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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
08/06/2021 |
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Actualizado : |
08/06/2021 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
CAMBA SANS, G. H.; VERÓN, S. R.; PARUELO, J. |
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Afiliación : |
GONZALO HERNÁN CAMBA SANS, Lab. Análisis Regional y Teledetección, Fac. Agronomía, Univ. Buenos Aires- IFEVA- CONICET, Buenos Aires, Argentina; Univ. Buenos Aires, Fac. Agronomía, Dpto. Métodos Cuantitativos y Sistemas de Información, Buenos Aires, Argentina.; SANTIAGO RAMÓN VERÓN, Instituto Nacional de Tecnología Agropecuaria (INTA), Instituto de Clima y Agua, Castelar, Buenos Aires, Argentina.; JOSÉ PARUELO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Univ. Bs.As. - IFEVA- CONICET, Argentina; Fac. Ciencias, Univ. República, Montevideo, Uruguay. |
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Título : |
Forest strips increase connectivity and modify forests? functioning in a deforestation hotspot. |
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Complemento del título : |
Research article. |
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Fecha de publicación : |
2021 |
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Fuente / Imprenta : |
Journal of Environmental Management, 2021, Volume 290, Article number 112606. Doi: https://doi.org/10.1016/j.jenvman.2021.112606 |
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ISSN : |
0301-4797 |
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DOI : |
10.1016/j.jenvman.2021.112606 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 29 August 2020, Revised 3 April 2021, Accepted 11 April 2021, Available online 28 April 2021. |
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Contenido : |
ABSTRACT. - Land use changes are occurring with unprecedented magnitude and intensity, imposing global impacts on ecosystem services (ES) and biodiversity. While the impacts of land use changes are increasingly recognized, understanding how landscape connectivity is related to ecosystem functioning is lacking. In the Argentinian Dry Chaco, deforestation increased forest fragmentation but strips of native forest (linear remnants) were usually left after clearings. Although the number of ecological studies on forest strips has increased, their contribution to forest connectivity and functioning has not been assessed. We evaluated the contribution of forest strips to forest connectivity and estimated its effect on forests' functioning considering low, moderate, and high species' dispersal abilities in our estimation. The effects of forest strip connectivity contribution to the forests' Ecosystem Services Supply Index (Forests' ESSI) was also analyzed. Forest strips contributed on average 6% and up to 40% to forest connectivity for moderate dispersal abilities, while low and high dispersals presented low values in almost all cases. The connectivity contribution was highest (between 15 and 40%) and variable for moderate dispersal abilities in landscapes with between 25 and 35% of forest cover. High connectivity contribution was generally achieved for low and moderate dispersals when forest strips conformed a network among forest patches. Forest strip connectivity significantly increased the forests? ESSI (between 1.3 and 2.4% per unit of connectivity contribution) and its effect was higher in comparison to forest amount and fragmentation. This study provides insights for planning the location of forest strips and forest remnants in agricultural landscapes, thus increasing forest connectivity for enhancing ecosystem functioning.
© 2021 Elsevier Ltd MenosABSTRACT. - Land use changes are occurring with unprecedented magnitude and intensity, imposing global impacts on ecosystem services (ES) and biodiversity. While the impacts of land use changes are increasingly recognized, understanding how landscape connectivity is related to ecosystem functioning is lacking. In the Argentinian Dry Chaco, deforestation increased forest fragmentation but strips of native forest (linear remnants) were usually left after clearings. Although the number of ecological studies on forest strips has increased, their contribution to forest connectivity and functioning has not been assessed. We evaluated the contribution of forest strips to forest connectivity and estimated its effect on forests' functioning considering low, moderate, and high species' dispersal abilities in our estimation. The effects of forest strip connectivity contribution to the forests' Ecosystem Services Supply Index (Forests' ESSI) was also analyzed. Forest strips contributed on average 6% and up to 40% to forest connectivity for moderate dispersal abilities, while low and high dispersals presented low values in almost all cases. The connectivity contribution was highest (between 15 and 40%) and variable for moderate dispersal abilities in landscapes with between 25 and 35% of forest cover. High connectivity contribution was generally achieved for low and moderate dispersals when forest strips conformed a network among forest patches. Forest strip connectivity significantly in... Presentar Todo |
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Palabras claves : |
Chaco; Connectivity; Conservation; Deforestation; Ecological intensification; Ecosystem function; Ecosystem services; Forest ecosystem; Fragmentation; Land use change; Landscape ecology. |
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Asunto categoría : |
P01 Conservación de la naturaleza y recursos de La tierra |
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Marc : |
LEADER 02973naa a2200313 a 4500
001 1062113
005 2021-06-08
008 2021 bl uuuu u00u1 u #d
022 $a0301-4797
024 7 $a10.1016/j.jenvman.2021.112606$2DOI
100 1 $aCAMBA SANS, G. H.
245 $aForest strips increase connectivity and modify forests? functioning in a deforestation hotspot.$h[electronic resource]
260 $c2021
500 $aArticle history: Received 29 August 2020, Revised 3 April 2021, Accepted 11 April 2021, Available online 28 April 2021.
520 $aABSTRACT. - Land use changes are occurring with unprecedented magnitude and intensity, imposing global impacts on ecosystem services (ES) and biodiversity. While the impacts of land use changes are increasingly recognized, understanding how landscape connectivity is related to ecosystem functioning is lacking. In the Argentinian Dry Chaco, deforestation increased forest fragmentation but strips of native forest (linear remnants) were usually left after clearings. Although the number of ecological studies on forest strips has increased, their contribution to forest connectivity and functioning has not been assessed. We evaluated the contribution of forest strips to forest connectivity and estimated its effect on forests' functioning considering low, moderate, and high species' dispersal abilities in our estimation. The effects of forest strip connectivity contribution to the forests' Ecosystem Services Supply Index (Forests' ESSI) was also analyzed. Forest strips contributed on average 6% and up to 40% to forest connectivity for moderate dispersal abilities, while low and high dispersals presented low values in almost all cases. The connectivity contribution was highest (between 15 and 40%) and variable for moderate dispersal abilities in landscapes with between 25 and 35% of forest cover. High connectivity contribution was generally achieved for low and moderate dispersals when forest strips conformed a network among forest patches. Forest strip connectivity significantly increased the forests? ESSI (between 1.3 and 2.4% per unit of connectivity contribution) and its effect was higher in comparison to forest amount and fragmentation. This study provides insights for planning the location of forest strips and forest remnants in agricultural landscapes, thus increasing forest connectivity for enhancing ecosystem functioning. © 2021 Elsevier Ltd
653 $aChaco
653 $aConnectivity
653 $aConservation
653 $aDeforestation
653 $aEcological intensification
653 $aEcosystem function
653 $aEcosystem services
653 $aForest ecosystem
653 $aFragmentation
653 $aLand use change
653 $aLandscape ecology
700 1 $aVERÓN, S. R.
700 1 $aPARUELO, J.
773 $tJournal of Environmental Management, 2021, Volume 290, Article number 112606. Doi: https://doi.org/10.1016/j.jenvman.2021.112606
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INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
23/04/2015 |
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Actualizado : |
23/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
A - 1 |
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Autor : |
LADO, J.; ALÓS, E.; RODRIGO, M.J.; ZACARÍAS, L. |
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Afiliación : |
JOANNA LADO LINDNER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ENRIQUETA ALÓS, CSIC/ IAS (Instituto de Agricultura Sostenible); MARÍA JESÚS RODRIGO, IATA (Instituto de Agroquímica y Tecnología de Alimentos); LORENZO ZACARÍAS, IATA (Instituto de Agroquímica y Tecnología de Alimentos). |
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Título : |
Light avoidance reduces ascorbic acid accumulation in the peel of Citrus fruit. |
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Fecha de publicación : |
2015 |
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Fuente / Imprenta : |
Plant Science, 2015, v.231, p.138-147. |
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DOI : |
10.1016/j.plantsci.2014.12.002 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 2 October 2014 / Received in revised form 26 November 2014 / Accepted 1 December 2014 / Available online 5 December 2014. |
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Contenido : |
ABSTRACT.
Citrus fruits are highly consumed worldwide and represent one of the most important sources of ascorbic acid (AsA). However, information about the molecular mechanisms regulating AsA accumulation in Citrus fruit and the effects of environmental factors is scarce. In this study we have investigated the effect of fruit shading on AsA content and the expression of AsA biosynthetic, degrading and recycling genes in fruits of different Citrus species. Immature-green fruits were covered at the end of the cell enlargement phase and AsA concentration in the flavedo declined and remained at low levels as compared with light-exposed fruits. Fruit shading marginally altered the expression of genes from the l-galactose pathway and this effect was variable in the four Citrus species. However, specific isoforms (GalUR8 or GalUR12) from the l-galacturonic acid pathway were significantly repressed paralleling the reduction in AsA concentration. No significant effect of shading was detected in transcription of genes of the myo-inositol and l-gulose pathways as well as recycling and degradation. Collectively, results indicate that light avoidance inhibited accumulation of AsA in the flavedo of Citrus fruits and suggest that the l-galacturonic acid pathway has a relevant contribution to AsA content in this tissue. |
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Palabras claves : |
VITAMINA C. |
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Thesagro : |
ANTIOXIDANTES; CITRUS; EXPRESION GENICA; VITAMINAS. |
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Asunto categoría : |
F30 Genética vegetal y fitomejoramiento |
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Marc : |
LEADER 02127naa a2200241 a 4500
001 1052574
005 2019-10-23
008 2015 bl uuuu u00u1 u #d
024 7 $a10.1016/j.plantsci.2014.12.002$2DOI
100 1 $aLADO, J.
245 $aLight avoidance reduces ascorbic acid accumulation in the peel of Citrus fruit.$h[electronic resource]
260 $c2015
500 $aArticle history: Received 2 October 2014 / Received in revised form 26 November 2014 / Accepted 1 December 2014 / Available online 5 December 2014.
520 $aABSTRACT. Citrus fruits are highly consumed worldwide and represent one of the most important sources of ascorbic acid (AsA). However, information about the molecular mechanisms regulating AsA accumulation in Citrus fruit and the effects of environmental factors is scarce. In this study we have investigated the effect of fruit shading on AsA content and the expression of AsA biosynthetic, degrading and recycling genes in fruits of different Citrus species. Immature-green fruits were covered at the end of the cell enlargement phase and AsA concentration in the flavedo declined and remained at low levels as compared with light-exposed fruits. Fruit shading marginally altered the expression of genes from the l-galactose pathway and this effect was variable in the four Citrus species. However, specific isoforms (GalUR8 or GalUR12) from the l-galacturonic acid pathway were significantly repressed paralleling the reduction in AsA concentration. No significant effect of shading was detected in transcription of genes of the myo-inositol and l-gulose pathways as well as recycling and degradation. Collectively, results indicate that light avoidance inhibited accumulation of AsA in the flavedo of Citrus fruits and suggest that the l-galacturonic acid pathway has a relevant contribution to AsA content in this tissue.
650 $aANTIOXIDANTES
650 $aCITRUS
650 $aEXPRESION GENICA
650 $aVITAMINAS
653 $aVITAMINA C
700 1 $aALÓS, E.
700 1 $aRODRIGO, M.J.
700 1 $aZACARÍAS, L.
773 $tPlant Science, 2015$gv.231, p.138-147.
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