Progress of the Pseudepidalea viridis program
at Nordens Ark

Species

Pseudepidalea viridis

Common Name(s)

Green Toad;Crapaud Vert;Sapo Verde

Region where program is based

Europe

Country where program is based

Sweden

The authority that recommended this species for an ex situ program

Unknown (TBD)

Has a genetic analysis been performed on wild populations to define the target taxon, i.e., verify that single, viable Evolutionarily Significant Units (ESU's) that are managed as separate populations, are not confounded by cryptic species or polymorphisms?

No

Name of the institution managing the ex situ population

Nordens Ark

Year the program started

2002

Is at least some portion of the captive population maintained in range country?

Yes

Are sufficient resources available to manage the ex situ population?

Yes

Are adequate numbers of skilled staff available with the appropriate ex situ amphibian experience?

Yes

Is sufficient space available for the required population size?

Yes

Additional Support required

Has a Taxon Management Coordinator for the ex situ population been appointed?

Yes

Taxon Management Coordinator

Claes Andrén of Nordens Ark

Has a Taxon Management Group or Recovery Team been established?

Yes

Names and institutions of Taxon Management Group members

All ex situ work in Sweden for the moment is done by Nordens Ark. However, a group of people are working with the in situ work. These include several experts and regional conservation officers.

Has a Taxon Management Plan, Recovery Plan or Species Action Statement been written?

Yes

Web link to Taxon Management Plan

Have Husbandry Guidelines been written?

No

Web link to Husbandry Management Guidelines

Have any knowledge gaps in the species biology or in their interaction with potential threats been identified that could benefit from research using the ex situ population?

Yes

List of knowledge gaps

There is a need for testing why establishing of captive bred toads is so difficult. Compared to other threatened amphibian species we have been less successful in establishing viable populations. There seems to be difficulties that are not known to us.

Have founder needs been calculated using the AArk Amphibian Population Management Guidelines ?

No

Have sufficient potential founders been collected? ( AArk Amphibian Population Management Guidelines recommends a minimum of 20 pairs of found animals).

Yes

Is the ex situ population managed by nationals from the range country?

Yes

What tools are used to maximize retention of genetic diversity?

None

Has the population produced viable offspring?

Yes

Have the first generation captive-bred animals bred successfully?

Yes

Is the ex situ population housed in permanent isolation from other populations occurring outside its range?

Yes

Is work being supported to study and mitigate threats to the species in the wild, either by the institution or by a regional wildlife agency?

Yes

Have captive-bred or captive-reared animals been released into the wild?

Yes

If releases were undertaken, have disease screening protocols or veterinary health checks been conducted prior to releases to the wild?

Yes

Is follow-up work being carried out to monitor progress of the released animals?

Yes

Is the taxon again secure in the wild, even if it might still require some ongoing in situ management? i.e. has the need for a captive assurance population been obviated such that we can call this a successfully terminated captive rescue program?

No

Comments

Additional resources are required for expansion of the project. Responsible conservation authorities welcome Nordens Arks work, but are not able to financially support it. Every year eggs from 20 different females are collected in the field and raised ex situ for re stocking in week populations before hibernation in late September as newly metamorphosed or later as semi adults. Captive-reared and released animals have bred in the wild. There is a continuous need for captive breeding and rearing animals for release in the wild, at least another three years.
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