such as prescribed fire, grazing, herbicides, or combinations of these practices may also impair the growth of native species. Thus, developing effective management practices to combat Kentucky bluegrass spread while facilitating the native species cover is essential. Modifying traditional techniques and embracing science-based adaptive management tools that focus on the ecological interactions of Kentucky bluegrass with the surrounding native species could achieve these desired management goals. Enhancement of the competitiveness of surrounding native species could also be an important consideration for controlling this invasive species.https://www.mdpi.com/2223-7747/10/4/817climate changecompetitivenessecosystemfiregrazinginvasion
spellingShingle Rakhi Palit
Greta Gramig
Edward S. DeKeyser
Kentucky Bluegrass Invasion in the Northern Great Plains and Prospective Management Approaches to Mitigate Its Spread
Plants
climate change
competitiveness
ecosystem
fire
grazing
invasion
title Kentucky Bluegrass Invasion in the Northern Great Plains and Prospective Management Approaches to Mitigate Its Spread
title_full Kentucky Bluegrass Invasion in the Northern Great Plains and Prospective Management Approaches to Mitigate Its Spread
title_fullStr Kentucky Bluegrass Invasion in the Northern Great Plains and Prospective Management Approaches to Mitigate Its Spread
title_full_unstemmed Kentucky Bluegrass Invasion in the Northern Great Plains and Prospective Management Approaches to Mitigate Its Spread
title_short Kentucky Bluegrass Invasion in the Northern Great Plains and Prospective Management Approaches to Mitigate Its Spread
title_sort kentucky bluegrass invasion in the northern great plains and prospective management approaches to mitigate its spread
topic climate change
competitiveness
ecosystem
fire
grazing
invasion
url https://www.mdpi.com/2223-7747/10/4/817
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AT edwardsdekeyser kentuckybluegrassinvasioninthenortherngreatplainsandprospectivemanagementapproachestomitigateitsspread