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Article ; Online: Spatial, Temporal and Ecological Patterns of Peri-Urban Forest Transitions. An Example From Subtropical Argentina

Yohana G. Jimenez / Sergio J. Ceballos / Ezequiel Aráoz / Cecilia Blundo / Julieta Carilla / Agustina Malizia / H. Ricardo Grau

Frontiers in Forests and Global Change, Vol

2022 Volume 5

Abstract: Most studies on forest transition (FT) have focused on temporal patterns of forest cover across whole countries or regions, without much consideration of the local spatio-temporal heterogeneity or the species composition of new forests. We hypothesize ... ...

Abstract	Most studies on forest transition (FT) have focused on temporal patterns of forest cover across whole countries or regions, without much consideration of the local spatio-temporal heterogeneity or the species composition of new forests. We hypothesize that peri-urban forest transitions are driven by processes associated with urban-based economies and functioning, which define spatial characteristics of new forests. We analyzed the patterns of peri-urban forest expansion detected during the past three decades in the Lules watershed, a montane area of ca. 100,000 ha around San Miguel de Tucumán (SMT), an urban center of ca. one million inhabitants in the Andean foothills of subtropical Argentina. New forests (4,600 ha) were observed through the watershed, but they were more frequent at short distances (1–15 km) from the urban and second home residential areas. New forests nearby SMT are characterized by higher plant diversity largely due to a higher proportion of exotic species. In some cases, these exotic species dominated new forests diminishing stand-level biodiversity. Second-home residential areas, a byproduct of the urban centers in intermontane valleys, replicate the spatial patterns of exotic-dominated forest transition observed around SMT. We argue that peri-urban FT provides an early characterization of the future patterns of spontaneous forest transition with increased presence of globalized species which may locally increase species richness. We use the case study to discuss emerging research lines and to emphasize the importance of urban-centered land use policies (e.g., associated to urban-based uses such as recreation or watershed conservation) as key targets for promoting new forests more beneficial for future generations.
Keywords	land use change ; exurbanziation ; exotic plants ; second home ; accessibility ; Forestry ; SD1-669.5 ; Environmental sciences ; GE1-350
Subject code	710 ; 910
Language	English
Publishing date	2022-04-01T00:00:00Z
Publisher	Frontiers Media S.A.
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Long-Term Environmental and Social Monitoring in the Andes

Julieta Carilla / Ezequiel Aráoz / Oriana Osinaga Acosta / Agustina Malizia / Matilde Malizia / Yohana Jimenez / Manuel Peralvo / Alexandra Garces / Geovanna Lasso / Luis Daniel Llambí

Mountain Research and Development, Vol 43, Iss 2, Pp A1-A

State of the Art, Knowledge Gaps, and Priorities for an Integrated Agenda

2023 Volume 9

Abstract: Andean social–ecological systems (SES) play a key role in the livelihoods of South American people by conserving biodiversity, providing natural resources, and regulating water supply. Long-term social–ecological monitoring (LTSEM) of Andean SES needs to ...

Abstract	Andean social–ecological systems (SES) play a key role in the livelihoods of South American people by conserving biodiversity, providing natural resources, and regulating water supply. Long-term social–ecological monitoring (LTSEM) of Andean SES needs to be coordinated to inform sustainable management and increase resilience. We combined quantitative and qualitative approaches to identify the state of the art, knowledge gaps, and monitoring priorities for a research agenda targeted toward Andean LTSEM. We carried out participatory and transdisciplinary meetings to design a conceptual model of the functioning and monitoring of Andean SES. This was contrasted with the themes and labels of LTSEMs identified through an electronic survey and active searches of bibliographies and montane monitoring networks. Most LTSEM addressed biophysical issues, with a minor fraction addressing social aspects; participatory efforts were very rare. By combining both approaches, we identified research priorities that were grouped into 5 categories. Our main proposals advocate: (1) the development of integrated models of Andean SES to frame a transdisciplinary approach in long-term studies, (2) the coordination of independent LTSEMs to forecast the functioning of Andean SES under environmental change scenarios, (3) the inclusion of external dynamics and drivers on Andean systems, (4) the promotion of science–policy dialogue to attain a more effective governance of mountain SES, and (5) the increase of information accessibility to improve the adaptive management of Andean SES.
Keywords	adaptive management ; codesign ; comanagement ; conceptual model ; global change ; participatory monitoring ; social–ecological systems ; Environmental sciences ; GE1-350
Language	English
Publishing date	2023-05-01T00:00:00Z
Publisher	International Mountain Society
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Tendencias sucesionales de los bosques montanos subtropicales del noroeste argentino Successional patterns of subtropical montane forest from northwestern Argentina

Julieta Carilla / Ricardo Grau

Bosque (Valdivia), Vol 32, Iss 2, Pp 97-

2011 Volume 111

Abstract: Los bosques montanos subtropicales del noroeste argentino forman un mosaico de diferentes unidades boscosas originadas por la reducción de la presión ganadera en distintas etapas sucesionales. Este estudio analizó la trayectoria sucesional de cuatro ... ...

Abstract	Los bosques montanos subtropicales del noroeste argentino forman un mosaico de diferentes unidades boscosas originadas por la reducción de la presión ganadera en distintas etapas sucesionales. Este estudio analizó la trayectoria sucesional de cuatro situaciones boscosas con diferente composición, estructura y demografía, incluyendo tres situaciones de bosques secundarios dominados por Alnus acuminata, Crinodendron tucumanum y Podocarpus parlatorei, y una de bosques maduros dominados por mirtáceas. Se monitorearon 10 parcelas permanentes establecidas en 1991 en la sierra de San Javier, Tucumán a 1.700 m s.n.m., y remedidas en 1996, 2001 y 2007. Los bosques secundarios de A. acuminata y C. tucumanum acumularon biomasa rápidamente, alcanzando 181 t/ha en pocas décadas. Los bosques de P. parlatorei alcanzaron valores elevados de biomasa (393 t/ha), similar a los bosques maduros de mirtáceas (418 t/ha). En ambas situaciones disminuyó la biomasa debido a la muerte de especies pioneras que acumularon gran cantidad de área basal y al reducido reclutamiento de especies arbóreas sucesionalmente tardías. Se concluyó que, a pesar de la variabilidad en las tasas de cambio, los bosques secundarios tendieron a converger composicionalmente hacia bosques de mirtáceas, con un lento reemplazo de especies de bosque maduro y un abundante reclutamiento de especies de sotobosque, destacándose Solanum grossum. Estos estudios a largo plazo son útiles para entender la dinámica de los bosques de montaña y sus servicios ecosistémicos, como su efecto sobre la fijación de carbono, protección de cuencas fluviales y conservación de la biodiversidad regional. Subtropical montane forests from NW Argentina are characterized by a mosaic of different forest unities originated after grazing pressure reduction in different successional stages. This study analyzed successional trajectory of four forest situations, in terms of composition, structure and demography; including three secondary forest situations dominated by Alnus acuminata, Crinodendron tucumanum and Podocarpus parlatorei, and one old grow forests situation dominated by Myrtaceae family species. Ten permanent plots established at 1,700 m asl in Sierra San Javier, Tucumán, were permanently monitored in 1991 and re-measured in 1996, 2001 and 2007. Alnus acuminata and C. tucumanum secondary forests presented a fast accumulation of biomass, reaching 181 t/ha in few decades. P. parlatorei forests reached high values of biomass (393 t/ha), similar to those reached by Myrtaceae forest (418 t/ha). However, in both situations, forest biomass decreased due to the mortality of pioneer species that accumulated great amount of basal area and to the low recruitment of old growth forest species. We conclude that despite variability in change rates, secondary forest tended to converge in composition towards more diverse Myrtaceae forest with slow replacement of old growth species and high understory treelet recruitment, as Solanum grossum. These long term studies are useful to understand montane forest dynamic and their ecosystems services, such as their effect in carbon sequestration, watershed protection and regional biodiversity conservation.
Keywords	biomasa ; parcelas permanentes ; Podocarpus parlatorei ; sucesión secundaria ; tasas demográficas ; biomass ; permanent plots ; secondary succession ; demographic rates ; Forestry ; SD1-669.5 ; Agriculture ; S ; DOAJ:Forestry ; DOAJ:Agriculture and Food Sciences
Language	English
Publishing date	2011-01-01T00:00:00Z
Publisher	Universidad Austral de Chile, Facultad de Ciencias Forestales
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Posgrados

José Ricardo Ariza / Julieta Carilla / Natalia Paola Czytajlo / Marisa Davio / María Fernandez de Ullivarri / Estela Noli / Gerhard Rainer

Población & Sociedad, Vol 18, Iss

2018 Volume 2

Keywords	Social Sciences ; H ; Social sciences (General) ; H1-99
Language	Spanish
Publishing date	2018-01-01T00:00:00Z
Publisher	Universidad Nacional de La Pampa, Facultad de Ciencias Humanas
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Posgrados

José Ricardo Ariza / Julieta Carilla / Natalia Paola Czytajlo / Marisa Davio / María Fernandez de Ullivarri / Estela Noli / Gerhard Rainer

Población & Sociedad, Vol 18, Iss

2018 Volume 2

Keywords	Social Sciences ; H ; Social sciences (General) ; H1-99
Language	Spanish
Publishing date	2018-01-01T00:00:00Z
Publisher	Universidad Nacional de La Pampa, Facultad de Ciencias Humanas
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Mature Andean forests as globally important carbon sinks and future carbon refuges

Alvaro Duque / Miguel A. Peña / Francisco Cuesta / Sebastián González-Caro / Peter Kennedy / Oliver L. Phillips / Marco Calderón-Loor / Cecilia Blundo / Julieta Carilla / Leslie Cayola / William Farfán-Ríos / Alfredo Fuentes / Ricardo Grau / Jürgen Homeier / María I. Loza-Rivera / Yadvinder Malhi / Agustina Malizia / Lucio Malizia / Johanna A. Martínez-Villa /

Jonathan A. Myers / Oriana Osinaga-Acosta / Manuel Peralvo / Esteban Pinto / Sassan Saatchi / Miles Silman / J. Sebastián Tello / Andrea Terán-Valdez / Kenneth J. Feeley

Nature Communications, Vol 12, Iss 1, Pp 1-

2021 Volume 10

Abstract: Here, the authors investigate the aboveground carbon sink efficiency of Andean forests. The study shows the high potential of these forests to serve as future carbon refuges, and urges to reduce deforestation and increase restoration. ...

Abstract	Here, the authors investigate the aboveground carbon sink efficiency of Andean forests. The study shows the high potential of these forests to serve as future carbon refuges, and urges to reduce deforestation and increase restoration.
Keywords	Science ; Q
Language	English
Publishing date	2021-04-01T00:00:00Z
Publisher	Nature Portfolio
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Author Correction

Jonathan A. Myers / Oriana Osinaga-Acosta / Manuel Peralvo / Esteban Pinto / Sassan Saatchi / Miles Silman / J. Sebastián Tello / Andrea Terán-Valdez / Kenneth J. Feeley

Nature Communications, Vol 12, Iss 1, Pp 1-

Mature Andean forests as globally important carbon sinks and future carbon refuges

2021 Volume 1

Keywords	Science ; Q
Language	English
Publishing date	2021-06-01T00:00:00Z
Publisher	Nature Portfolio
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Red Argentina de Parcelas Permanentes de Bosques Nativos para promover colaboraciones científicas en estudios de largo plazo

Walter A. Medina / Lucas A. Garibaldi / Stella Giannoni / Matías G. Goldenberg / Marcelo González Peñalba / Yohana G. Jimenez / Sebastián Kees / Graciela N. Klekailo / Martín Lara / Patricio Mac Donagh / Lucio R. Malizia / Flavia Mazzini / Romina D. Fernández / Facundo J. Oddi / Dardo Paredes / Pablo L. Peri / Carlos Persini / Darién E. Prado / Roberto M. Salas /

Ana Srur / Mariana Villagra / Patricia Zelaya / Pablo E. Villagra / Jimena Saucedo Miranda / Cecilia Blundo / Agustina Malizia / Oriana Osinaga Acosta / Julieta Carilla / Ricardo Grau / Paula I. Campanello / Aníbal Cuchietti / Ignacio Gasparri / Genoveva Gatti / Dante Loto / Guillermo Martínez Pastur / Sergio Ceballos / Mariano Amoroso / Natalia Andino / Daniela Arpigiani / Valeria Aschero / Ignacio M. Barberis / Natalia A. Bedrij / Renata Nicora Chequin / Verónica Chillo / Beatriz Eibl / Pablo Eliano

Ecología Austral, Vol 32, Iss

2022 Volume 2

Abstract: Las parcelas forestales permanentes son áreas de muestreo donde se registran periódicamente la identidad, abundancia y tamaño de los árboles, para estudiar cómo cambian los bosques en relación con el clima, los disturbios naturales y los usos y manejos. ... ...

Abstract	Las parcelas forestales permanentes son áreas de muestreo donde se registran periódicamente la identidad, abundancia y tamaño de los árboles, para estudiar cómo cambian los bosques en relación con el clima, los disturbios naturales y los usos y manejos. Hasta hoy, los patrones de cambio observados con parcelas permanentes en la Argentina tuvieron alcance local o regional. Para potenciar los vínculos entre los diferentes grupos de trabajo que promuevan colaboraciones a escalas intra- e inter-regionales creamos la Red Argentina de Parcelas Permanentes de Bosques Nativos (RAPP), abarcando las regiones forestales de los Bosques Andino-Patagónicos, Chaco Seco, Chaco Húmedo, Monte de Sierras y Bolsones, Monte de Llanuras y Mesetas, Selva Paranaense y Yungas. Aquí sintetizamos y caracterizamos la información de 317 parcelas permanentes (328.9 ha) incluidas en la RAPP, describiendo su distribución geográfica, objetivos, principales aspectos metodológicos y características de los bosques donde están establecidas (e.g., disturbios, tenencia de la tierra, estructura, riqueza de especies). Asimismo, se discute la complementariedad entre la RAPP y los inventarios nacionales de bosques nativos. Las parcelas se distribuyen entre 22.02° y 54.89° S y entre 19 y 2304 m s. n. m., aunque están concentradas principalmente en el Subtrópico (Chaco Seco, Chaco Húmedo, Selva Paranaense y Yungas) y en los Bosques Andino-Patagónicos. En todas las parcelas se identifica la taxonomía de los árboles y se miden diferentes variables dasométricas, fundamentales para responder preguntas ecológicas a una mayor escala mediante colaboraciones. Esperamos continuar incorporando grupos de trabajo a la RAPP e incentivar el establecimiento de nuevas parcelas permanentes en regiones poco representadas (e.g., Monte, Espinal y Delta e Islas del Paraná). La meta es que la RAPP permita avanzar en el estudio a largo plazo de todos los bosques nativos de la Argentina, aumentando la cobertura nacional y las interacciones entre los grupos de trabajo.
Keywords	metadatos de las parcelas ; monitoreo de bosques ; regiones forestales ; Environmental sciences ; GE1-350 ; Ecology ; QH540-549.5
Language	English
Publishing date	2022-11-01T00:00:00Z
Publisher	Asociación Argentina de Ecología
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Elevation and latitude drives structure and tree species composition in Andean forests

Agustina Malizia / Cecilia Blundo / Julieta Carilla / Oriana Osinaga Acosta / Francisco Cuesta / Alvaro Duque / Nikolay Aguirre / Zhofre Aguirre / Michele Ataroff / Selene Baez / Marco Calderón-Loor / Leslie Cayola / Luis Cayuela / Sergio Ceballos / Hugo Cedillo / William Farfán Ríos / Kenneth J Feeley / Alfredo Fernando Fuentes / Luis E Gámez Álvarez /

Ricardo Grau / Juergen Homeier / Oswaldo Jadan / Luis Daniel Llambi / María Isabel Loza Rivera / Manuel J Macía / Yadvinder Malhi / Lucio Malizia / Manuel Peralvo / Esteban Pinto / Sebastián Tello / Miles Silman / Kenneth R Young

PLoS ONE, Vol 15, Iss 4, p e

Results from a large-scale plot network.

2020 Volume 0231553

Abstract: Our knowledge about the structure and function of Andean forests at regional scales remains limited. Current initiatives to study forests over continental or global scales still have important geographical gaps, particularly in regions such as the ... ...

Abstract	Our knowledge about the structure and function of Andean forests at regional scales remains limited. Current initiatives to study forests over continental or global scales still have important geographical gaps, particularly in regions such as the tropical and subtropical Andes. In this study, we assessed patterns of structure and tree species diversity along ~ 4000 km of latitude and ~ 4000 m of elevation range in Andean forests. We used the Andean Forest Network (Red de Bosques Andinos, https://redbosques.condesan.org/) database which, at present, includes 491 forest plots (totaling 156.3 ha, ranging from 0.01 to 6 ha) representing a total of 86,964 identified tree stems ≥ 10 cm diameter at breast height belonging to 2341 identified species, 584 genera and 133 botanical families. Tree stem density and basal area increases with elevation while species richness decreases. Stem density and species richness both decrease with latitude. Subtropical forests have distinct tree species composition compared to those in the tropical region. In addition, floristic similarity of subtropical plots is between 13 to 16% while similarity between tropical forest plots is between 3% to 9%. Overall, plots ~ 0.5-ha or larger may be preferred for describing patterns at regional scales in order to avoid plot size effects. We highlight the need to promote collaboration and capacity building among researchers in the Andean region (i.e., South-South cooperation) in order to generate and synthesize information at regional scale.
Keywords	Medicine ; R ; Science ; Q
Subject code	580
Language	English
Publishing date	2020-01-01T00:00:00Z
Publisher	Public Library of Science (PLoS)
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Large-scale patterns of turnover and Basal area change in Andean forests.

PLoS ONE, Vol 10, Iss 5, p e

2015 Volume 0126594

Abstract: General patterns of forest dynamics and productivity in the Andes Mountains are poorly characterized. Here we present the first large-scale study of Andean forest dynamics using a set of 63 permanent forest plots assembled over the past two decades. In ... ...

Abstract	General patterns of forest dynamics and productivity in the Andes Mountains are poorly characterized. Here we present the first large-scale study of Andean forest dynamics using a set of 63 permanent forest plots assembled over the past two decades. In the North-Central Andes tree turnover (mortality and recruitment) and tree growth declined with increasing elevation and decreasing temperature. In addition, basal area increased in Lower Montane Moist Forests but did not change in Higher Montane Humid Forests. However, at higher elevations the lack of net basal area change and excess of mortality over recruitment suggests negative environmental impacts. In North-Western Argentina, forest dynamics appear to be influenced by land use history in addition to environmental variation. Taken together, our results indicate that combinations of abiotic and biotic factors that vary across elevation gradients are important determinants of tree turnover and productivity in the Andes. More extensive and longer-term monitoring and analyses of forest dynamics in permanent plots will be necessary to understand how demographic processes and woody biomass are responding to changing environmental conditions along elevation gradients through this century.
Keywords	Medicine ; R ; Science ; Q
Subject code	333
Language	English
Publishing date	2015-01-01T00:00:00Z
Publisher	Public Library of Science (PLoS)
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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