Telma Ortegal

Telma Ortegal State Park is a small but ecologically significant cerrado reserve located in the municipality of Abadia de Goiás, just southwest of Goiânia. Covering roughly 146 hectares, it was established in 2002 and named in memory of environmentalist Telma Ortegal, who championed the protection of natural areas in the state capital's metropolitan region. Despite its modest size, the park conserves a representative sample of cerrado sensu stricto and gallery forest threatened by rapid urban expansion around Goiânia. The park functions as a green lung for neighboring communities, a field site for environmental education, and a refuge for small and medium-sized cerrado wildlife in a heavily urbanized landscape.

Despite its proximity to urban Goiânia, the park sustains a surprising diversity of cerrado fauna, including crab-eating foxes, six-banded armadillos, southern tamanduas, tufted capuchins, and black-tufted marmosets. Reports also cite pampas deer and occasional maned wolves moving through the area from larger protected fragments. Avifauna includes red-legged seriemas, toco toucans, burrowing owls, aracaris, and a wide range of cerrado songbirds such as tanagers and flycatchers. Reptiles recorded in the park include boa constrictors, tegus, and several lizard species, while amphibians breed in small seasonal pools and stream pools during the wet season. The park is important for maintaining genetic connectivity between cerrado fragments in the Goiânia metropolitan region.

The park's vegetation is dominated by cerrado sensu stricto and cerradão on well-drained soils, with gallery forest along seasonal streams and small wet-prairie patches (veredas) associated with springs. Characteristic trees include pequi, lobeira, sucupira-preta, jatobá-do-cerrado, ipê-amarelo, and barbatimão, while gallery forests host embaúba, copaíba, and wild figs. The herbaceous layer features native grasses, Vellozia species on shallow soils, and fire-adapted forbs that regrow after seasonal burns. Buriti palms line the veredas and mark areas of permanent soil moisture. The park's small size magnifies the importance of maintaining its interior habitats and minimizing edge effects from surrounding urban and agricultural land uses.

Geologically, the park sits on the Central Brazilian Plateau within the Brasília Fold Belt, underlain by Precambrian metamorphic rocks including schists, phyllites, and quartzites of the Araxá Group. Surface geology is dominated by deep red-yellow latosols and cambisols developed from long-term weathering, producing acidic and aluminum-rich soils typical of cerrado environments. Gentle undulating terrain at elevations around 800 to 900 meters is dissected by small streams feeding tributaries of the Rio Meia Ponte. Occasional outcrops of quartzite and lateritic concretions (canga) punctuate the landscape. Sandy alluvial deposits and hydromorphic soils along streams support gallery forests and veredas, while thicker weathered soils on interfluves sustain the broader cerrado vegetation.

The park experiences a tropical savanna climate (Köppen Aw) with two well-defined seasons. Summer months from October through April are warm and humid, bringing 80 to 90 percent of the annual rainfall of about 1,500 millimeters in intense afternoon thunderstorms. Winters from May through September are dry, sunny, and cooler, with relative humidity often dropping below 30 percent and winds that heighten fire risk. Temperatures average 24 to 28 degrees Celsius year-round, but winter nights can dip below 12 degrees Celsius under clear skies. The climate drives the strong seasonal rhythms of cerrado vegetation, dictating leaf fall, flowering, and fire-adapted regrowth patterns throughout the park.

The lands around Abadia de Goiás were historically inhabited by Indigenous groups including the Goyá and Akroá before being incorporated into colonial Brazil. European settlement intensified after the founding of Goiânia in 1933 as the new state capital. Abadia de Goiás itself emerged as a small rural district, becoming more widely known in 1987 due to a radiological accident in neighboring Goiânia, after which contaminated materials were deposited in a containment site near what is now the park area. The 1996 establishment of Abadia de Goiás as a separate municipality and growing awareness of environmental issues in the metropolitan region helped spur conservation initiatives in the area, culminating in the creation of the park a few years later.

Telma Ortegal State Park was created by Goiás state decree in 2002 as part of efforts to protect remaining natural areas within the rapidly urbanizing Goiânia metropolitan region. It is named in honor of Telma Ortegal, a state environmental official and advocate for cerrado conservation. Management is under SEMAD, and the park is intended primarily for conservation, scientific research, and environmental education rather than mass tourism. Early management priorities focused on land regularization, fencing against illegal entry, and removal of cattle. Over time, partnerships with local schools, universities, and NGOs have expanded environmental education activities, making the park a key site for connecting Goiânia's urban population with cerrado ecosystems.

The park offers short interpretive trails through cerrado and gallery forest that are especially popular with school groups and local residents interested in nature walks. Key features include a small waterfall along an internal stream, seasonal wildflowers, and bird-rich forest edges. Visitors can observe iconic cerrado species such as pequi trees, flowering ipês, and active termite mounds, along with opportunities to see marmosets and colorful birds at close range. Guided activities and educational workshops are periodically organized by SEMAD and local environmental groups. The park is not a destination for long-distance hiking but instead functions as an accessible introduction to cerrado ecology for residents of the Goiânia metropolitan area.

Telma Ortegal State Park is located in Abadia de Goiás, about 25 kilometers from downtown Goiânia, and is accessible via GO-060 and secondary roads. Because of its small size and educational focus, facilities are modest, with a reception area, basic restrooms, and trail signage. Visitation is typically by scheduled group programs or individual visits coordinated with SEMAD to avoid overwhelming the small reserve. Goiânia provides the nearest full-range accommodations, restaurants, and transport services. Visitors should bring water, sun protection, and insect repellent, and follow instructions from park staff regarding trail access and behavior. The park is a valuable stop for nature enthusiasts staying in Goiânia who wish to experience cerrado without traveling long distances.

As a small protected area in a highly urbanized setting, the park faces significant conservation challenges, including edge effects, invasive species, illegal garbage dumping, and pressure from adjacent development. Management focuses on maintaining habitat quality, controlling invasive African grasses, and preventing wildfires that could devastate such a limited area. Environmental education is a cornerstone of the park's strategy, with outreach to schools, universities, and community groups aimed at building support for conservation across the Goiânia metropolitan region. Research partnerships monitor bird populations, small mammal communities, and vegetation responses to fire and land use. The park's existence also contributes to broader goals of maintaining cerrado connectivity and ecosystem services near a major urban center.