Progress of Programs

Amphibian Ark has been helping zoos, aquariums and other ex situ (captive) facilities to address the captive components of the Amphibian Conservation Action Plan, to save as many species as possible. For the past few years we have monitored and documented the great progress of ex situ amphibian rescue programs around the world. The progress of these programs includes a series of key steps in the progression of successful amphibian conservation programs. The programs that we monitor include those assessed during an Amphibian Conservation Needs Assessment as needing urgent ex situ rescue or research, and similar programs in countries where an AArk conservation needs assessment has not yet been carried out. The results of all conservation need assessments can be viewed on the Assessment Results page of our web site.

The programs in this list show a significant achievement by the ex situ amphibian conservation community towards reducing declining amphibian populations. By documenting this progress we are showing that zoos, aquariums and other ex situ facilities are making a vital conservation contribution towards reducing the loss of amphibian species, and for our community to be broadly acknowledged as a credible conservation partner. We have recently started to include species assessed as requiring ex situ research for conservation purposes, such as analog species from which we can develop husbandry protocols for more threatened related species.

Where possible, all amphibian programs that will ultimately result in reintroduction or translocation programs should be operated within the native range of the species. Maintaining these populations within the range country generally results in lower disease risks than programs that are located outside the native range of the species. This helps to reduce the risks of introducing non‐native pathogens into the environment around the facility holding the amphibians, and the possibility of introducing novel local pathogens to amphibians that are collected and housed outside of the range country.

Amphibian conservation programs that meet AArk’s definition of a “model program”, i.e. the program is based within the range country; and the population being managed is housed in isolation from other populations occurring outside its range, can be viewed on our Model Programs web page.

The following list includes all programs that are currently being monitored by the Amphibian Ark. Definitions for the table headings and categories are provided below the table. Click the species names to view full details for each program. Some of the columns can be filtered or sorted by clicking on the column headings. For a wider range of filtering options, the same data can be viewed on our data portal, where there are links to quickly filter by program category, species or country.

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Finished successfully Finished

Species Category Country Institution Start Phylogeny Range Isolated Offspring F2 Releases Last Update
Ambystoma laterale Supplementation (Other) United States Omaha's Henry Doorly Zoo 2010 2012
Anaxyrus baxteri Ark (CNAW) United States AZA institutions 1994 2022
Atelopus glyphus Rescue (CNAW) Panama El Valle Amphibian Conservation Center 2005 2011
Atelopus palmatus Rescue (CNAW) Ecuador Centro Jambatu de Investigación y Conservación de Anfibios 2011 2011
Atelopus varius Rescue (CNAW) United States AZA institutions 2001 2011
Atelopus wampukrum Rescue (Other) Ecuador Centro Jambatu de Investigación y Conservación de Anfibios 2011 2011
Atelopus wampukrum Rescue (Other) Ecuador Pontificia Universidad Católica del Ecuador 2005 2016
Atelopus zeteki Rescue (CNAW) United States AZA institutions 2001 2015
Calotriton arnoldi Rescue (Other) Spain Generalitat de Catalunya 2007 2021
Centrolene buckleyi Rescue (CNAW) Ecuador Pontificia Universidad Católica del Ecuador 2005 2016
Cryptobranchus alleganiensis bishopi Ex situ research (CNAW) United States AZA institutions 2003 2011
Duellmanohyla uranochroa Rescue (CNAW) Costa Rica Costa Rican Amphibian Research Center 2005 2012
Echinotriton andersoni Ex situ research (Other) United States AZA institutions 1997 2011
Echinotriton chinhaiensis Ex situ research (Other) China Chengdu Institute 1999 2011
Epipedobates anthonyi Rescue (Other) Ecuador Conservation Center for Amphibians-Amaru 2005 2017
Cryptobranchus alleganiensis alleganiensis Supplementation (Other) United States Mesker Park Zoo 2016 2020
Atelopus certus Rescue (CNAW) Panama Panama Amphibian Rescue and Conservation Project 2009 2018
Gastrotheca litonedis Rescue (Other) Ecuador Centro Jambatu de Investigación y Conservación de Anfibios 2011 2011
Gastrotheca litonedis Rescue (Other) Ecuador Pontificia Universidad Católica del Ecuador 2005 2016
Gastrotheca orophylax Rescue (Other) Ecuador Centro Jambatu de Investigación y Conservación de Anfibios 2011 2013
Gastrotheca pseustes Rescue (Other) Ecuador Centro Jambatu de Investigación y Conservación de Anfibios 2011 2011
Atelopus nanay Rescue (CNAW) Ecuador Centro Jambatu de Investigación y Conservación de Anfibios 2011 2013
Atelopus coynei Rescue (Other) Ecuador Centro Jambatu de Investigación y Conservación de Anfibios 2012 2013
Atelopus elegans Ex situ research (CNAW) Ecuador Centro Jambatu de Investigación y Conservación de Anfibios 2011 2017
Atelopus spumarius Rescue (CNAW) Ecuador Centro Jambatu de Investigación y Conservación de Anfibios 2011 2013
Centrolene buckleyi Rescue (CNAW) Ecuador Centro Jambatu de Investigación y Conservación de Anfibios 2012 2014
Gastrotheca pseustes Rescue (Other) Ecuador Pontificia Universidad Católica del Ecuador 2005 2016
Gastrotheca riobambae Ex situ research (CNAW) Ecuador Centro Jambatu de Investigación y Conservación de Anfibios 2011 2013
Gastrotheca riobambae Ex situ research (CNAW) Ecuador Pontificia Universidad Católica del Ecuador 2003 2016
Geocrinia vitellina Supplementation (Other) Australia Perth Zoo 2006 2021
Ecnomiohyla rabborum Rescue (CNAW) United States Atlanta Botanical Garden 2005 2012
Gastrotheca testudinea Rescue (Other) Ecuador Centro Jambatu de Investigación y Conservación de Anfibios 2012 2013
Gastrotheca plumbea Rescue (Other) Ecuador Centro Jambatu de Investigación y Conservación de Anfibios 2012 2013
Ambystoma cingulatum Rescue (CNAW) United States Brevard Zoo 2022 2022
Anaxyrus boreas Ex situ research (CNAW) United States Denver Zoo 2005 2012
Atelopus limosus (Upland, chevron) Rescue (CNAW) Panama Panama Amphibian Rescue and Conservation Project 2009 2018
Atelopus limosus (Lowland, brown) Rescue (CNAW) Panama Panama Amphibian Rescue and Conservation Project 2009 2016
Atelopus palmatus Rescue (CNAW) Ecuador Pontificia Universidad Católica del Ecuador 2005 2016
Batrachoseps attenuatus Ex situ research (CNAW) Canada Vancouver Aquarium 2005 2019
Pleurodema somuncurense Rescue (CNAW) Argentina Ecoparque de Buenos Aires 2022 2022
Atelopus pinangoi Rescue (CNAW) Venezuela, Bolivarian Republic of Universidad Nacional Experimental de los Llanos Occidentales Ezequiel Zamora 2005 2011
Gastrotheca cornuta Rescue (CNAW) Panama Panama Amphibian Rescue and Conservation Project 2009 2018
Echinotriton andersoni Ex situ research (Other) Japan Ueno Zoo and Neopark Okinawa 1997 2011
Ambystoma californiense Rescue (CNAW) United States Shaffer Lab at UCLA 2005 2012
Oophaga lehmanni Rescue (Other) Colombia Fundación Zoológica de Cali - CREA 2018 2022
Atelopus cruciger Rescue (Other) Venezuela, Bolivarian Republic of Fundación para el Desarrollo de las Ciencias Físicas (FUDECI) 2021 2023
Lithobates chiricahuensis Supplementation (Other) United States Fort Worth Zoo 2012 2021
Eleutherodactylus brevirostris Ex situ research (CNAW) United States Philadelphia Zoo 2005 2010
Eleutherodactylus caribe Rescue (CNAW) United States Philadelphia Zoo 2010 2011
Atelopus varius Rescue (CNAW) Panama Panama Amphibian Rescue and Conservation Project 2009 2018
Craugastor tabasarae Rescue (CNAW) Panama El Valle Amphibian Conservation Center 2006 2011
Craugastor punctariolus Rescue (CNAW) Panama El Valle Amphibian Conservation Center 2006 2011
Cochranella euknemos Rescue (CNAW) Panama El Valle Amphibian Conservation Center 2006 2011
Atelopus glyphus Rescue (CNAW) Panama Panama Amphibian Rescue and Conservation Project 2009 2018
Atelopus zeteki Rescue (CNAW) Panama Panama Amphibian Rescue and Conservation Project 2005 2018
Anotheca spinosa Rescue (CNAW) Panama Panama Amphibian Rescue and Conservation Project 2007 2018
Hylomantis lemur Rescue (CNAW) United Kingdom Manchester Museum 2001 2017
Hyloscirtus pantostictus Ex situ research (CNAW) Ecuador Pontificia Universidad Católica del Ecuador 2005 2016
Hyloscirtus princecharlesi Rescue (Other) Ecuador Centro Jambatu de Investigación y Conservación de Anfibios 2011 2011
Gastrotheca litonedis Rescue (Other) Ecuador Conservation Center for Amphibians-Amaru 2011 2014
Ambystoma cingulatum Rescue (CNAW) United States Riverbanks Zoo 2010 2014
Ambystoma bishopi Rescue (CNAW) United States Jacksonville Zoo 2005 2015
Ambystoma dumerilii Rescue (CNAW) Mexico Chapultepec Zoo 2016 2017
Hyloxalus jacobuspetersi Rescue (CNAW) Ecuador Centro Jambatu de Investigación y Conservación de Anfibios 2012 2013
Leiopelma archeyi Rescue (Other) New Zealand Auckland Zoo 2003 2013
Taudactylus pleione Rescue (Other) Australia Currumbin Wildlife Sanctuary 2018 2020
Ambystoma dumerilii Rescue (CNAW) United Kingdom Chester Zoo 2018 2018
Eurycea nana Ex situ research (CNAW) United States City of Austin 2005 2010
Ambystoma dumerilii Rescue (CNAW) Netherlands EAZA institutions 2021 2022
Cryptobranchus alleganiensis bishopi Ex situ research (CNAW) United States St. Louis Zoo 2005 2016
Eurycea nana Ex situ research (CNAW) United States San Marcos Aquatic Resources Center 2005 2012
Eurycea sosorum Ex situ research (CNAW) United States City of Austin 2005 2010
Eurycea sosorum Ex situ research (CNAW) United States San Marcos Aquatic Resources Center 2005 2012
Phyllobates terribilis Ex situ research (CNAW) Colombia Parque Explora 2013 2014
Eurycea spelaea Ex situ research (CNAW) United States Detroit Zoo 2005 2018
Eurycea spelaea Ex situ research (CNAW) United States Toledo Zoo 2005 2018
Eurycea tonkawae Ex situ research (CNAW) United States City of Austin 2005 2018
Leptodactylus fallax Rescue (CNAW) Netherlands EAZA institutions 1999 2013
Leiopelma hochstetteri Rescue (Other) New Zealand Hamilton Zoo 2006 2013
Anaxyrus hemiophrys Ex situ research (CNAW) United States Toledo Zoo 2005 2012
Ceratophrys ornata Rescue (Other) Argentina Conservación de Anfibios en Argentina 2022 2022
Lithobates sevosus Rescue (CNAW) United States AZA institutions 2001 2021
Lithobates vibicarius Rescue (CNAW) United Kingdom Chester Zoo 2005 2019
Litoria aurea Supplementation (Other) Australia Taronga Zoo 1995 2012
Litoria booroolongensis Supplementation (Other) Australia Taronga Zoo 2007 2014
Litoria castanea Rescue (Other) Australia Taronga Zoo 2010 2018
Ctenophryne aequatorialis Rescue (CNAW) Ecuador Centro Jambatu de Investigación y Conservación de Anfibios 2011 2011
Neurergus microspilotus Rescue (CNAW) Iran, Islamic Republic of Razi University 2009 2012
Rhinoderma darwinii Ex situ research (CNAW) Chile Universidad de Concepción 2009 2016
Hyloxalus anthracinus Rescue (CNAW) Ecuador Pontificia Universidad Católica del Ecuador 2005 2016
Pelophylax porosus brevipoda Ex situ research (CNAW) Japan Asa Zoo 2005 2011
Peltophryne lemur Rescue (CNAW) United States AZA institutions 1980 2022
Telmatobius culeus Rescue (CNAW) Peru Zoológico Huachipa 2005 2016
Hyloxalus delatorreae Rescue (CNAW) Ecuador Pontificia Universidad Católica del Ecuador 2005 2016
Telmatobius dankoi Rescue (Other) Chile Parque Metropolitano de Santiago/Parquemet National Zoo 2019 2021
Pseudepidalea viridis Supplementation (Other) Sweden Nordens Ark 2002 2016
Pseudophryne pengilleyi Rescue (Other) Australia ZAA institutions 2003 2022
Rana pretiosa Supplementation (Other) Canada Vancouver Aquarium 2010 2019
Mantella aurantiaca Rescue (CNAW) Madagascar Association Mitsinjo 2012 2019
Geocrinia alba Supplementation (Other) Australia Perth Zoo 2008 2022
Strabomantis bufoniformis Rescue (CNAW) Panama El Valle Amphibian Conservation Center 2006 2016
Hyloxalus jacobuspetersi Rescue (CNAW) Ecuador Pontificia Universidad Católica del Ecuador 2005 2016
Scinax alcatraz Rescue (Other) Brazil Fundação Parque Zoológico de São Paulo 2011 2021
Scinax perpusillus Ex situ research (CNAW) Brazil Fundação Parque Zoológico de São Paulo 2008 2012
Alytes muletensis Rescue (CNAW) Netherlands EAZA institutions 1985 2011
Pseudophryne corroboree Rescue (Other) Australia ZAA institutions 2002 2022
Spicospina flammocaerulea Rescue (Other) Australia Perth Zoo 2007 2012
Craugastor punctariolus Rescue (CNAW) United States Atlanta Botanical Garden 2005 2012
Philoria frosti Rescue (Other) Australia Amphibian Research Centre 2003 2010
Plectrohyla acanthodes Rescue (CNAW) Mexico Africam Safari 2009 2013
Litoria raniformis Supplementation (Other) Australia ZAA institutions 1999 2011
Neurergus kaiseri Rescue (CNAW) Sweden Parken Zoo 2003 2016
Megophrys nasuta Rescue (CNAW) Singapore Singapore Zoo 2005 2021
Rana muscosa Ex situ research (CNAW) United States San Diego Zoo Institute for Conservation Research 2005 2019
Hemiphractus fasciatus Rescue (CNAW) Panama El Valle Amphibian Conservation Center 2005 2011
Hylarana taipehensis Rescue (Other) Taiwan, Province of China Taipei Zoo 2011 2021
Proteus anguinus Ex situ research (CNAW) Slovenia Zoo Ljubljana 2010 2011
Rhinoderma darwinii Ex situ research (CNAW) Chile Parque Metropolitano de Santiago/Parquemet National Zoo 2005 2021
Telmatobufo venustus Ex situ research (CNAW) Chile Parque Metropolitano de Santiago/Parquemet National Zoo 2005 2021
Incilius cristatus Rescue (Other) Mexico Africam Safari 2008 2021
Hyloscirtus colymba Rescue (CNAW) Panama Panama Amphibian Rescue and Conservation Project 2005 2011
Rana pretiosa Supplementation (Other) United States Woodland Park Zoo 2007 2015
Hyalinobatrachium vireovittatum Rescue (CNAW) Panama El Valle Amphibian Conservation Center 2006 2011
Pristimantis museosus Rescue (CNAW) Panama El Valle Amphibian Conservation Center 2006 2011
Sachatamia ilex Rescue (CNAW) Panama El Valle Amphibian Conservation Center 2005 2011
Silverstoneia nubicola Rescue (CNAW) Panama El Valle Amphibian Conservation Center 2006 2011
Hylomantis lemur Rescue (CNAW) Panama Panama Amphibian Rescue and Conservation Project 2007 2018
Eleutherodactylus richmondi Rescue (CNAW) United States Albuquerque Zoo 2005 2012
Gastrotheca sp. Not yet assessed (Other) Ecuador Centro Jambatu de Investigación y Conservación de Anfibios 2011 2011
Atelopus sp. nov (Cordillera del condor) Rescue (Other) Ecuador Pontificia Universidad Católica del Ecuador 2005 2016
Lithobates vibicarius Rescue (CNAW) Costa Rica University of Costa Rica 2016 2018
Hyloscirtus sp. nov. Not yet assessed (Other) Ecuador Pontificia Universidad Católica del Ecuador 2005 2016
Ambystoma dumerilii Rescue (CNAW) Mexico Monastery of the Dominican of Order 2005 2021
Lithobates capito Ex situ research (CNAW) United States Atlanta Botanical Garden 2006 2015
Atelopus balios Rescue (CNAW) Ecuador Centro Jambatu de Investigación y Conservación de Anfibios 2011 2017
Atelopus sp. (spumarius-pulcher complex) Rescue (Other) Ecuador Centro Jambatu de Investigación y Conservación de Anfibios 2008 2013
Necturus alabamensis Ex situ research (CNAW) United States Cincinnati Zoo & Botanical Garden 2005 2016
Telmatobius culeus Rescue (CNAW) Bolivia, Plurinational State of Centro K’ayra de Investigación y Conservación Anfibios Amenazados de Bolivia (Museo de Historia Natural Alcide d'Orbigny) 2008 2021
Rana muscosa Ex situ research (CNAW) United States Los Angeles Zoo 2010 2022
Agalychnis moreletii Ex situ research (Other) United Kingdom Chester Zoo 2005 2018
Litoria spenceri Supplementation (Other) Australia ZAA institutions 2003 2022
Philoria frosti Rescue (Other) Australia Melbourne Zoo 2011 2020
Phyllobates terribilis Ex situ research (CNAW) Colombia Fundación Zoológica de Cali - CREA 2006 2017
Xenopus longipes Ex situ research (Other) Netherlands EAZA institutions 2008 2018
Sechellophryne pipilodryas Ex situ research (Other) Seychelles Nature Protection Trust of Seychelles 2008 2012
Sooglossus sechellensis Ex situ research (Other) Seychelles Nature Protection Trust of Seychelles 2008 2012
Sooglossus thomasseti Ex situ research (Other) Seychelles Nature Protection Trust of Seychelles 2008 2012
Lithobates chiricahuensis Supplementation (Other) United States Phoenix Zoo 2005 2021
Nectophrynoides asperginis Rescue (Other) Tanzania, United Republic of University of Dar es Salaam 2010 2016
Telmatobius timens Rescue (CNAW) Bolivia, Plurinational State of Huaysca 2005 2014
Hyperolius pickersgilli Rescue (CNAW) South Africa Johannesburg Zoo 2012 2022
Nectophrynoides asperginis Rescue (Other) United States AZA institutions 2000 2016
Mannophryne collaris Rescue (CNAW) Venezuela, Bolivarian Republic of Rescue of Endangered Venezuelan Amphibians Program 2015 2021
Telmatobufo bullocki Ex situ research (CNAW) Chile Parque Metropolitano de Santiago/Parquemet National Zoo 2005 2009
Mixophyes balbus Ex situ research (Other) Australia Melbourne Zoo 2005 2012
Mixophyes fleayi Rescue (Other) Australia Lone Pine Koala Sanctuary 2003 2011
Sechellophryne gardineri Ex situ research (Other) Seychelles Nature Protection Trust of Seychelles 2000 2011
Pithecopus rusticus Rescue (CNAW) Brazil Parque das Aves 2021 2022
Alsodes vanzolinii Rescue (CNAW) Chile Universidad de Concepción 2013 2016
Hyperolius pickersgilli Rescue (CNAW) South Africa South African Association for Marine Biological Research 2013 2014
Pleurodema somuncurense Rescue (CNAW) Argentina La Plata University 2014 2022
Ambystoma bishopi Rescue (CNAW) United States San Antonio Zoo 2012 2013
Cryptobranchus alleganiensis alleganiensis Supplementation (Other) United States Buffalo Zoo 2009 2013
Platymantis insulatus Rescue (Other) Philippines Project Palaka 2019 2023
Ambystoma dumerilii Rescue (CNAW) Mexico FAUNAM 2012 2012
Pristimantis renjiforum Rescue (Other) Colombia Zoo Santacruz 2012 2021
Eurycea wallacei Ex situ research (CNAW) United States San Antonio Zoo 2012 2019
Ctenophryne aequatorialis Rescue (CNAW) Ecuador Pontificia Universidad Católica del Ecuador 2005 2016
Rana sierrae Ex situ research (CNAW) United States San Francisco Zoological Gardens 2012 2015
Lithobates capito Rescue (Other) United States North Carolina Aquarium 2011 2016
Telmatobius culeus Rescue (CNAW) United States Denver Zoo 2015 2017
Atelopus nanay Rescue (CNAW) Ecuador Pontificia Universidad Católica del Ecuador 2005 2016
Gastrotheca riobambae Ex situ research (CNAW) Ecuador Quito Zoo 2014 2016
Leiopelma pakeka Rescue (Other) New Zealand Zealandia - Karori Sanctuary 2006 2016
Craugastor evanesco Rescue (Other) Panama Panama Amphibian Rescue and Conservation Project 2015 2018
Ecnomiohyla miliaria Rescue (CNAW) Panama El Valle Amphibian Conservation Center 2006 2011
Andinobates geminisae Rescue (Other) Panama Panama Amphibian Rescue and Conservation Project 2015 2018
Anaxyrus houstonensis Rescue (CNAW) United States Houston Zoo 2007 2022
Atelopus elegans Ex situ research (CNAW) Ecuador Pontificia Universidad Católica del Ecuador 2009 2016
Atelopus pachydermus Rescue (CNAW) Ecuador Pontificia Universidad Católica del Ecuador 2016 2016
Atelopus longirostris Rescue (CNAW) Ecuador Pontificia Universidad Católica del Ecuador 2016 2016
Atelopus spumarius Rescue (CNAW) Ecuador Pontificia Universidad Católica del Ecuador 2007 2016
Atelopus sp. (condor) Rescue (Other) Ecuador Pontificia Universidad Católica del Ecuador 2010 2016
Hyloscirtus condor Rescue (Other) Ecuador Pontificia Universidad Católica del Ecuador 2016 2016
Atelopus exiguus Rescue (CNAW) Ecuador Pontificia Universidad Católica del Ecuador 2005 2016
Atelopus nanay Rescue (CNAW) Ecuador Conservation Center for Amphibians-Amaru 2010 2017
Atelopus wampukrum Rescue (Other) Ecuador Conservation Center for Amphibians-Amaru 2012 2017
Ctenophryne aequatorialis Rescue (CNAW) Ecuador Conservation Center for Amphibians-Amaru 2009 2017
Neurergus kaiseri Rescue (CNAW) Germany Gerhart-Hauptmann-School 2012 2017
Ambystoma cingulatum Rescue (CNAW) United States The Amphibian Foundation 2017 2022
Lithobates capito Ex situ research (CNAW) United States The Amphibian Foundation 2017 2022
Ambystoma dumerilii Rescue (CNAW) Mexico Parque Ecológico Zacango 2017 2021
Anotheca spinosa Rescue (CNAW) United States Atlanta Botanical Garden 2005 2013
Cochranella euknemos Rescue (CNAW) United States Atlanta Botanical Garden 2005 2013
Eurycea wallacei Ex situ research (CNAW) United States Atlanta Botanical Garden 2012 2013
Gastrotheca cornuta Rescue (CNAW) United States Atlanta Botanical Garden 2005 2013
Hylomantis lemur Rescue (CNAW) United States Atlanta Botanical Garden 2005 2013
Strabomantis bufoniformis Rescue (CNAW) United States Atlanta Botanical Garden 2005 2013
Ambystoma bishopi Rescue (CNAW) United States Atlanta Botanical Garden 2012 2015
Atelopus exiguus Rescue (CNAW) Ecuador Conservation Center for Amphibians-Amaru 2016 2017
Atelopus bomolochos Rescue (CNAW) Ecuador Conservation Center for Amphibians-Amaru 2016 2022
Atelopus spumarius Rescue (CNAW) Ecuador Conservation Center for Amphibians-Amaru 2016 2017
Rulyrana mcdiarmidi Ex situ research (Other) Ecuador Conservation Center for Amphibians-Amaru 2014 2017
Ambystoma dumerilii Rescue (CNAW) Mexico Universidad Michoacana de San Nicolás de Hidalgo 2018 2021
Hyloscirtus tapichalaca Ex situ research (CNAW) Ecuador Conservation Center for Amphibians-Amaru 2015 2017
Hyloxalus delatorreae Rescue (CNAW) Ecuador Conservation Center for Amphibians-Amaru 2011 2014
Hyloxalus anthracinus Rescue (CNAW) Ecuador Conservation Center for Amphibians-Amaru 2012 2014
Gastrotheca pseustes Ex situ research (Other) Ecuador Conservation Center for Amphibians-Amaru 2010 2017
Nymphargus bejaranoi Rescue (CNAW) Bolivia, Plurinational State of Centro K’ayra de Investigación y Conservación Anfibios Amenazados de Bolivia (Museo de Historia Natural Alcide d'Orbigny) 2019 2021
Atelopus ignescens Rescue (CNAW) Ecuador Centro Jambatu de Investigación y Conservación de Anfibios 2016 2017
Agalychnis annae Supplementation (CNAW) Costa Rica Simón Bolívar Zoo 2016 2017
Atelopus longirostris Rescue (CNAW) Ecuador Centro Jambatu de Investigación y Conservación de Anfibios 2016 2020
Calotriton arnoldi Rescue (Other) United Kingdom Chester Zoo 2016 2017
Gastrotheca riobambae Ex situ research (CNAW) Ecuador Universidad Técnica del Cotopaxi 2013 2013
Telmatobius simonsi Rescue (CNAW) Bolivia, Plurinational State of Centro K’ayra de Investigación y Conservación Anfibios Amenazados de Bolivia (Museo de Historia Natural Alcide d'Orbigny) 2011 2021
Telmatobius yuracare Rescue (CNAW) Bolivia, Plurinational State of Centro K’ayra de Investigación y Conservación Anfibios Amenazados de Bolivia (Museo de Historia Natural Alcide d'Orbigny) 2003 2021
Taudactylus liemi Ex situ research (Other) Australia Currumbin Wildlife Sanctuary 2011 2017
Ambystoma tigrinum Ex situ research (CNAW) United States The Amphibian Foundation 2017 2018
Pachyhynobius shangchengensis Ex situ research (Other) United States Houston Zoo 2005 2017
Eurycea rathbuni Ex situ research (CNAW) United States AZA institutions 2009 2017
Necturus beyeri Ex situ research (CNAW) United States Jacksonville Zoo 2013 2017
Phaeognathus hubrichti Ex situ research (CNAW) United States Cincinnati Zoo & Botanical Garden 2005 2017
Telmatobius gigas Rescue (CNAW) Bolivia, Plurinational State of Centro K’ayra de Investigación y Conservación Anfibios Amenazados de Bolivia (Museo de Historia Natural Alcide d'Orbigny) 2018 2021
Telmatobius oxycephalus Ex situ research (CNAW) Argentina Museo Argentino de Ciensias Naturales 2012 2018
Andrias japonicus Ex situ research (CNAW) Japan Asa Zoo 1971 2011
Eurycea neotenes Ex situ research (CNAW) United States San Marcos Aquatic Resources Center 2005 2010
Telmatobius hintoni Rescue (CNAW) Bolivia, Plurinational State of Centro K’ayra de Investigación y Conservación Anfibios Amenazados de Bolivia (Museo de Historia Natural Alcide d'Orbigny) 2006 2021
Cryptobranchus alleganiensis alleganiensis Ex situ research (CNAW) United States AZA institutions 2011 2016
Telmatobius culeus Rescue (CNAW) Peru Universidad Peruana Cayetano Heredia 2007 2017
Eurycea rathbuni Ex situ research (CNAW) United States San Marcos Aquatic Resources Center 2005 2012
Phyllobates terribilis Ex situ research (CNAW) Colombia Parque Zoológico Santa Fe 2012 2016
Cycloramphus eleutherodactylus Ex situ research (CNAW) Brazil Fundação Parque Zoológico de São Paulo 2013 2013
Aromobates zippeli Rescue (Other) Venezuela, Bolivarian Republic of Rescue of Endangered Venezuelan Amphibians Program 2017 2021
Laotriton laoensis Rescue (Other) Germany Cologne Zoo 2019 2019
Melanophryniscus nigricans Rescue (CNAW) Argentina National University of the Centre of Buenos Aires Province 2017 2021
Eleutherodactylus furcyensis Ex situ research (CNAW) United States Philadelphia Zoo 2010 2015
Lithobates areolatus Supplementation (Other) United States Detroit Zoo 2012 2016
Atelopus hoogmoedi Ex situ research (Other) Brazil Fundação Parque Zoológico de São Paulo 2022 2022
Conraua derooi Rescue (Other) Ghana Herp Conservation Ghana (Herp-Ghana) 2020 2020
Gegeneophis tejaswini Ex situ research (CNAW) India Central University of Kerala 2019 2016
Gastrotheca gracilis Rescue (Other) Argentina Instituto de Ecorregiones Andinas (INECOA, UNJu-CONICET) 2018 2022
Aromobates duranti Rescue (Other) Venezuela, Bolivarian Republic of Rescue of Endangered Venezuelan Amphibians Program 2018 2021
Epidalea calamita Supplementation (Other) Denmark Copenhagen Zoo 2008 2020
Atelopus zeteki Rescue (CNAW) Panama El Valle Amphibian Conservation Center 2007 2007
Gastrotheca cornuta Rescue (CNAW) Panama El Valle Amphibian Conservation Center 2007 2007
Atelopus varius Rescue (CNAW) Panama El Valle Amphibian Conservation Center 2007 2007
Anotheca spinosa Rescue (CNAW) Panama El Valle Amphibian Conservation Center 2007 2007
Isthmohyla graceae Rescue (CNAW) Panama El Valle Amphibian Conservation Center 2010 2010
Smilisca dentata Rescue (CNAW) United States San Antonio Zoo 2005 2013
Bombina pachypus Rescue (Other) Italy Fondazione Bioparco di Roma 2012 2021
Euproctus platycephalus Rescue (Other) Italy Fondazione Bioparco di Roma 2009 2021
Nyctixalus pictus Ex situ research (CNAW) Singapore Singapore Zoo 2005 2016
Leiopelma hamiltoni Rescue (Other) New Zealand Orana Wildlife Park 2020 2021
Ambystoma andersoni Rescue (Other) Mexico Universidad Michoacana de San Nicolás de Hidalgo 2019 2021
Aparasphenodon pomba Rescue (CNAW) Brazil Fundação Parque Zoológico de São Paulo 2019 2021
Leptodactylus meridensis Rescue (Other) Venezuela, Bolivarian Republic of Rescue of Endangered Venezuelan Amphibians Program 2016 2021
Aromobates meridensis Rescue (CNAW) Venezuela, Bolivarian Republic of Rescue of Endangered Venezuelan Amphibians Program 2016 2021
Ambystoma taylori Rescue (Other) Mexico Africam Safari 2018 2021
Gastrotheca testudinea Rescue (Other) Ecuador Fundación Herpetológica Gustavo Orcés 2013 2013
Hyloscirtus tigrinus Rescue (CNAW) Ecuador Fundación Herpetológica Gustavo Orcés 2013 2016
Gastrotheca riobambae Ex situ research (CNAW) Ecuador Fundación Herpetológica Gustavo Orcés 2015 2021
Atelopus varius Rescue (CNAW) United Kingdom Manchester Museum 2018 2021
Telmatobius macrostomus Rescue (CNAW) Peru Zoológico Huachipa 2017 2021
Heleioporus australiacus Rescue (Other) Australia Melbourne Zoo 2021 2021
Ecnomiohyla valancifer Rescue (Other) Mexico Universidad Nacional Autónoma de México 2020 2021
Atelognathus patagonicus Rescue (CNAW) Argentina Delegación Sur de Parques Nacionales 2018 2021
Paradactylodon gorganensis Rescue (Other) Iran, Islamic Republic of Damghan University 2021 2021
Telmatobius macrostomus Rescue (CNAW) Peru Junin Amphibian Conservation Center 2021 2021
Litoria spenceri Rescue (Other) Australia Healesville Sanctuary 2021 2021
Epidalea calamita Rescue (Other) Ireland Fota Wildlife Park 2019 2022
Rana sierrae Supplementation (Other) United States Oakland Zoo 2015 2021
Eleutherodactylus portoricensis Rescue (CNAW) Puerto Rico University of Puerto Rico at Humacao 2013 2014
Cryptobranchus alleganiensis alleganiensis Ex situ research (CNAW) United States Nashville Zoo 2005 2013
Ambystoma mexicanum Rescue (Other) Mexico Chapultepec Zoo 2020 2021
Ambystoma altamirani Rescue (CNAW) Mexico Chapultepec Zoo 2020 2020
Ambystoma mexicanum Rescue (Other) Mexico Centro de Investigaciones Biológicas y Acuícolas de Cuemanco 2020 2020
Peltophryne longinasus Rescue (CNAW) Cuba Luis Díaz 2005 2011
Bolitoglossa conanti Ex situ research (CNAW) United States Toledo Zoo 2005 2010
Bolitoglossa rufescens Ex situ research (CNAW) United States Toledo Zoo 2005 2011
Gyrinophilus porphyriticus Ex situ research (CNAW) United States Toledo Zoo 2005 2011
Eurycea chisholmensis Rescue (CNAW) United States Dallas Zoo 2005 2010
Amphiuma pholeter Ex situ research (CNAW) United States Philadelphia Zoo 2005 2012
Cryptobranchus alleganiensis alleganiensis Supplementation (Other) United States Kentucky Department of Fish and Wildlife 2017 2022
Melanophryniscus estebani Rescue (CNAW) Argentina National University of San Luis 2022 2022
Alytes dickhilleni Ex situ research (CNAW) Spain ZooBotànico Jerez 2010 2012

Definitions

Species – Click these species name to view the complete information for each model program.

Category – the type of conservation program

  • Rescue (CNAW) – Designated as requiring rescue during a Conservation Needs Assessment Workshop. A species that is in imminent danger of extinction (locally or globally) and requires ex situ management, as part of an integrated program, to ensure its survival.
  • Rescue (Other) – Not designated as rescue during an assessment, but managed by national/local experts as such because no assessment has been completed.
  • Supplementation (CNAW) – Designated as requiring a supplementation program during a Conservation Needs Assessment Workshop. A species for which ex situ management benefits the wild population through breeding for release as part of the recommended conservation action.
  • Supplementation (Other) – Not designated as supplementation during a Conservation Needs Assessment Workshop, but managed by national/local experts as such because either (1) no assessment has been completed or (2) national/local experts wish to manage the species as a supplementation for other reasons, e.g. this is not uncommon where a species is not threatened globally but populations are struggling at the edges of the range. It is not a global priority assessment, but it is a very valid effort to keep common species common, particularly at the extremes of their distribution.
  • Ex situ research (CNAW) – Either recommended for some form of ex situ research (e.g. natural history, biochemical or genetic studies) at a Conservation Needs Assessment Workshop, or being used as an analog for a species recommended for rescue during an assessment.

Start – the year the conservation program began.

Phylogeny – a complete phylogenetic analysis of the species in the wild has been carried out, to understand the functional unit being conserved (i.e. species limits have been determined).

Range – most or all of the ex situ population is maintained in the range country.

Isolated – the ex situ population in housed in isolation from other populations occurring outside its range.

Offspring – the population has produced viable offspring.

F2 – first generation captive-bred animals have reproduced successfully.

Releases – captive-bred or captive-reared animals have been released to the wild