International POLAR WEEK September 2020

20 al 26 de septiembre

volante aquí

 

La Semana Polar tiene como objetivo celebrar la importancia de las regiones polares y alpinas, y la criósfera en general. Se lleva a cabo dos veces al año, alrededor del equinoccio de primavera y otoño, cuando la duración del día y la noche son iguales en todo el mundo. Durante esta semana se realizan distintas actividades alrededor del mundo para crear conciencia sobre la vida polar, hechos, historias, cambio climático, etc. Si deseas saber que otras actividades se estan realizando en el mundo, visita https://www.apecs.is/events/upcoming-event-highlights/international-polar-week-september-2020.html

APECS-Chile también será parte de esta semana, participando con una serie de charlas en:

«Polar week present: breaking the ice with APECS-Chile«

volante aquí

Session 1. 21 Sept. 2020, 15:00 – 16:30 GMT (12:00 hrs. Chile)

Watch video here

Session language: English

Guests: Dra. Andrea Piñones (COPAS, IDEAL Center, UACh) & Dr. Luis Hückstädt (UCSC)

Moderator: Renato Borrás (President APECS-Chile, PUC, CAPES)

 

Title

Defining ecological baselines for sentinel species in high latitude marine ecosystems

 

Summary

Marine top predators integrate ecological information throughout the entire trophic web, providing a unique window into the status of marine ecosystems. However, few studies have used marine top predators to investigate long-term changes in ecosystems (decadal scale or longer), due to the lack of either baseline information about the species and ecosystem structure before human intervention, or else the scarcity of biological data time series long enough to address this type of question. Polar marine vertebrates are particularly relevant in this context. Due to the isolated nature of their habitats, we still have limited knowledge about many of the basic biological aspects, such as patterns of habitat utilization and foraging ecology (including diet composition and even which trophic web(s) they have an impact on). On the other hand, most of these species are vulnerable to the accelerated environmental changes that we are observing due to global climate change. We are facing a race against time to assess what the consequences of these changes are likely to be for high latitude species and ecosystems, an assessment which cannot be done without establishing ecological baselines. With the rise of animal instrumentation (biologging), we are now in a strong position to address many of the information gaps limiting our current analyses. Our talk will focus on how, by using sensors attached to animals, we can now describe in detail (1) the movement patterns and habitat preferences of Antarctic pinnipeds, (2) how we can use the environmental information collected by these predators to understand the physical and biological patterns of these ecosystems, and (3) how we can use marine top predators as sentinels of long-term ecosystem change, allowing us to establish ecological baselines that can help us understand the ongoing environmental changes.

Session 2. 23 Sept. 2020, 15:00 – 16:30 GMT (12:00 hrs. Chile)

Watch video here

Session language: English 

Guest: Dr. Eduardo Castro (UNAB, CBIB)

Moderator: Renato Borrás (President APECS-Chile, PUC, CAPES)

 

 

Title

Earth, wind and roots: Antarctic teleconnections and effect on terrestrial biota

 

Summary

Antarctica is the coldest, driest, and highest continent on Earth. Despite this, organisms have evolved to cope with these harsh conditions and thrive. The Antarctic terrestrial ecosystem is dominated by microbes, vascular plants, lichens, mosses, and marine mammals and birds. Antarctica has existed in virtual isolation for millions of years, primarily due to the Antarctic circumpolar current and associated winds, and it has been a common assumption that the low rate of colonization of animals and plants from other continents is due to these phenomena. Researchers have recently uncovered successful algal migrations from marine sub Antarctic regions to the Antarctic Peninsula, probably aided by storms and other weather conditions. Furthermore, migrating microbes with genetically encoded traits such as resistance to metals, antibiotics, or the ability to use persistent organic pollutants (POPs) as carbon sources, have been detected on the continent. While we know microbes can be transported by wind and Antarctic microbes exhibit traits often associated with industrial areas, the impact of transport and potential deposition of microbes on the Antarctic terrestrial ecosystem has not been thoroughly assessed. POPs, in turn, are known to occur in the Antarctic atmosphere and to be deposited in water, snow, and soils. The origin of these pollutants is thought to be mostly long-range through atmospheric transport. Yet, the effect of foreign pollutants on Antarctic terrestrial biota is unknown, and neither is their potential future impact in the light of climate change. The goal of the project is to understand the teleconnections between Antarctica and the rest of the world through the lens of pollutant and microbial transport, and to evaluate their reservoirs and possible sources. The questions that will be addressed to achieve this goal are: examine the rates of transport and deposition of organic pollutants and microbes to Antarctica, phylogenetic relationships of microbes collected from air and soil, functional traits of microbes and their genetic determinants, response of airborne and soil microbes to pollutants, global origin of airborne microbes and pollutants, colonization of airborne microbes on land and rhizosphere plants, the potential role of soil and ice/snow cover as a sink-secondary source of microbes and pollutants in Antarctica under a scenario of climate change, and their impact on plant physiology and rhizosphere composition and function. 

Sesión 3. 24 Sept. 2020, 20:30 – 22:00 GMT (17:30 hrs. Chile)

Ver video aquí

Session language: Spanish

Invitada: Dra. Julieta Orlando (UCh, GAB)

Moderan: Dra. Maria Estrella Alcamán (CR2, UdeC) & Dra. Claudia Maturana (IEB).

 

Título

En ciencias no hay camino, se hace camino al andar: El devenir de una microbióloga entre mares, lagos y suelos antárticos

 

Introdución

Los caminos de la ciencia no están libres de serpenteos, bifurcaciones e incluso obstáculos. Conversaremos sobre casualidades, coincidencias, accidentes y un toque de suerte para llegar a insertarse en el desarrollo de la ciencia antártica. El camino de esta microbióloga incluye el estudio de líquenes, suelos, pingüinos, erizos, peces y lagos, entre otros modelos y ambientes antárticos

 

Title

In science there is no path, you make the path as you go: The course of life of a microbiologist among seas, lakes and Antarctic soils

 

Introduction

Paths of science are not free from meandering, bifurcations and even obstacles. We will talk about coincidences, serendipities, and a touch of luck to finally fall in the development of Antarctic science. The path of this microbiologist includes the study of lichens, soils, penguins, urchins, fish and lakes, among other Antarctic models and environments.

 

 

TERTULIAS POLARES

Tertulias polares” busca generar un espacio para estudiantes y jóvenes investigadores que necesitan discutir sus proyectos de una u otra forma y que no han podido debido al contexto global COVID19. Por lo tanto, si tienes datos, metodologías, ideas, resultados, o necesitas practicar alguna presentación con una audiencia científica.

¡ESTE ES TU MOMENTO!

Las charlas/conversatorios son una instancia de relajo científico con los pares, similar a aquellas instancias que tanto nos servían en nuestra vida académica normal.

Si estás interesad@ en participar como oyente o exponente escríbenos al mail apecs.chile@gmail.com o  inscribete en este link: https://forms.gle/2hEmowx7iaNA8wck8

 

 

Jueves 10 de Septiembre 2020, 18:30 hrs. Santiago (GMT-3) “¿Qué nos dicen las alas de un díptero? Descifrando la variación alar en poblaciones antárticas de Parochlus steinenii” Invitada: Carolina Perez (UMag) Modera: Dra. Claudia Maturana (IEB)

 

Jueves 03 de Septiembre 2020 (18:30 hrs. Santiago, 19:30 hrs. Magallanes) “Límites fisiológicos del cangrejo Halicarcinus planatus, una especie exótica encontrada en Antártica” Invitada: Zambra López (UCh, Centro IDEAL & UMag) Moderan: Sebastian Rosenfeld (UCh, IEB & UMag) y Dra. Claudia Maturana (IEB)

 

Jueves 27 de Agosto 2020 (18:30 hrs. Santiago, 19:30 hrs. Magallanes) “Antropología Antártica, una mirada desde Chile continental” Invitado: Alvaro Retamales (GIPART) Moderan: Florencia Vergara (UCh) y Renato Borrás (PUC & CAPES)

 

Jueves 20 de Agosto 2020 (18:30 hrs. Santiago, 19:30 hrs. Magallanes) “Indagando en los microorganismos de suelos Antárticos a través del estudio de sus genomas” Invitada: Lía Ramirez (GAB & LEMi – UCh) Modera: Dra. María Estrella Alcamán (CR2 & UdeC)

 

Jueves 13 de Agosto 2020 (18:30 hrs. Santiago, 19:30 hrs. Magallanes) “Contribuciones recíprocas entre las personas y la naturaleza, una perspectiva Antártica” Invitado: Jaime Ojeda V. (UVIC, IEB & UMag) Modera: Renato Borrás (PUC & CAPES)

 

Jueves 30 de Julio 2020 (18:30 hrs. Santiago, 19:30 hrs. Magallanes) “Genómica del paisaje en el Océano Austral y divulgación científica” Invitado: Dr. Nicolás Segovia (IEB) Modera: Claudia Maturana (UCh & IEB)

 

Jueves 23 de Julio 2020 (18:30 hrs. Santiago, 19:30 hrs. Magallanes) “Ecología de Forrajeo en depredadores Antárticos. El puente entre la conducta y la alimentación” Invitado: Renato Borrás (PUC & CAPES) Modera: Zambra López (UCh, Centro IDEAL & UMag)

SEMINARIO INTERDISCIPLINAR CRÍTICO LATINOAMERICANO

Una Gran oportunidad para la ciencia latinoamericana!! Aún hay tiempo para presentar tu resumenes! Envíalo hasta el 15 de Agosto a: contacto.seminario.cal@gmail.com