Mariana Weigandt

Dr. Mariana Weigandt


Research Focus & Metrics

Academic Career Length

13Years (2014-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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22 May 2014 in Ecohydrology
Verified
Journal Article
Closed access
PDF file
MWMariana Weigandt
Mariana Weigandt
JGJavier Gyenge
Javier Gyenge
MFM. E. Fernández
M. E. Fernández
SVS. Varela
S. Varela
TST. Schlichter
T. Schlichter

21 February 2022 in New Forests
Verified
Journal Article
Closed access
PDF file
MWMariana Weigandt
Mariana Weigandt
JVJosé Villacide
José Villacide
EBEmilio Bianchi
Emilio Bianchi
SVSantiago Varela
Santiago Varela

27 May 2023 in Forest Ecology and Management
Verified
Journal Article
Closed access
SVS.A. Varela
S.A. Varela
JDJ.P. Diez
J.P. Diez
FLF. Letourneau
F. Letourneau
EBE. Bianchi
E. Bianchi
MWMariana Weigandt
Mariana Weigandt
MFM.E. Fernández
M.E. Fernández

24 July 2025 in Vegetation Classification and Survey
Verified
Journal Article
Open access
PDF file
SVSantiago Agustín Varela
Santiago Agustín Varela
NCNoelia Cecilia Calamari
Noelia Cecilia Calamari
Fabio Daniel TrincoFabio Daniel Trinco
Fabio Daniel Trinco
JDJuan Pablo Diez
Juan Pablo Diez
MWMariana Weigandt
Mariana Weigandt
SCSonia Beatriz Canavelli
Sonia Beatriz Canavelli
Question: Effective environmental management depends on accurate and efficient assessments of ecological conditions. This study introduces a method that combines remote sensing with a Rapid Assessment Method (RAM) to evaluate the environmental status of land units at the ranch scale. We ask whether this integrated approach can generate spatially explicit information to support the implementation and monitoring of sustainable livestock grazing in native forests. Study area: The study was conducted in three livestock ranches in Argentina. These ranches encompass heterogeneous landscapes characterized by varying soil types, vegetation cover, and topographic features that influence ecological conditions. Methods: Remote sensing imagery was used to delineate Ecological Sites (ESi) based on bio-geomorphic attributes such as soil, topography, and vegetation. These spatial units guided field sampling, where RAM was applied to assess environmental indicators. Field data were integrated into an Environmental Health Index (EHI), summarizing the ecological status of each ESi. Ordinary kriging interpolated EHI values across the landscape, enabling spatial visualization of environmental health patterns and spatial variability. Results: Mapping of EHI values showed that most land units exhibited intermediate to high environmental health, suggesting generally favorable ecological conditions across the ranches. However, some areas had low EHI values associated with signs of disturbance or degradation, including fire, flooding, invasive species, or overgrazing. Conclusions: The integration of remote sensing with RAM provided a detailed overview of ecological conditions at the ranch scale. The results can guide more focused and efficient fieldwork in areas requiring closer monitoring due to potential environmental degradation or changes linked to livestock management. This approach supports the implementation and evaluation of sustainable grazing management in native forests, offering a robust, scalable tool for environmental assessment. Additionally, by optimizing the allocation of sampling effort, it enables more informed decision-making to maintain and enhance ecological health in these production systems. Taxonomic reference: Anton and Zuloaga (2023). Abbreviations: EHI = environmental health index; ESi = ecological site; RAM = rapid assessment methodology; MBGI = silvo pastoral or forest management with integrated livestock.

27 March 2026 in Forest Ecology and Management
Verified
Journal Article
Closed access
MPMercedes Peretti
Mercedes Peretti
MWMariana Weigandt
Mariana Weigandt
ASAnne Sophie Sergent
Anne Sophie Sergent
AMAlejandro Martinez-Meier
Alejandro Martinez-Meier
FLFederico Jorge Letourneau
Federico Jorge Letourneau
SVSantiago A. Varela
Santiago A. Varela