Vegetation change in response to grazing exclusion in montane grasslands, Argentina
Background and aims - Natural montane grasslands in the Southern Pampas of Argentina are expected to show a high potential for recovery after heavy grazing due to their evolutionary history in the presence of large herbivores and their high productivity. The objective of this work is to compare plan...
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| Veröffentlicht in: | Plant ecology and evolution 2012-11, Vol.145 (3), p.313-322 |
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| creator | Loydi, Alejandro Zalba, Sergio M. Distel, Roberto A. |
| description | Background and aims - Natural montane grasslands in the Southern Pampas of Argentina are expected to show a high potential for recovery after heavy grazing due to their evolutionary history in the presence of large herbivores and their high productivity. The objective of
this work is to compare plant diversity, bare soil percentage, biomass and botanical composition between grazed and non-grazed areas at different times following grazing exclusion. Methods - Vegetation was assessed on exclosures established in 2006 and on nearby areas open
to grazing by feral horses in December 2006, 2007, 2008 and 2009. In 2009 we added 15 year old exclosures to the analysis. Key results - Species richness declined 24 months after grazing exclusion, mainly due to a decrease in the abundance of forb species. Bare soil percentage
was significantly reduced 12 months after exclosures were built. Above-ground biomass showed a 3-fold increase 12 months after grazing exclusion. After three years, species richness and biomass were similar to those corresponding to older exclosures (15-years old). The composition of plant
communities also changed following horse exclusion, with three and 15-years old exclosures dominated by perennial grasses typical of late seral stages. Conclusions - Our results support the hypothesis that natural montane grasslands in the Southern Pampas of Argentina may
recover fast from grazing by large herbivores without application of specific restoration techniques. |
| doi_str_mv | 10.5091/plecevo.2012.730 |
| format | Article |
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this work is to compare plant diversity, bare soil percentage, biomass and botanical composition between grazed and non-grazed areas at different times following grazing exclusion. Methods - Vegetation was assessed on exclosures established in 2006 and on nearby areas open
to grazing by feral horses in December 2006, 2007, 2008 and 2009. In 2009 we added 15 year old exclosures to the analysis. Key results - Species richness declined 24 months after grazing exclusion, mainly due to a decrease in the abundance of forb species. Bare soil percentage
was significantly reduced 12 months after exclosures were built. Above-ground biomass showed a 3-fold increase 12 months after grazing exclusion. After three years, species richness and biomass were similar to those corresponding to older exclosures (15-years old). The composition of plant
communities also changed following horse exclusion, with three and 15-years old exclosures dominated by perennial grasses typical of late seral stages. Conclusions - Our results support the hypothesis that natural montane grasslands in the Southern Pampas of Argentina may
recover fast from grazing by large herbivores without application of specific restoration techniques.</description><identifier>ISSN: 2032-3913</identifier><identifier>ISSN: 2032-3921</identifier><identifier>EISSN: 2032-3921</identifier><identifier>DOI: 10.5091/plecevo.2012.730</identifier><language>eng</language><publisher>Botanic Garden Meise and Royal Botanical Society of Belgium</publisher><subject>Bare Soil ; Drought ; Feral Horses ; Grasses ; Grassland Diversity ; Grassland Recovery ; Grassland soils ; Grazing ; Herbivores ; Horses ; Natural Grassland ; Natural grasslands ; Overgrazing ; Pampas ; Plants ; Species ; Vegetation ; Vegetation Changes</subject><ispartof>Plant ecology and evolution, 2012-11, Vol.145 (3), p.313-322</ispartof><rights>2012 National Botanic Garden of Belgium and Royal Botanical Society of Belgium</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c370t-71cb45540c057f8bab5fd3cba4917422b965eb05f48a5bd1a8e00156ffbdfc823</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/43491847$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/43491847$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>288,314,780,784,803,864,27924,27925,58017,58250</link.rule.ids></links><search><creatorcontrib>Loydi, Alejandro</creatorcontrib><creatorcontrib>Zalba, Sergio M.</creatorcontrib><creatorcontrib>Distel, Roberto A.</creatorcontrib><title>Vegetation change in response to grazing exclusion in montane grasslands, Argentina</title><title>Plant ecology and evolution</title><addtitle>Plant Ecol Evolut</addtitle><description>Background and aims - Natural montane grasslands in the Southern Pampas of Argentina are expected to show a high potential for recovery after heavy grazing due to their evolutionary history in the presence of large herbivores and their high productivity. The objective of
this work is to compare plant diversity, bare soil percentage, biomass and botanical composition between grazed and non-grazed areas at different times following grazing exclusion. Methods - Vegetation was assessed on exclosures established in 2006 and on nearby areas open
to grazing by feral horses in December 2006, 2007, 2008 and 2009. In 2009 we added 15 year old exclosures to the analysis. Key results - Species richness declined 24 months after grazing exclusion, mainly due to a decrease in the abundance of forb species. Bare soil percentage
was significantly reduced 12 months after exclosures were built. Above-ground biomass showed a 3-fold increase 12 months after grazing exclusion. After three years, species richness and biomass were similar to those corresponding to older exclosures (15-years old). The composition of plant
communities also changed following horse exclusion, with three and 15-years old exclosures dominated by perennial grasses typical of late seral stages. Conclusions - Our results support the hypothesis that natural montane grasslands in the Southern Pampas of Argentina may
recover fast from grazing by large herbivores without application of specific restoration techniques.</description><subject>Bare Soil</subject><subject>Drought</subject><subject>Feral Horses</subject><subject>Grasses</subject><subject>Grassland Diversity</subject><subject>Grassland Recovery</subject><subject>Grassland soils</subject><subject>Grazing</subject><subject>Herbivores</subject><subject>Horses</subject><subject>Natural Grassland</subject><subject>Natural grasslands</subject><subject>Overgrazing</subject><subject>Pampas</subject><subject>Plants</subject><subject>Species</subject><subject>Vegetation</subject><subject>Vegetation Changes</subject><issn>2032-3913</issn><issn>2032-3921</issn><issn>2032-3921</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNpVkN1LwzAUxYMoOObefRH6B9h587W2j2M4FQY--PEakjStHV0ykkzUv97UjoF5yYFz7r2cH0LXGOYcKny37402n25OAJN5QeEMTQhQktOK4POTxvQSzULYQnp8gUtSTtDLu2lNlLFzNtMf0rYm62zmTdg7G0wWXdZ6-dPZNjNfuj-EIZcCO2ejtGYwQ-ilrcNttvStsbGz8gpdNLIPZnb8p-htff-6esw3zw9Pq-Um17SAmBdYK8Y5Aw28aEolFW9qqpVkFS4YIapacKOAN6yUXNVYlgYA80XTqLrRJaFTBONe7V0I3jRi77ud9N8Cgxi4iCMXMXARiUsauRlHtiE6f8ozmm6WrEj-evRT41RGiq07eJtKCOWiMv3_jQNIwIyPAoAK6eOfoL87LHl8</recordid><startdate>201211</startdate><enddate>201211</enddate><creator>Loydi, Alejandro</creator><creator>Zalba, Sergio M.</creator><creator>Distel, Roberto A.</creator><general>Botanic Garden Meise and Royal Botanical Society of Belgium</general><general>Royal Botanical Society of Belgium and the National Botanic Garden of Belgium</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>201211</creationdate><title>Vegetation change in response to grazing exclusion in montane grasslands, Argentina</title><author>Loydi, Alejandro ; Zalba, Sergio M. ; Distel, Roberto A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c370t-71cb45540c057f8bab5fd3cba4917422b965eb05f48a5bd1a8e00156ffbdfc823</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Bare Soil</topic><topic>Drought</topic><topic>Feral Horses</topic><topic>Grasses</topic><topic>Grassland Diversity</topic><topic>Grassland Recovery</topic><topic>Grassland soils</topic><topic>Grazing</topic><topic>Herbivores</topic><topic>Horses</topic><topic>Natural Grassland</topic><topic>Natural grasslands</topic><topic>Overgrazing</topic><topic>Pampas</topic><topic>Plants</topic><topic>Species</topic><topic>Vegetation</topic><topic>Vegetation Changes</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Loydi, Alejandro</creatorcontrib><creatorcontrib>Zalba, Sergio M.</creatorcontrib><creatorcontrib>Distel, Roberto A.</creatorcontrib><collection>CrossRef</collection><jtitle>Plant ecology and evolution</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Loydi, Alejandro</au><au>Zalba, Sergio M.</au><au>Distel, Roberto A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Vegetation change in response to grazing exclusion in montane grasslands, Argentina</atitle><jtitle>Plant ecology and evolution</jtitle><stitle>Plant Ecol Evolut</stitle><date>2012-11</date><risdate>2012</risdate><volume>145</volume><issue>3</issue><spage>313</spage><epage>322</epage><pages>313-322</pages><issn>2032-3913</issn><issn>2032-3921</issn><eissn>2032-3921</eissn><abstract>Background and aims - Natural montane grasslands in the Southern Pampas of Argentina are expected to show a high potential for recovery after heavy grazing due to their evolutionary history in the presence of large herbivores and their high productivity. The objective of
this work is to compare plant diversity, bare soil percentage, biomass and botanical composition between grazed and non-grazed areas at different times following grazing exclusion. Methods - Vegetation was assessed on exclosures established in 2006 and on nearby areas open
to grazing by feral horses in December 2006, 2007, 2008 and 2009. In 2009 we added 15 year old exclosures to the analysis. Key results - Species richness declined 24 months after grazing exclusion, mainly due to a decrease in the abundance of forb species. Bare soil percentage
was significantly reduced 12 months after exclosures were built. Above-ground biomass showed a 3-fold increase 12 months after grazing exclusion. After three years, species richness and biomass were similar to those corresponding to older exclosures (15-years old). The composition of plant
communities also changed following horse exclusion, with three and 15-years old exclosures dominated by perennial grasses typical of late seral stages. Conclusions - Our results support the hypothesis that natural montane grasslands in the Southern Pampas of Argentina may
recover fast from grazing by large herbivores without application of specific restoration techniques.</abstract><pub>Botanic Garden Meise and Royal Botanical Society of Belgium</pub><doi>10.5091/plecevo.2012.730</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record> |
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| source | DOAJ Directory of Open Access Journals; JSTOR Archive Collection A-Z Listing; IngentaConnect Free/Open Access Journals; EZB-FREE-00999 freely available EZB journals |
| subjects | Bare Soil Drought Feral Horses Grasses Grassland Diversity Grassland Recovery Grassland soils Grazing Herbivores Horses Natural Grassland Natural grasslands Overgrazing Pampas Plants Species Vegetation Vegetation Changes |
| title | Vegetation change in response to grazing exclusion in montane grasslands, Argentina |
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