Control measures for a recent invasion of Hieracium pilosella in Southern Patagonian rangelands
Plant invasions have important ecological impacts on biodiversity, the functioning of ecosystems and economic sustainability. In this study, we evaluated the effects of four control measures [pasture sown+fertiliser, fertiliser and selective/non-selective herbicide applications] in two different grazing conditions [grazed and ungrazed] during a recent invasion of the exotic herb Hieracium pilosella in northern grasslands of Tierra del Fuego Island in Southern Patagonia, Argentina. As response variables, we measured the cover of the invasive species, the dominant growth forms of other plant species, litter and bare soil at patch scales [m 2] during two consecutive growing seasons. The effects of fertilisation depended on the grazing conditions; H. pilosella cover decreased by more than 92 percent and was replaced by dicotyledonous herbs in the ungrazed/fertilised subplots, while it exhibited no decrease in the grazed/fertilised subplots after the second growing season. Both herbicides [selective and non-selective] reduced H. pilosella cover by c. 63 percent compared with the untreated subplots independently of grazing. However, the non-selective herbicide application resulted in an increase in bare soil and litter cover in the treated grazed and ungrazed subplots respectively. In contrast, such effects were not observed with the selective broad-leaved herbicide application. A control strategy based on the local application of selective herbicides and/or NP fertilisers, in conjunction with a transient ban on sheep grazing, reduced the invader's cover in the short term and at a local scale and also reduced the cover of bare soil through the restoration of native vegetation. An economic assessment of this strategy supported the profitability of these control measures.
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Language: | eng |
Subjects: | DISTURBANCE, GRASSLAND, MOUSE-EAR HAWKWEED, PASTURE, PLANT INVASION, RANGELAND MANAGEMENT, RESOURCE AVAILABILITY, SHEEP GRAZING, BARE SOIL, BIOLOGICAL INVASION, DICOTYLEDON, ECOLOGICAL IMPACT, ECOSYSTEM FUNCTION, FERTILIZER APPLICATION, GRAZING, GROWING SEASON, GROWTH FORM, HERB, HERBICIDE, RANGELAND, RESOURCE ALLOCATION, RESTORATION ECOLOGY, SHEEP, SUSTAINABILITY, ARGENTINA, PATAGONIA, TIERRA DEL FUEGO [[PRV] ARGENTINA], HIERACIUM PILOSELLA, OVIS ARIES, , |
Online Access: | http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=46764 |
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DISTURBANCE GRASSLAND MOUSE-EAR HAWKWEED PASTURE PLANT INVASION RANGELAND MANAGEMENT RESOURCE AVAILABILITY SHEEP GRAZING BARE SOIL BIOLOGICAL INVASION DICOTYLEDON ECOLOGICAL IMPACT ECOSYSTEM FUNCTION FERTILIZER APPLICATION GRAZING GROWING SEASON GROWTH FORM HERB HERBICIDE RANGELAND RESOURCE ALLOCATION RESTORATION ECOLOGY SHEEP SUSTAINABILITY ARGENTINA PATAGONIA TIERRA DEL FUEGO [[PRV] ARGENTINA] HIERACIUM PILOSELLA OVIS ARIES DISTURBANCE GRASSLAND MOUSE-EAR HAWKWEED PASTURE PLANT INVASION RANGELAND MANAGEMENT RESOURCE AVAILABILITY SHEEP GRAZING BARE SOIL BIOLOGICAL INVASION DICOTYLEDON ECOLOGICAL IMPACT ECOSYSTEM FUNCTION FERTILIZER APPLICATION GRAZING GROWING SEASON GROWTH FORM HERB HERBICIDE RANGELAND RESOURCE ALLOCATION RESTORATION ECOLOGY SHEEP SUSTAINABILITY ARGENTINA PATAGONIA TIERRA DEL FUEGO [[PRV] ARGENTINA] HIERACIUM PILOSELLA OVIS ARIES |
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DISTURBANCE GRASSLAND MOUSE-EAR HAWKWEED PASTURE PLANT INVASION RANGELAND MANAGEMENT RESOURCE AVAILABILITY SHEEP GRAZING BARE SOIL BIOLOGICAL INVASION DICOTYLEDON ECOLOGICAL IMPACT ECOSYSTEM FUNCTION FERTILIZER APPLICATION GRAZING GROWING SEASON GROWTH FORM HERB HERBICIDE RANGELAND RESOURCE ALLOCATION RESTORATION ECOLOGY SHEEP SUSTAINABILITY ARGENTINA PATAGONIA TIERRA DEL FUEGO [[PRV] ARGENTINA] HIERACIUM PILOSELLA OVIS ARIES DISTURBANCE GRASSLAND MOUSE-EAR HAWKWEED PASTURE PLANT INVASION RANGELAND MANAGEMENT RESOURCE AVAILABILITY SHEEP GRAZING BARE SOIL BIOLOGICAL INVASION DICOTYLEDON ECOLOGICAL IMPACT ECOSYSTEM FUNCTION FERTILIZER APPLICATION GRAZING GROWING SEASON GROWTH FORM HERB HERBICIDE RANGELAND RESOURCE ALLOCATION RESTORATION ECOLOGY SHEEP SUSTAINABILITY ARGENTINA PATAGONIA TIERRA DEL FUEGO [[PRV] ARGENTINA] HIERACIUM PILOSELLA OVIS ARIES Cipriotti, Pablo Ariel Rauber, Ruth B. Collantes, Marta Beatriz Braun, Karen Escartín, Celina Control measures for a recent invasion of Hieracium pilosella in Southern Patagonian rangelands |
description |
Plant invasions have important ecological impacts on biodiversity, the functioning of ecosystems and economic sustainability. In this study, we evaluated the effects of four control measures [pasture sown+fertiliser, fertiliser and selective/non-selective herbicide applications] in two different grazing conditions [grazed and ungrazed] during a recent invasion of the exotic herb Hieracium pilosella in northern grasslands of Tierra del Fuego Island in Southern Patagonia, Argentina. As response variables, we measured the cover of the invasive species, the dominant growth forms of other plant species, litter and bare soil at patch scales [m 2] during two consecutive growing seasons. The effects of fertilisation depended on the grazing conditions; H. pilosella cover decreased by more than 92 percent and was replaced by dicotyledonous herbs in the ungrazed/fertilised subplots, while it exhibited no decrease in the grazed/fertilised subplots after the second growing season. Both herbicides [selective and non-selective] reduced H. pilosella cover by c. 63 percent compared with the untreated subplots independently of grazing. However, the non-selective herbicide application resulted in an increase in bare soil and litter cover in the treated grazed and ungrazed subplots respectively. In contrast, such effects were not observed with the selective broad-leaved herbicide application. A control strategy based on the local application of selective herbicides and/or NP fertilisers, in conjunction with a transient ban on sheep grazing, reduced the invader's cover in the short term and at a local scale and also reduced the cover of bare soil through the restoration of native vegetation. An economic assessment of this strategy supported the profitability of these control measures. |
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Texto |
topic_facet |
DISTURBANCE GRASSLAND MOUSE-EAR HAWKWEED PASTURE PLANT INVASION RANGELAND MANAGEMENT RESOURCE AVAILABILITY SHEEP GRAZING BARE SOIL BIOLOGICAL INVASION DICOTYLEDON ECOLOGICAL IMPACT ECOSYSTEM FUNCTION FERTILIZER APPLICATION GRAZING GROWING SEASON GROWTH FORM HERB HERBICIDE RANGELAND RESOURCE ALLOCATION RESTORATION ECOLOGY SHEEP SUSTAINABILITY ARGENTINA PATAGONIA TIERRA DEL FUEGO [[PRV] ARGENTINA] HIERACIUM PILOSELLA OVIS ARIES |
author |
Cipriotti, Pablo Ariel Rauber, Ruth B. Collantes, Marta Beatriz Braun, Karen Escartín, Celina |
author_facet |
Cipriotti, Pablo Ariel Rauber, Ruth B. Collantes, Marta Beatriz Braun, Karen Escartín, Celina |
author_sort |
Cipriotti, Pablo Ariel |
title |
Control measures for a recent invasion of Hieracium pilosella in Southern Patagonian rangelands |
title_short |
Control measures for a recent invasion of Hieracium pilosella in Southern Patagonian rangelands |
title_full |
Control measures for a recent invasion of Hieracium pilosella in Southern Patagonian rangelands |
title_fullStr |
Control measures for a recent invasion of Hieracium pilosella in Southern Patagonian rangelands |
title_full_unstemmed |
Control measures for a recent invasion of Hieracium pilosella in Southern Patagonian rangelands |
title_sort |
control measures for a recent invasion of hieracium pilosella in southern patagonian rangelands |
url |
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=46764 |
work_keys_str_mv |
AT cipriottipabloariel controlmeasuresforarecentinvasionofhieraciumpilosellainsouthernpatagonianrangelands AT rauberruthb controlmeasuresforarecentinvasionofhieraciumpilosellainsouthernpatagonianrangelands AT collantesmartabeatriz controlmeasuresforarecentinvasionofhieraciumpilosellainsouthernpatagonianrangelands AT braunkaren controlmeasuresforarecentinvasionofhieraciumpilosellainsouthernpatagonianrangelands AT escartincelina controlmeasuresforarecentinvasionofhieraciumpilosellainsouthernpatagonianrangelands |
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1774851080432123904 |
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KOHA-OAI-AGRO:467642023-08-15T13:37:44Zhttp://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=46764AAGControl measures for a recent invasion of Hieracium pilosella in Southern Patagonian rangelandsCipriotti, Pablo ArielRauber, Ruth B.Collantes, Marta BeatrizBraun, KarenEscartín, Celinatextengapplication/pdfPlant invasions have important ecological impacts on biodiversity, the functioning of ecosystems and economic sustainability. In this study, we evaluated the effects of four control measures [pasture sown+fertiliser, fertiliser and selective/non-selective herbicide applications] in two different grazing conditions [grazed and ungrazed] during a recent invasion of the exotic herb Hieracium pilosella in northern grasslands of Tierra del Fuego Island in Southern Patagonia, Argentina. As response variables, we measured the cover of the invasive species, the dominant growth forms of other plant species, litter and bare soil at patch scales [m 2] during two consecutive growing seasons. The effects of fertilisation depended on the grazing conditions; H. pilosella cover decreased by more than 92 percent and was replaced by dicotyledonous herbs in the ungrazed/fertilised subplots, while it exhibited no decrease in the grazed/fertilised subplots after the second growing season. Both herbicides [selective and non-selective] reduced H. pilosella cover by c. 63 percent compared with the untreated subplots independently of grazing. However, the non-selective herbicide application resulted in an increase in bare soil and litter cover in the treated grazed and ungrazed subplots respectively. In contrast, such effects were not observed with the selective broad-leaved herbicide application. A control strategy based on the local application of selective herbicides and/or NP fertilisers, in conjunction with a transient ban on sheep grazing, reduced the invader's cover in the short term and at a local scale and also reduced the cover of bare soil through the restoration of native vegetation. An economic assessment of this strategy supported the profitability of these control measures.Plant invasions have important ecological impacts on biodiversity, the functioning of ecosystems and economic sustainability. In this study, we evaluated the effects of four control measures [pasture sown+fertiliser, fertiliser and selective/non-selective herbicide applications] in two different grazing conditions [grazed and ungrazed] during a recent invasion of the exotic herb Hieracium pilosella in northern grasslands of Tierra del Fuego Island in Southern Patagonia, Argentina. As response variables, we measured the cover of the invasive species, the dominant growth forms of other plant species, litter and bare soil at patch scales [m 2] during two consecutive growing seasons. The effects of fertilisation depended on the grazing conditions; H. pilosella cover decreased by more than 92 percent and was replaced by dicotyledonous herbs in the ungrazed/fertilised subplots, while it exhibited no decrease in the grazed/fertilised subplots after the second growing season. Both herbicides [selective and non-selective] reduced H. pilosella cover by c. 63 percent compared with the untreated subplots independently of grazing. However, the non-selective herbicide application resulted in an increase in bare soil and litter cover in the treated grazed and ungrazed subplots respectively. In contrast, such effects were not observed with the selective broad-leaved herbicide application. A control strategy based on the local application of selective herbicides and/or NP fertilisers, in conjunction with a transient ban on sheep grazing, reduced the invader's cover in the short term and at a local scale and also reduced the cover of bare soil through the restoration of native vegetation. An economic assessment of this strategy supported the profitability of these control measures.DISTURBANCEGRASSLANDMOUSE-EAR HAWKWEEDPASTUREPLANT INVASIONRANGELAND MANAGEMENTRESOURCE AVAILABILITYSHEEP GRAZINGBARE SOILBIOLOGICAL INVASIONDICOTYLEDONECOLOGICAL IMPACTECOSYSTEM FUNCTIONFERTILIZER APPLICATIONGRAZINGGROWING SEASONGROWTH FORMHERBHERBICIDERANGELANDRESOURCE ALLOCATIONRESTORATION ECOLOGYSHEEPSUSTAINABILITYARGENTINAPATAGONIATIERRA DEL FUEGO [[PRV] ARGENTINA]HIERACIUM PILOSELLAOVIS ARIESWeed Research |