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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
04/11/2024 |
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Actualizado : |
04/11/2024 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
GUIDO, A. C.; ALTESOR, A.; CAYSSIALS, V.; LEZAMA, F.; MELLO, A. L.; PARUELO, J.; BAEZA, S. |
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Afiliación : |
ANA CLARA GUIDO, Facultad de Ciencias, Instituto de Ecología y Ciencias Ambientales, Universidad de la República, Montevideo, Uruguay; ALICE ALTESOR, Facultad de Ciencias, Instituto de Ecología y Ciencias Ambientales, Universidad de la República, Montevideo, Uruguay; VALERIE CAYSSIALS, Facultad de Veterinaria, Unidad de Bioestadística, Universidad de la República, Montevideo, Uruguay; FELIPE LEZAMA, Departamento de Sistemas Ambientales, Facultad de Agronomía, Universidad de la República, Montevideo, Uruguay; ANA LAURA MELLO, Dirección Nacional de Biodiversidad y Servicios Ecosistémicos, Ministerio de Ambiente, Ministerio de Ambiente, Uruguay; JOSÉ PARUELO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Fac. Ciencias, Instituto de Ecología y Ciencias Ambientales, UdelaR, Montevideo, Uruguay; IFEVA-Fac. Agronomía, Universidad de Buenos Aires & CONICET, Buenos Aires, Argentina; SANTIAGO BAEZA, Departamento de Sistemas Ambientales, Facultad de Agronomía, Universidad de la República, Montevideo, Uruguay. |
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Título : |
Patterns and drivers of alien plant invasion in Uruguayan grasslands. |
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Complemento del título : |
Special Issue: Invasions in plant communities. |
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Fecha de publicación : |
2024 |
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Fuente / Imprenta : |
Journal of Vegetation Science, September/October 2024, Volume 35, Issue 5, e13306. https://doi.org/10.1111/jvs.13306 |
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ISSN : |
1100-9233 |
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DOI : |
10.1111/jvs.13306 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 14 December 2023, Revised 29 June 2024, Accepted 20 August 2024. -- Correspondence: Guido, A.; Instituto de Ecología y Ciencias Ambientales, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay; email:aguido@fcien.edu.uy --
Co-ordinating Editor: Milan Chytrý. -- Funding: Instituto Nacional de Investigación Agropecuaria; Agencia Nacional de Investigación e Innovación; Comisión Sectorial de Investigación Científica. -- This article is a part of the Special Issue Biological Invasions in Plant Communities, edited by Viktoria Wagner, Marta Carboni, Kwek Yan Chong, Milan Chytrý and Anaclara Guido. -- |
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Contenido : |
ABSTRACT.- Question: Understanding the patterns of alien plant invasions and their underlying drivers is a key step in conserving the remaining native grasslands of Uruguay. We addressed the level of invasion by considering the four invasive alien plants of these ecosystems, Cynodon dactylon, Eragrostis plana, Senecio madagascariensis and Ulex europaeus, throughout the country. Location: Remnant native grasslands of Uruguay, constituting part of the Río de la Plata grasslands. Methods: Extensive fieldwork was carried out over five years of data collection, including hierarchically randomized observations (around 2000) nested in 137 10 × 10-km2 squares covering different geomorphological regions. For each invasive alien species, we constructed distribution maps to show their patterns; for the two most abundant, we fitted models to identify the main explanatory variables at different spatial scales. Results: We found that 77% of the squares were invaded by at least one target species. The level of invasion varied between regions and target plants. The most abundant invasive alien species were Cynodon dactylon and Senecio madagascariensis; while Eragrostis plana and Ulex europaeus were scarce. Cynodon dactylon cover was related to a set of variables at different spatial scales, including climate, topography and several local community descriptors. Senecio madagascariensis cover was positively associated with grassland fragmentation and anthropic disturbance at the landscape, and a few local descriptors. Conclusions: The large sampling effort at the country level, with a randomized design, allowed for a reliable assessment of the level of invasion of Uruguayan grasslands and its possible drivers. This is an important step in the design of policies to conserve Uruguay's remaining native grasslands. We suggest that the prevention should focus on the Basaltic Cuestas region, while control and containment should prioritize the eastern and south-central parts of the country, focusing mainly on Cynodon dactylon management. © 2024 International Association for Vegetation Science. MenosABSTRACT.- Question: Understanding the patterns of alien plant invasions and their underlying drivers is a key step in conserving the remaining native grasslands of Uruguay. We addressed the level of invasion by considering the four invasive alien plants of these ecosystems, Cynodon dactylon, Eragrostis plana, Senecio madagascariensis and Ulex europaeus, throughout the country. Location: Remnant native grasslands of Uruguay, constituting part of the Río de la Plata grasslands. Methods: Extensive fieldwork was carried out over five years of data collection, including hierarchically randomized observations (around 2000) nested in 137 10 × 10-km2 squares covering different geomorphological regions. For each invasive alien species, we constructed distribution maps to show their patterns; for the two most abundant, we fitted models to identify the main explanatory variables at different spatial scales. Results: We found that 77% of the squares were invaded by at least one target species. The level of invasion varied between regions and target plants. The most abundant invasive alien species were Cynodon dactylon and Senecio madagascariensis; while Eragrostis plana and Ulex europaeus were scarce. Cynodon dactylon cover was related to a set of variables at different spatial scales, including climate, topography and several local community descriptors. Senecio madagascariensis cover was positively associated with grassland fragmentation and anthropic disturbance at the landscape, an... Presentar Todo |
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Palabras claves : |
Alien species; Biological invasions; Exotic species; Invasibility; Invasion pattern; Invasive species; Río de la Plata grasslands. |
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Asunto categoría : |
P01 Conservación de la naturaleza y recursos de La tierra |
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Marc : |
LEADER 03682naa a2200313 a 4500
001 1064908
005 2024-11-04
008 2024 bl uuuu u00u1 u #d
022 $a1100-9233
024 7 $a10.1111/jvs.13306$2DOI
100 1 $aGUIDO, A. C.
245 $aPatterns and drivers of alien plant invasion in Uruguayan grasslands.$h[electronic resource]
260 $c2024
500 $aArticle history: Received 14 December 2023, Revised 29 June 2024, Accepted 20 August 2024. -- Correspondence: Guido, A.; Instituto de Ecología y Ciencias Ambientales, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay; email:aguido@fcien.edu.uy -- Co-ordinating Editor: Milan Chytrý. -- Funding: Instituto Nacional de Investigación Agropecuaria; Agencia Nacional de Investigación e Innovación; Comisión Sectorial de Investigación Científica. -- This article is a part of the Special Issue Biological Invasions in Plant Communities, edited by Viktoria Wagner, Marta Carboni, Kwek Yan Chong, Milan Chytrý and Anaclara Guido. --
520 $aABSTRACT.- Question: Understanding the patterns of alien plant invasions and their underlying drivers is a key step in conserving the remaining native grasslands of Uruguay. We addressed the level of invasion by considering the four invasive alien plants of these ecosystems, Cynodon dactylon, Eragrostis plana, Senecio madagascariensis and Ulex europaeus, throughout the country. Location: Remnant native grasslands of Uruguay, constituting part of the Río de la Plata grasslands. Methods: Extensive fieldwork was carried out over five years of data collection, including hierarchically randomized observations (around 2000) nested in 137 10 × 10-km2 squares covering different geomorphological regions. For each invasive alien species, we constructed distribution maps to show their patterns; for the two most abundant, we fitted models to identify the main explanatory variables at different spatial scales. Results: We found that 77% of the squares were invaded by at least one target species. The level of invasion varied between regions and target plants. The most abundant invasive alien species were Cynodon dactylon and Senecio madagascariensis; while Eragrostis plana and Ulex europaeus were scarce. Cynodon dactylon cover was related to a set of variables at different spatial scales, including climate, topography and several local community descriptors. Senecio madagascariensis cover was positively associated with grassland fragmentation and anthropic disturbance at the landscape, and a few local descriptors. Conclusions: The large sampling effort at the country level, with a randomized design, allowed for a reliable assessment of the level of invasion of Uruguayan grasslands and its possible drivers. This is an important step in the design of policies to conserve Uruguay's remaining native grasslands. We suggest that the prevention should focus on the Basaltic Cuestas region, while control and containment should prioritize the eastern and south-central parts of the country, focusing mainly on Cynodon dactylon management. © 2024 International Association for Vegetation Science.
653 $aAlien species
653 $aBiological invasions
653 $aExotic species
653 $aInvasibility
653 $aInvasion pattern
653 $aInvasive species
653 $aRío de la Plata grasslands
700 1 $aALTESOR, A.
700 1 $aCAYSSIALS, V.
700 1 $aLEZAMA, F.
700 1 $aMELLO, A. L.
700 1 $aPARUELO, J.
700 1 $aBAEZA, S.
773 $tJournal of Vegetation Science, September/October 2024, Volume 35, Issue 5, e13306. https://doi.org/10.1111/jvs.13306
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INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha actual : |
05/11/2014 |
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Actualizado : |
11/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
B - 1 |
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Autor : |
AGUERRE, M.; REPETTO, J.L.; PÉREZ-RUCHEL, A.; MENDOZA, A.; PINACCHIO, G.; CAJARVILLE, C. |
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Afiliación : |
JOSE LUIS REPETTO CAPELLO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ALEJANDRO FRANCISCO MENDOZA AGUIAR, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Rumen pH and NH3-N concentration of sheep fed temperate pastures and supplemented with sorghum grain. |
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Fecha de publicación : |
2009 |
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Fuente / Imprenta : |
South African Journal of Animal Science, v.39, n.5., p. 246-250, 2009. |
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ISSN : |
0375-1589 |
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DOI : |
10.4314/sajas.v39i1.61157 |
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Idioma : |
Inglés |
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Contenido : |
ABSTRACT:
The aim of this study was to evaluate the effect of sorghum grain supplementation on ruminal pH and NH3-N concentration of wethers consuming a fresh temperate pasture (Lotus corniculatus) in metabolism cages. Sixteen Corriedale x Milchschaf wethers were fed temperate pastures ad libitum and were non-supplemented or supplemented with ground sorghum grain at 5, 10 or 15 g/kg of their body weight (BW). Rumen fluid samples were collected at 0, 1, 2, 3, 4, 5 and 6 h after supplementation through permanent tubes inserted in the rumen. Ruminal pH was measured immediately and NH3-N concentration was determined by direct distillation. Mean daily pH values for non-supplemented wethers and supplemented with 5, 10 and 15 g/kg of their BW were 6.45, 6.14, 6.09 and 5.43, respectively. Significant differences in pH were found between the 15 g/kg supplemented group and non-supplemented, 5 and 10 g/kg supplemented groups, while a trend was found between non-supplemented and 10 g/kg supplemented group. After 0 h, all mean pH values for the non-supplemented group were above 6.15, while values for the 10 and 15 g/kg supplemented groups were below 6.2 and 6.0, respectively. No differences in NH3-N concentration among groups (mean = 37.15 mg/100 mL), between time or interaction between time and treatment were found. There was a correlation between pH and NH3-N when all measurements were considered. Ground sorghum grain supplementation significantly reduced rumen pH when 15 g/kg of BW was provided to wethers fed temperate pastures, but it did not affect NH3-N concentration. MenosABSTRACT:
The aim of this study was to evaluate the effect of sorghum grain supplementation on ruminal pH and NH3-N concentration of wethers consuming a fresh temperate pasture (Lotus corniculatus) in metabolism cages. Sixteen Corriedale x Milchschaf wethers were fed temperate pastures ad libitum and were non-supplemented or supplemented with ground sorghum grain at 5, 10 or 15 g/kg of their body weight (BW). Rumen fluid samples were collected at 0, 1, 2, 3, 4, 5 and 6 h after supplementation through permanent tubes inserted in the rumen. Ruminal pH was measured immediately and NH3-N concentration was determined by direct distillation. Mean daily pH values for non-supplemented wethers and supplemented with 5, 10 and 15 g/kg of their BW were 6.45, 6.14, 6.09 and 5.43, respectively. Significant differences in pH were found between the 15 g/kg supplemented group and non-supplemented, 5 and 10 g/kg supplemented groups, while a trend was found between non-supplemented and 10 g/kg supplemented group. After 0 h, all mean pH values for the non-supplemented group were above 6.15, while values for the 10 and 15 g/kg supplemented groups were below 6.2 and 6.0, respectively. No differences in NH3-N concentration among groups (mean = 37.15 mg/100 mL), between time or interaction between time and treatment were found. There was a correlation between pH and NH3-N when all measurements were considered. Ground sorghum grain supplementation significantly reduced rumen pH when 15 g/kg of BW wa... Presentar Todo |
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Palabras claves : |
AMBIENTE RUMINAL; GRAIN SUPPLEMENTATION; GRANO DE SORGO; NUTRICIÓN DE RUMIANTES; RUMEN ENVIRONMENT; TEMPERATE PASTURE; WETHER. |
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Thesagro : |
LOTUS CORNICULATUS; NUTRICIÓN ANIMAL. |
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Asunto categoría : |
L51 Fisiología Animal - Nutrición |
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Marc : |
LEADER 02531naa a2200313 a 4500
001 1051524
005 2019-10-11
008 2009 bl uuuu u00u1 u #d
022 $a0375-1589
024 7 $a10.4314/sajas.v39i1.61157$2DOI
100 1 $aAGUERRE, M.
245 $aRumen pH and NH3-N concentration of sheep fed temperate pastures and supplemented with sorghum grain.$h[electronic resource]
260 $c2009
520 $aABSTRACT: The aim of this study was to evaluate the effect of sorghum grain supplementation on ruminal pH and NH3-N concentration of wethers consuming a fresh temperate pasture (Lotus corniculatus) in metabolism cages. Sixteen Corriedale x Milchschaf wethers were fed temperate pastures ad libitum and were non-supplemented or supplemented with ground sorghum grain at 5, 10 or 15 g/kg of their body weight (BW). Rumen fluid samples were collected at 0, 1, 2, 3, 4, 5 and 6 h after supplementation through permanent tubes inserted in the rumen. Ruminal pH was measured immediately and NH3-N concentration was determined by direct distillation. Mean daily pH values for non-supplemented wethers and supplemented with 5, 10 and 15 g/kg of their BW were 6.45, 6.14, 6.09 and 5.43, respectively. Significant differences in pH were found between the 15 g/kg supplemented group and non-supplemented, 5 and 10 g/kg supplemented groups, while a trend was found between non-supplemented and 10 g/kg supplemented group. After 0 h, all mean pH values for the non-supplemented group were above 6.15, while values for the 10 and 15 g/kg supplemented groups were below 6.2 and 6.0, respectively. No differences in NH3-N concentration among groups (mean = 37.15 mg/100 mL), between time or interaction between time and treatment were found. There was a correlation between pH and NH3-N when all measurements were considered. Ground sorghum grain supplementation significantly reduced rumen pH when 15 g/kg of BW was provided to wethers fed temperate pastures, but it did not affect NH3-N concentration.
650 $aLOTUS CORNICULATUS
650 $aNUTRICIÓN ANIMAL
653 $aAMBIENTE RUMINAL
653 $aGRAIN SUPPLEMENTATION
653 $aGRANO DE SORGO
653 $aNUTRICIÓN DE RUMIANTES
653 $aRUMEN ENVIRONMENT
653 $aTEMPERATE PASTURE
653 $aWETHER
700 1 $aREPETTO, J.L.
700 1 $aPÉREZ-RUCHEL, A.
700 1 $aMENDOZA, A.
700 1 $aPINACCHIO, G.
700 1 $aCAJARVILLE, C.
773 $tSouth African Journal of Animal Science$gv.39, n.5., p. 246-250, 2009.
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