Elaeagnus angustifolia Colonization and Understory Floristic Successional Patterns at Mid Valley, North Patagonia, Argentina

Autores
Klich, María G.
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fil: Klich, María G. Universidad Nacional de Río Negro. Escuela de Veterinaria. Río Negro, Argentina.
From circa 1970, Elaeagnus angustifolia (olivillo, Russian olive) has been a notorious invader in the valley livestock fields at Mid Valley of Rio Negro, in North Patagonia, Argentina. The species colonized riparian and plain areas forming different stands. Once introduced in this semiarid region, the seasonal and yearly climatic variations, as well as the flow regimen of the river, influenced the colonization speed. Depending on the landscape, E. angustifolia stands may develop as monospecific groups or in associations with other trees, leaving some uninvaded areas in-between. The different shapes and the main species forming the canopy of the stands, affect the floristic composition, and the cattle forage quality, of the US (Understory) community, if compared with the uninvaded zones. Other herbaceous community can be distinguished at the stands’ border. The description of the different stages on E. angustifolia colonization in Mid Valley for 25 years, shows that the colonization was hastened by rainy years and wet soils. Once established, and while the new specimens reached the reproductive age, the enhancement of the population was the result of vegetative sprouting and diminished US diversity. This period was immediately followed by drought years, but the amelioration of soil quality of the already nitrogen fixating roots and the attenuation of incident sunlight, benefited herbaceous strata under the canopy of all the stand with Russian olive. Posterior changes in trees composition and management of the cattle fields, influenced US diversity. Today, the herbaceous composition studies show that, under dense monospecific population of E. angustifolia, the pasture reduces forage quality because of the dominance of non-palatable species. Stands’ border areas combine an enhanced nitrogen content in soils, and enough light to develop a herbaceous community of annual and perennial grasses and forbs. An increment on biodiversity and spontaneous forage biomass is noticed after the Russian olive plants are removed.
Describe la evolucion de la comunidad vegetal bajo las areas invadidase por Elaeagnus angustifolia y lo cambios en la biodiversidad durante 25 años.
Materia
Ciencias Agrarias
Elaeagnus Angustifolia
Invaders
US Vegetation
Forage Resources
Successions
Ciencias Agrarias
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
RID-UNRN (UNRN)
Institución
Universidad Nacional de Río Negro
OAI Identificador
oai:rid.unrn.edu.ar:20.500.12049/5291

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spelling Elaeagnus angustifolia Colonization and Understory Floristic Successional Patterns at Mid Valley, North Patagonia, ArgentinaKlich, María G.Ciencias AgrariasElaeagnus AngustifoliaInvadersUS VegetationForage ResourcesSuccessionsCiencias AgrariasFil: Klich, María G. Universidad Nacional de Río Negro. Escuela de Veterinaria. Río Negro, Argentina.From circa 1970, Elaeagnus angustifolia (olivillo, Russian olive) has been a notorious invader in the valley livestock fields at Mid Valley of Rio Negro, in North Patagonia, Argentina. The species colonized riparian and plain areas forming different stands. Once introduced in this semiarid region, the seasonal and yearly climatic variations, as well as the flow regimen of the river, influenced the colonization speed. Depending on the landscape, E. angustifolia stands may develop as monospecific groups or in associations with other trees, leaving some uninvaded areas in-between. The different shapes and the main species forming the canopy of the stands, affect the floristic composition, and the cattle forage quality, of the US (Understory) community, if compared with the uninvaded zones. Other herbaceous community can be distinguished at the stands’ border. The description of the different stages on E. angustifolia colonization in Mid Valley for 25 years, shows that the colonization was hastened by rainy years and wet soils. Once established, and while the new specimens reached the reproductive age, the enhancement of the population was the result of vegetative sprouting and diminished US diversity. This period was immediately followed by drought years, but the amelioration of soil quality of the already nitrogen fixating roots and the attenuation of incident sunlight, benefited herbaceous strata under the canopy of all the stand with Russian olive. Posterior changes in trees composition and management of the cattle fields, influenced US diversity. Today, the herbaceous composition studies show that, under dense monospecific population of E. angustifolia, the pasture reduces forage quality because of the dominance of non-palatable species. Stands’ border areas combine an enhanced nitrogen content in soils, and enough light to develop a herbaceous community of annual and perennial grasses and forbs. An increment on biodiversity and spontaneous forage biomass is noticed after the Russian olive plants are removed.Describe la evolucion de la comunidad vegetal bajo las areas invadidase por Elaeagnus angustifolia y lo cambios en la biodiversidad durante 25 años.David Publisher2018-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfKlich, María G. (2018). Elaeagnus Angustifolia Colonization and Understory Floristic Successional Patterns at Mid Valley, North Patagonia, Argentina. Journal of Environmental Science and Engineering A; 7; 228-237.2162-5263http://www.davidpublisher.org/index.php/Home/Article/index?id=37979.htmlhttps://rid.unrn.edu.ar/jspui/handle/20.500.12049/5291eng7Journal of Environmental Science and Engineering Ainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/4.0/reponame:RID-UNRN (UNRN)instname:Universidad Nacional de Río Negro2025-09-29T14:29:17Zoai:rid.unrn.edu.ar:20.500.12049/5291instacron:UNRNInstitucionalhttps://rid.unrn.edu.ar/jspui/Universidad públicaNo correspondehttps://rid.unrn.edu.ar/oai/snrdrid@unrn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:43692025-09-29 14:29:17.499RID-UNRN (UNRN) - Universidad Nacional de Río Negrofalse
dc.title.none.fl_str_mv Elaeagnus angustifolia Colonization and Understory Floristic Successional Patterns at Mid Valley, North Patagonia, Argentina
title Elaeagnus angustifolia Colonization and Understory Floristic Successional Patterns at Mid Valley, North Patagonia, Argentina
spellingShingle Elaeagnus angustifolia Colonization and Understory Floristic Successional Patterns at Mid Valley, North Patagonia, Argentina
Klich, María G.
Ciencias Agrarias
Elaeagnus Angustifolia
Invaders
US Vegetation
Forage Resources
Successions
Ciencias Agrarias
title_short Elaeagnus angustifolia Colonization and Understory Floristic Successional Patterns at Mid Valley, North Patagonia, Argentina
title_full Elaeagnus angustifolia Colonization and Understory Floristic Successional Patterns at Mid Valley, North Patagonia, Argentina
title_fullStr Elaeagnus angustifolia Colonization and Understory Floristic Successional Patterns at Mid Valley, North Patagonia, Argentina
title_full_unstemmed Elaeagnus angustifolia Colonization and Understory Floristic Successional Patterns at Mid Valley, North Patagonia, Argentina
title_sort Elaeagnus angustifolia Colonization and Understory Floristic Successional Patterns at Mid Valley, North Patagonia, Argentina
dc.creator.none.fl_str_mv Klich, María G.
author Klich, María G.
author_facet Klich, María G.
author_role author
dc.subject.none.fl_str_mv Ciencias Agrarias
Elaeagnus Angustifolia
Invaders
US Vegetation
Forage Resources
Successions
Ciencias Agrarias
topic Ciencias Agrarias
Elaeagnus Angustifolia
Invaders
US Vegetation
Forage Resources
Successions
Ciencias Agrarias
dc.description.none.fl_txt_mv Fil: Klich, María G. Universidad Nacional de Río Negro. Escuela de Veterinaria. Río Negro, Argentina.
From circa 1970, Elaeagnus angustifolia (olivillo, Russian olive) has been a notorious invader in the valley livestock fields at Mid Valley of Rio Negro, in North Patagonia, Argentina. The species colonized riparian and plain areas forming different stands. Once introduced in this semiarid region, the seasonal and yearly climatic variations, as well as the flow regimen of the river, influenced the colonization speed. Depending on the landscape, E. angustifolia stands may develop as monospecific groups or in associations with other trees, leaving some uninvaded areas in-between. The different shapes and the main species forming the canopy of the stands, affect the floristic composition, and the cattle forage quality, of the US (Understory) community, if compared with the uninvaded zones. Other herbaceous community can be distinguished at the stands’ border. The description of the different stages on E. angustifolia colonization in Mid Valley for 25 years, shows that the colonization was hastened by rainy years and wet soils. Once established, and while the new specimens reached the reproductive age, the enhancement of the population was the result of vegetative sprouting and diminished US diversity. This period was immediately followed by drought years, but the amelioration of soil quality of the already nitrogen fixating roots and the attenuation of incident sunlight, benefited herbaceous strata under the canopy of all the stand with Russian olive. Posterior changes in trees composition and management of the cattle fields, influenced US diversity. Today, the herbaceous composition studies show that, under dense monospecific population of E. angustifolia, the pasture reduces forage quality because of the dominance of non-palatable species. Stands’ border areas combine an enhanced nitrogen content in soils, and enough light to develop a herbaceous community of annual and perennial grasses and forbs. An increment on biodiversity and spontaneous forage biomass is noticed after the Russian olive plants are removed.
Describe la evolucion de la comunidad vegetal bajo las areas invadidase por Elaeagnus angustifolia y lo cambios en la biodiversidad durante 25 años.
description Fil: Klich, María G. Universidad Nacional de Río Negro. Escuela de Veterinaria. Río Negro, Argentina.
publishDate 2018
dc.date.none.fl_str_mv 2018-06
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv Klich, María G. (2018). Elaeagnus Angustifolia Colonization and Understory Floristic Successional Patterns at Mid Valley, North Patagonia, Argentina. Journal of Environmental Science and Engineering A; 7; 228-237.
2162-5263
http://www.davidpublisher.org/index.php/Home/Article/index?id=37979.html
https://rid.unrn.edu.ar/jspui/handle/20.500.12049/5291
identifier_str_mv Klich, María G. (2018). Elaeagnus Angustifolia Colonization and Understory Floristic Successional Patterns at Mid Valley, North Patagonia, Argentina. Journal of Environmental Science and Engineering A; 7; 228-237.
2162-5263
url http://www.davidpublisher.org/index.php/Home/Article/index?id=37979.html
https://rid.unrn.edu.ar/jspui/handle/20.500.12049/5291
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 7
Journal of Environmental Science and Engineering A
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/4.0/
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv David Publisher
publisher.none.fl_str_mv David Publisher
dc.source.none.fl_str_mv reponame:RID-UNRN (UNRN)
instname:Universidad Nacional de Río Negro
reponame_str RID-UNRN (UNRN)
collection RID-UNRN (UNRN)
instname_str Universidad Nacional de Río Negro
repository.name.fl_str_mv RID-UNRN (UNRN) - Universidad Nacional de Río Negro
repository.mail.fl_str_mv rid@unrn.edu.ar
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