[Lisfauba] Búsqueda de DOS becarios/as doctorales 2024-2028

Vie Mar 22 09:18:53 ART 2024

*Búsqueda de **DOS** becarios/as doctorales 2024-2028.*

*Tema: *Con o sin ganado: efectos del abandono pastoril sobre las
comunidades de plantas, microbiota del suelo y los artrópodos.

(1) Microbiota del suelo.

(2) Artrópodos.

*Descripción del tema*: Los pastizales cubren un tercio del planeta y
brindan funciones y servicios ecosistémicos esenciales. Actualmente están
amenazados por cambios en el uso de la tierra, sobreexplotación y
degradación. Para comprender el papel de la ganadería en el mantenimiento
de los pastizales y los servicios que proveen, se evaluarán los cambios
producidos con la exclusión del ganado en un gradiente edafoclimático de
1200 km que abarca los pastizales Rioplatenses de Argentina, Uruguay y
Brasil. Los proyectos doctorales examinarán las respuestas de las
comunidades de plantas, artrópodos y microorganismos del suelo. Ambos
proyectos se enmarcan en un proyecto de colaboración entre Argentina,
Brasil, Uruguay y Suiza, con sede en el Instituto Federal WSL y financiado
por la línea SPIRIT del Fondo Nacional de Ciencias de Suiza. Las tesis
doctorales proporcionarán conocimientos valiosos para la conservación,
protección y restauración de los pastizales, al tiempo que contribuirá a la
teoría ecológica general.

*Requisitos indispensables para postularse:*

Título de grado en Agronomía, Biología, Ciencias Ambientales o carreras
afines (Recibido antes del 15-06-2024).

Buena predisposición para trabajar en el campo y viajar distancias
considerables.

Habilidades de comunicación sólidas en castellano e inglés.

Licencia de conducir al día.

Actitud proactiva y disposición para integrarse a un equipo internacional y
diverso.

*Requisitos deseables y valorados positivamente:*

Haber desarrollado tesis de grado, tener publicaciones o presentaciones en
congresos y/o experiencia docente (ayudantías).

Conocimientos en ecología de plantas y (1) biología de suelo o (2)
artrópodos.

Conocimientos básicos de manejo de datos, análisis estadísticos y/o similar.

*Lugar de trabajo*:

(1) IFEVA <https://www.ifeva.edu.ar/>, Facultad de Agronomía, UBA, Av. San
Martín 4453, C1417DSE, Buenos Aires, Argentina.

(2) CERZOS <https://cerzos.conicet.gov.ar/>, CONICET, UNS, San Andrés 850,
8000 Bahía Blanca, Buenos  Aires, Argentina.

*Cierre de la convocatoria:* 30 de abril 2024. *Entrevistas:* A partir del
10 de mayo 2024. *Comunicación del resultado:* 15 de junio de 2024. *Inicio
de la beca*: 1 de agosto 2024

*Directores (1)*: Laura Yahdjian, Pedro Tognetti y Anita Risch– IFEVA –
microbiota del suelo.

*Directores (2)*: Hugo Marrero, Pedro Tognetti y Anita Risch – CERZOS –
artrópodos.

*Estipendio mensual*: Similar a beca doctoral CONICET/AGENCIA (LINK
<https://www.conicet.gov.ar/wp-content/uploads/ESTIPENDIOS-POR-LOCALIDADES-ENERO-2024.pdf>
).

*Duración*: 48 meses

*Dedicación*: tiempo completo (40 h/semana).

*Contacto*: Para postularse, envíe un correo electrónico con el asunto
[SOLICITUD DE BECA DOCTORAL (1)/(2)] a Pedro Tognetti
<https://scholar.google.com.ar/citations?user=BcAg54MAAAAJ&hl=es>
tognetti en agro.uba.ar, adjuntando un CV (hasta 5 páginas), una carta de
intención (1 página) e información de contacto de dos personas que puedan
proporcionar referencias.

 ++++++++++++++++++++++++++++++++++++

*Call for TWO Doctoral Scholarships 2024-2028.*

*Topic: *With or without livestock: effects of pastoral abandonment on
plant communities, soil microbiota, and arthropods.

(1) Soil Microbiota.

(2) Arthropods.

*Topic Description:* Grasslands cover one-third of the planet and provide
essential ecosystem functions and services. Currently threatened by changes
in land use, overexploitation, and degradation, understanding the role of
livestock in maintaining grasslands and the services they provide is
crucial. We will assess changes resulting from livestock exclusion across a
1200 km edaphoclimatic gradient covering the Rioplatense grasslands of
Argentina, Uruguay, and Brazil. Doctoral projects will examine responses of
plant, arthropod, and soil microorganism communities. Both projects are
part of a collaborative initiative between Argentina, Brazil, Uruguay, and
Switzerland, based at the Federal Institute WSL and funded by Switzerland's
National Science Foundation SPIRIT line. The doctoral theses will provide
valuable insights for the conservation, protection, and restoration of
grasslands while contributing to general ecological theory.

*Essential Requirements to Apply:*

Bachelor's degree in Agronomy, Biology, Environmental Sciences, or related
fields (received before June 15, 2024).

Willingness to work in the field and travel considerable distances.

Strong communication skills in Spanish and English.

Valid driver's license.

Proactive attitude and willingness to integrate into an international and
diverse team.

*Desirable and Valued Qualifications:*

Previous thesis work, publications, conference presentations, and/or
teaching experience.

Knowledge in plant ecology and (1) soil biology or (2) arthropods.

Basic skills in data management, statistical analysis, and/or similar.

*Workplace:*

(1) IFEVA <https://www.ifeva.edu.ar/>, Facultad de Agronomía, UBA, Av. San
Martín 4453, C1417DSE, Buenos Aires, Argentina.

(2) CERZOS <https://cerzos.conicet.gov.ar/>, CONICET, UNS, San Andrés 850,
8000 Bahía Blanca, Buenos  Aires, Argentina.

*Application Deadline*: April 30, 2024.                    *Interviews*:
Starting from May 10, 2024.

*Result Communication*: June 15, 2024.                 *Scholarship Start*:
August 1, 2024.

*Supervisors:*

*(a)*: Laura Yahdjian, Pedro Tognetti y Anita Risch– IFEVA – microbiota del
suelo.

*(b)*: Hugo Marrero, Pedro Tognetti y Anita Risch – CERZOS – artrópodos.

*Monthly Stipend:* Comparable to CONICET/AGENCY doctoral scholarships (LINK
<https://www.conicet.gov.ar/wp-content/uploads/ESTIPENDIOS-POR-LOCALIDADES-ENERO-2024.pdf>
).

*Duration*: 48 months.

*Dedication*: Full-time (40 hours/week).

Contact: To apply, send an email with the subject [SOLICITUD DE BECA
DOCTORAL (1)/(2)] to Pedro Tognetti
<https://scholar.google.com.ar/citations?user=BcAg54MAAAAJ&hl=es>
tognetti en agro.uba.ar, attaching a CV (up to 5 pages), a one-page letter of
intent, and contact information for two individuals who can provide
references.

++++++++++++++++++++++++++++++++++++
Extended description of the project

*Background and rationale: *Grasslands cover up to 40% of the world’s
terrestrial surface and provide myriads of ecosystem functions (e.g.,
nutrient cycling, decomposition) and services to people (e.g., food, water
regulation). Often intensively grazed by domestic livestock, grasslands are
central for planetary wellbeing, but are at the same time seriously
endangered by land use change, overexploitation, and degradation. Reducing
grazing pressure, or completely excluding livestock, does however, not only
result in economic losses, but can lead to further degradation which is
both ecologically and economically counterproductive for the sustainable
use of these ecosystems. To halt and reverse land degradation and the
concomitant decline in global biodiversity, it thus is indispensable to
understand the role of livestock in maintaining, preserving and, if needed,
restoring above- and belowground components of grassland ecosystems, as
proclaimed in the United Nations “Decade on Ecosystem Restoration
(2021-2030). This understanding is crucial to guarantee the long-term
sustainability of grasslands and the ecosystem functions and services on
which we depend.

*Main objectives and hypotheses within the frame of the postdoc: *we plan
to fill this existing gap in knowledge and aim to understand how
belowground communities (soil mesofauna including acari and collembola) and
their biotic interaction networks interactively respond to livestock
presence or their removal and how these changes affect the functioning of
grasslands and the services they provide. We will work across a 1200 km
edaphoclimatic gradient ranging from Argentina to Uruguay and Brazil – the
Río de la Plata grasslands – which are among the world's most important and
diverse grazing lands for food and forage production. The specific
objectives are to (1) understand how changes in the plant community due to
long-term livestock exclusion (increases in plant biomass, decreases in
forage quality and plant species richness) affect the abundance and
richness of soil mesofauna; (2) assess alterations in biotic networks
(plant-soil mesofauna) with and without livestock; (3) quantify the effects
of changes in plant-mesofauna interactions on ecosystem functions and
services; and (4) analyze how these responses change across the large
edaphoclimatic gradient of the Rio de la Plata grasslands with or without
livestock present.

*Methods: *We will use 19 established long-term experimental grazing
exclosures and associated grazed control plots located across Argentina,
Uruguay, and Brazil. Each site has pre-existing long-term data on plant
community composition and biomass production, and we will collect a novel
standardized dataset, containing soil mesofauna community composition and
abundance data, as well as information on ecosystem functions and services
in both grazed and ungrazed replicate plots. We will analyze these data to
explore how changes in and interactions among biotic communities are linked
to ecosystem functioning and services.

*Main Project Significance: *The pressure to increase food production for a
growing human population poses a great threat for grassland ecosystems.
Filling key gaps in our understanding on how livestock affects grassland
biodiversity, ecosystem functions and services is highly relevant to
fulfill global commitments (e.g., UN Sustainable Development Goals for
2030). By providing a mechanistic understanding on how livestock controls
interactions among biotic communities and their abiotic environment and how
this affects ecosystem functions, we will push the frontiers of basic
science forward, contributing to general ecological theory in the fields of
plant, soil, and soil mesofauna (i.e., acari and collembola) ecology, as
well as to grassland conservation, protection, and restoration. At the same
time, our highly topical findings will make an invaluable contribution
towards sustainable management goals and will help to inform farmers, land
managers and policy makers in Argentina, Uruguay, and Brazil and at the
global scale about how to best protect grassland ecosystem services on
which we depend.

-- 
Pedro M. Tognetti
-------------------------------
Facultad de Agronomía - IFEVA
UBA - CONICET
Av San Martin 4453, Buenos Aires, Argentina
Google-Scholar
<https://scholar.google.com.ar/citations?user=BcAg54MAAAAJ&hl=es> / ORC-ID
<https://orcid.org/0000-0001-7358-1334>
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