Science and Outreach

We oppose the La Puntilla development in Algarrobo

We oppose the La Puntilla development in Algarrobo

Puya has submitted a formal conservation report opposing a proposed 344-apartment residential development at La Puntilla, on the Algarrobo headland. Here is why we think it should not go ahead.

What we found on the ground

As part of our ongoing surveyimg of the Algarrobo to Concepcion, we have been combining visual surveys, interviews with local fishermen, cochayuyu harvesters, and surfers, and eDNA water sampling. We find the area around Algarrobo to be highly significant for chungungos across the entire surveyed range. We recorded repeated sightings of individuals actively using the coastal zone immediately adjacent to the proposed development, for foraging, resting, and movement. Southward from Las Cruces to Concepcion, we found very little.

This matters beyond Algarrobo itself. With so few chungungo presences detected to the south, Algarrobo is not just a local population but it is likely a stepping stone on which any future recovery of the species along this coast would depend.

What the developer got wrong

The developer's own fauna assessment records a single chungungo sighting. One. This is wholly inconsistent with the monitoring record that has existed for this site since 2016, and with what our team has observed in the field. Even more seriously, the assessment classifies the chungungo as Vulnerable, a legal status that was superseded in 2021, when Chile's 17th RCE Process formally upgraded the species to En Peligro (Endangered). This is not a minor administrative error. It misrepresents the species' legal protection status and almost certainly shaped how seriously the impact was taken. It means the entire assessment was built on the wrong foundation.

Why the development is a problem

The chungungo is not primarily a marine animal. Studies show it spends up to 81% of its time on land, resting and denning in rock crevices and coastal caves. The proposed development sits directly on the coastal plateau above exactly this kind of habitat. Even if the rocks themselves are not bulldozed, the constant presence of residents, dogs, and activity along the coastal margin would effectively destroy the conditions that make these dens usable.

Dogs are a particular concern. Research shows that free ranging, owned dogs regularly range 0.5 to almost 2 km from home, with some reaching over 4 km. Dog attacks are a documented primary cause of chungungo mortality in Chile. A development of 344 apartments, with the dog population that comes with it, projects a lethal threat well beyond its immediate footprint.

What we are asking for

We are not saying development can never happen in Algarrobo. We are saying this development, in this form, cannot be approved without a complete, independent, species-specific environmental impact assessment that treats the chungungo as a target species and gets its legal status right.

The precautionary principle exists for exactly this kind of situation: a data-poor site, an endangered species, and an impact assessment that fundamentally failed to grapple with either.