Professional Biographies ACRAA Management Team

Diêgo Figueiredo de Siqueira Simplício (Brazilian)


Diêgo Figueiredo is Brazilian, graduated in Law from the University of Triângulo Mineiro (UNITRI, 2012), and registered with the Brazilian Lawyers Order under number 148.062 MG (2013). Diêgo trained for four years at three different institutions: at the Public Ministry of Claudio-MG (where he worked in the civil area); at the UNIFENAS Legal Assistance Center, in the city of Poços de Caldas-MG (also working in the civil area); and at the Public Defender of the State of Minas Gerais, in the city of Uberlândia-MG (where he worked in the area of ​​criminal executions). During this same period he participated in a complementary course on Introduction to Business Management.

As a lawyer, he has been working for nine years emphasizing further studies in the field of Environmental Law. Diego is also a founding member of ACRAA.

Katiane Araújo Lourido. Natural de Santarém – Pará.

Degree in Full Licentiate in Biological Sciences from the Federal University of Western Pará/UFOPA (2016). Master’s in Environmental Sciences, in the area of concentration of bioprospecting of natural products – UFOPA (aguardando). Experience in extraction and bioactivity of essential oils. Teaching Science and Biology and environmental education. Currently working in the field of natural cosmetology.

Katiane is also the lead instructor and manager of  ACRAA’s “ACRAA in the Schools” environmental education program. Katiane is also a founding member of ACRAA.

B. Thor Smestad (Canadian) B.S.F.[1], M.Sc.[2], P. Ag.[3]


Thor Smestad is a Canadian reforestation and ecosystem-restoration specialist. He began this career in 1981 as a tree planter in the mountains of British Columbia (BC), Canada, and then later, after completing a degree in forest resources management (1994), continued to work in BC as a silvicultural forester. This work involved managing projects related to all aspects of reforestation and forest management on the vast expanses of public lands in British Columbia.

In 1997 he returned to university to complete a Master of Science degree, specializing in soils. His master’s study was located in western Kenya, where he examined the soil fertility changes associated with short-duration agroforestry fallows (Smestad et al., 2002).[4]

Since completing his masters in 2002, Thor has worked throughout western Canada in the field of ecosystem restoration and soil erosion control. For a short period (2012 to 2016) he also operated his own native plant nursery and ecosystem restoration company.[5] Many of the projects completed during this period were in shoreline and riverbank restoration, and he is now known as a specialist in this area in BC. One of the most exciting projects during this period was the ecological restoration of a small peninsula near Nelson, BC. Here, for a three-day period in each of five consecutive years (2011 to 2015), Thor co-led an annual ecological restoration field-school for the local College’s Integrated Environmental Planning Program.[6]

At present he works seasonally (April-Nov.) as a senior ecosystem restoration specialist for an environmental consulting company in western Canada.[7] He spends his winters in the Amazon region of Brazil where he is a founding member of ACRAA. 

[1] Bachelor of Science in Forestry. University of British Columbia (Canada). 1994
[2] Master of Science. University of Saskatchewan (Canada), 2002.
[3] Professional Agrologist. BC Institute of Agrologists (British Columbia, Canada).
[4] For published study results see:
[5] Treebear Native Plants. See
[6] Selkirk College, Castlegar, BC.
[7] Lotic Environmental Services, Cranbrook, BC, Canada. See

Katherin Daniela León Pinto

My name is Katherin Daniela León Pinto. I was born in Lara-Barquisimeto, Venezuela. I am 27 years old.

From a very young age I have felt a strong connection with plants. When I was 5 years old my family traveled to Valencia-Carabobo where my grandparents lived, they work mono-cultivation with citrus, milky and bananas. One day I asked my grandfather to teach me to work the land; that was my first contact, which led me to discover that this is my passion. Since then, a large part of my life has been dedicated to plants.

My family was a bit nomadic so we traveled a lot. We were in various states of Venezuela; we lived in cities, neighborhoods and towns. In each place I met people who shared their knowledge of plants with me, and this is something that I really liked. Every time I had the opportunity I read books about plants, and learned a little about natural medicine among other things.

Like the plants, I felt a great connection with the animals in each place where we arrived, and I rescued the animals that I found on the street and cured them. Most of them were cured with plants, so I practiced my home remedies. Those are my passions, plants and animals.

Of course life goes by and the world goes around and in those turns I lived and learned many things, and I am still living and learning. Now I live in Alter do Chão. Since I arrived here my work with plants has deepened, living two years in Caminho das Pedras, a small community near Alter do Chão that works with agroforestry. There I learned to work with multi-cultivation, agroforestry, and the biodiversity in the humid tropical zone; and with the soil here, which is sandy. This has been a great challenge with great learning.

I have been part of ACRRA for three years now; that is where I work, practicing and sharing everything I have learned. I am still seeking knowledge about plants, including at times taking courses on the internet about agroforestry. Daki is also a founding member of ACRAA.

Waldeir dos Santos Pereira

Brazilian, Paraense, Born in Santarém, Bachelor of Forestry Engineering (2020) from the Federal University of Western Pará – UFOPA, specializing in Occupational Safety Engineering (2021–2022) from Faculdade Única – Grupo Prominas/MG.

Waldeir has professional experience in Forestry Engineering with emphasis on Forest Management, Forest Inventory, Environmental Auditing, Silviculture (Installation of Forest Nurseries), and Environmental Projects with Indigenous Peoples in the Amazon. Member of the Interaction Biosphere Research Group – Atmosphere and Micrometerology in Amazonia – IBAMA/UFOPA.

He carried out graduation course conclusion work with the theme: Estimates of the Environmental and Socioeconomic Impacts of the Last 3 Major Drought Events in the Amazon (2005, 2010 and 2015).

Currently, he works as an Environmental Consultant (Legal Entity (PJ) and Individual (PF)), in addition to being the 1st Administrative Secretary of Public Security of Grande Prainha – CONSEG/PRAINHA in the city of Santarém – PA (2021-2023). Waldeir is also a founding member of ACRAA.

Paulo Ricardo Castro de Alencar

Brazilian, born in the state of Pará and born on June 17, 1986 in the city of Belém.

He began his academic career in 2006, studying Technician in Vegetable Production at the School of Work and Production of the State of Pará (ETEPA).

In 2008 – 2009, he began a technical course in agriculture at the Federal Agrotechnical School of Castanhal.

In 2010 – 2011, he began a technical course in Forestry at the Federal Institute of Pará, Campos Castanhal, where he also began his specializations in Community Forestry Management by Insistindo Internacional do Brasil (IIEB) and Reduced Impact Forestry Management by the Tropical Forest Institute (IFT).

From 2013 to 2015, he began his professional career as a Rural Extensionist at the company EMATER, where he carried out participatory rural diagnosis work in Pará, serving 2,000 families of farmers, fishermen and riverside dwellers benefited by INCRA within the Mãe Grande de Curuça Marine Extractive Reserve located in the northeast of Pará.

In 2015 to 2016, in the period of 12 months, he was a volunteer at the Chico Mendes Institute for Biodiversity Conservation (ICMBIO), where he worked developing socio-environmental and cultural education activities within the Mãe Grande Curuça Marine Extractive Reserve in the state of Pará

From 2018 to 2019, in partnership with Biopalma Reflorestamento S/A, it helped to develop reforestation activities and solid waste composting within family farming in the city of Acará in the state of Pará.

In 2022 and 2023, he worked in partnership with companies such as WGAbio and UNYLEYA, where he developed rural and environmental technical assistance work in the villages of the Middle Xingu affected by the historic Belo Monte dam, where he also participated in the plan to protect the indigenous lands of the Middle Xingu where worked as an operational technician. 

Today in the position of Environmental Consultant and Forestry Technician, he has been helping ACRAA to develop reforestation activities, introduction of agroforestry systems and also environmental education in schools and villages in the Baixo Tapajós region.

Thais Thayane da Silva Beltrão de Farias

Brazilian, born in Recife-PE, on 29.09.1993.

Thais is a technician in Business Administration, graduated from the Special Professional Center (2011). Also a makeup Artist – Embeleze Institute (2014), and eyebrow Designer – Center Take Free courses (2018).

Worked as an administrative and commercial assistant at the Objective Engenharia de Eventos in 2012. Commercial Consultant at the Academia Hi from 2013 to 2014. Receptionist and salesperson at the Academia Santé Club (2014 to 2015).

From 2015 to 2017, she worked in the Amazon region as a cook on tourist boats, leading the fusion of regional food with northeastern food.

Also in 2015, she worked as a bartender and cook at the Mãe Natureza Bar and Restaurant (Alter do Chão) and from 2016 to 2017 at the Alter do Chão Gastronomic Space Restaurant.

In 2019, she returned to work in the Administrative and Product Shipping sector at Ekilibre Amazônia.

Thais currently works as an artisan, cook, and secretary and project coordinator for ACRAA. She is also a founding member of ACRAA.



Rua Everaldo Martins, s/n., Bairro Carauari, Alter do Chão, Santarém-PA, CEP 68109-000.

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