Pueblos indígenas, claves en la conservación de la biodiversidad del Bosque Chaqueño

Pueblos indígenas, claves en la conservación de la biodiversidad del Bosque Chaqueño

La región que sufre una de las tasas de deforestación más altas del mundo es hogar de comunidades ancestrales con saberes únicos. La Convención de la ONU que se realiza hasta el 19 de diciembre pone el foco en sus derechos.

El 80 por ciento de la biodiversidad del mundo se encuentra en territorios de pueblos indígenas, como los que habitan en el Bosque Chaqueño, la segunda ecorregión de América después del Amazonas y una de las que presenta la mayores tasas de deforestación a nivel mundial. Para poder preservar esos ambientes y sus valiosos servicios ecosistémicos, diversos sectores resaltan la necesidad de adoptar estrategias de conservación incorporen la perspectiva de Derechos Humanos.

Esta es una de las premisas con las que se trabajó en la 15ª reunión de la Conferencia de las Partes del Convenio sobre la Diversidad Biológica (CDB) de las Naciones Unidas, conocida como COP15, un encuentro que comenzó el 7 diciembre en Montreal y finalizó hoy.

Los resultados de las negociaciones entre representantes de 196 estados fueron plasmados en un documento final que sentará las bases de las estrategias que se implementarán hasta 2030 para intentar frenar la alarmante pérdida de biodiversidad que se registra a nivel global.

Nota completa publicada en TELAM https://www.telam.com.ar/notas/202212/614678-pueblos-indigenas-biodiversidad-bosque-chaqueno-cop15.html

Saving America’s largest dry forest

Saving America’s largest dry forest

Argentina’s Gran Chaco has one of the highest deforestation rates in the continent. Now, local and international networks are working to prevent an irreparable environmental loss.

After the Amazon, the Gran Chaco is the largest and most biodiverse ecoregion in the Americas. It is also the most threatened due to the conversion of natural environments into productive fields for the cultivation of commodities for export, such as soy and beef.

More than half of this enormous ecoregion, which covers more than one million square kilometres, is located in Argentina, where a law on native forests was passed 15 years ago, establishing a regulation that has been unevenly implemented.

Deforestation did not stop even during the COVID-19 pandemic, and NGOs such as Greenpeace have denounced the expansion of the agro-livestock frontier in the region.

According to a report by Argentina’s Ministry of Environment, a total of 6.5 million hectares of native forests were lost in the country between 1998 and 2018. Nearly 90 percent of this area is located in the Chaco region, which includes the provinces of Santiago del Estero, Salta, Chaco and Formosa.

The Gran Chaco continues to be a neglected and impoverished region, but its natural wealth is gaining relevance on local and international agendas due to the significance of its environmental services.

Several projects are now bringing together public and private actors interested in halting the devastation of these ecosystems and improving the living conditions of its inhabitants, including indigenous communities. 

A LOCAL NETWORK FOR SUSTAINABLE DEVELOPMENT

Twenty years ago, representatives of various institutions concerned about rural development in the region created the Chaco Argentina Agroforestry Network (Red Agroforestal Chaco Argentina – REDAF). Currently, consists of 15 organisations that work in the region, as well as people who, based on their experience in technical, political and academic fields, contribute to the cause.

Together, they help foster a better quality of life for rural and indigenous communities in harmony with the region’s natural resources. They also created a Land, Natural Resources and Environment Observatory, which seeks to monitor and spotlight instances of conflict over land tenure, deforestation and other environmental problems.

A recent paper published by members of REDAF warns that the major illegal deforestation campaign in the dry Chaco region is closely associated with the power of landowner-producers and provincial government agencies in charge of enforcing the Forestry Law. The latter, the paper indicates, authorise re-categorisations that enable the advance into areas that were previously prohibited.

The authors of the study highlight the need to develop policies that integrate economic, agricultural and environmental sectors in order to halt deforestation on the agricultural frontiers. 

“Land tenure reform can facilitate forest protection, while incentives for land-use diversification and criminal punishment of illegal deforestation are key to changing producer behaviour towards more balanced forms of production and conservation,” the study reads.

HOW TO EMPOWER COMMUNITIES

“More than half of the remaining native forests in the dry Chaco region are located in indigenous territories,” said Micaela Camino, a young biologist who left Argentina’s capital Buenos Aires and settled in the Chaco region in order to develop scientific projects with a strong social agenda. 

“It is necessary to create the conditions so that the communities can stay there and lead dignified lives because they are fundamental for the conservation of the environment.” 

This is why she founded Proyecto Quimilero, a campaign to spread awareness of the importance of conserving an endemic species of peccary (Catagonus wagneri) that lives in the Chaco and is threatened by the loss of its habitat. This year, her work received one of the Whitley Awards, a distinction given by a UK conservation foundation to promote the protection of endangered environments around the world. 

With the funding, Camino plans to strengthen her work with local communities, empower them to continue to inhabit their lands and stop large corporations from eliminating the forests that are home to this peccary and other threatened species.

“The wisdom of indigenous peoples is key to knowing and caring for the fauna and environment of the Chaco,” the researcher told FairPlanet. 

DEFORESTATION-FREE COMMODITIES

To curb deforestation in the Chaco, the involvement of both governments and corporations will be crucial. New international regulations that will require traceability of products entering markets could force companies to adapt their production processes and adopt environmentally responsible practices.

These actions would not only serve to halt the advance of productive fields over native forests, but also help restore damaged environments.  

To coordinate these processes by replicating models already applied in other parts of the world, the Tropical Forest Alliance (TFA) – a multi-stakeholder partnership platform initiated to support the implementation of private-sector commitments to remove deforestation from supply chains – recently created a programme specifically tailored to the Gran Chaco, with hubs in Argentina and Paraguay.

“The goal is to achieve zero deforestation in the value chains of commodities produced in the region, mainly soy and beef, from a productive and conservationist perspective,” Daniel Kazimierski, Gran Chaco Special Advisor and Argentina Coordinator at TFA, told FairPlanet. 

“THE WISDOM OF INDIGENOUS PEOPLES IS KEY TO KNOWING AND CARING FOR THE FAUNA AND ENVIRONMENT OF THE CHACO.”

The proposal, which is funded by the Gordon and Betty Moore Foundation and supported by countries such as the UK, the Netherlands and Germany, consists of promoting collective actions that engage the productive sector and local governments.

The plan, which began in 2021 and will run for three years, aims to position the Chaco in different global forums to make its need for protection visible, as well as to create public-private coalitions to fuse production with conservation and obtain funding for these actions, granting incentives to producers who adapt their practices or restore environments. 

The attention being drawn to the Chaco at the global level could be a positive step towards halting the tragic disappearance of its environments, wildlife and communities.

It will now be necessary to closely follow-up on the fulfillment of the commitments made. 

Published in Fair Planet https://www.fairplanet.org/story/saving-americas-largest-dry-forest/

98 years on, Napalpi Indigenous Massacre trial opens in Argentina

98 years on, Napalpi Indigenous Massacre trial opens in Argentina

The killing of hundreds of people at Napalpí in Argentina’s Chaco province in 1924 is now being prosecuted as a crime against humanity. This is an unprecedented lawsuit in Latin America that could mark a milestone in the acknowledgment of and compensation for the indigenous genocide.

In an unprecedented trial for Latin America, Argentina is trying as a crime against humanity the Napalpí Massacre, an attack committed in 1924 against indigenous people of the Qom and Moqoit ethnic groups in the current territory of the province of Chaco, which resulted in the death of between 300 and 500 people.

At that time, the government – supported by the police and landowners in the area – shot down from a plane a community that was subjected to a regime of semi-slavery and was demanding better working conditions.

The consequences of this massacre were ignored by both the authorities and official media at the time, and survivors were persecuted and silenced for nearly a hundred years. The trial will constitute a new milestone in history and, as many believe, help pave the way to recognition and reparation for the the atrocities committed against the indigenous communities of Argentina and the Americas.

Fundamental in effecting this momentous opportunity for justice was the contribution of a diverse group of researchers, indigenous community representatives and federal prosecutors who managed to gather valuable testimonies and pen academic works referring to this horrific event. It is a “trial for truth” that is intended to become a stage for reflection and learning for the whole of society, which is why all the hearings are being broadcast live on streaming platforms, making them accessible to the entire country and the world.

TRUTH TRIALS: FROM DICTATORSHIP TO INDIGENOUS GENOCIDE

Argentina’s experience with truth trials dates back to the late 1990s, when lawsuits were filed in different cities to determine the state’s responsibility for crimes committed during the military dictatorship that governed the country between 1976 and 1983. In compliance with the recommendations of the Inter-American Commission on Human Rights, the state began to respond to the truth claims of the victims of state terrorism. 

In the Napalpí case, the truth trial was promoted by the Public Prosecutor’s Office, considering that it is the appropriate mechanism to judge this case since the perpetrators are no longer alive. Therefore, the ultimate objective will be to fulfil the victims’ rights to the truth.

The hearings began on 19 April and will continue through 19 May, moving between different public auditoriums in Chaco and Buenos Aires. More than 50 witnesses have been called to testify to make diverse contributions to the case, including a survivor of the massacre, Rosa Grillo, who is over 110 years old and witnessed the attack as a child. 

The case also includes reports made by the Argentine Forensic Anthropology Team (EAAF), a pioneering body in the application of archaeological techniques to cases of human rights violations. The excavations they carried out in Napalpí in 2019 confirmed the presence of human remains in places that coincide with survivors’ descriptions. 

The contribution of researchers who tackled the indigenous question in Argentina was also fundamental to the cause. Academic studies carried out by historians and different social scientists over the last decades indicate that an indigenous genocide had been perpetrated in Chaco; one which some of them contend still persists today through, for instance, the erasure of indigenous languages

THE SIGNIFICANCE OF ORAL TESTIMONIES 

To put together the puzzle of what happened in Napalpí on 19 July, 1924, it was essential to gather testimonies from indigenous communities. Survivors recounted that on that day a plane flew over an area where about a thousand women, children, men and elderly people were living and began to drop food and sweets. When the indigenous people came out to pick them up, claimed the survivors, the plane began to shoot at the crowd – killing most of them. Those who survived the torrent of bullets hid in the bushes until they managed to escape. Many of the survivors never spoke again of the macabre atrocity they had experienced.

One of the main figures in this reconstruction process was Juan Chico, a Qom historian who was the link between all the various actors who managed to make the Napalpí Massacre visible. Chico died in June 2021 due to complications from COVID-19, but his legacy reached the trial through his colleagues.

“The function that orality has within our community is fundamental and it is what we will present in the trial as a testimony of what our communities lived through,” Raquel Esquivel, a member of the Qom community who accompanied Juan during fieldwork, told FairPlanet.

Esquivel is presenting the results of interviews she had conducted in her community starting in 2007 when she was a political science student and began to ask herself questions about the past. “My maternal grandmother is Qom and speaks the language, but my mother does not. When I asked her why they hadn’t taught it to her, they told me ‘it was wrong’ and that many people had died because of it,” she recalled. “I didn’t understand much, but when I grew up and studied I found a short text about what had happened in Napalpí and started to investigate. This was a topic that was not talked about in our community.” 

Since then, Raquel has been able to conduct interviews with many of the survivors of the massacre and their families. “More than an investigation, for me it was a search for my identity. I went to a school in a city, outside the community. My parents took us out of the countryside to [integrate us with] society, but my skin and my features never allowed me to deny my origin,” she said.

“From the age of 6 I had to face discrimination and although some things have changed, society is still unfair to us. That is why I am confident that this process will help us to begin to heal wounds and overcome the stigmatisation that exists towards indigenous people.”

JUSTICE FOR COLLECTIVE MEMORY

Zunilda Niremperger is the judge presiding over the trial that is trying to reconstruct the historic event in Chaco. “The intervention of the justice system in cases such as this one is very relevant for the revindication of collective memory. Mainly because it legitimises the voice of the communities, who are often excluded, like so many other vulnerable groups,” Niremperger told FairPlanet. 

The trial represents a procedural challenge, however, as it attempts to reconstruct and probe events that occurred more than 90 years ago; furthermore, there are no living defendants. “As a national judge it is a privilege to be able to lead this process which, if what the prosecution and the plaintiffs claim is proven, represents a crime against humanity committed towards a group that presents an intersectionality of vulnerability,” judge Niremperger said.

“Indigenous communities have not only been historically neglected, but have also been victims of violations of all their rights through massacres, policies of extermination and abandonment, which have placed them in socio-economic situations of maximum vulnerability that should be taken into account by all those who work in the state,” she added. “Our goal must be to help balance all these existing asymmetries.” 

Published in Fair Planet https://www.fairplanet.org/story/98-years-on-indigenous-massacre-trial-opens-in-argentina/

Nuevas alternativas para tratar el Chagas

Nuevas alternativas para tratar el Chagas

En un laboratorio del Chaco, científicos usan micro y nanotecnología para optimizar la eficacia del benznidazol —la principal droga para tratar la enfermedad transmitida por las vinchucas— y diseñar preparaciones farmacéuticas aptas para ser administradas en niños.

La Organización Mundial de la Salud (OMS) califica como desatendidas u olvidadas a un grupo de enfermedades “que reciben poca atención y se ven postergadas en las prioridades de la salud pública porque los afectados carecen de influencia política”. Entre ellas se encuentra la tripanosomiasis americana o Chagas, una afección causada por el parásito Trypanosoma cruzi que afecta a más de 6 millones de personas y para la cual no existen vacunas.

América Latina es la región con la mayor cantidad de casos y se estima que sólo en Argentina hay más de un millón y medio de habitantes que viven con esta enfermedad, que se transmite principalmente por la picadura de vinchucas. Para aportar a su abordaje y mejorar los pocos tratamientos disponibles, un grupo de investigadores del CONICET en la Universidad Nacional del Chaco Austral (UNCAUS) y en el Instituto de Química Rosario (IQUIR, CONICET – UNR), está desarrollando métodos para mejorar las características del benznidazol, el principal fármaco indicado en el tratamiento de los pacientes.

El proceso, que podría ser fácilmente escalado a nivel industrial a bajo costo, consiste en encapsular el principio activo en nano y micropartículas poliméricas, a fin de que pueda ser absorbido de manera más eficaz en el organismo. En un reciente trabajo que fue publicado en la revista Colloids and Surfaces B: Biointerfaces, los investigadores reportaron un aumento significativo de la eficiencia de disolución mediante la utilización de estas técnicas en ensayos in vitro.

Junto con el nifurtimox, el benznidazol es uno de los únicos fármacos disponibles para tratar la enfermedad de Chagas, pero presenta varias limitaciones. Una de ellas es su baja solubilidad en agua, lo que dificulta su absorción a nivel gastrointestinal. Además, está disponible únicamente en comprimidos, una presentación que no es adecuada para la administración en pacientes pediátricos, que representan un alto porcentaje de los índices debido a que la enfermedad puede ser transmitida por vía congénita.

“Apuntamos a desarrollar una formulación farmacéutica en polvo, que contenga benznidazol para suspensión extemporánea de administración oral. Esto sería una gran herramienta para el tratamiento de neonatos y niños pequeños, que tienen dificultad en la deglución”, explica la investigadora asistente del CONICET en la UNCAUS, Katia Seremeta. Para medicar a un niño con Chagas, el procedimiento que generalmente se sigue en los centros de salud consiste en fraccionar o triturar los comprimidos y dispersar las partes en agua, pero esta metodología -explica la doctora en Farmacia y Bioquímica-, puede llevar a errores de dosificación.

Para reemplazar esta práctica, los investigadores están encapsulando el principio activo en nanopartículas, aplicando la técnica de nanoprecipitación o método de desplazamiento del solvente. “Generamos gotas muy pequeñas de solvente orgánico que contienen tanto al polímero como al fármaco, y que luego se someten a procesos de evaporación, congelación y liofilización, permitiendo la obtención de un polvo seco”, explica.

Para las micropartículas, en tanto, utilizan el método de secado por pulverización o spray-drying. “Esta técnica consiste en atomizar una suspensión acuosa o hidroalcohólica del fármaco y el polímero en una cámara donde circula una corriente de aire caliente que permite el secado de las gotas y la posterior recolección de las partículas”, detalla la investigadora y destaca que una de las principales ventajas de este método es que “consiste en una sola etapa, es fácilmente escalable y de bajo costo”.

Durante las pruebas in vitro que realizaron y que están descriptas en el trabajo publicado recientemente, se comprobó que aumentó significativamente la eficiencia de disolución del fármaco encapsulado tanto en las nanopartículas obtenidas por nanoprecipitación como en las micropartículas obtenidas por spray-drying. Actualmente, se están realizando ensayos en animales de laboratorio, a través de colaboraciones con otros grupos de investigación, para determinar la biodisponibilidad y la actividad tripanocida.

Una revolución farmacéutica

La micro y la nanotecnología revolucionaron la industria farmacéutica y actualmente ya se comercializan diversos productos desarrollados mediante estas herramientas. Durante sus estudios de doctorado en el Instituto de Nanobiotecnología (NANOBIOTEC, CONICET – UBA), Katia Seremeta trabajó en la micro y nanoencapsulación de antirretrovirales para el tratamiento del VIH y, con esa experiencia, decidió volver a su provincia natal para hacer su aporte a una problemática local.

“Nuestro objetivo como investigadores es generar conocimiento para optimizar la farmacoterapia de una enfermedad que afecta tanto al Chaco como a otras provincias del país. Buscamos que nuestro trabajo pueda generar un impacto positivo en la salud pública”, finaliza.

Publicado en CONICET