These baby Iguana hatchlings pictured at Hope Zoo in Kingston are carefully caught in the wild or hatched at the Iguana Head Start HQ at the Zoo. They are meticulously cared for two to three years before being released into the wild as adult Iguana.


Declared extinct in 1948, the Jamaican Iguana was rediscovered half a century later in the Hellshire Hills. Today, UNDP/GEF SGP’s strategic support to recovery of this endemic species has contributed to a doubling of Jamaica iguanas released into their natural habitat


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In 1990, Edwin Duffus, pig hunter, walked into Jamaica’s Hope Zoo in Kingston and placed a large, injured lizard in the hands of zoo keepers. It was a curiosity, quite unlike anything he had seen before. Duffus had been hunting hogs in the Hellshire Hills, when his dog ran over with the live specimen in its mouth. He took one look at it and decided it was time to consult the experts.

The lizard turned out to be a Jamaican Iguana, (scientific name, Cyclura colliei), an endemic species long thought to be extinct – since 1948.

The discovery sent ripples throughout local and international zoology circles.
Search Party

The lizard died 24 hours later, severely injured by the dog, one of several predators that had all but wiped out local populations of the Jamaican Iguana, and that threaten its existence to this day.

Hope Zoo and a team of local zoologists lost no time. They urgently assembled a search party set on locating any surviving iguana in the Hellshire Hills - a dry forest habitat that needs the services of the iguana in order to thrive.

A race against time

The race against time was not just about saving fledgling populations from extinction; not just about preserving the unique service iguanas perform to keep Jamaica's dry forests thriving; but ultimately about ensuring that the dry forests could continue to sustain the water aquifers that provide water supplies to much of Jamaica's south coast.

Hellshire Hills' biodiversity needs the Jamaican Iguana; we need the dry forests for water

The Jamaican Iguana – a ground dwelling, short stocky reptile with brown, grey and aquamarine colouration and a distinct cowl of loose skin at its neckline - is one of 27 reptile species endemic to Jamaica. It had long been a missing link in an incredible biodiversity chain that sustains Jamaica’s dry forests. “They eat fruits and vegetables, and when they poop, the seeds germinate and grow faster, so they add to the biodiversity of the forest. It is for this reason the iguanas were considered Jamaica's first farmers”, Loy Taylor Bloomfield of the Hope Zoo Preservation Foundation explains.

The cultivator


Hope Zoo General Curator, Milton Rieback is more colourful in his description: “He is your cultivator, gardener of your dry forest habitat”. In a local experiment spearheaded by a graduate student, seeds which pass through the gut of an Iguana thrived far better than those sown by hand, the Zoo Curator explains about the iguana's superior cultivation role.

Dry forests - key to water supply on Jamaica’s south coast

Jamaica's Forestry department confirms that dry forests like Hellshire Hills cover 4% of the island, and are a key component of Jamaica's forest ecology and economy, by helping to maintain the limestone aquifers which are an important source of ground water in the south coast. But these forests are increasingly under pressure from coal farming, developments and mining, which in turn poses a potential threat to the fledgling iguana population.

GEF SGP targets diagnostics and diets of the Jamaican Iguana

Understanding the importance of the Jamaican Iguana’s recovery to the survival of Jamaica’s dry forests and the long term protection of Jamaica's south coast water supplies, the United Nation Development Programme (UNDP)-implemented Global Environment Facility (GEF) Small Grants Programme got involved in 2012 in the then-16-year-old globally-heralded conservation effort known as the Iguana Head Start initiative. SGP’s 2012 intervention was also consistent with Aichi Target number 12 – aimed at restoring endangered species to their natural habitats. By then the International Union for Conservation of Nature (IUCN) had placed the Jamaican Iguana on its Red List of Threatened Species where it remains today listed as critically endangered.

GEF SGP National Coordinator in Jamaica, Hyacinth Douglas said the programme focused on a critical gap in the Iguana Head Start programme – boosting the diagnostic and medical care capacities of Jamaica’s Hope Zoo Preservation Foundation to ensure that healthier, stronger and more resilient adults could be released into the wild capable of surviving its dangers. “Our grant provided the enclosures as well as the diagnostic centre which is like a hospital or medical centre for the animals, where the iguanas are tested. It was imported as a prefabricated kit and installed at the Hope Zoo.”

The iguana's dry forest gem

Hellshire Hills - a tropical dry forest region in southern Jamaica, described as “one of the last substantial areas of primary, undisturbed dry forest in the Caribbean” by the late University of the West Indies zoologist, Peter Vogel - remains the current and only known habitat of the fledgling Jamaican Iguana population. Studded with cacti, shrubs and low deciduous trees adapted to low rainfall, Hellshire Hills juts above the densely populated community of Portmore, just west of the capital city, Kingston, covering more than 100 kilometres.

It is here that the Jamaican Iguana once thrived, after they were wiped out on another known habitat, the offshore isles called Goat Island and Little Goat Island. But over time, iguana numbers had been decimated in these hills by hunters, predators such as mongoose, feral cats and dogs, and habitat destruction.  The non native mongoose, sent to Jamaica in 1872 from India to eradicate rodents has been particularly devastating to the iguana population and other endemic species.

Dry forests - key to water supply on Jamaica's south coast

Jamaica's Forestry department confirms that dry forests like Hellshire Hills cover 4% of the island, and are a key component of Jamaica's forest ecology and economy, by helping to maintain the limestone aquifers which are an important source of ground water in the south coast. But these forests are increasingly under pressure from coal farming, developments and mining, which in turn poses a potential threat to the fledgling iguana population.


UNDP-implemented GEF SGP makes strategic intervention


Understanding the importance of the Jamaican Iguana’s recovery to the survival of Jamaica’s dry forests, the UNDP-implemented Global Environment Facility (GEF) Small Grants Programme in 2012 got involved in the then 16-year-old globally-heralded conservation effort known as the Iguana Head Start initiative. SGP’s 2012 intervention was also consistent with Aichi Target number 12 – aimed at restoring endangered species to their natural habitats. By then the International Union for Conservation of Nature (IUCN) had placed the Jamaican Iguana on its Red List of Threatened Species where it remains today listed as critically endangered.

GEF SGP National Coordinator in Jamaica, Hyacinth Douglas said the programme focused on a critical gap in the Iguana Head Start programme – boosting the diagnostic and medical care capacities of Jamaica’s Hope Zoo Preservation Foundation to ensure that healthier, stronger and more resilient adults could be released into the wild capable of surviving its dangers. “Our grant provided the enclosures as well as the diagnostic centre which is like a hospital or medical centre for the animals, where the iguanas are tested. It was imported as a prefabricated kit and instTargeting Iguana health to make them resilient to predators.

Health screenings

The UNDP/GEF SGP- supported diagnostic building is used to conduct biannual health screening of the iguanas including weighing, blood testing, measuring, and other physical examinations, Milton Rieback further outlines. These checks are critical to the health of the iguana population and to assessing their readiness to survive predators and other dangers in their natural habitat. Below 1 kg in weight, their chances of survival are not good.

The objective is to get the iguanas to a certain length, weight (1 kg and above) and health of nose, mouth, eyes and teeth. These indicators are signposts to the iguana’s readiness to return to the wild.

“When new animals come to the zoo they are quarantined and tested for diseases. We keep them separated for a while until everything checks out, then we put them in their cages - three or five per cage - and we feed them on a specialized diet. They are mostly vegetarians. they love greens so they eat very healthy. They eat stuff like callaloo, cabbage, kale, tuna (a type of cactus),”alled at the Hope Zoo.”  

2018 - watershed for results

The results of the programme have been very positive but even more so in 2018. All the health indicators are pointing in the right direction. “This is the best health evaluation we have had in history.’ Rieback confirms.

“We are now averaging 50 to 100 kilograms weight gain per month on the medium sized”. Previously, weight gains were not as remarkable, and in some cases, weight losses of 50 – 100 kg per month were recorded.

"Record-breaking" results

Growth trends of the iguanas indicate that release times could be positively shortened. With health indicators on the up, the numbers of habitat-ready adults released into the wild have doubled. “This year we were able to release a total of 69 individuals over two releases. In the past only one release has occurred per year and the average released was 30 to 35,” discloses Dr Stesha Pasachnik of the Iguana Head Start project.

“This is a record breaking release, interjects Rieback. “Never in history have we released as many iguanas”.

Both Rieback and Taylor-Bloomfield say these successes would not be possible without the diagnostic centre and the new diet supported under the UNDP-implemented GEF SGP project.

It is just the latest in a string of victories recorded since the Head Start project started in 1996.

Since then some 400 iguanas have been returned to the Hellshire Hills but not all have survived, as invasive, predatory mongoose, feral cats, wild dogs and human activity continue to take their toll.

That is why, Rieback says, they are focused on increasing the numbers returned to Hellshire Hills to offset losses, while reducing the turnaround time for releases and strengthening the resilience and readiness of iguanas to withstand the dangers of their habitat.   

Goat Islands critical for long term survival of Iguana populations


Today, there are about 250 - 270 iguanas, from hatchling to adult at the Hope Zoo, representing 50% of the world’s population of the Jamaican Iguana, the Hope Zoo General Curator emphasizes.  “Jamaica has done the hard work of bringing it to a point of a breeding population”, he says, now there is need to secure Goat Islands as a pristine natural habitat that can be sanitized from all predators and developed as a danger free zone for their restoration and removal from the IUCN red list.

“This is like bringing dinosaurs back, this is like Jurassic park"

He has one more wish: that Jamaicans would embrace the reptiles, understand their importance to the circle of life and stop harming them. They are vegan reptiles, he explains, they tend to be intelligent, and possess personalities much like dogs.… "Jamaicans don’t understand what they have. They see it as just another lizard,” he states.     

He makes a final explosive point to prove that Jamaicans just don’t ‘get’ the fuss about the Iguana Head Start project: “This is possibly one of the most important conservation programmes on the planet”, Rieback passionately declares. “This is like bringing dinosaurs back, this is like Jurassic park. You are looking at an animal that was (thought to be) extinct. We are looking to a re-discovery, at a second chance”.  

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