Explore

The Journey of Species Survival is Durrell's main tool for planning and tracking how we deliver our mission of saving species from extinction. We monitor each species through 13 management stages and four main phases as our actions drive its population recovery from the brink of extinction back to safer levels.

Scroll, click and use your arrow keys to find out more information

Get started

Phase I: Assessment & Planning

Phase I: Assessment & Planning

The first phase of the survival journey focuses on gathering the information required to plan our approach to effectively manage the recovery of the species.

Rapid assessment

Rapid assessment

Durrell did not officially engage with this species until asked by the Government of Saint Lucia to establish a safety-net captive population. Therefore this stage was not completed by Durrell.

About the Rapid assessment stage
Field missions are used to assess species conservation status, key threats and initial actions needed to kick start the programme.

Rapid response

Rapid response

1986

Following a request from the Government of Saint Lucia, Durrell staff capture and transport five Saint Lucia whiptails to Jersey to establish a safety-net captive population.

About the Rapid response stage
If extinction risk is very high, captive breeding programmes or rapid field interventions might be used to avert an immediate risk of extinction.

Stakeholder engagement

Stakeholder engagement

1986

The Government of Saint Lucia approaches Durrell and requests the assistance of Durrell staff and their expertise to establish a captive population in Jersey.

About the Stakeholder engagement stage
Conservation actions are successfully increasing the species’ numbers and the programme structure is now capable of monitoring and adapting to new or re-emerging threats to the species.

Full assessment

Full assessment

1994

An assessment of the population of whiptails on Maria Major is conducted by Durrell staff to ensure the population is robust enough to withstand the removal of individuals for translocation to a different island. Data was also collected to assess the different relative densities in varying vegetation types on Maria Major.

About the Full assessment stage
Intensive research into ecological, environmental and socio-ecological factors affecting the species provides a baseline to inform the planning stage.

Planning & partnership

Planning & partnership

1994

As part of plans to translocate a population of whiptails to Praslin Island, a survey is conducted to assess the recovery of the vegetation following the eradication of rats the previous year. The island is considered suitable to support a population of whiptails and plans to translocate a population are cemented.

About the Planning and partnership stage
Conservation targets and detailed action plans are developed to guide the programme's efforts. Partnerships and governance are also outlined to ensure the programme remains on track.

Phase II: Intensive Care

Phase II: Intensive Care

This phase involves the testing and implementation of intensive management actions to tackle the main threats to a species in order to stabilise its population and promote recovery. It often requires the most resources as it lays the foundation for a species’ long-term recovery.

Trialling actions

Trialling actions

1998

Two translocations are successfully conducted as part of a trial to establish a sub-population on the recently restored Praslin Island. A total of 42 individuals are introduced to the island and monitoring shows the population quickly establishes despite the invasion of a rogue mongoose.

About the Trialling actions stage
Conservation actions are tested on the ground, results are monitored and techniques are adapted to develop effective management actions.

Scaling up actions

Scaling up actions

2008

Following the successful translocation of 42 individual whiptail lizards to Praslin Island, actions are scaled up by establishing a fourth sub-population on the recently restored Rat Island in an effort to increase species range and improve genetic diversity.

About the Scaling up actions stage
Once effective management actions are developed they can be rolled out across the intervention zone.

Intensive management

Intensive management

Ongoing

Intensive management of four sub-populations of the Saint Lucia whiptail lizards continues by maintaining strict biosecurity and surveillance to ensure early detection of any re-invasion of predatory mammals. Translocations from the Maria Islands to both Praslin and Rat Islands are continued to increase genetic diversity, and the restoration of Dennery Island is planned in order to conduct further translocations and increase the species range and population size.

About the Intensive management stage
After actions have been scaled up they are then intensively implemented to bring primary threats under control, enabling the start of the species' recovery.

Adaptive management

Future Target

About the Adaptive management stage
Conservation actions are successfully increasing the species’ numbers and the programme structure is now capable of monitoring and adapting to new or re-emerging threats to the species.

Phase III: Long-term Management

Phase III: Long-term Management

Once a species reaches this phase the population recovery is well underway but the sustainability and long-term robustness of the programme needs to be ensured.

Minimum management

Future Target

About the Minimum management stage
Moving towards sustainability, the intensive actions are scaled back to minimum levels of effort required to meet conservation targets.

Capacity-building

Future Target

About the Capacity-building stage
The capacity building activities within the programme enter the final stage and local partner(s) lead the strategic and operational management of programme.

Final evaluation

Future Target

About the Final evaluation stage
A detailed programme evaluation reviews progress towards conservation targets, final responsibilities are passed onto local partners and a new long-term action plan is agreed.

Phase IV: Watching Brief

Phase IV: Watching Brief

This phase signals the exit point for Durrell as a species reaches the end of its survival journey.

Watching brief

Future Target

About the Watching brief stage
Durrell steps back from the programme and provides technical support to local partners on request.

Population numbers


Rapid assessment


Phase I: Assessment & Planning

1986


Rapid response


Phase I: Assessment & Planning

1986


Stakeholder engagement


Phase I: Assessment & Planning

1994


Full assessment


Phase I: Assessment & Planning

1994


Planning & partnership


Phase I: Assessment & Planning

1998


Trialling actions


Phase II: Intensive Care

2008


Scaling up actions


Phase II: Intensive Care

Ongoing


Intensive management


Phase II: Intensive Care

Future Target


Adaptive management


Phase II: Intensive Care

Future Target


Minimum management


Phase III: Long-term Management

Future Target


Capacity-building


Phase III: Long-term Management

Future Target


Final evaluation


Phase III: Long-term Management

Future Target


Watching brief


Phase IV: Watching Brief

Phase I


Assessment
& Planning


Stages 1 - 5

Phase II


Intensive
Care


Stages 6 - 9

Phase III


Long-term Management


Stages 10 - 12

Phase IV


Watching
Brief


Stage 13